Southern Water: owners, rescue and enforcement record
Southern Water Services Limited: participants and roles
Owners, controllers, holding and finance companies, directors, contractors, regulators and prosecutors connected with Southern Water Services Limited, with the period and source of each role.
Solid line: documented. Amber dashed: reported. Grey dotted: hypothesis. One arrow: the relationship as stated; two arrows: reciprocal; no arrow: symmetric. A path between two parties does not transfer an allegation from one to the other.
every party and relationship in full, as text ↓
Information markers
- A1 · Convicted in Environment Agency pollution prosecutions, 2013-2026 (fines include £90 million in 2021 and £7.1 million in 2026) — Southern Water Services Limited
- A2 · Prosecuted from July 2026 over alleged manipulation of wastewater flow-monitoring tests (2013-2017 conduct); pending — Southern Water Services Limited
- A3 · Further Environment Agency prosecutions pending at the cutoff (River Test guilty pleas awaiting sentence; other Kent and Hampshire cases) — Southern Water Services Limited
- A4 · Drinking Water Inspectorate prosecutions (guilty pleas in 2017, 2018 and 2022) and a 2023 caution — Southern Water Services Limited
- A5 · Ofwat enforcement decision of October 2019: £126 million penalty and rebate package and formal undertakings — Southern Water Services Limited
- A6 · Enforceable undertakings accepted by Ofwat in February 2026 for wastewater treatment breaches; no financial penalty — Southern Water Services Limited
- A7 · Triggered Ofwat's prohibition of directors' performance-related pay for 2024/25 and 2025/26 — Southern Water Services Limited
- A8 · Environment Agency investigation of the October 2025 bio-bead release at Eastbourne; active, no charge recorded — Southern Water Services Limited
- A9 · Going-concern material uncertainty in the 2024-25 accounts and 2025 interim report; not repeated in 2025-26 after new equity — Southern Water Services Limited
- A10 · Press report (July 2026) of errors in the 2025-26 annual report, which the company accepted and corrected — Southern Water Services Limited
- A13 · Rescue share issue of about £1.3 billion found no takers (April 2025); the group passed to a new owner in July 2025 — Greensands Holdings Limited
- A12 · In administration from 4 July 2025, with a pre-packaged sale of its subsidiaries; administration ended in February 2026 — Greensands (UK) Limited
- A11 · Charged in 2026 with conspiracy to defraud over flow-monitoring tests; denies wrongdoing; case sent to Maidstone Crown Court — Matthew Reginald Wright
Markers apply only to the named participant. They do not transfer allegations to connected parties.
Participants 263
Subject
- Southern Water Services Limited also known as Southern Water · SWS
Leadership
- Sandra Faye Redding also known as Sandra Redding
- Malcolm Charles Cooper also known as Malcolm Cooper
- Neil Robert Vint Corrigall also known as Neil Corrigall
- Andrew Oswell Bede Davies also known as Andrew Davies
- Christèle Delbé
- Lawrence Karl Gosden also known as Lawrence Gosden
- Stephen Glynn Hurrell also known as Steve Hurrell
- Kerensa Jane Jennings also known as Kerensa Jennings
- Stuart Neil Ledger also known as Stuart Ledger
- Neil Craig McArthur also known as Neil McArthur
- William David George Price also known as Will Price
- Kevin Gregory Hall
- Graham John Heyes
- Richard Denley John Manning also known as Richard Manning
- Graham Dudley Nicholson
- Joanne Statton
- Nadim Ahmad
- David William Alexander
- Peter Szymon Antolik
- Robert David Armstrong
- Martin Wayne Baggs
- Jean Claude Banon
- Wendy Jacqueline Barnes
- Cheryl Campbell Black
- Sebastianus Antonius Theodorus Boelen
- Rosemary Jane Cecilia Boot
- Martin Bradley
- Michael Carmedy
- Christopher Baker Chapman
- Richard Frank Clayton
- Raymond Francis Thomas Collett
- William John Wesley Courtney
- Rory Malcolm Cullinan
- William Cutting
- Francois Darley
- Leslie William Dawson
- Paul de Rosen
- Barrie Walter Delacour
- Stuart Derwent
- Anthony James Fegan
- Ian Raymond Francis
- Steven Richard Fraser also known as Steve Fraser
- Mary Katherine Fuller
- Andrew Emerson Gilbert
- David Golden
- Howard Charles Goodbourn
- Gillian Lesley Guy
- Lisa Harrington
- John Clement Harris
- Bruce Alexander Ogston Hewett
- Colin William Hood
- Eric John Hutchinson
- Robert Archie Jennings
- Michael John Kinski
- William Anthony Lambe
- Keith Geddes Lough also known as Keith Lough
- Simon Michael Peter MacDonagh
- Joseph Bernard Mangion
- Steven Marshall
- Mark William Mathieson
- Ian James McAulay
- Kevin McCullough
- Ronnie Edward Mercer
- Francis Neil Midmer
- Paul John Moy
- Richard Anthony Nelson
- John James O'Brien
- Phillip William Peters
- Michael Colin Putnam
- Cyril Roger Lacan
- Graham Hillier Setterfield
- Michael Paul Sheffield
- Alastair Lumsden Smith
- Bronte Louise Somes
- David John Stainthorpe
- Sara Sulaiman
- Philip Swift
- William Tame
- Robert Peter Thian
- Surinder Singh Toor
- Keith Tozzi
- Andrew John Truscott
- Mark Alan Walters
- Michael William Welton
- John Donald Black Workman
- Matthew Reginald Wright also known as Matthew Wright
- Jaron Yuen
- Jason Demetrious Zibarras
Group companies
- SWS Holdings Limited
- SWS Group Holdings Limited
- Southern Water Services Group Limited
- Southern Water Investments Limited
- Southern Water Capital Limited
- Greensands Holdings Limited also known as GHL
- Greensands Finance Limited
- Greensands Investments Limited
- Greensands Finance Holdings Limited
- Greensands Senior Finance Limited
- Greensands Junior Finance Limited
- Sandstone Bidco Limited
- Greensands (UK) Limited
- Sandstone Midco Limited
- SW (Finance) I PLC
- Sandstone Water Holdings Limited
- Greensands Financing Plc
- Southern Water (Greensands) Financing plc
- SW (Finance) II Limited
- Southern Water Limited
- Southern Water (NR) Holdings Limited
- Southern Water (NR) Limited
- Greensands Europe Limited
- Southern Water Industries Limited
- Southern Water Executive Pension Scheme Trustees Limited
Counterparties
- Macquarie Super Core Infrastructure Fund SCSp also known as MSCIF
- Wight Ventures S.à r.l.
- MSCIF Luxembourg GP S.à r.l.
- Macquarie Asset Management Europe S.à r.l. also known as MAMES
- Macquarie Infrastructure and Real Assets (Europe) Limited
- MSCIF Luxembourg C Holdings S.à r.l.
- Macquarie Asset Management also known as MAM
- Environment Agency
- Capita
- Deloitte LLP
- MSCIF Wight Bidco Limited
- MSCIF Wight Midco Limited
- Asterion Industrial Partners SGEIC, S.A. also known as Asterion Industrial Partners · Asterion
- Asterion Industrial Infra Fund III, FCR
- Alter Domus (UK) Limited
- MSCIF Sandstone Ventures S.à r.l.
- Macquarie Group Limited
- MSCIF Sandstone Holdings S.à r.l. also known as Mscif SC 6 S.à r.l.
- Deutsche Trustee Company Limited
- HSBC Bank Plc
- Aldrovandi de Inversiones y Servicios S.L. also known as Inversiones Aldrovandi SL
- Warrington Investments, S.L.
- Selfina Inversiones, S.L.
- MIRA Core Gas Limited
- FRP Advisory Trading Limited
- Costain Limited
- MWH Treatment Limited
- Kier Integrated Services Limited
- Galliford Try Construction Limited
- Morrison Water Services Limited
- Bank of America Europe Designated Activity Company
- Mott MacDonald Limited
- AECOM Limited
- Ove Arup & Partners Limited
- KPMG LLP
- Turner and Townsend Project Management Limited
- Stantec UK Limited
- Binnies UK Limited
- WSP UK Limited
- Ofwat
- Portsmouth Water Limited
- Marques Bidco SL
- Demeter Bidco SL
- Fivebioenergy SL
- Kohlberg Kravis Roberts (España) Asesores SL
- Acciona Energía Internacional SA
- Centaurus Bidco SL
- Deloitte Auditores SL
- Terraluce Real Estate SL
- Trident Bidco SL
- Macquarie Asset Management UK Holdings No.1 Limited
- Macquarie Group Holdings (UK) No.2 Limited
Historical
- JP Morgan Asset Management
- UBS Asset Management
- Hermes Infrastructure
- AMF Pensionförsäkring AB
- MR Ergo
- Retail Employees Superannuation Pty Limited
- The Royal Bank of Scotland PLC
- Scottish Power plc
- First Aqua Limited
- Aspen 4 Limited
- IIF Int'l SW UK ParentCo Ltd
- Whitehelm Capital
- Challenger Infrastructure Fund
Other
- Adrian Peter Page also known as Adrian Page
- Catherine Isabelle Harber also known as Catherine Harber
- Pooja Hitesh Shah
- Richard Greenleaf
- Susana Durante Teixeira Gomes Leith-Smith also known as Susana Leith-Smith
- Charles G. H. Roemers also known as Charles Ghislain Hubert Roemers
- Viktor Schuh
- Mark Roland Phillips
- Grove Court Properties (Holdings) Limited
- Grove Court Properties (Beaconsfield) Limited
- Morhomes Plc
- National Gas Transmission Plc
- Water UK
- Group of Humans Limited
- Alan James Fort also known as Alan Fort
- Cadent Gas Limited
- Cadent Finance Plc
- Quadgas Finance Plc
- NGET/SPT Upgrades Limited
- Camell Limited
- John William Lee
- Philip Hogan
- Affinity Water Limited
- Affinity Water Holdings Limited
- Thames Water Utilities Finance Plc
- Rett UK
- Landlord Tap Limited
- Cindyrella Amistadi
- Jesús Olmos Clavijo
- Winnie Wutte also known as Winniefried Wutte
- Guido Mitrani also known as Guido Lucio Mitrani
- Geoffrey Paul Rowley
- Anthony John Wright
- Scorpion Properties Ltd
- Gerrards House Limited
- Merlin Properties Limited
- Custodian Property Income REIT PLC
- Local Pensions Partnership Investments Ltd
- Morgan Sindall Group Plc
- CLS Holdings Plc
- ACT (Administration) Limited
- Inglenook Global Ltd
- Centre for the Acceleration of Social Technology
- Inspiring Digital Enterprise Award C.I.C.
