Supplier · Large organisation

Tetra Tech Limited

Tetra Tech Limited has won 109 UK public contracts worth £2.43bn since 18 Jan 2021. See its competitors in architecture & engineering.

Company 01959704Companies House record Based in Yorkshire and the HumberFirst contract 18 Jan 2021Latest contract 30 Sep 2026

Also published as TetraTech Ltd, Tectra Tech Limited. These are the same company (01959704), so their contracts are counted together.

Contracts: 109
Published value: £2.43bnwhere stated
Without competition: 3%3 contracts
Won by SMEs: 37%of 99 with size known

Contracts won per month, last 24 months 97 contracts · busiest month July 2025

01020

Dec 24
Mar 25
Jun 25
13
Sep 25
Dec 25
Mar 26
Jun 26
Sep 26

Biggest customers

Homes England (the name adopted by the Homes and Communities Agency) 17 contracts · £141m
FCDO Services 15 contracts · £1.6m
National Highways 14 contracts · £1.93m
Fusion21 Members Consortium 9 contracts · £1.09bn
Ministry of Defence 8 contracts · £11.3m
NHS Shared Business Services Limited 3 contracts · £600m
Procurement for Housing 2 contracts · £25m
JV North Limited 2 contracts · £21.5m
Defra 2 contracts · £2.35m
University Of Edinburgh 2 contracts · £1.19m

What they supply

Architecture & engineering 79 contracts · £1.2bn
Construction work 13 contracts · £1bn
Waste, cleaning & environmental 5 contracts · £4.28m
Business services 4 contracts · £2.68m
Public administration & defence services 4 contracts · £25.5m
Real estate services 2 contracts · £37.5m
IT services 1 contract · £5m
Construction materials 1 contract · £150m

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 Tetra Tech Limited wins most of its work. They are not necessarily bidding for the same contracts. See the whole sector.

