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TT

Tetra Tech Limited

Architecture & engineering · Leeds
Large

Tetra Tech Limited is a company that improves the quality of life for people around the world through science, technology, and innovation. They provide innovative solutions to solve complex problems in various sectors.

tetratecheurope.com ↗

Summary from the supplier’s website — unverified

Compare peers
Awarded
£277.8m
Live
127
Buyers
102
12m
£79.4m
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities6
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts127 / 408
  • Top buyers102
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — Tetra Tech LimitedUpdated 13 Jul 2026

At a glance · for buyers and watchdogs

Tetra Tech Limited has won £277.8m across 102 public-sector buyers, with 127 live contracts. No active Companies House risk flags.

Why: top buyer Imperial War Museums at 15% · 39% in Architecture & engineering · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
ActiveCompany status
127 of 408Live contracts
15%Top-buyer concentration
39%Category exposure
0Contract modifications
If you're a buyer:CapabilitiesReferencesKPIComplianceWatchdog?FlagsModificationsConcentrationNews

Social value

Commitments mapped to the Government Social Value Model themes.

⚑ Self-reported
—

No social-value commitments yet

Jobs, skills, environmental, inequality and community commitments appear here once a claimed supplier attributes them to awarded contracts, or once we detect them on the supplier’s website.

ESG & policies vault · 0/5

Key governance & sustainability policies. Published documents link out; missing ones are greyed.

↔ Cross-checked
Net-zero planNot provided✓
Modern slavery statementNot provided✓
EDI policyNot provided✓
Anti-briberyNot provided✓
Data protectionNot provided✓

Capabilities

What this supplier does, where they sit, who they sell to.

◐ From website & notices
Services · 15
One WaterData Center SolutionsDefense ServicesDigital SystemsDisaster and Emergency ManagementEnvironmentFederal ITForeign Assistance ServicesHigh Performance BuildingsMining and Metals ProcessingPFAS ManagementPower and EnergySolid WasteStrategic CommunicationsTransportation
Frameworks & DPS · 6 from notices
  • 2664_22 Property, Building and Infrastructure Advice and Management ServicesEspo · £25.9m
  • Fire Risk and Mitigation Works and ServicesPROCURE PLUS HOLDINGS LIMITED · £17.5m
  • Homes England Development and Regeneration Technical Services Framework 2023-2027Homes England (the name adopted by the Homes and Communities Agency) · £7.4m
  • 500_23 Consultancy for Decarbonisation / Net Zero StrategiesEspo · £4.3m
  • Homes England Development Monitoring and Management Services Framework 2021 - 2025Homes England (the name adopted by the Homes and Communities Agency) · £2.7m
  • Inspection Facilities Integrated Consultant TeamDEFRA · £1.9m

Extracted automatically from tetratecheurope.com on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

Case studies · 1

Delivery stories from the supplier’s website. Clients are not yet cross-checked against award records.

◐ From supplier website
Upgrading Drainage Systems to Increase Portlaoise Wastewater Capacity

Extracted automatically from tetratecheurope.com on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

Buyer references

Named public-sector contacts who have agreed to act as a reference.

✓ Confirmed by buyer
—

No buyer references yet

Public-sector buyers can confirm they'll act as a reference for this supplier. Confirmed references — with the contract they relate to — show here.

Accreditations & memberships

Independently issued. Verification dates cross-checked against issuer registers.

↔ Cross-checked
—

No accreditations recorded

B-Corp, ISO, Cyber Essentials, Living Wage and similar credentials appear here once added by a claimed supplier and cross-checked against the issuing register.

KPI performance

Delivery, budget and satisfaction scores reported quarterly by buyers.

✓ Verified
84

No verified KPI scores yet

Once buyers report contract KPIs — delivery on time, on budget, satisfaction, adoption and accessibility — a weighted grade and breakdown appear here.

Contracts · 127 live · 281 historic

Pulled from Contracts Finder & Find a Tender. Most recent first.

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
CPU 8189 Highways Transport Project Support Framework
Nottingham City Council—20 Jul 2026£300k4 yrsLive
Provision of Professional Services 2026-2030
Westmorland and Furness Council—01 Aug 2026—4 yrsLive
NBC PR33 Design Guardian
DEFRA7993000011 May 2026£1.5m1.5 yrsLive
Property, Financial and Development Services Framework
Homes England—01 Jun 2026£20.0m4 yrspending
GI - A303 and M5 7m+ Sign Replacement Tetra Tech
National Highways7135150030 Apr 2026£152k8 moLive
Management of the asbestos remediation works at Carrant Gardens
Homes England (the name adopted by the Homes and Communities Agency)7100000029 Apr 2026£25k6 moLive
MBC - Invitation to Tender For Earl Street Public Realm Improvement Scheme (Project Team)
Maidstone Borough Council—01 May 2026£135k2 yrsLive
Consultancy Framework at IWM for Multi Disciplinary Services
Imperial War Museums—09 Apr 2026£24.8m3 yrspending
Consultancy Framework at IWM for Specialist Services
Imperial War Museums—09 Apr 2026£4.5m3 yrspending
Consultancy Framework at IWM for Multi Core Services
Imperial War Museums—09 Apr 2026£11.3m3 yrspending
Total live value £89.6m · mean award £681k1–10 of 408

Top buyers · 102 buyers · top 3 = 36%

Share of awarded value. Concentration fires above 40% for any single buyer.