- Elysium House Ltd
- Orsted (UK) Limited
- United Utilities Water Limited
- Kier Group plc
- Chemring Group plc
- Wates Group
- EP Infrastructure
- Czech Grid Holding
- Highview Power
- Dragon Oil
- EKFB joint venture
- South Staffordshire Limited
- South Staffordshire Water Plc
- Energy Assets Group Holdings Limited
- Hunting PLC
- Rockhopper Exploration PLC
- Capricorn Energy PLC
- Pennon Group Plc
- Viridor Limited
- Curium Finance Limited
- TD Bidco Limited
- Pacific (BC) Topco Limited
- MK Holdco Limited
- Midsummer Place Limited
- MEIF 6 Range Bidco Limited
- MEIF 6 Range Holdings Limited
- MEIF 6 Range Investments Limited
- Bazalgette Tunnel Limited
- Network Rail Limited
- Skanska UK Plc
- Skanska Construction Holdings UK Limited
- Clyde Moray Ltd
- UBS Infrastructure Fund GP UK Ltd
- Phildrew Nominees Limited
- Nadara Limited
- Ventient Energy Limited
- SDCL Efficiency Income Trust Plc
- Urban&Civic Plc
- Chapter Zero Limited
- Triple Point Energy Transition Plc
Relationship register 432
- Scottish Power plc to Southern Water Services LimitedOwner of the Southern Water group through Southern Water plcdocumented · 1996 – 23 April 2002 · historical
- Scottish Power plc to Aspen 4 LimitedSeller of the entire share capital of Aspen 4 Limited, the holding company of Southern Water plc, to First Aqua Limiteddocumented · Agreement 8 March 2002; completed 23 April 2002 · historical
- First Aqua Limited to Aspen 4 LimitedBuyer of the entire share capital of Aspen 4 Limited (consideration of £2.05 billion before expenses, including debt)documented · Completed 23 April 2002 · current or historical not established
- First Aqua Limited to Southern Water Services LimitedBuyer of the Southern Water business from ScottishPower; a company formed for the acquisitiondocumented · From 23 April 2002 · current or historical not established
- Aspen 4 Limited to Southern Water Services LimitedHolding company of Southern Water plc, the group to which Southern Water Services Limited belongeddocumented · Sold with the group on 23 April 2002 · current or historical not established
- The Royal Bank of Scotland PLC to Southern Water Services LimitedControlling shareholder: about 49% of the company and nearly 94% of the voting rights, according to a press reportreported · 2003 – October 2007 (press report) · historical
- The Royal Bank of Scotland PLC to Southern Water Services LimitedOwner of Southern Water Capital Limited, then Southern Water's ultimate parent, until it sold it to the Greensands groupdocumented · Until the acquisition completed on 15 October 2007 · historical
- Challenger Infrastructure Fund to Southern Water Services LimitedInvestor of £300 million for a 27% equity interest in the consortium that bought Southern Water Capital, according to a press reportreported · October 2007 (press report) · current or historical not established
- JP Morgan Asset Management to Southern Water Services LimitedAdviser of a fund that was to invest 32% in the 2007 consortium (JPMorgan Asset Management's infrastructure investment group), according to a press reportreported · October 2007 (press report) · current or historical not established
- UBS Asset Management to Southern Water Services LimitedInvestor with 18% in the 2007 consortium (named "UBS" in a press report)reported · October 2007 (press report) · current or historical not established
- Hermes Infrastructure to Southern Water Services LimitedInvestor with 4% in the 2007 consortium (named "Hermes Pension Management" in a press report)reported · October 2007 (press report) · current or historical not established
- Southern Water Capital Limited to Southern Water Services LimitedFormer holding company of the Southern Water group (established in the 2002 sale; ultimate parent until 2007); holds preference shares in Southern Water Servicesdocumented · From 2002 · current or historical not established
- Greensands Holdings Limited to Southern Water Services LimitedUltimate parent company of Southern Water through intermediate holding companiesdocumented · 15 October 2007 – 4 July 2025 · historical
- Greensands Holdings Limited to Southern Water Capital LimitedUltimate parent after Greensands Investments Limited acquired Southern Water Capital Limiteddocumented · From 15 October 2007 · current or historical not established
- Greensands Holdings Limited to Greensands Investments LimitedIndirect parent (Greensands Investments is a subsidiary of Greensands Europe Limited)documented · From October 2007 · current or historical not established
- Greensands Holdings Limited to Greensands Europe LimitedSole shareholder (100% of the share capital)documented · Since incorporation in September 2007; stated at 31 March 2021 · current or historical not established
- Greensands Europe Limited to Greensands (UK) LimitedSole shareholder (100% of 2,000,000 ordinary shares)documented · As stated in the administrators' proposals of July 2025 · current or historical not established
- Greensands (UK) Limited to Southern Water Services LimitedIntermediate parent company of Southern Waterdocumented · Until 4 July 2025 · historical
- Greensands (UK) Limited to Southern Water Services LimitedOwed £343 to Southern Water Services Limited, an unsecured intra-group creditordocumented · As listed in the administrators' proposals (July 2025) · historical
- JP Morgan Asset Management to Greensands Holdings LimitedManager of funds holding 15% of the group (September 2021); a fund it managed appointed three of the five directors of Greensands Holdings in 2020-21documented · Snapshots of 2020-21 and September 2021 · current or historical not established
- IIF Int'l SW UK ParentCo Ltd to Greensands Holdings LimitedShareholder; a constituent entity of the Infrastructure Investments Fund advised by J.P. Morgan Asset Managementdocumented · At 31 March 2021 · current or historical not established
- JP Morgan Asset Management to IIF Int'l SW UK ParentCo LtdAdviser of the Infrastructure Investments Fund, of which IIF Int'l SW UK ParentCo Ltd is a constituent entitydocumented · At 31 March 2021 · current or historical not established
- UBS Asset Management to Greensands Holdings LimitedAdviser or manager of shareholdings in Greensands Holdings (8% in September 2021; part of a minority of about 13% at 31 March 2025); its funds appointed one director in 2020-21documented · Snapshots from 2020-21 to 31 March 2025 · current or historical not established
- Hermes Infrastructure to Greensands Holdings LimitedManager of Hermes Infrastructure funds holding shares in Greensands Holdings (8% in September 2021; part of a minority of about 13% at 31 March 2025); its funds appointed one director in 2020-21documented · Snapshots from 2020-21 to 31 March 2025 · current or historical not established
- Whitehelm Capital to Greensands Holdings LimitedManager of a shareholding held for the Motor Trades Association of Australia and Prime superannuation fundsdocumented · At 31 March 2021 · current or historical not established
- Greensands Europe Limited to Phildrew Nominees LimitedIssuer of shareholder Eurobonds held by Phildrew Nominees Ltd for a UBS fund (£49.6 million at 31 March 2021)documented · At 31 March 2021; Eurobonds exchanged for shares on 11 June 2021 · historical
- MSCIF Wight Bidco Limited to Greensands Holdings LimitedMajority shareholder: acquired 62.24% on 8 September 2021 for Macquarie-managed fundsdocumented · From 8 September 2021; still the majority shareholder at 31 March 2025 · current or historical not established
- MSCIF Wight Bidco Limited to Southern Water Services LimitedIndirect majority owner as majority shareholder of Greensands Holdings, then Southern Water's ultimate parentdocumented · At 31 March 2025 (snapshot); ended with the restructuring of 4 July 2025 · historical
- Macquarie Super Core Infrastructure Fund SCSp to Greensands Holdings LimitedIndirect majority owner of the group: Ofwat's ownership table gives MSCIF 62%documented · September 2021 (snapshot) · current or historical not established
- Macquarie Super Core Infrastructure Fund SCSp to Southern Water Services LimitedUltimate Controller under the licence (acting by its general partner); entity with legal control over Greensands and therefore Southern Waterdocumented · From September 2021; identified by Ofwat in November 2022 and confirmed in September 2026 · current at the evidence cutoff
- MSCIF Luxembourg GP S.à r.l. to Southern Water Services LimitedIdentified with MSCIF as Ultimate Controller under the licence, MSCIF acting by this general partnerdocumented · Ofwat conclusions of November 2022 · current or historical not established
- Macquarie Asset Management Europe S.à r.l. to Southern Water Services LimitedUltimate Controller under the licence; manager responsible for managing MSCIF's investmentdocumented · Identified in November 2022; confirmed in September 2026 · current at the evidence cutoff
- MSCIF Luxembourg GP S.à r.l. to Macquarie Super Core Infrastructure Fund SCSpGeneral partnerdocumented · Stated by Ofwat in November 2022; shown by a business-registry aggregator in October 2026 · current or historical not established
- Macquarie Super Core Infrastructure Fund SCSp to Wight Ventures S.à r.l.Retained full control after selling part of its indirect shareholding to co-investorsdocumented · From November 2021 · current or historical not established
- AMF Pensionförsäkring AB to Wight Ventures S.à r.l.Co-investor: funds managed by AMF Pensionförsäkring AB hold an 11.45% interestdocumented · From November 2021 · current or historical not established
- MR Ergo to Wight Ventures S.à r.l.Co-investor: 6.97% interestdocumented · From November 2021 · current or historical not established
- Retail Employees Superannuation Pty Limited to Wight Ventures S.à r.l.Co-investor as trustee for the Retail Employees Superannuation Trust: 13.28% interestdocumented · From November 2021 · current or historical not established
- Macquarie Asset Management to Greensands Holdings LimitedUltimate controlling party through MSCIF Wight Bidco Limited, the majority shareholderdocumented · From 8 September 2021 · current or historical not established
- Macquarie Asset Management to Southern Water Services LimitedManager of the funds that are the majority investors in the group; they invested over £1.6 billion in 2021-2023 and £900 million in 2025-26documented · From September 2021 · current at the evidence cutoff
- Macquarie Asset Management to Sandstone Bidco LimitedEstablished the company; funds it manages own the majority of itdocumented · From 29 May 2025 · current at the evidence cutoff
- Macquarie Infrastructure and Real Assets (Europe) Limited to MSCIF Wight Bidco LimitedRegistrable relevant legal entity with significant influence or control, without a shareholdingdocumented · From 22 June 2021 (date notified); current on the register retrieved in October 2026 · current at the evidence cutoff
- Macquarie Infrastructure and Real Assets (Europe) Limited to MSCIF Wight Midco LimitedRegistrable relevant legal entity with significant influence or control, without a shareholdingdocumented · From 21 June 2021 (date notified); current on the register retrieved in October 2026 · current at the evidence cutoff
- Macquarie Infrastructure and Real Assets (Europe) Limited to Sandstone Bidco LimitedRegistrable relevant legal entity with significant influence or control, without a shareholdingdocumented · From 29 May 2025 (date notified); current on the register retrieved in October 2026 · current at the evidence cutoff
- Macquarie Infrastructure and Real Assets (Europe) Limited to Sandstone Midco LimitedRegistrable relevant legal entity with significant influence or controldocumented · From 29 May 2025 (date notified); current on the register retrieved in October 2026 · current at the evidence cutoff
