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Company profile

Southern Water Limited

UK company 02366620, incorporated on 1 April 1989.

Southern Water: Water and wastewater services for the South East

Southern Water: Water and wastewater services for Kent, Sussex, Hampshire and the Isle of Wight

Company number
02366620
Incorporated
1 Apr 1989
Companies House status
Active

Company identity

Founded / incorporated
1 April 1989

Company number 02366620

Verify at Companies House
Legal name
SOUTHERN WATER LIMITED
Company type
Private Limited Company
Region
South East England
Registered address
SOUTHERN HOUSE
YEOMAN ROAD
WORTHING
WEST SUSSEX
BN13 3NX
Insolvency history
No

Corporate ownership

Updated 07 Jul 2026 09:49

12 levels 1 ultimate controller Controls 5
1
Company Active LTD
Southern Water Limited
CRN 02366620
2
Direct controller Active LTD
Southern Water (NR) Limited
CRN SC215844
3
Intermediate controller Active LTD
Southern Water (NR) Holdings Limited
CRN 04772485
4
Intermediate controller Active LTD
Southern Water Investments Limited
CRN 04650294
5
Intermediate controller Active LTD
Southern Water Capital Limited
CRN 04608528
6
Intermediate controller Active LTD
Greensands Finance Limited
CRN 11493345
7
Intermediate controller Active LTD
Greensands Finance Holdings Limited
CRN 11493352
8
Intermediate controller Active LTD
Greensands Investments Limited
CRN 06301867
9
Intermediate controller Active LTD
Greensands Senior Finance Limited
CRN 06335773
10
Intermediate controller Active LTD
Greensands Junior Finance Limited
CRN 06335757
11
Intermediate controller Active LTD
Sandstone Bidco Limited
CRN 16482992
12
Intermediate controller Active LTD
Macquarie Infrastructure and Real Assets (Europe) Limited
CRN 03976881
13
Intermediate controller Active LTD
Sandstone Midco Limited
CRN 16482495
14
Ultimate controller Active LTD
Macquarie Asset Management UK Holdings No.1 Limited
CRN 12514361
15
Intermediate controller Active LTD
Sandstone Water Holdings Limited
CRN 16482350

Company events

Reference milestones and recent Companies House filing stream events.

5 events
31 Dec
2026

Accounts due

Accounts Due

Next accounts due date

19 Sep
2026

Confirmation statement due

Confirmation Due

Next confirmation statement due date

05 Sep
2025

Confirmation statement filed

Confirmation

Last confirmation statement made up date

31 Mar
2025

Accounts filed

Accounts

Last accounts made up date

01 Apr
1989

Incorporated

Inception

Company registered at Companies House