Top suppliers
Top suppliers to NI Water and its subsidiaries
Top-five suppliers hold 96% of contract value — a concentrated market.
Procurement categories
What NI Water and its subsidiaries buys
Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.
71530000713100005071000079710000351200000933000045230000452500007934000071630000792100003511000050530000249500008514000079620000384300002445000066510000Recent contracts
Latest NI Water and its subsidiaries contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
Contract
ANDERSON SPRATT GROUP LTD · 2025-09-30
£3.8M
Submersible Sludge/Sewage Pumps
DRILLING PUMPING SUPPLIES LTD · 2025-09-17
£20.0M
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Open opportunities
Open NI Water and its subsidiaries tenders
Tenders currently inviting bids. SMEs can respond via the official tender portal.
T189 - Corporate Healthcare (RFI)
Deadline: 2026-08-13
T150 - Essential Training for Water Industry Workers
Deadline: 2026-08-24
£1.4M
C1175 - Leakage Detection Services
T180 - Servicing, maintenance, supply and installation of spare parts for Disinfection Systems
C1247 – Electrical Inspection, Testing and Repair Services (EITR)
T157 – Aerzen - Provision of Maintenance, Spare parts, Bare shaft/Service exchange units and OEM Support
Request for Information (RFI) - Market interest and capability to procure and process (“Wet Milling”) magnetite to NIW’s required specification for Potable Water Treatment Process
T138 Supply of Metered Electricity
IF009A - Instrumentation, Control and Automation (ICA) Equipment and Spare Parts
Market analysis
Bidding into NI Water and its subsidiaries — what to expect
Supplier concentration and timing patterns that shape SME bid strategy.
96%
Top-5 supplier share
25d
Avg response window
27d
Median response window
—
Avg contract duration
Frequently asked
Common questions about selling to NI Water and its subsidiaries
How much does NI Water and its subsidiaries spend on procurement?
NI Water and its subsidiaries awarded 30 contracts totalling £893.7M between 2023-08-01 and 2026-08-01, working with 19 unique suppliers. Average contract value is £34.4M.
Who are NI Water and its subsidiaries's top suppliers?
The largest suppliers to NI Water and its subsidiaries by total award value are Tetra Tech Consulting NI Ltd, GRAHAM ASSET MANAGEMENT LTD, COBRA SPECIALIST SECURITY SERVICES LTD. The top five suppliers together hold 96% of contract value.
What does NI Water and its subsidiaries buy from suppliers?
NI Water and its subsidiaries's procurement is concentrated in construction consultancy services, consultative engineering and construction services, repair and maintenance services of electrical and mechanical building installations, alongside specialist categories. See the full CPV breakdown below.
How can my business bid for NI Water and its subsidiaries contracts?
NI Water and its subsidiaries publishes open tenders on Find a Tender and Contracts Finder. ENKII matches your business against live tenders, identifies certifications you'll need, and surfaces frameworks worth applying to. Free Readiness Score in 3 minutes.
What's the typical response window for NI Water and its subsidiaries tenders?
NI Water and its subsidiaries typically gives suppliers a median of 27 days to respond (average 25 days). Standard contract duration is around 0 months.
Continue reading
Related ENKII resources
GUIDE
PQQ & Selection Questionnaire — Procurement Act 2023
How UK central-government departments evaluate suppliers at the pre-qualification stage.
GUIDE
Cyber Essentials — for government contracts
Most central-government contracts handling personal data require this certification.
SECTOR
UK Government IT Services
G-Cloud, DOS, Crown Commercial frameworks. Software + consultancy is NI Water and its subsidiaries's largest spend area.
INDEX
All UK public-sector buyers
Browse procurement profiles for every UK government department and major buyer.
Sources & methodology
How this profile is compiled
Analysed by ENKII · Updated 2026-08-01
This profile aggregates public-record procurement data published by the UK Government under the Open Government Licence v3.0. ENKII fetches, deduplicates, and aggregates source records; we don't edit the underlying facts.
Source portals
- · Find a Tender (find-tender.service.gov.uk)
- · Contracts Finder
- · Spend Network
Source records remain subject to Open Government Licence v3.0 attribution. ENKII doesn't warrant accuracy beyond the source portals' own publication.