- Macquarie Infrastructure and Real Assets (Europe) Limited to Sandstone Water Holdings LimitedRegistrable relevant legal entity with significant influence or control, without a shareholdingdocumented · From 29 May 2025 (date notified); current on the register retrieved in October 2026 · current at the evidence cutoff
- Macquarie Group Limited to Macquarie Super Core Infrastructure Fund SCSpListed among the controlled bodies corporate of Macquarie Group Limited in its Form 605 noticedocumented · As at 7 November 2017 · current or historical not established
- Macquarie Group Limited to MSCIF Luxembourg GP S.à r.l.Listed among the controlled bodies corporate of Macquarie Group Limited in its Form 605 noticedocumented · As at 7 November 2017 · current or historical not established
- Macquarie Group Limited to MSCIF Luxembourg C Holdings S.à r.l.Listed among the controlled bodies corporate of Macquarie Group Limited in its Form 605 noticedocumented · As at 7 November 2017 · current or historical not established
- MSCIF Luxembourg C Holdings S.à r.l. to MSCIF Sandstone Holdings S.à r.l.Shareholder at registration, according to a business-registry aggregatordocumented · From 17 March 2022 · current or historical not established
- MSCIF Sandstone Holdings S.à r.l. to MSCIF Sandstone Ventures S.à r.l.Shareholder, as read from an aggregator: a registry publication of 10 April 2026 concerns its shareholding in MSCIF Sandstone Ventures and an earlier link between them was labelled 62.2%; direction and current size not confirmedhypothesis · Publication of 10 April 2026 · current or historical not established
- Sandstone Bidco Limited to Southern Water Services LimitedUltimate indirect UK holding company of Southern Water (through Greensands Junior Finance Limited)documented · From 4 July 2025 · current at the evidence cutoff
- Sandstone Bidco Limited to Southern Water Services LimitedSponsor and equity provider: £655 million equity commitment letter (8 July 2025); £900 million injected in November 2025 and March 2026; further £300 million committed on 22 June 2026documented · 8 July 2025 – drawdown due by 31 March 2027 · current at the evidence cutoff
- MSCIF Luxembourg C Holdings S.à r.l. to Southern Water Services LimitedIndirect owner of 100% of Sandstone Bidco Limited, according to the July 2025 prospectus supplementdocumented · At 30 July 2025 · current or historical not established
- MSCIF Luxembourg C Holdings S.à r.l. to Southern Water Services LimitedParty to the SWS lock-up agreement as "Investor"documented · Signed 8 July 2025 · current or historical not established
- Greensands (UK) Limited to Sandstone Bidco LimitedSeller, while in administration, of Greensands Junior Finance Limited and Southern Water (Greensands) Financing plc for £1 each in a pre-packaged saledocumented · 4 July 2025 · historical
- MSCIF Sandstone Ventures S.à r.l. to Sandstone Bidco LimitedIncorporated the companydocumented · 29 May 2025 · historical
- MSCIF Sandstone Ventures S.à r.l. to Sandstone Water Holdings LimitedHolder of all 81,376 ordinary sharesdocumented · At 28 May 2026 (confirmation statement) · current or historical not established
- Greensands Junior Finance Limited to Southern Water Services LimitedTop company of the group and indirect parent of Southern Water; parent of the only group consolidating its accountsdocumented · From 4 July 2025 · current at the evidence cutoff
- Greensands Junior Finance Limited to SW (Finance) I PLCParent of the only group that consolidates SW (Finance) I PLCdocumented · As stated in the 2025-26 accounts · current at the evidence cutoff
- Sandstone Bidco Limited to SW (Finance) I PLCUltimate indirect UK holding companydocumented · From 4 July 2025 · current at the evidence cutoff
- FRP Advisory Trading Limited to Greensands (UK) LimitedFirm of the joint administrators appointed to the companydocumented · Appointed 4 July 2025 · current or historical not established
- Geoffrey Paul Rowley to Greensands (UK) LimitedJoint administrator (insolvency practitioner, FRP Advisory)documented · Appointed 4 July 2025 · current or historical not established
- Anthony John Wright to Greensands (UK) LimitedJoint administrator (insolvency practitioner, FRP Advisory)documented · Appointed 4 July 2025 · current or historical not established
- Alan James Fort to Greensands (UK) LimitedDirectordocumented · From 14 April 2025; a director in July 2025 according to the administrators' proposals · current or historical not established
- Richard Denley John Manning to Greensands (UK) LimitedDirectordocumented · From 25 October 2023; a director in July 2025 according to the administrators' proposals · current or historical not established
- William David George Price to Greensands (UK) LimitedDirectordocumented · Until 14 April 2025 (appointment date not in the retained filing history) · historical
- SWS Holdings Limited and Greensands Financing PlcScheme companies of two interdependent schemes of arrangement sanctioned on 9 October 2025 ([2025] EWHC 2690 (Ch))documented · Convened 2 September 2025; sanctioned 9 October 2025 · historical
- Greensands Financing Plc to Greensands Finance LimitedMidCo scheme company whose scheme restated the facility under which Greensands Finance Limited is the borrowerdocumented · 2025 (convening judgment of 2 September 2025) · historical
- Bank of America Europe Designated Activity Company to Greensands Financing PlcNew lender under the MidCo facility after buying the original lender's interest; supported the MidCo schemedocumented · From before the sanction hearing of 9 October 2025 · current or historical not established
- SWS Holdings Limited to Southern Water Services LimitedImmediate parent company. Registrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 6 April 2016 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- SWS Holdings Limited to Southern Water Services LimitedSecurity provider for the financing group's debt: its share capital is charged as security for the borrowings of Southern Water Services, and it is a party to the guarantee and security agreement securing SW (Finance) I PLC's borrowingsdocumented · Stated in the accounts for 2021-22 and 2025-26 · current at the evidence cutoff
- SWS Group Holdings Limited to Southern Water Services LimitedParty to the guarantee and security agreement securing SW (Finance) I PLC's borrowings; lenders to the financing group are secured by a charge over its share capitaldocumented · Stated in the accounts for 2020-21 and 2025-26 · current at the evidence cutoff
- Southern Water Services Limited to SW (Finance) I PLCImmediate parent company. Registrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 13 October 2021 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Southern Water Services Limited to SW (Finance) I PLCGuarantor of the £6,000,000,000 guaranteed bond programme of SW (Finance) I PLC and security provider under the guarantee and security agreement (to the extent permitted by the Water Industry Act 1991 and its licence)documented · Stated in the July 2025 prospectus supplement and the 2025-26 accounts · current at the evidence cutoff
- SW (Finance) I PLC to Southern Water Services LimitedLender of the proceeds of its bonds and other debt to Southern Water Services on the same terms (£6,941.0 million at 31 March 2026)documented · From 2021; balance at 31 March 2026 · current at the evidence cutoff
- Southern Water Services Limited to SW (Finance) II LimitedParent company. Registrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 13 October 2021 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- SW (Finance) II Limited to Southern Water Services LimitedParty, with Southern Water Services, to the guarantee and security agreement securing SW (Finance) I PLC's borrowingsdocumented · Stated in the 2025-26 accounts · current at the evidence cutoff
- SW (Finance) II Limited to SW (Finance) I PLCLender of two index-linked 'Artesian' loans (£473.5 million and £421.9 million at 31 March 2026)documented · At 31 March 2026 · current at the evidence cutoff
- HSBC Bank Plc to SW (Finance) I PLCBankers to the companydocumented · Named in the 2025-26 accounts · current at the evidence cutoff
- Deutsche Trustee Company Limited to Southern Water Services LimitedSecurity trustee for the secured creditors under the 2003 security agreement (fixed and floating charges) and security trust and intercreditor deed, and holder of a 2022 fixed chargedocumented · From 23 July 2003 (charges listed as outstanding in October 2026) · current at the evidence cutoff
- The Royal Bank of Scotland PLC to Southern Water Services LimitedTrustee for the secured parties under a debenture (fixed and floating charges)documented · 28 June 2002 – 3 September 2003 (satisfied) · historical
- Southern Water Services Limited to Southern Water Capital LimitedPayer of £17.5 million to the preference-share holder (partial redemption of £5.3 million and £12.3 million of accrued preference interest)documented · Approved by the board on 22 July 2022 · historical
- Southern Water Services Limited to Southern Water (Greensands) Financing plcSecurity provider, under a group security agreement over its property (to the extent permitted by the Water Industry Act 1991 and its licence), for the facilities of Southern Water (Greensands) Financing plcdocumented · At 31 March 2022 · historical
- Deloitte LLP to Southern Water Services LimitedStatutory auditordocumented · Audited the accounts for 2022-23 to 2025-26; to be reappointed for 2026-27 · current at the evidence cutoff
- Deloitte LLP to SW (Finance) I PLCAuditordocumented · Appointed 10 June 2022 for the year ending 31 March 2023 and later periods · current at the evidence cutoff
- Asterion Industrial Partners SGEIC, S.A. to Southern Water Services LimitedManager of the fund that took a 20% minority shareholding in the Southern Water groupdocumented · Announced 22 June 2026; completed August 2026 · current at the evidence cutoff
- Asterion Industrial Partners SGEIC, S.A. to Southern Water Services LimitedUltimate Controller under the licence (effective control over the fund and a right to nominate board representation)documented · Undertakings dated 12 August 2026; identified in Ofwat's consultation of September 2026 (closing 30 October 2026) · current at the evidence cutoff
- Asterion Industrial Partners SGEIC, S.A. to Southern Water Services LimitedAcquiring joint control of Southern Water with Macquarie Group Limited, as notified in EU merger case M.12488documented · Notified 22 June 2026; cleared 20 July 2026 · current at the evidence cutoff
- Asterion Industrial Infra Fund III, FCR to Southern Water Services LimitedLegal holder of the 20% minority investment in the groupdocumented · From August 2026 · current at the evidence cutoff
- Asterion Industrial Partners SGEIC, S.A. to Asterion Industrial Infra Fund III, FCRManagement company with effective control over the fund, without owning itdocumented · As described by Ofwat in September 2026 · current at the evidence cutoff
- Asterion Industrial Partners SGEIC, S.A. to Sandstone Water Holdings LimitedInvestor with a right, under a shareholders' agreement, to nominate non-executive directors to Southern Water's board; Sandstone Water Holdings is the last UK holding company through which funds are investeddocumented · As described by Ofwat in September 2026 · current at the evidence cutoff
- Sandstone Water Holdings Limited to Southern Water Services LimitedUltimate Controller under the licence; last UK holding company through which funds are invested in Southern Waterdocumented · Stated in Ofwat's consultation of September 2026 · current at the evidence cutoff
- Macquarie Group Limited to Southern Water Services LimitedControlling undertaking before the transaction; acquiring joint control with Asterion in EU merger case M.12488documented · Notified 22 June 2026; cleared 20 July 2026 · current at the evidence cutoff
