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Tetra Tech Limited

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Official record Companies House · updated 27th September 2026 · Sources

Network

The large node is Tetra Tech Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 63

  1. Mark Edward Jackson 2019-2020 Director View profile
  2. Jeanne Carroll Townend 2016-2018 Director View profile
  3. Timothy Arthur Holden 2014-2016 Director View profile
  4. Glen Thorn 2012-2013 Director View profile
  5. Benjamin Warwick Whitworth 2011-2019 Director View profile
  6. Richard Anthony Allen 2010-2012 Director View profile
  7. David Michael Kershaw 2010-2012 Director View profile
  8. David James Laurens Crichton Miller 2010-2010 Director View profile
  9. Graham Dudley Olver 2009-2014 Director View profile
  10. David Charles Wilton 2009-2010 Director View profile
  11. John William Jenkins 2009-2009 Director View profile
  12. Paul Christopher Hamer 2008-2010 Director View profile
  13. Lawrence John Haynes 2007-2009 Director View profile
  14. Professor Hanif Mohamed Kara 2006-2008 Director View profile
  15. Albert Olumuyiwa Williamson Taylor 2006-2008 Director View profile
  16. Robin William Adams 2006-2008 Director View profile
  17. Noel Geoffrey Lax 2006-2012 Director View profile
  18. Paul Andrew Marshall 2006-2009 Director View profile
  19. Richard Anthony Fuller 2006-2008 Director View profile
  20. Simon Martin 2006-2008 Director View profile
  21. Andrew Ellingworth 2006-2007 Director View profile
  22. Richard James Coackley 2006-2009 Director View profile
  23. Elizabeth Lina Zukowski 2005-2008 Director View profile
  24. Jonathan Grant Rogers 2005-2008 Director View profile
  25. David Charles Taylor 2004-2006 Director View profile
  26. Andrew Dodds 2004-2008 Director View profile
  27. Philip David Jones 2004-2009 Director View profile
  28. Neil Thomson 2004-2007 Director View profile
  29. James Alexander Scott 2004-2008 Director View profile
  30. Peter Hartley Kiernan 2004-2008 Director View profile
  31. John David Whittaker 2004-2008 Director View profile
  32. Clive Drummond Anderson 2003-2007 Director View profile
  33. Richard Timothy Hare 2003-2012 Director View profile
  34. Keith Robert Addison 2002-2008 Director View profile
  35. John Vincent Deasy 2002-2008 Director View profile
  36. Robert Emilion Slota 2002-2008 Director View profile
  37. Clive Lee Morris 2002-2005 Director View profile
  38. Richard George Mccaffrey 2000-2008 Director View profile
  39. Michael John Procter 2000-2008 Director View profile
  40. Barrington Jeffrey Kerwin Butler 1999-2002 Director View profile
  41. Terence Benson Wilson 1999-2004 Director View profile
  42. Philip Charles George Downie 1999-2004 Director View profile
  43. Kenneth Nisbet Archibald 1998-2004 Director View profile
  44. Douglas Moncrieff Ford 1998-2008 Director View profile
  45. Terry Richard Everall 1998-2008 Director View profile
  46. John Martin Rivett 1997-2000 Director View profile
  47. Michael Leonard Taylor 1997-2007 Director View profile
  48. Michael John Dean 1997-2008 Director View profile
  49. Michael John Whitwell 1997-2006 Director View profile
  50. Terence Geoffrey Walsh 1993-1996 Director View profile
  51. John George Purvis 1992-2007 Director View profile
  52. Dr Sidney Keith Winter 1992-2006 Director View profile
  53. David Paul Ellyatt 1992-2007 Director View profile
  54. Walter Leonard Whiting 1992 Director View profile
  55. William Richard Brayson 2003 Director View profile
  56. Alan Kippax 1998 Director View profile
  57. Alan John Higgs 2002 Director View profile
  58. Gareth George Arber 2010-2025 Secretary View profile
  59. Caroline Louise Farbridge 2008-2010 Secretary View profile
  60. Denis Patrick Connery 2004-2008 Secretary View profile
  61. Robert Hartley 1999-2009 Secretary View profile
  62. Ian James Hagues 1997-1999 Secretary View profile
  63. Lawrence Derek Hall 1997 Secretary View profile

Directors and secretaries as filed at Companies House.

