Supplier · Large organisation

H2O Nationwide Limited

H2O Nationwide Limited has won 13 UK public contracts worth £890m since 22 Jan 2021. See its competitors in architecture & engineering.

Company 03599380Companies House record Based in East of EnglandFirst contract 22 Jan 2021Latest contract 23 Apr 2026

Also published as Sureserve Compliance Water Limited, H20 Nationwide Ltd. These are the same company (03599380), so their contracts are counted together.

Contracts: 13
Published value: £890mwhere stated
Without competition: 8%1 contracts
Won by SMEs: 54%of 13 with size known

Contracts won per month, last 24 months 8 contracts · busiest month December 2024

2Dec 24
Mar 25
Jun 25
Sep 25
Dec 25
Mar 26
Jun 26
Sep 26

Biggest customers

Fusion21 Members Consortium 2 contracts · £850m
South East Consortium 2 contracts · £35m
London Borough of Haringey 1 contract · £1.08m
Home Group 1 contract · £1m
Flagship Housing Limited 1 contract · £735k
The Royal Borough of Kingston upon Thames 1 contract · £615k
Amplius Living 1 contract · £612k
B3Living 1 contract · £300k
Wandle Housing Association Limited 1 contract · £280k
Tamworth Borough Council 1 contract · £200k

What they supply

Architecture & engineering 4 contracts · £2.09m
Construction work 4 contracts · £852m
Waste, cleaning & environmental 2 contracts · £662k
Public utilities 1 contract · £300k
Construction materials 1 contract · £20m
Chemicals 1 contract · £15m

Competitors in architecture & engineering

Sector overview

WSP UK Limited 207 contracts · £1.74bn
Aecom Limited 190 contracts · £2.43bn
Ridge and Partners LLP 184 contracts · £2.11bn
Atkinsrealis UK Limited 157 contracts · £1.55bn
Ove Arup & Partners Limited 131 contracts · £1.61bn
Arcadis Consulting (UK) Ltd 119 contracts · £1.29bn

These are the suppliers with the most architecture & engineering contracts in the last two years, which is where H2O Nationwide Limited wins most of its work. They are not necessarily bidding for the same contracts. See the whole sector.

All contracts won by H2O Nationwide Limited

Contracts won by H2O Nationwide Limited
Date	Contract	Buyer	Value
23 Apr 2026	Contract for Water Treatment Management Services No competition	Redditch Borough Council	£50,000
25 Mar 2026	GB-Milton Keynes: Provision of Water Services Management including Legionella Bacteria Control.	Amplius Living	£612k
30 May 2025	23/023 Award Notice	Tamworth Borough Council	£200k
28 Apr 2025	Fusion21 Building Safety & Compliance Framework: Legionella Monitoring & Control	Fusion21 Members Consortium	£50m
15 Apr 2025	Fusion21 Building Safety & Compliance Framework - CF Award Notice	Fusion21 Members Consortium	£800m
26 Feb 2025	GB-Norwich: Water Hygiene	Flagship Housing Limited	£735k
11 Dec 2024	Provision of Water Hygiene Risk Assessments, Maintenance and Monitoring services.	Wandle Housing Association Limited	£280k
10 Dec 2024	Plumbing - Water storage tanks (20% VAT)	London Borough of Haringey	£1.08m
23 Sep 2024	Appointment of Water Treatment and Monitoring Contractor (Council's housing stock)	The Royal Borough of Kingston upon Thames	£615k
8 Aug 2024	SEC Compliance Consultancy Framework: Lot 3 – Water Hygiene Risk Assessments	South East Consortium	£15m
27 May 2024	Legionella & Water Hygiene Services	B3Living	£300k
9 Jan 2024	SEC Heating and Water Hygiene Framework: Lot 5 - Water Hygiene Remedial Repairs	South East Consortium	£20m
22 Jan 2021	Water Management & Legionella Control Framework.	Home Group	£1m

Contracts are matched to this supplier by company name as published in each notice. If a company appears under slightly different names, some of its contracts may be listed separately. How matching works.