- Macquarie Group Limited to MSCIF Sandstone Ventures S.à r.l.Controlling undertaking, according to the European Commission noticedocumented · July 2026 notice · current or historical not established
- MSCIF Sandstone Ventures S.à r.l. to Southern Water Services LimitedUndertaking concerned on the Macquarie side in EU merger case M.12488documented · Notified 22 June 2026; cleared 20 July 2026 · historical
- Aldrovandi de Inversiones y Servicios S.L. to Asterion Industrial Partners SGEIC, S.A.48.40% shareholder; the CNMV register lists the holder as "Androvandi de Inversiones y Servicios S.L."hypothesis · Undated holding on the CNMV register retrieved in October 2026 · current or historical not established
- Warrington Investments, S.L. to Asterion Industrial Partners SGEIC, S.A.23.30% shareholder (CNMV register of holdings of 5% or more)documented · Undated holding on the CNMV register retrieved in October 2026 · current at the evidence cutoff
- Selfina Inversiones, S.L. to Asterion Industrial Partners SGEIC, S.A.23.30% shareholder (CNMV register of holdings of 5% or more)documented · Undated holding on the CNMV register retrieved in October 2026 · current at the evidence cutoff
- Jesús Olmos Clavijo to Asterion Industrial Partners SGEIC, S.A.Chairman (presidente), director and consejero delegado (managing director); described by Asterion as founding partner and CEOdocumented · From 20 September 2018 (CNMV; BORME registration 17 August 2018); listed as current in the CNMV register (data 14 September 2026) · current at the evidence cutoff
- Winnie Wutte to Asterion Industrial Partners SGEIC, S.A.Director (consejero); described by Asterion as a founding partnerdocumented · From 20 September 2018 (CNMV; BORME registration 17 August 2018); listed as current in the CNMV register · current at the evidence cutoff
- Guido Mitrani to Asterion Industrial Partners SGEIC, S.A.Director (consejero); described by Asterion as a founding partnerdocumented · From 8 April 2019 (CNMV; BORME registration 23 May 2019); listed as current in the CNMV register · current at the evidence cutoff
- Deloitte Auditores SL to Asterion Industrial Partners SGEIC, S.A.Auditor (re-election registered on 1 October 2024)documented · Registered 1 October 2024 · current or historical not established
- Adrian Peter Page to Asterion Industrial Partners SGEIC, S.A.Member of Asterion's Industrial Advisory Board, according to Asterion's websitedocumented · Website retrieved in October 2026 · current or historical not established
- Winnie Wutte to Warrington Investments, S.L.Sole member (socio único) at incorporationdocumented · From 10 July 2020 (BORME); no later change in the aggregators' lists of published acts · current or historical not established
- Winnie Wutte to Warrington Investments, S.L.Sole administrator (10 July 2020 – 26 February 2021), then one of two joint administratorsdocumented · From 10 July 2020; joint administrator from 2 March 2022 · current or historical not established
- Guido Mitrani to Selfina Inversiones, S.L.Sole member (socio único) at incorporationdocumented · From 10 July 2020 (BORME); no later change in the acts listed for him · current or historical not established
- Guido Mitrani to Selfina Inversiones, S.L.Sole administrator (administrador único)documented · Appointed at incorporation, registered 10 July 2020 · current or historical not established
- Selfina Inversiones, S.L. to Terraluce Real Estate SLSole member (socio único) at incorporationdocumented · Registered 19 November 2024 · current or historical not established
- Guido Mitrani to Terraluce Real Estate SLSole administrator (administrador único)documented · From 19 November 2024; listed as current by an aggregator in October 2026 · current or historical not established
- Guido Mitrani to Trident Bidco SLDirector (consejero)documented · From 11 August 2023; listed as current by an aggregator in October 2026 · current or historical not established
- Jesús Olmos Clavijo to Aldrovandi de Inversiones y Servicios S.L.Sole administrator (administrador único)documented · Registered 30 April 2018; joint administrator 27 April – 15 June 2020; sole administrator again from 15 June 2020 · current or historical not established
- Jesús Olmos Clavijo to Fivebioenergy SLDirector and chairman (consejero, presidente)documented · 8 February 2024 – 20 March 2026 · historical
- Winnie Wutte to Marques Bidco SLDirector (consejero)documented · Registered 10 July 2020; until 8 June 2023 according to an aggregator · historical
- Winnie Wutte to Centaurus Bidco SLDirector (consejero)documented · 2 July 2020 – 18 February 2025 (aggregator) · historical
- Warrington Investments, S.L. and Aldrovandi de Inversiones y Servicios S.L.Registered offices at the same Madrid address (C/ Príncipe de Vergara 33) after moves registered on 15 October 2025documented · From October 2025 · current or historical not established
- Environment Agency to Southern Water Services LimitedEnvironmental regulator: issues and enforces environmental permits and inspects Southern Water sitesdocumented · Inspections reported for 2025-26 · current at the evidence cutoff
- Environment Agency to Southern Water Services LimitedProsecutor of the Margate discharge case: guilty plea on 2 July 2013; £200,000 fine on 23 August 2013; appeal dismissed on 23 January 2014documented · 2013 – 2014 · historical
- Environment Agency to Southern Water Services LimitedProsecutor of the company and five employees for obstructing Agency officers in July 2016; the company was acquitteddocumented · 2016 – 2019 (appeal decided 29 January 2019) · historical
- Environment Agency to Southern Water Services LimitedProsecutor: guilty pleas to 51 offences (2010-2015); record £90 million fine on 9 July 2021documented · Sentenced 9 July 2021 · historical
- Environment Agency to Southern Water Services LimitedPenalty of £330,000 for pollution of a lake near Southampton, as reported by the Agencydocumented · About 2024 (three years after 2021, per the Agency) · historical
- Environment Agency to Southern Water Services LimitedProsecutor of 13 Margate and Broadstairs offences (2019-2021): guilty pleas on 22 April 2025; fines of £7,127,083 on 17 July 2026documented · 2025 – 2026 (fine payable by 16 July 2027) · historical
- Environment Agency to Southern Water Services LimitedProsecutor of five Faversham and Whitstable offences (2019-2021): guilty pleas on 7 April 2026; fined £2.4 million in September 2026documented · 2026 · historical
- Environment Agency to Southern Water Services LimitedProsecutor of River Test (Fullerton) permit offences of 13 March 2023: guilty pleas on 14 July 2026; sentence pendingdocumented · From 2026; pending at the October 2026 cutoff · current at the evidence cutoff
- Environment Agency to Southern Water Services LimitedProsecutor of environmental-permit charges against the company linked to the alleged manipulation of flow self-monitoring (2012-2017); charges announced 22 July 2026; no plea recordeddocumented · Investigation of 2013-2017 sampling; proceedings from 22 July 2026, pending · current at the evidence cutoff
- Environment Agency to Southern Water Services LimitedProsecutor in further pending cases (Herne Bay, near Canterbury, near Andover; other Kent 2019-2021 and Hampshire 2023 incidents)documented · Announced July and September 2026; pending · current at the evidence cutoff
- Environment Agency to Southern Water Services LimitedCriminal investigation of the October 2025 Eastbourne bio-beads release (no charge recorded)documented · Active in December 2025 · current or historical not established
- Environment Agency to Matthew Reginald WrightProsecutor: charged with conspiracy to defraud the Environment Agency and Ofwat (alleged 2012-2017); he denies wrongdoing; case sent to Maidstone Crown Courtdocumented · Summons issued 24 September 2025; pending at the October 2026 cutoff · current at the evidence cutoff
- Ofwat to Southern Water Services LimitedEconomic regulator of the company's licence: price controls, financial resilience monitoring, change-of-control reviews and the performance-related pay ruledocumented · Throughout the period covered · current at the evidence cutoff
- Ofwat to Southern Water Services LimitedEnforcement investigation (from June 2017): £126 million penalty and rebate package and section 19 undertakings (October 2019)documented · June 2017 – October 2019; undertakings monitored to October 2024 · historical
- Ofwat to Southern Water Services LimitedAccepted section 19 enforceable undertakings instead of an enforcement order, with no financial penalty, after its sector-wide wastewater investigationdocumented · Undertakings dated 3 February 2026 · current at the evidence cutoff
- Lawrence Karl Gosden to Southern Water Services LimitedDirector and Chief Executive Officerdocumented · From 1 July 2022 (joined the company in May 2020) · current at the evidence cutoff
- Stuart Neil Ledger to Southern Water Services LimitedDirector and Chief Financial Officerdocumented · From 3 January 2023 · current at the evidence cutoff
- Matthew Reginald Wright to Southern Water Services LimitedDirectordocumented · 28 February 2011 – 31 December 2016 · historical
- Matthew Reginald Wright to Southern Water Services LimitedChief Executive Officerdocumented · 2011 – December 2016 (press report); "at the material times" of the alleged conduct (Divisional Court) · historical
- Malcolm Charles Cooper to Southern Water Services LimitedIndependent non-executive director; Audit Committee chair and senior independent director (2025-26 annual report)documented · From 23 December 2019 · current at the evidence cutoff
- Christèle Delbé to Southern Water Services LimitedIndependent non-executive director; Remuneration Committee chairdocumented · From 31 May 2023 · current at the evidence cutoff
- Kerensa Jane Jennings to Southern Water Services LimitedIndependent non-executive directordocumented · From 31 May 2023 · current at the evidence cutoff
- Neil Craig McArthur to Southern Water Services LimitedIndependent non-executive director; chair of the Health and Safety and Operational Risk Committeedocumented · From 1 October 2024 · current at the evidence cutoff
- Neil Robert Vint Corrigall to Southern Water Services LimitedNon-executive director nominated by the investor (not independent)documented · From 29 November 2023 · current at the evidence cutoff
- William David George Price to Southern Water Services LimitedNon-executive director nominated by the investor (not independent); receives no fees from the companydocumented · From 8 September 2021 · current at the evidence cutoff
- Stephen Glynn Hurrell to Southern Water Services LimitedNon-executive director nominated by the investordocumented · From 28 August 2026 (announced in July 2026) · current at the evidence cutoff
- Andrew Oswell Bede Davies to Southern Water Services LimitedDirector; independent non-executive director and Chair Designate from 6 May 2026; Chair from 16 July 2026documented · From 6 May 2026 · current at the evidence cutoff
- Keith Geddes Lough to Southern Water Services LimitedDirector; non-executive Chair until 16 July 2026documented · 1 August 2019 – 16 July 2026 · historical
- Steven Richard Fraser to Southern Water Services LimitedNon-executive director nominated by the investordocumented · 1 May 2022 – 8 December 2025 · historical
- Martin Bradley to Southern Water Services LimitedDirectordocumented · 8 September 2021 – 1 May 2022 · historical
- Sandra Faye Redding to Southern Water Services LimitedCompany secretary (General Counsel and Company Secretary)documented · From 22 July 2026 · current at the evidence cutoff
