Tetra Tech Environmental Management Limited: UK Public Sector Contracts Won & Awards
Large organisation·Abingdon·South East England·Main market: Construction work for pipelines, communication and power lines, for highways, roads, airfields and railways; flatwork
Official UK PPONPQZW-6836-RPDR
Where they win
5 lot-level observations (4 awarded lots, 80%, plus 1 envelope awards without lot links; pending awards included) · top CPV classes
4523 Construction work for pipelines, communication and power lines, for highways, roads, airfields and railways; flatwork1 observations · 20% · lots7135 Engineering-related scientific and technical services1 observations · 20% · lots7231 Data-processing services1 observations · 20% · lots8511 Hospital and related services1 observations · 20% · lots7162 Analysis services1 observations · 20% · envelope awards| Largest published awards | Authority | Awarded | Term | Published value |
|---|---|---|---|---|
| C1016 NI Water - Collection and Transportation of Water and Wastewater Samples | NI Water and its subsidiaries | — | — | £6,970,910 † |
| Contract | NI Water and its subsidiaries | — | — | £3,451,492 † |
| Lot 1 – Area 1 (North 1 and North 2) | NI Water and its subsidiaries | — | — | £2,937,500 † |
| Specialist Analytical Service for NRW | Natural Resources Wales | — | 5.3 yrs | £1,456,215 † ≈ £273k/yr |
| Lot 2: Specialised Leakage Studies | NI Water and its subsidiaries | — | — | £1,061,100 † |
Where they deliver
ITL1 delivery regions on the notice · 21 of 21 awarded procedures publish one · a procedure with several regions counts in each
Bidding record
Procurement Act 2023 award notices name every bidder · 1 notices name this supplier since 12 Feb 2026 · observed bids, not an estimate
| Notice | Authority | Outcome | Bidders | Published |
|---|---|---|---|---|
| Collection and Transportation of Water and Wastewater Samples | Northern Ireland Water Limited | won | 2 | 12 Feb 2026 |
Source: bids.details[].tenderers on Procurement Act 2023 notices (from 2025). PCR 2015 notices name no bidders, so earlier contests are invisible here. Latest ten notices shown.
Who they sell to
Authorities named on this supplier’s published awards · ranked by distinct procedures · award records explode on framework and DPS panels
- Other public body 100% (5 awards)
| Authority | Procedures | Share | Award records | Last activity |
|---|---|---|---|---|
| Dwr Cymru Welsh Water | 6 | 28.6% | 6 | 6 May 2021 |
| NI Water and its subsidiaries | 4 | 19% | 5 | 5 Apr 2022 |
| Wessex Water Services Ltd | 3 | 14.3% | 5 | 16 Sept 2026 |
| THAMES WATER UTILITIES LIMITED | 2 | 9.5% | 2 | 13 May 2026 |
| United Utilities Water Limited | 2 | 9.5% | 2 | 18 Jun 2026 |
| Natural Resources Wales | 1 | 4.8% | 5 | 18 Dec 2025 |
| Northern Ireland Water Limited | 1 | 4.8% | 1 | 2 Feb 2026 |
| Southern Water Services Limited | 1 | 4.8% | 1 | 12 Sept 2025 |
Share = of the 21 procedures with an award naming this supplier. Last activity = award date, or notice publication when no award date was published.
Contracts ending
Published end dates only · 5 of 28 awards carry one · not a retender forecast
| Contract | Ends | Published value |
|---|---|---|
| Specialist Analytical Service for NRW | 31 Dec 2026 | £1,456,215 |
Recent awards
Latest 28 of 28 award records naming this supplier
Data coverage & method
- Source: Find a Tender OCDS award and contract releases. An award record is one award × this supplier; a procedure can carry many (panels, call-offs).
- Market observations are awarded lots, or one envelope award when the notice publishes no lot links. Region = delivery ITL1 on the notice, not the supplier’s registered address.
- Authority type: official OCDS UK contracting-authority type when the notice publishes one; otherwise a Tenderline name/id class; otherwise “not classified”. Purchasing hubs with no published type stay unclassified.
- Published value attributable to this supplier alone: £23m across single-supplier awards, framework / DPS ceilings excluded. Coverage is partial and the figure is not turnover, so it is not shown as a headline.
- Contract end dates: published on 5 of 28 awards; 1 end within 18 months.
- Never shown: contact details, reliability or payment scores, affiliations, predicted wins.
Identifiers consolidated into this page (9 historical Find a Tender publication identifiers)
Official notices referenced this supplier under these publication identifiers. Alias URLs are not separate pages.
Canonical page id: GB-PPON:PQZW-6836-RPDR