Do you help lead this organisation? Set up its network · How it works

Public contracts won

57 contracts · £550,121,266 total

From Contracts Finder and Find a Tender, the UK Government's public procurement notices, under the Open Government Licence v3.0. Matched to this organisation by company number, charity number or exact name and postcode; every figure links to its source notice.

  • CHIC Consultancy Framework 2026-30 Buyer: Communities & Housing Investment Consortium Ltd (CHIC) Value not published 2026-09-04 Source: Find a Tender

    CHIC is seeking to establish a multi-disciplinary consultancy framework that can be accessed by existing and future members of CHIC. The scope and potential lot structure will cover a wide range of built environment related professional con…

    Framework
  • AT1517-Wenlock Fire Consultant Appointment Buyer: Luton Council £235,000 2026-09-01 Source: Find a Tender

    Wenlock Court is a Building with four blocks and it requires a consultant to provide fire strategy and supporting surveys and reports in order to support the change of use to residential accommodation. The consultant will be required to pro…

  • 623652 - A483 NB SB Oswestry - Welsh Border MDP - Ground Investigatio Buyer: National Highways Limited £97,727 2026-08-04 CPV 71351500 Source: Contracts Finder

    Ground Investigation works associated with the A483 Northbound and Southbound Oswestry - Welsh Border MDP scheme (PIN 623652). The works comprise ground investigation fieldwork, associated testing and reporting to support the development of…

  • GI-Tetra Tech Consulting Limited - A30 MP 150 - 168 Sign replacement Buyer: National Highways Limited £147,284 2026-07-09 CPV 71351000 Source: Contracts Finder

    A30 MP 150 - 168 Sign replacement - Ground Investigation

  • Fframwaith Ymgynghori Adeiladu / Construction Consultancy Framework Buyer: Adra (Tai) Cyf £4,000,000 2026-06-17 Source: Find a Tender

    Contract Award Notice for the Fframwaith Ymgynghori Adeiladu / Construction Consultancy Framework

    Framework
  • M42 J6 Bickenhill Structure Scheme - Ground Investigation Works Buyer: National Highways Limited £405,767 2026-06-09 CPV 45111250 Source: Contracts Finder

    Ground Investigation works for the M42 Junction 6 Bickenhill Structure Scheme. The scope includes intrusive and non-intrusive site investigations, drilling, trial pits, laboratory testing, factual reporting and associated geotechnical servi…

  • Provision of Professional Services 2026-2030 Buyer: Westmorland and Furness Council Value not published 2026-06-08 Source: Find a Tender

    The Authority wishes to establish a Closed Framework for the provision of multi-disciplinary professional services across three Lots for Westmorland and Furness Council; Lot 1 Property Lot 2 Civils and Infrastructure Lot 3 Planning, Growt…

    Framework
  • Hanwood Park, Phase 2 Buyer: Homes England (the name adopted by the Homes and Communities Agency) £100,000 2026-05-13 CPV 71000000 Source: Contracts Finder

    End-to-end Technical and Professional Services\r Monitoring surveyor required in support of infrastructure financing

  • NBC PR33 Design Guardian Buyer: DEFRA £1,500,000 2026-05-11 CPV 79930000 Source: Contracts Finder

    Design Guardian for PR33 and other named projects at Weybridge as per contract

  • GI - A303 and M5 7m+ Sign Replacement Tetra Tech Buyer: National Highways Limited £151,846 2026-04-30 CPV 71351500 Source: Contracts Finder

    A303 and M5 7m+ Sign Replacement

  • Management of the asbestos remediation works at Carrant Gardens Buyer: Homes England (the name adopted by the Homes and Communities Agency) £25,000 2026-04-23 CPV 71000000 Source: Contracts Finder

    Management of the asbestos remediation works at Carrant Gardens

  • CPU8119 Water and Energy Innovation Buyer: Nottingham City Council £99,999 2026-03-15 CPV 45000000 Source: Contracts Finder

    Enable the Midlands Net Zero Hub to appoint a qualified consultant to carry out a feasibility study to assess the potential of utilising engineered water management solutions for energy generation.