- Richard Denley John Manning to Southern Water Services LimitedCompany secretary (General Counsel and Company Secretary)documented · 24 July 2018 – 22 July 2026 · historical
- Graham Dudley Nicholson to Southern Water Services LimitedCompany secretarydocumented · Appointed before 1 April 1992; resigned 1 April 1994 · historical
- Richard Frank Clayton to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 31 August 1999 · historical
- Raymond Francis Thomas Collett to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 11 May 1993 · historical
- Raymond Francis Thomas Collett to Southern Water Services LimitedDirectordocumented · 2 May 1995 – 4 October 1996 · historical
- William John Wesley Courtney to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 1 February 1993 · historical
- William Cutting to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 15 June 1995 · historical
- Stuart Derwent to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 17 March 2005 · historical
- Bruce Alexander Ogston Hewett to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 1 February 1993 · historical
- Francis Neil Midmer to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 1 February 1993 · historical
- Graham Hillier Setterfield to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 10 November 1997 · historical
- Alastair Lumsden Smith to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 4 October 1996 · historical
- Keith Tozzi to Southern Water Services LimitedDirectordocumented · Appointed before 1 April 1992; resigned 1 February 1993 · historical
- Joseph Bernard Mangion to Southern Water Services LimitedDirectordocumented · 16 May 2003 – 16 July 2003 · historical
- Joseph Bernard Mangion to Southern Water Services LimitedDirectordocumented · 15 September 2003 – 30 November 2003 · historical
- Mark Alan Walters to Southern Water Services LimitedDirector (entry held under a separate Companies House officer record)documented · 13 January 2010 – 23 February 2011 · historical
- Mark Alan Walters to Southern Water Services LimitedDirectordocumented · 7 March 2014 – 26 September 2017 · historical
- Stuart Neil Ledger to SWS Holdings LimitedDirector; chaired the four SWS Scheme class meetings on 30 September 2025documented · From 25 October 2023 · current at the evidence cutoff
- William David George Price to Macquarie Asset ManagementHead of Macquarie Asset Management's utilities team (described as Utilities and Networks, EMEA, or European Utilities); with Macquarie since 2007documented · From 2007 (joined Macquarie); as described in July and October 2026 · current at the evidence cutoff
- Neil Robert Vint Corrigall to Macquarie Asset ManagementOperating partnerdocumented · As described in July and October 2026 · current at the evidence cutoff
- Martin Bradley to Macquarie Asset ManagementSenior Managing Directordocumented · As described in Asterion's release of 22 June 2026 · current or historical not established
- William David George Price to National Gas Transmission PlcDirectordocumented · From 4 September 2026 (the 2025-26 annual report already lists a "National Gas" directorship) · current at the evidence cutoff
- William David George Price to MIRA Core Gas LimitedDirectordocumented · From 31 May 2022 · current at the evidence cutoff
- William David George Price to EP InfrastructureDirectordocumented · Undated; listed as current in the 2025-26 annual report and on the company website · current at the evidence cutoff
- William David George Price to Czech Grid HoldingDirectordocumented · Undated; listed on the company's website in October 2026 · current or historical not established
- Neil Robert Vint Corrigall to Cadent Gas LimitedNon-executive directordocumented · Undated; listed as current in the 2025-26 annual report and on the company website · current at the evidence cutoff
- Neil Robert Vint Corrigall to Czech Grid HoldingNon-executive director (past according to the 2025-26 annual report; current according to the company website)documented · Undated · current or historical not established
- Andrew Oswell Bede Davies to EKFB joint ventureChair of the joint venture building the central section of HS2documented · From 2022 · current at the evidence cutoff
- Andrew Oswell Bede Davies to Chemring Group plcSenior independent directordocumented · May 2016 – January 2025 · historical
- Andrew Oswell Bede Davies to Kier Group plcChief executivedocumented · April 2019 – October 2025 (annual report); 2019-2025 (company website) · historical
- Andrew Oswell Bede Davies to Wates GroupChief executivedocumented · January 2014 – January 2018 · historical
- Keith Geddes Lough to Hunting PLCDirector (senior independent director)documented · From 23 April 2018 · current at the evidence cutoff
- Stuart Neil Ledger to Affinity Water LimitedDirector; chief executive and, before that, chief financial officer (company biography)documented · 9 October 2017 – 16 December 2022 (directorship) · historical
- Sandra Faye Redding to Highview PowerGeneral Counsel (former)documented · Undated; before June 2026 · historical
- Sandra Faye Redding to Dragon OilGeneral Counsel (former)documented · Undated; before June 2026 · historical
- Matthew Reginald Wright to Orsted (UK) LimitedDirector (managing director according to a press report)documented · 1 June 2017 – 24 April 2020 · historical
- Matthew Reginald Wright to United Utilities Water LimitedDirectordocumented · 27 September 2007 – 25 February 2011 · historical
- Sebastianus Antonius Theodorus Boelen to Curium Finance LimitedDirector (no resignation date shown; the company is listed as dissolved)documented · From 17 January 2017 · current or historical not established
- Stephen Glynn Hurrell to Camell LimitedDirector (no resignation date shown; the company is listed as dissolved)documented · From 26 May 2022 · current or historical not established
- Southern Water Services Limited to Costain LimitedContracting entity: awarded contract no. 1 (lots 1 and 2) of its AMP8 Capital Strategic Delivery Partners framework to Costain Limited and MWH Treatment Limited as a group (£1,881,833,333.33 excluding VAT)documented · Concluded 7 November 2024 · current or historical not established
- Southern Water Services Limited to MWH Treatment LimitedContracting entity: awarded contract no. 1 (lots 1 and 2) of its AMP8 Capital Strategic Delivery Partners framework to MWH Treatment Limited and Costain Limited as a group (£1,881,833,333.33 excluding VAT)documented · Concluded 7 November 2024 · current or historical not established
- Southern Water Services Limited to Kier Integrated Services LimitedContracting entity: awarded contract no. 2 (lots 1 and 2) of its AMP8 Capital Strategic Delivery Partners framework (£1,881,833,333.33 excluding VAT)documented · Concluded 8 October 2024 · current or historical not established
- Southern Water Services Limited to Galliford Try Construction LimitedContracting entity: awarded contract no. 3 (lot 2) of its AMP8 Capital Strategic Delivery Partners framework (£907,333,333.33 excluding VAT)documented · Concluded 8 October 2024 · current or historical not established
- Southern Water Services Limited to Morrison Water Services LimitedContracting entity: awarded contract no. 4 (lot 3) of its AMP8 Capital Strategic Delivery Partners framework (£1,524,000,000 excluding VAT)documented · Concluded 8 October 2024 · current or historical not established
- Southern Water Services Limited to Mott MacDonald LimitedContracting entity: awarded contracts in lot 1 (Asset Management Support Services, £80,000,000) and lot 3 (Technical & Engineering Support Services, £96,000,000) of its AMP8 Professional Services Frameworkdocumented · Concluded 13 May 2024 · current or historical not established
- Southern Water Services Limited to AECOM LimitedContracting entity: awarded contracts in lot 1 (Asset Management Support Services, £80,000,000) and lot 2 (PMO and Project Management, £64,000,000) of its AMP8 Professional Services Frameworkdocumented · Concluded 13 May 2024 · current or historical not established
- Southern Water Services Limited to Ove Arup & Partners LimitedContracting entity: awarded a contract in lot 1 (Asset Management Support Services, £80,000,000) of its AMP8 Professional Services Frameworkdocumented · Concluded 13 May 2024 · current or historical not established
- Southern Water Services Limited to KPMG LLPContracting entity: awarded a contract in lot 2 (PMO and Project Management, £64,000,000) of its AMP8 Professional Services Frameworkdocumented · Concluded 13 May 2024 · current or historical not established
- Southern Water Services Limited to Turner and Townsend Project Management LimitedContracting entity: awarded a contract in lot 2 (PMO and Project Management, £64,000,000) of its AMP8 Professional Services Frameworkdocumented · Concluded 13 May 2024 · current or historical not established
- Southern Water Services Limited to Stantec UK LimitedContracting entity: awarded a contract in lot 3 (Technical & Engineering Support Services, £96,000,000) of its AMP8 Professional Services Frameworkdocumented · Concluded 13 May 2024 · current or historical not established
- Southern Water Services Limited to Binnies UK LimitedContracting entity: awarded a contract in lot 3 (Technical & Engineering Support Services, £96,000,000) of its AMP8 Professional Services Framework to Binnies UK Limited and WSP UK Limited as a groupdocumented · Concluded 13 May 2024 · current or historical not established
- Southern Water Services Limited to WSP UK LimitedContracting entity: awarded a contract in lot 3 (Technical & Engineering Support Services, £96,000,000) of its AMP8 Professional Services Framework to WSP UK Limited and Binnies UK Limited as a groupdocumented · Concluded 13 May 2024 · current or historical not established
- Southern Water Services Limited to CapitaCustomer under a contract with Capita in its retail household business, which it planned to make more efficient through process improvementdocumented · Referred to in the supplementary prospectus of 30 July 2025 · current or historical not established
- Southern Water Services Limited to Portsmouth Water LimitedBuyer under a bulk-supply contract: Portsmouth Water is to supply 21 million litres of water a day once the Havant Thicket Reservoir is built (fixed payments of £2,575.0 million over the term)documented · Entered into in February 2021; contract term 2021 – 2100; listed among commitments at 31 March 2026 · current at the evidence cutoff
- Alter Domus (UK) Limited to Sandstone Water Holdings LimitedCorporate company secretary; its London office became the registered office of the company on 22 December 2025documented · From 13 November 2025; current on the officers register retrieved in October 2026 · current at the evidence cutoff
- Kevin Gregory Hall to Southern Water Services LimitedCompany secretarydocumented · 24 December 1996 – 30 September 2015 · historical
- Graham John Heyes to Southern Water Services LimitedCompany secretarydocumented · 1 April 1994 – 24 December 1996 · historical
- Joanne Statton to Southern Water Services LimitedCompany secretarydocumented · 1 October 2015 – 24 July 2018 · historical
- Nadim Ahmad to Southern Water Services LimitedDirectordocumented · 31 July 2022 – 3 January 2023 · historical
- David William Alexander to Southern Water Services LimitedDirectordocumented · 10 February 2005 – 10 April 2006 · historical
- Peter Szymon Antolik to Southern Water Services LimitedDirectordocumented · 22 February 2012 – 7 January 2015 · historical
- Robert David Armstrong to Southern Water Services LimitedDirectordocumented · 23 May 2008 – 31 January 2015 · historical
- Martin Wayne Baggs to Southern Water Services LimitedDirectordocumented · 14 May 2001 – 7 October 2005 · historical
- Jean Claude Banon to Southern Water Services LimitedDirectordocumented · 7 May 2003 – 10 February 2005 · historical
