Tetra Tech Limited: public contracts won without a rival in United Kingdom: 18 uncontested awards; 5% of its awards; 17 without a competition; 1 single bid.
Assay record ASY-UK-1N1ODAT1FV · Cite as: Assay Systems, “Tetra Tech Limited: public contracts won without a rival in United Kingdom”, https://assay-systems.com/register/uk/uncontested/s/tetra-tech-limited/
Tetra Tech Limited won 18 of its 397 public contract awards in United Kingdom without a rival from 2017-09-24 to 2026-09-30: 17 without a competition and 1 after a competition that drew a single bid. 13 buyers awarded it without a rival, the largest Derby City Council with 4.
An award is uncontested when the buyer had no rival offer to weigh: it was made without a competition (direct award, negotiated procedure without a call for tenders, sole-source or advance-notice contract), or a competition was held and only one bid arrived. Every count below is built award by award from the official notices. Awards to individuals are not included.
Derby City Council gave Tetra Tech Limited 12 awards: 4 without a competition, 0 after a competition with a single bid. First 2020-06-30, latest 2026-08-09.
Ministry of Defence gave Tetra Tech Limited 25 awards: 2 without a competition, 0 after a competition with a single bid. First 2021-05-27, latest 2025-09-02.
Leicester City Council gave Tetra Tech Limited 2 awards: 2 without a competition, 0 after a competition with a single bid. First 2022-11-09, latest 2026-02-06.
Luton Council gave Tetra Tech Limited 3 awards: 1 without a competition, 0 after a competition with a single bid. First 2022-10-25, latest 2026-09-01.
DUE NORTH LIMITED gave Tetra Tech Limited 2 awards: 1 without a competition, 0 after a competition with a single bid. First 2022-07-05, latest 2024-12-11.
Darlington Borough Council gave Tetra Tech Limited 1 award: 1 without a competition, 0 after a competition with a single bid. First 2024-09-12, latest 2024-09-12.
Cheshire East Borough Council gave Tetra Tech Limited 1 award: 1 without a competition, 0 after a competition with a single bid. First 2022-02-24, latest 2022-02-24.
EDUCATION AUTHORITY gave Tetra Tech Limited 1 award: 1 without a competition, 0 after a competition with a single bid. First 2023-11-09, latest 2023-11-09.
FCDO Services gave Tetra Tech Limited 84 awards: 1 without a competition, 0 after a competition with a single bid. First 2021-02-28, latest 2026-01-09.
Herefordshire Council gave Tetra Tech Limited 1 award: 0 without a competition, 1 after a competition with a single bid. First 2024-12-11, latest 2024-12-11.
Homes England (the name adopted by the Homes and Communities Agency) gave Tetra Tech Limited 44 awards: 1 without a competition, 0 after a competition with a single bid. First 2017-09-24, latest 2026-09-30.
Leeds Teaching Hospitals NHS Trust gave Tetra Tech Limited 1 award: 1 without a competition, 0 after a competition with a single bid. First 2026-06-29, latest 2026-06-29.
National Highways Limited gave Tetra Tech Limited 12 awards: 1 without a competition, 0 after a competition with a single bid. First 2021-03-24, latest 2026-08-04.
| Date | Buyer | How | Stated reason |
|---|---|---|---|
| 2026-09-01 | Luton Council 1 | No competition Direct award | — |
| 2026-08-09 | DERBY CITY COUNCIL ocds-b5fd17-af1c5f9f-3749-4349-a269-16b47c9e871c-1 | No competition Other - Direct Award via Framework | — |
| 2026-06-29 | Leeds Teaching Hospitals NHS Trust 1 | No competition Below threshold - without competition | — |
| 2026-06-16 | National Highways Limited 1 | No competition Below threshold - without competition | — |
| 2026-02-06 | Leicester City Council ocds-b5fd17-c4a297c8-b6bd-47e6-86a8-85187d396656-1 | No competition Direct award | — |
| 2025-09-26 | FCDO Services 1 | No competition Below threshold - without competition | — |
Every uncontested award in United Kingdom · All countries
Source: Find a Tender Service and Contracts Finder, Cabinet Office, in the Open Contracting Data Standard (data.open-contracting.org), Open Government Licence v3.0; an award is counted once where both services publish it. Awards are matched to their buyer and supplier as published. Values in these notices often state a framework ceiling rather than a contract amount, so awards are counted, not summed. Updated 17 October 2026.