✓ From notices
1
Imperial War Museums
3 contracts
15%
since 2026
2
Espo
4 contracts
11%
since 2021
3
Crown Commercial Service
2 contracts
11%
since 2023
4
Central Housing Investment Consortium Limited ("CHIC")
2 contracts
10%
since 2021
5
Ministry of Defence, DIO,
21 contracts
9%
since 2021
6
Homes England
3 contracts
7%
since 2021
7
PROCURE PLUS HOLDINGS LIMITED
2 contracts
6%
since 2022
8
Homes England (the name adopted by the Homes and Communities Agency)
53 contracts
6%
since 2017
9
Fusion21 Members Consortium
14 contracts
4%
since 2021
10
UK HEALTH AND SECURITY AGENCY
2 contracts
3%
since 2024

Category mix

CPV-division share of last-12m awarded value.

✓ From notices
Architecture & engineering71
39%
IT services72
38%
Business services79
18%
Construction work45
4%
Sewage & refuse90
1%
Other (1)
0%

Geography

Distribution of awarded value by buyer region.

✓ From notices
UK · schematic only
North West47 contracts
27%
London59 contracts
24%
East Midlands23 contracts
15%
North East59 contracts
15%
West Midlands5 contracts
12%
South East142 contracts
4%
Eastern9 contracts
1%
Northern Ireland2 contracts
0%
Yorkshire4 contracts
0%
Wales5 contracts
0%
South West4 contracts
0%
Scotland3 contracts
0%
Region resolved for 84% of awarded value (by buyer postcode); the remainder lacks a usable address.

Peers

Suppliers with overlapping CPVs & buyers (last 24m). Tetra Tech Limited highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
TT
Tetra Tech Limited
No£79.4m—
AE
AECOM LIMITED
No£2.7m9
D&
DREES & SOMMER UK LIMITED
Yes£2.7m3
AR
Arcadis LLP
No£1.6m1
IC
Insight Consulting Services
Yes£1.3m1
LS
LAMBERT SMITH HAMPTON GROUP LIMITED (T/A IKON CONSULTANCY)
No£1.3m1
Compare peers →

Red flags · 0 active

Automated scan of Companies House status, charges and insolvency records.

✓ Verified
✓ Clean. No active risk signals from Companies House status, charges or insolvency records.

Compliance scorecard

Derived from Companies House filings — not a full supplier-assurance check.

↔ Cross-checked
Trading status
Active
Live at Companies House
Annual accounts
Due in -13d
Next due 30 Jun 2026
Confirmation statement
Up to date
Next due 29 Nov 2026
Outstanding charges
0
No charges registered
Insolvency history
None
No insolvency cases registered
Certifications (ISO, Cyber Essentials, Living Wage, B-Corp, modern-slavery) are supplier self-reported and appear once a claimed profile adds them.

Modifications

Variations to awarded contracts logged under Procurement Act 2023 s.74.

✓ From notices
±

No modifications recorded

No published contract variations for this supplier. Modification notices appear here as they are issued under the Procurement Act 2023.

News mentions

UK trade press & nationals, matched to this supplier.

◰

No news mentions found

We haven't matched any recent UK press coverage to this supplier. Mentions appear here automatically as they're published.

Companies House

Live sync — registered details, directors, PSC and SIC codes.

✓ Live sync

Registered details

Company no.
01959704
Status
Active
Type
Private limited
Incorporated
15 Nov 1985
Reg. office
3 Sovereign Square, Sovereign Street, Leeds, LS1 4ER
SIC codes
71129
Last accounts
29 Sept 2024
Next accounts due
30 Jun 2026

Directors & PSC

  • MURDOCH, Andrew James — secretary
    Appointed 14 Apr 2025
  • HATCH, David Craig — director
    Appointed 22 Oct 2020
  • GILLESPIE, Andrew James — director
    Appointed 14 Oct 2010
  • Tetra Tech Group Limited — person with significant control
    ownership of shares 75 to 100 percent

Financial

Filed accounts from Companies House.

↔ From Cos House
£

No financial filings on record

Turnover, profit and headcount appear here once audited or micro-entity accounts are filed at Companies House.

Org tree

Group structure and ownership.

↔ From Cos House
TETRA TECH LIMITED
01959704 · this company

Independent. No parent company or subsidiaries recorded at Companies House for this entity.