- Wendy Jacqueline Barnes to Southern Water Services LimitedDirectordocumented · 26 September 2017 – 27 March 2020 · historical
- Cheryl Campbell Black to Southern Water Services LimitedDirectordocumented · 23 May 2008 – 31 January 2015 · historical
- Sebastianus Antonius Theodorus Boelen to Southern Water Services LimitedDirectordocumented · 14 December 2018 – 31 July 2022 · historical
- Rosemary Jane Cecilia Boot to Southern Water Services LimitedDirectordocumented · 1 March 2015 – 31 March 2023 · historical
- Michael Carmedy to Southern Water Services LimitedDirectordocumented · 1 November 2011 – 31 March 2016 · historical
- Christopher Baker Chapman to Southern Water Services LimitedDirectordocumented · 1 November 1997 – 18 November 2003 · historical
- Rory Malcolm Cullinan to Southern Water Services LimitedDirectordocumented · 7 May 2003 – 1 October 2004 · historical
- Francois Darley to Southern Water Services LimitedDirectordocumented · 7 May 2003 – 15 March 2005 · historical
- Leslie William Dawson to Southern Water Services LimitedDirectordocumented · 25 October 2005 – 26 May 2010 · historical
- Paul de Rosen to Southern Water Services LimitedDirectordocumented · 24 February 2004 – 10 April 2006 · historical
- Barrie Walter Delacour to Southern Water Services LimitedDirectordocumented · 10 November 1997 – 25 April 2007 · historical
- Anthony James Fegan to Southern Water Services LimitedDirectordocumented · 16 July 1999 – 1 September 2004 · historical
- Ian Raymond Francis to Southern Water Services LimitedDirectordocumented · 12 September 2018 – 12 February 2019 · historical
- Mary Katherine Fuller to Southern Water Services LimitedDirectordocumented · 15 June 2020 – 8 September 2021 · historical
- Andrew Emerson Gilbert to Southern Water Services LimitedDirectordocumented · 26 September 2017 – 4 October 2018 · historical
- David Golden to Southern Water Services LimitedDirectordocumented · 1 November 2003 – 23 June 2015 · historical
- Howard Charles Goodbourn to Southern Water Services LimitedDirectordocumented · 29 March 2004 – 7 March 2011 · historical
- Gillian Lesley Guy to Southern Water Services LimitedDirectordocumented · 12 November 2018 – 31 March 2025 · historical
- Lisa Harrington to Southern Water Services LimitedDirectordocumented · 1 April 2015 – 31 March 2018 · historical
- John Clement Harris to Southern Water Services LimitedDirectordocumented · 1 November 1997 – 31 March 2005 · historical
- Colin William Hood to Southern Water Services LimitedDirectordocumented · 23 February 2011 – 1 April 2014 · historical
- Eric John Hutchinson to Southern Water Services LimitedDirectordocumented · 1 December 1992 – 31 May 2003 · historical
- Robert Archie Jennings to Southern Water Services LimitedDirectordocumented · 1 July 2012 – 28 February 2017 · historical
- Michael John Kinski to Southern Water Services LimitedDirectordocumented · 16 December 1996 – 1 March 1998 · historical
- William Anthony Lambe to Southern Water Services LimitedDirectordocumented · 3 May 2016 – 14 December 2018 · historical
- Simon Michael Peter MacDonagh to Southern Water Services LimitedDirectordocumented · 15 March 2005 – 22 April 2008 · historical
- Steven Marshall to Southern Water Services LimitedDirectordocumented · 19 April 2005 – 31 January 2010 · historical
- Mark William Mathieson to Southern Water Services LimitedDirectordocumented · 8 September 2021 – 31 October 2023 · historical
- Ian James McAulay to Southern Water Services LimitedDirectordocumented · 1 February 2017 – 30 June 2022 · historical
- Kevin McCullough to Southern Water Services LimitedDirectordocumented · 18 July 2019 – 31 July 2022 · historical
- Ronnie Edward Mercer to Southern Water Services LimitedDirectordocumented · 1 March 1998 – 1 April 2001 · historical
- Paul John Moy to Southern Water Services LimitedDirectordocumented · 22 February 2010 – 19 May 2016 · historical
- Richard Anthony Nelson to Southern Water Services LimitedDirectordocumented · 23 April 2002 – 7 May 2003 · historical
- John James O'Brien to Southern Water Services LimitedDirectordocumented · 15 March 2005 – 10 April 2006 · historical
- Phillip William Peters to Southern Water Services LimitedDirectordocumented · 22 October 2007 – 12 January 2010 · historical
- Michael Colin Putnam to Southern Water Services LimitedDirectordocumented · 26 September 2017 – 31 July 2024 · historical
- Cyril Roger Lacan to Southern Water Services LimitedDirectordocumented · 7 May 2003 – 24 February 2004 · historical
- Michael Paul Sheffield to Southern Water Services LimitedDirectordocumented · 1 June 2014 – 31 March 2023 · historical
- Bronte Louise Somes to Southern Water Services LimitedDirectordocumented · 19 July 2011 – 19 May 2016 · historical
- David John Stainthorpe to Southern Water Services LimitedDirectordocumented · 10 November 1997 – 30 September 2004 · historical
- Sara Sulaiman to Southern Water Services LimitedDirectordocumented · 26 September 2017 – 8 September 2021 · historical
- Philip Swift to Southern Water Services LimitedDirectordocumented · 31 May 2023 – 31 March 2025 · historical
- William Tame to Southern Water Services LimitedDirectordocumented · 1 January 2015 – 31 March 2019 · historical
- Robert Peter Thian to Southern Water Services LimitedDirectordocumented · 13 May 2003 – 23 January 2008 · historical
- Surinder Singh Toor to Southern Water Services LimitedDirectordocumented · 9 February 2009 – 7 March 2014 · historical
- Andrew John Truscott to Southern Water Services LimitedDirectordocumented · 7 January 2015 – 26 September 2017 · historical
- Michael William Welton to Southern Water Services LimitedDirectordocumented · 24 January 2008 – 20 February 2012 · historical
- John Donald Black Workman to Southern Water Services LimitedDirectordocumented · 1 October 2004 – 15 October 2007 · historical
- Jaron Yuen to Southern Water Services LimitedDirectordocumented · 22 February 2010 – 19 July 2011 · historical
- Jason Demetrious Zibarras to Southern Water Services LimitedDirectordocumented · 22 October 2007 – 13 January 2010 · historical
- SWS Group Holdings Limited to SWS Holdings LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 6 April 2016 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Southern Water Services Group Limited to SWS Group Holdings LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 6 April 2016 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Southern Water Investments Limited to Southern Water Services Group LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 6 April 2016 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Southern Water Capital Limited to Southern Water Investments LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 6 April 2016 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Greensands Finance Limited to Southern Water Capital LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 23 October 2018 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Greensands Investments Limited to Southern Water Capital LimitedFormer registrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · 6 April 2016 – 23 October 2018 · historical
- Greensands Finance Holdings Limited to Greensands Finance LimitedRegistrable controller: 75% or more of the shares and voting rightsdocumented · From 23 October 2018 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Greensands Investments Limited to Greensands Finance LimitedFormer registrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · 31 July 2018 – 23 October 2018 · historical
- Greensands Investments Limited to Greensands Finance Holdings LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 31 July 2018 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Greensands Senior Finance Limited to Greensands Investments LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 6 April 2016 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Greensands Junior Finance Limited to Greensands Senior Finance LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 6 April 2016 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Sandstone Bidco Limited to Greensands Junior Finance LimitedRegistrable controller: 75% or more of the shares (no voting or appointment rights listed)documented · From 4 July 2025 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Greensands (UK) Limited to Greensands Junior Finance LimitedFormer registrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · 6 April 2016 – 4 July 2025 · historical
- Sandstone Midco Limited to Sandstone Bidco LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 29 May 2025 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Sandstone Water Holdings Limited to Sandstone Midco LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 29 May 2025 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Martin Bradley to Sandstone Water Holdings LimitedDirectordocumented · From 12 August 2026 · current at the evidence cutoff
- Neil Robert Vint Corrigall to Sandstone Water Holdings LimitedDirectordocumented · From 12 August 2026 · current at the evidence cutoff
- Adrian Peter Page to Sandstone Water Holdings LimitedDirectordocumented · From 12 August 2026 · current at the evidence cutoff
- Stephen Glynn Hurrell to Sandstone Water Holdings LimitedDirectordocumented · From 12 August 2026 · current at the evidence cutoff
- Catherine Isabelle Harber to Sandstone Water Holdings LimitedDirectordocumented · 29 May 2025 – 12 August 2026 · historical
- Pooja Hitesh Shah to Sandstone Water Holdings LimitedDirectordocumented · 3 March 2026 – 12 August 2026 · historical
- William David George Price to Sandstone Water Holdings LimitedDirectordocumented · 20 December 2025 – 12 August 2026 · historical
- Richard Greenleaf to Sandstone Water Holdings LimitedDirectordocumented · 29 May 2025 – 3 March 2026 · historical
- Susana Durante Teixeira Gomes Leith-Smith to Sandstone Water Holdings LimitedDirectordocumented · 29 May 2025 – 20 December 2025 · historical
- Charles G. H. Roemers to MSCIF Sandstone Ventures S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- Catherine Isabelle Harber to MSCIF Sandstone Ventures S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- Viktor Schuh to MSCIF Sandstone Ventures S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- William David George Price to MSCIF Sandstone Ventures S.à r.l.Former managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as former in the aggregator view retrieved in October 2026 · historical
- Mark Roland Phillips to MSCIF Sandstone Ventures S.à r.l.Former managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as former in the aggregator view retrieved in October 2026 · historical
- William David George Price to MSCIF Sandstone Holdings S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · 17 March 2022 – 17 June 2024 · historical
- Catherine Isabelle Harber to MSCIF Sandstone Holdings S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · From 21 May 2025 · current or historical not established
- Charles G. H. Roemers to MSCIF Sandstone Holdings S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · From 21 May 2025 · current or historical not established
- Viktor Schuh to MSCIF Sandstone Holdings S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · From 13 March 2024 · current or historical not established
- Malcolm Charles Cooper to Grove Court Properties (Holdings) LimitedDirectordocumented · From 13 February 2026 · current at the evidence cutoff
- Malcolm Charles Cooper to Grove Court Properties (Beaconsfield) LimitedDirectordocumented · From 13 February 2026 · current at the evidence cutoff
- Malcolm Charles Cooper to Morhomes PlcDirectordocumented · 2 March 2018 – 10 September 2026 · historical
- Lawrence Karl Gosden to Water UKDirectordocumented · From 1 July 2022 · current at the evidence cutoff