All contracts won by Tetra Tech Limited

Contracts won by Tetra Tech Limited
Date	Contract	Buyer	Value
30 Sep 2026	NHB - Development and Regeneration Technical Services (DaRTS) Framework - Monitoring Surveyor - Whitecross Homes Ltd, Wadebridge	Homes England (the name adopted by the Homes and Communities Agency)	£18,800
24 Sep 2026	Authorising Engineer - Asbestos	United Lincolnshire Teaching Hospitals NHS Trust	£176k
24 Sep 2026	Authorising Engineer - Asbestos	United Lincolnshire Teaching Hospitals NHS Trust	£87,921
24 Sep 2026	Authorising Engineer - Asbestos	Lincolnshire Community Health Services NHS Trust	£87,921
16 Aug 2026	Transport study	Bassetlaw District Council	£84,000
9 Aug 2026	ENQ1363 - A52 Spondon Interchange Support No competition	Derby City Council	£60,000
4 Aug 2026	623652 - A483 NB SB Oswestry - Welsh Border MDP - Ground Investigatio	National Highways	£97,727
9 Jul 2026	GI-Tetra Tech Consulting Limited - A30 MP 150 - 168 Sign replacement	National Highways	£147k
9 Jun 2026	M42 J6 Bickenhill Structure Scheme - Ground Investigation Works	National Highways	£406k
22 May 2026	Asbestos Works and Services includes surveying and analytical: Surveying and Analytical Services –Central & Med and Vets	University Of Edinburgh	£806k
22 May 2026	Asbestos Works and Services includes surveying and analytical: Surveying and Analytical Services – Kings Buildings & Accommodation Area	University Of Edinburgh	£387k
13 May 2026	Hanwood Park, Phase 2	Homes England (the name adopted by the Homes and Communities Agency)	£100k
11 May 2026	NBC PR33 Design Guardian	Defra	£1.5m
30 Apr 2026	GI - A303 and M5 7m+ Sign Replacement Tetra Tech	National Highways	£152k
23 Apr 2026	Management of the asbestos remediation works at Carrant Gardens	Homes England (the name adopted by the Homes and Communities Agency)	£25,000
17 Mar 2026	TD2367 - Mobility Programme Traffic Signal Support	Derby City Council	£240k
15 Mar 2026	CPU8119 Water and Energy Innovation	Nottingham City Council	£99,999
27 Feb 2026	GI - A1M J6-7 NB Geotech Embankment - Tetra Tech	National Highways	£117k
12 Feb 2026	Homes England - Development and Regeneration Technical Services (DaRTS) Framework 18/04/2023 - 17/04/2027 - Monitoring Surveyor - Allithwaite	Homes England (the name adopted by the Homes and Communities Agency)	£35,100
6 Feb 2026	PAN3431 - Local Transport Grant Project Management Resource No competition	Leicester City Council	£334k
30 Jan 2026	Homes England - Development and Regeneration Technical Services (DaRTS) Framework 18/04/2023 - 17/04/2027 - Okehampton	Homes England (the name adopted by the Homes and Communities Agency)	£16,100
23 Jan 2026	UK Health Security Campus_H50_Design Delivery Partner	UK Health Security Agency	£5m
22 Jan 2026	Homes England - DARTS - Compliance Inspector - Retained Land, Hardingstone Urban Extension	Homes England (the name adopted by the Homes and Communities Agency)	£49,348
12 Jan 2026	Principal Designer	Met Office	£18,066
9 Jan 2026	Whitehill & Bordon Garrison regeneration - Monitoring Services	Homes England (the name adopted by the Homes and Communities Agency)	£74,144
8 Dec 2025	Homes England - Development and Regeneration Technical Services Framework 2023-2027 - Goonhavern, Cornwall	Homes England (the name adopted by the Homes and Communities Agency)	£30,000
17 Nov 2025	HCC Aug 2025 - The Provision of Property Town Planning Consultants Framework - AWARD	Hertfordshire County Council - Resources	£2.5m
3 Nov 2025	Framework Agreement for Modular & Prefabricated Building Solutions and Associated Services: Consultancy Services	NHS Commercial Solutions	£150m
7 Oct 2025	SCC - KS - RFQ - Ecology Consultant	Surrey County Council	—
26 Sep 2025	Field survey study for White-clawed crayfish Austropotamobius pallipes	Environment Agency	£73,740
24 Sep 2025	Homes England - Fossetts Farm Compliance Inspector Services	Homes England (the name adopted by the Homes and Communities Agency)	£47,982
16 Sep 2025	Tetra tech -CIR - Fire surveys	Norfolk and Norwich University Hospitals NHS Foundation Trust	£26,043
15 Sep 2025	GI - A46 Evesham Roundabouts Safety & Congestion Ground Investigation	National Highways	£82,537
9 Sep 2025	Professional Services Framework Contract	Portsmouth Water Limited	£17m
8 Sep 2025	Design Team Services DPS - Building Surveying	FCDO Services	£14,487
8 Sep 2025	Design Team Services DPS - Building Surveying	FCDO Services	£16,040
2 Sep 2025	Fusion21 Construction Consultancy Services Framework	Fusion21 Members Consortium	£175m
20 Aug 2025	JV North Consultants Framework: Purchasers Agent	JV North Limited	£1.5m
20 Aug 2025	JV North Consultants Framework	JV North Limited	£20m
18 Aug 2025	GI - M5 MP 90.9, Grove Court Footbridge	National Highways	£93,391
18 Aug 2025	GI - M5 MP 85.6 Uphill Court Footbridge	National Highways	£61,497
13 Aug 2025	Design Team Services DPS - Building Surveying	FCDO Services	£20,318
11 Aug 2025	Provision of an Authorising Engineer - Water Services	Nottingham University Hospital NHS Trust	£100k
5 Aug 2025	Design Team Services DPS - Building Surveying	FCDO Services	£507k
4 Aug 2025	GI - M42 A45 Free Flow Link & East Way Bridge - East Way Ground Investigation and additional Surveys	National Highways	£226k
3 Aug 2025	Design Team Services DPS - Building Surveying	FCDO Services	£33,393
22 Jul 2025	Cost Management Services for Ottawa Residence Refurbishment Project	Foreign Commonwealth and Development Office	£319k
18 Jul 2025	NCP PR36 B445 Redesign Contract	Defra	£846k
17 Jul 2025	Lot 1 - Homes England DARTS Framework - Asbestos Services, Ripon Barracks	Homes England (the name adopted by the Homes and Communities Agency)	£40,137
15 Jul 2025	TC618 - NORTH WEST CONSTRUCTION HUB – CONSULTANCY FRAMEWORK (2024 TO 2028)	Manchester City Council	£36m

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.