- Kerensa Jane Jennings to Group of Humans LimitedDirectordocumented · From 30 June 2026 · current at the evidence cutoff
- Neil Robert Vint Corrigall to Southern Water Capital LimitedDirectordocumented · From 28 September 2026 · current at the evidence cutoff
- Neil Robert Vint Corrigall to Greensands Finance LimitedDirectordocumented · From 28 September 2026 · current at the evidence cutoff
- Neil Robert Vint Corrigall to Greensands Finance Holdings LimitedDirectordocumented · From 28 September 2026 · current at the evidence cutoff
- Neil Robert Vint Corrigall to Greensands Financing PlcDirectordocumented · From 28 September 2026 · current at the evidence cutoff
- Lawrence Karl Gosden to Greensands (UK) LimitedDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to SW (Finance) I PLCDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to Southern Water (Greensands) Financing plcDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to Greensands Financing PlcDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to SW (Finance) II LimitedDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to Southern Water LimitedDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to Southern Water (NR) Holdings LimitedDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to Southern Water (NR) LimitedDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to Greensands Europe LimitedDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to Southern Water Industries LimitedDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Lawrence Karl Gosden to Southern Water Executive Pension Scheme Trustees LimitedDirectordocumented · 1 July 2022 – 25 October 2023 · historical
- Stuart Neil Ledger to Greensands (UK) LimitedDirectordocumented · 27 January 2023 – 14 April 2025 · historical
- Nadim Ahmad to Greensands (UK) LimitedDirectordocumented · 31 July 2022 – 27 January 2023 · historical
- Stephen Glynn Hurrell to Sandstone Bidco LimitedDirectordocumented · From 12 August 2026 · current at the evidence cutoff
- Stephen Glynn Hurrell to Sandstone Midco LimitedDirectordocumented · From 12 August 2026 · current at the evidence cutoff
- Stephen Glynn Hurrell to Cadent Gas LimitedDirectordocumented · 31 March 2017 – 23 December 2021 · historical
- Stephen Glynn Hurrell to Cadent Finance PlcDirectordocumented · 15 February 2019 – 23 December 2021 · historical
- Stephen Glynn Hurrell to Quadgas Finance PlcDirectordocumented · 15 February 2019 – 23 December 2021 · historical
- Stephen Glynn Hurrell to NGET/SPT Upgrades LimitedDirectordocumented · 15 December 2022 – 27 October 2023 · historical
- Viktor Schuh to MSCIF Luxembourg C Holdings S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- Charles G. H. Roemers to MSCIF Luxembourg C Holdings S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- John William Lee to MSCIF Luxembourg C Holdings S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- Philip Hogan to MSCIF Luxembourg C Holdings S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- Stuart Neil Ledger to Southern Water Services Group LimitedDirectordocumented · From 25 October 2023 · current at the evidence cutoff
- Stuart Neil Ledger to SW (Finance) I PLCDirectordocumented · From 25 October 2023 · current at the evidence cutoff
- Stuart Neil Ledger to Southern Water Capital LimitedDirectordocumented · From 25 October 2023 · current at the evidence cutoff
- Stuart Neil Ledger to SW (Finance) II LimitedDirectordocumented · From 25 October 2023 · current at the evidence cutoff
- Stuart Neil Ledger to SWS Group Holdings LimitedDirectordocumented · From 25 October 2023 · current at the evidence cutoff
- Stuart Neil Ledger to Greensands Finance Holdings LimitedDirectordocumented · From 27 January 2023 · current at the evidence cutoff
- Stuart Neil Ledger to Greensands Finance LimitedDirectordocumented · From 27 January 2023 · current at the evidence cutoff
- Stuart Neil Ledger to Greensands Financing PlcDirectordocumented · From 27 January 2023 · current at the evidence cutoff
- Stuart Neil Ledger to Affinity Water Holdings LimitedDirectordocumented · 1 November 2017 – 16 December 2022 · historical
- Stuart Neil Ledger to Thames Water Utilities Finance PlcDirectordocumented · 30 September 2008 – 29 September 2017 · historical
- Stuart Neil Ledger to Rett UKDirectordocumented · From 23 January 2019 · current at the evidence cutoff
- Stuart Neil Ledger to Landlord Tap LimitedDirectordocumented · From 7 February 2014 · current at the evidence cutoff
- Charles G. H. Roemers to Macquarie Asset Management Europe S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- Mark Roland Phillips to Macquarie Asset Management Europe S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- Cindyrella Amistadi to Macquarie Asset Management Europe S.à r.l.Managing director (gérant) listed by a business-registry aggregatordocumented · Undated; shown as current in the aggregator view retrieved in October 2026 · current or historical not established
- MSCIF Wight Midco Limited to MSCIF Wight Bidco LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 22 June 2021 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Richard Denley John Manning to SW (Finance) I PLCDirector and company secretarydocumented · 13 October 2021 – 1 September 2026 · historical
- William David George Price to MSCIF Wight Bidco LimitedDirectordocumented · From 22 June 2021 · current at the evidence cutoff
- William David George Price to MSCIF Wight Midco LimitedDirectordocumented · From 21 June 2021 · current at the evidence cutoff
- William David George Price to Greensands Europe LimitedDirectordocumented · From 31 October 2025 · current at the evidence cutoff
- William David George Price to Southern Water (Greensands) Financing plcDirectordocumented · From 31 October 2025 · current at the evidence cutoff
- William David George Price to Greensands Financing PlcDirectordocumented · 8 September 2021 – 28 September 2026 · historical
- William David George Price to Southern Water Capital LimitedDirectordocumented · 8 September 2021 – 28 September 2026 · historical
- William David George Price to Greensands Junior Finance LimitedDirectordocumented · 31 October 2025 – 28 September 2026 · historical
- William David George Price to Sandstone Midco LimitedDirectordocumented · 20 December 2025 – 12 August 2026 · historical
- Neil Robert Vint Corrigall to Greensands Investments LimitedDirectordocumented · From 28 September 2026 · current at the evidence cutoff
- Neil Robert Vint Corrigall to Greensands Senior Finance LimitedDirectordocumented · From 28 September 2026 · current at the evidence cutoff
- Neil Robert Vint Corrigall to Greensands Junior Finance LimitedDirectordocumented · From 28 September 2026 · current at the evidence cutoff
- Malcolm Charles Cooper to Scorpion Properties LtdDirectordocumented · From 2 March 2026 · current at the evidence cutoff
- Malcolm Charles Cooper to Gerrards House LimitedDirectordocumented · From 13 February 2026 · current at the evidence cutoff
- Malcolm Charles Cooper to Merlin Properties LimitedDirectordocumented · From 30 May 2025 · current at the evidence cutoff
- Malcolm Charles Cooper to Custodian Property Income REIT PLCDirectordocumented · From 6 June 2022 · current at the evidence cutoff
- Malcolm Charles Cooper to Local Pensions Partnership Investments LtdDirectordocumented · From 1 September 2021 · current at the evidence cutoff
- Malcolm Charles Cooper to ACT (Administration) LimitedDirectordocumented · 1 May 2023 – 30 April 2025 · historical
- Malcolm Charles Cooper to Morgan Sindall Group PlcDirectordocumented · 9 November 2015 – 31 August 2024 · historical
- Malcolm Charles Cooper to CLS Holdings PlcDirectordocumented · 22 May 2007 – 23 April 2020 · historical
- Malcolm Charles Cooper to Cadent Gas LimitedDirectordocumented · 2 June 2016 – 31 March 2017 · historical
- Malcolm Charles Cooper to Cadent Finance PlcDirectordocumented · 8 September 2016 – 31 March 2017 · historical
- Kerensa Jane Jennings to Inglenook Global LtdDirectordocumented · From 23 April 2024 · current at the evidence cutoff
- Kerensa Jane Jennings to Centre for the Acceleration of Social TechnologyDirectordocumented · 25 November 2020 – 9 January 2024 · historical
- Kerensa Jane Jennings to Inspiring Digital Enterprise Award C.I.C.Directordocumented · 12 May 2015 – 20 September 2019 · historical
- Kerensa Jane Jennings to Elysium House LtdDirectordocumented · 3 December 2013 – 13 April 2016 · historical
- Southern Water (NR) Limited to Southern Water LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 6 April 2016 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Jesús Olmos Clavijo to Kohlberg Kravis Roberts (España) Asesores SLDirector (consejero)documented · 23 April 2015 – 13 August 2018 · historical
- Jesús Olmos Clavijo to Acciona Energía Internacional SADirector (consejero)documented · 25 November 2014 – 6 April 2018 · historical
- Jesús Olmos Clavijo to Demeter Bidco SLJoint administrator (administrador solidario)documented · 10 March 2026 – 24 September 2026 · historical
- Guido Mitrani to Centaurus Bidco SLDirector (consejero)documented · 2 July 2020 – 3 August 2023 · historical
- Matthew Reginald Wright to Water UKDirectordocumented · 1 April 2011 – 14 March 2017 · historical
- Matthew Reginald Wright to SWS Group Holdings LimitedDirectordocumented · 14 March 2011 – 31 December 2016 · historical
- Matthew Reginald Wright to SWS Holdings LimitedDirectordocumented · 14 March 2011 – 31 December 2016 · historical
- Sandra Faye Redding to SW (Finance) I PLCDirector and company secretarydocumented · From 1 September 2026 · current at the evidence cutoff
- Ian James McAulay to SW (Finance) I PLCDirectordocumented · 13 October 2021 – 30 June 2022 · historical
- Macquarie Asset Management UK Holdings No.1 Limited to Macquarie Infrastructure and Real Assets (Europe) LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 1 July 2020 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Macquarie Group Holdings (UK) No.2 Limited to Macquarie Infrastructure and Real Assets (Europe) LimitedFormer registrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · 6 April 2016 – 25 August 2020 · historical
- Southern Water Investments Limited to Southern Water (NR) Holdings LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 6 April 2016 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Custodian Property Income REIT PLC to Grove Court Properties (Holdings) LimitedRegistrable controller: 75% or more of the shares and voting rights and the right to appoint or remove directorsdocumented · From 13 February 2026 (date notified to the register); current on the register retrieved in October 2026 · current at the evidence cutoff
- Adrian Peter Page to South Staffordshire LimitedDirectordocumented · 4 December 2003 – 29 April 2020 · historical
- Adrian Peter Page to South Staffordshire Water PlcDirectordocumented · 1 July 1998 – 29 April 2020 · historical
- Adrian Peter Page to Energy Assets Group Holdings LimitedDirectordocumented · From 2 July 2021 · current at the evidence cutoff
- Martin Bradley to Macquarie Infrastructure and Real Assets (Europe) LimitedDirectordocumented · From 21 April 2022 · current at the evidence cutoff
- Martin Bradley to Macquarie Asset Management UK Holdings No.1 LimitedDirectordocumented · From 1 March 2022 · current at the evidence cutoff
- Martin Bradley to MSCIF Wight Bidco LimitedDirectordocumented · 22 June 2021 – 20 April 2024 · historical
- Martin Bradley to MSCIF Wight Midco LimitedDirectordocumented · 21 June 2021 – 20 April 2024 · historical
- Martin Bradley to Cadent Gas LimitedDirectordocumented · 31 March 2017 – 28 November 2018 · historical
- Martin Bradley to Quadgas Finance PlcDirectordocumented · 31 March 2017 – 28 November 2018 · historical
- Keith Geddes Lough to Rockhopper Exploration PLCDirectordocumented · 14 January 2014 – 1 October 2023 · historical
- Keith Geddes Lough to Capricorn Energy PLCDirectordocumented · 14 May 2015 – 1 February 2023 · historical
- Ian James McAulay to Water UKDirectordocumented · 14 March 2017 – 30 June 2022 · historical
- Ian James McAulay to SWS Holdings LimitedDirectordocumented · 31 March 2017 – 30 June 2022 · historical
- Ian James McAulay to SWS Group Holdings LimitedDirectordocumented · 31 March 2017 – 30 June 2022 · historical
- Ian James McAulay to Southern Water Services Group LimitedDirectordocumented · 31 March 2017 – 30 June 2022 · historical
- Ian James McAulay to Southern Water Investments LimitedDirectordocumented · 31 March 2017 – 30 June 2022 · historical
- Ian James McAulay to Southern Water LimitedDirectordocumented · 31 March 2017 – 30 June 2022 · historical
- Ian James McAulay to Pennon Group PlcDirectordocumented · 9 September 2013 – 31 August 2016 · historical
- Ian James McAulay to Viridor LimitedDirectordocumented · 9 September 2013 – 31 August 2016 · historical
- Mark William Mathieson to MSCIF Wight Bidco LimitedDirectordocumented · 22 June 2021 – 20 December 2024 · historical
- Mark William Mathieson to MSCIF Wight Midco LimitedDirectordocumented · 21 June 2021 – 20 December 2024 · historical
- Mark William Mathieson to Cadent Gas LimitedDirectordocumented · From 28 November 2018 · current at the evidence cutoff
- Mark William Mathieson to MIRA Core Gas LimitedDirectordocumented · From 11 October 2018 · current at the evidence cutoff
- Mark William Mathieson to National Gas Transmission PlcDirectordocumented · 31 January 2023 – 15 May 2026 · historical
- Andrew Emerson Gilbert to Greensands Financing PlcDirectordocumented · 23 October 2018 – 5 August 2019 · historical
- Andrew Emerson Gilbert to Greensands Junior Finance LimitedDirectordocumented · 1 November 2017 – 5 August 2019 · historical
- Andrew Emerson Gilbert to Greensands (UK) LimitedDirectordocumented · 1 November 2017 – 5 August 2019 · historical
- Andrew Emerson Gilbert to Southern Water Capital LimitedDirectordocumented · 1 November 2017 – 5 August 2019 · historical
- Mary Katherine Fuller to TD Bidco LimitedDirectordocumented · 16 November 2022 – 5 March 2025 · historical
- Mary Katherine Fuller to Pacific (BC) Topco LimitedDirectordocumented · From 5 December 2024 · current at the evidence cutoff
- Mary Katherine Fuller to MK Holdco LimitedDirectordocumented · From 6 March 2023 · current at the evidence cutoff
- Mary Katherine Fuller to Midsummer Place LimitedDirectordocumented · From 7 December 2021 · current at the evidence cutoff
- Philip Swift to MEIF 6 Range Bidco LimitedDirectordocumented · From 4 April 2025 · current at the evidence cutoff
- Philip Swift to MEIF 6 Range Holdings LimitedDirectordocumented · From 4 April 2025 · current at the evidence cutoff
- Philip Swift to MEIF 6 Range Investments LimitedDirectordocumented · From 4 April 2025 · current at the evidence cutoff
- Michael Colin Putnam to Skanska UK PlcDirectordocumented · 1 December 2004 – 8 May 2017 · historical
- Michael Colin Putnam to Skanska Construction Holdings UK LimitedDirectordocumented · 1 October 2009 – 8 May 2017 · historical
- Nadim Ahmad to Clyde Moray LtdDirectordocumented · From 2 July 2019 · current at the evidence cutoff
- Nadim Ahmad to Greensands Junior Finance LimitedDirectordocumented · 31 July 2022 – 27 January 2023 · historical
- Paul John Moy to UBS Infrastructure Fund GP UK LtdDirectordocumented · 9 October 2006 – 11 July 2011 · historical
- Paul John Moy to Phildrew Nominees LimitedDirectordocumented · 28 October 2008 – 11 July 2011 · historical
- Paul John Moy to Greensands Investments LimitedDirectordocumented · 12 October 2007 – 20 July 2016 · historical
- Paul John Moy to Southern Water Capital LimitedDirectordocumented · 17 February 2010 – 20 July 2016 · historical
- Mark Alan Walters to Nadara LimitedDirectordocumented · From 1 January 2024 · current at the evidence cutoff
- Mark Alan Walters to Ventient Energy LimitedDirectordocumented · 14 November 2017 – 1 January 2020 · historical
- Michael Colin Putnam to Bazalgette Tunnel LimitedDirectordocumented · From 16 July 2018 · current at the evidence cutoff
- Michael Colin Putnam to Network Rail LimitedDirectordocumented · From 8 January 2018 · current at the evidence cutoff
- Rosemary Jane Cecilia Boot to SDCL Efficiency Income Trust PlcDirectordocumented · From 1 August 2025 · current at the evidence cutoff
- Rosemary Jane Cecilia Boot to Urban&Civic PlcDirectordocumented · From 18 February 2021 · current at the evidence cutoff
- Rosemary Jane Cecilia Boot to Chapter Zero LimitedDirectordocumented · From 20 June 2019 · current at the evidence cutoff
- Rosemary Jane Cecilia Boot to Triple Point Energy Transition PlcDirectordocumented · 21 August 2020 – 24 February 2025 · historical
chronology
- Scottish Power plc acquires Southern Water plc c-own-scottishpower-1996
- ScottishPower completes the sale of Southern Water to First Aqua Limited c-own-sale-2002
- Securitised financing group of Southern Water set up c-chain-securitised-group
- Greensands Holdings becomes ultimate parent after Greensands Investments acquires Southern Water Capital c-own-greensands-2007 c-own-sale-2007
- Southern Water fined £200,000 for Margate discharges c-ea-2013-margate-sentence
- Court of Appeal dismisses Southern Water's appeal against the Margate fine c-ea-2014-appeal
- Southern Water fined £2,000,000 for discharges from the Margate pumping station c-ea-2016-margate-fine
- Southern Water fined at Southampton Magistrates' Court over discoloured water after a burst main c-inc-dwi-burst-main
- Southern Water fined at Newport Crown Court over unfit water from the Cooks Castle reservoir c-inc-dwi-cooks-castle
- Asterion Industrial Partners SGEIC entered in the CNMV register c-aso-cnmv-registration
- Greensands Finance replaces Greensands Investments as registered controller of Southern Water Capital c-chain-swc-parents c-chain-gsf-parents
- Ofwat confirms £126 million penalty and rebate package for Southern Water c-ofw-2019-findings c-ofw-2019-package
- Selfina Inversiones and Warrington Investments registered as sole-member companies c-aso-selfina-inc c-aso-warrington-inc
- Southern Water enters into a water-supply arrangement with Portsmouth Water linked to the Havant Thicket Reservoir c-con-portsmouth-water
- Shareholder Eurobonds exchanged for new shares in Greensands Holdings c-own-eurobonds
- Southern Water fined a record £90 million for 51 offences c-ea-2021-sentence
- William Price, Martin Bradley and Mark Mathieson appointed directors c-board-2021-handover
- MSCIF Wight Bidco acquires 62.24% of Greensands Holdings c-mq-wight-bidco-stake c-mq-agreement-2021
- Environment Agency and Ofwat launch an investigation into the sewage treatment works of all wastewater companies c-ofw-2021-sector-investigation
- Southern Water fined at Hove Crown Court over chlorate at High Park c-inc-dwi-high-park
- Lawrence Gosden joins the board as Chief Executive Officer c-board-gosden-ceo
- Ofwat names MSCIF and MAMES as Ultimate Controllers c-mq-ultimate-controllers
- Drinking Water Inspectorate cautions Southern Water over unfit water supplied on 30 July 2021 c-inc-dwi-caution
- Criminal cyber attack on Southern Water's IT systems, in which data was stolen c-inc-cyber
- Nine contracts concluded under the AMP8 Professional Services Framework c-con-psf-framework
- Kier Integrated Services, Galliford Try Construction and Morrison Water Services contracts concluded under the AMP8 capital delivery framework c-con-sdp-kier c-con-sdp-galliford c-con-sdp-morrison
- Costain and MWH Treatment group contract concluded under the AMP8 capital delivery framework c-con-sdp-costain-mwh
- Ofwat publishes its PR24 final determination of Southern Water's 2025–30 price control c-fin-pr24
- Greensands Holdings tells its investors that Southern Water Services needs £900m of additional funding c-rs-consultation-letter
- Rescue Issue of about £1.3bn terminated after no investor accepts it c-rs-rescue-issue
- Southern Water pleads guilty to 13 Margate and Broadstairs charges c-ea-margate-2026-charges
- Sandstone Bidco acquires Greensands Junior Finance and replaces Greensands Holdings as ultimate indirect UK holding company c-chain-restructure-2025 c-chain-gsjf-parents
- Southern Water Services accepts Sandstone Bidco's £655 million equity commitment; lock-up agreement signed c-rs-ecl c-rs-lua
- Press report of Kent MPs' letter asking the chief executive to decline his long-term incentive payment c-pay-press-mps-letter
- Category 1 pollution incident at Florence Farm triggers the bonus prohibition, according to the company c-pay-bonus-prohibition
- High Court sanctions the SWS and MidCo schemes of arrangement c-rs-schemes
- Operators find bio-beads escaped from containment equipment into the Eastbourne wastewater works c-inc-biobeads
- Sandstone Bidco's investors inject £505.0 million of equity into the group c-rs-equity-received
- Ofwat reports Southern Water in cash lock-up in its financial resilience report for 2024–25 c-fin-ofwat-mfr
- Ofwat reports Southern Water among six companies that triggered its rule against directors' performance-related pay c-ofw-2025-bonus-rule
- Southern Water concludes that bio-beads reported at Camber Sands had probably been released from Eastbourne c-inc-biobeads
- Information Commissioner's Office confirms no regulatory action over the 2023 cyber attack, the company reports c-inc-cyber
- Investor-nominated director Steve Fraser leaves the board c-board-fraser
- Ofwat accepts new section 19 undertakings from Southern Water and imposes no financial penalty c-ofw-2026-undertakings c-ofw-2026-no-penalty
- Notice of end of administration of Greensands (UK) Limited filed c-rs-admin-filings
- Sandstone Bidco's investors inject a further £395 million of equity into the group c-rs-equity-received
- Competition and Markets Authority publishes its redetermination c-fin-pr24 c-rs-going-concern-2026
- Andrew Davies joins the board as Chair Designate c-board-chair-change c-board-filings-2026
- SW (Finance) I PLC issues a £300 million bond and buys back £181.0 million of its A14 bond c-fin-swfi-post
- Asterion investment in the Southern Water group announced and notified to the European Commission c-ast-commitment c-ast-ec-notification
- Southern Water pleads guilty to River Test permit charges c-ea-river-test
- Southern Water's 2025–26 accounts approved, with no material uncertainty on going concern c-fin-signoff c-rs-going-concern-2026
- Andrew Davies succeeds Keith Lough as Chair c-board-chair-change
- Southern Water fined £7,127,083 for the Margate and Broadstairs offences c-ea-margate-2026-sentence
- European Commission clears case M.12488 (Asterion / Macquarie / Southern Water) c-ast-ec-clearance
- Sandra Redding succeeds Richard Manning as Company Secretary c-board-register-secretaries c-board-filings-2026
- Environment Agency announces prosecutions in the flow-monitoring case; Divisional Court refuses judicial review c-osm-ea-proceedings c-osm-jr-outcome
- Fitch upgrades the senior secured debt rating from BBB- to BBB c-fin-fitch-2026
- Transaction completes with Asterion taking a 20% minority shareholding in the group c-ast-ofwat-transaction
- Sandstone Water Holdings allots 20,345 new shares and appoints four directors c-ast-swhl-shares c-ast-swhl-20pct c-ast-swhl-board-2026
- Stephen Hurrell appointed a director c-board-new-investor-directors c-board-filings-2026
- Flow-monitoring case sent to Maidstone Crown Court c-osm-first-appearance
- Environment Agency announces £2.4 million fine for the Faversham and Whitstable pollution c-ea-faversham-sentence
- Ofwat opens a consultation on the change of control of Southern Water c-ast-ofwat-consultation
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