  • GI - A1M J6-7 NB Geotech Embankment - Tetra Tech Buyer: National Highways Limited £117,164 2026-02-27 CPV 71351000 Source: Contracts Finder

    GI - A1M J6-7 NB Geotech Embankment - Tetra Tech

  • Homes England - Development and Regeneration Technical Services (DaRTS) Framework 18/04/2023 - 17/04/2027 - Monitoring Surveyor - Allithwaite Buyer: Homes England (the name adopted by the Homes and Communities Agency) £35,100 2026-02-12 CPV 71000000 Source: Contracts Finder

    Homes England required to appoint a Monitoring Surveyor (MS) from it's Development and Regeneration Technical Services (DaRTS) Framework. Their work will include providing initial due diligence and ongoing monitoring of residential developm…

  • PAN3431 - Local Transport Grant Project Management Resource Buyer: Leicester City Council £334,425 2026-02-06 CPV 71311210 Source: Contracts Finder

    A direct award to Terta Tech Limited under Lot 5 Highways, Traffic and Transport of the ESPO Framework Agreement 664_25 Consultancy Services for the provision a senior project manager to support the delivery of the Connecting St Margaret's …

  • Homes England - Development and Regeneration Technical Services (DaRTS) Framework 18/04/2023 - 17/04/2027 - Okehampton Buyer: Homes England (the name adopted by the Homes and Communities Agency) £16,100 2026-01-30 CPV 71000000 Source: Contracts Finder

    Homes England required to appoint a Monitoring Surveyor (MS) from it's Development and Regeneration Technical Services (DaRTS) Framework 18/04/2023 - 17/04/2027. Their work will include providing initial due diligence and ongoing monitoring…

  • UK Health Security Campus_H50_Design Delivery Partner Buyer: UK Health Security Agency £5,000,000 2026-01-23 CPV 72224000 Source: Contracts Finder

    The requirement is to provide Multidisciplinary Design Consultancy Services to manage and be responsible for the development of the Multidisciplinary Design Consultant strategy and its implementation for the applicable projects within the P…

  • Homes England - DARTS - Compliance Inspector - Retained Land, Hardingstone Urban Extension Buyer: Homes England (the name adopted by the Homes and Communities Agency) £49,348 2026-01-22 CPV 71000000 Source: Contracts Finder

    Procurement of a Compliance Inspector for monitoring services at Retained Land, Hardingstone Urban Extension

  • Principal Designer Buyer: Met Office £18,066 2026-01-12 CPV 71315000 Source: Contracts Finder

    Principal Designer RM6165

  • 664_25 Consultancy Services Buyer: Espo £320,000,000 2025-11-04 CPV 66170000 Source: Contracts Finder

    FOR A FULL BREAKDOWN ON THE AWARD BY LOT/SUB-LOT, PLEASE REFER TO THE MORE INFORMATION - ATTACHMENTS SECTION OF THIS NOTICE. Additionally, you may also wish to refer to the Framework on the ESPO website (see https://www.espo.org/consulta…

  • WW Inspections 25/26 - Asbestos Buyer: FCDO Services £423,019 2025-10-13 CPV 71630000 Source: Contracts Finder

    Call-off from framework agreement XLY120/133/24TP

  • SCC - KS - RFQ - Ecology Consultant Buyer: SURREY COUNTY COUNCIL £0 2025-10-07 CPV 90700000 Source: Contracts Finder

    Surrey County Council 'the Council' is seeking an experienced Ecology consultant who can bring their expertise in ecological matters for the Council's Natural Environment Team.  The Consultant must be qualified with experience gained for at…

  • Fire Inspection Survey, Management and Advisory Service Buyer: FCDO Services £39,776 2025-10-06 CPV 71630000 Source: Contracts Finder

    Call off from FCDO Services Framework Ref: XLY120/168/23TP

  • Fire Inspection Survey, Management and Advisory Service Buyer: FCDO Services £10,607 2025-10-06 CPV 71630000 Source: Contracts Finder

    Call off from FCDO Services Framework Ref: XLY120/168/23TP

  • Field survey study for White-clawed crayfish Austropotamobius pallipes Buyer: Environment Agency £73,740 2025-09-26 CPV 90700000 Source: Contracts Finder

    Background & Purpose This project aims to establish the presence or absence of the White-clawed crayfish, Signal crayfish, and crayfish plague at 91 sites across England (locations in spreadsheet attached). Surveys will be undertaken…

  • Homes England - Fossetts Farm Compliance Inspector Services Buyer: Homes England (the name adopted by the Homes and Communities Agency) £47,982 2025-09-24 CPV 71000000 Source: Contracts Finder

    Appointment of Compliance Inspector for Fossetts Farm, Southend.

  • Tetra tech -CIR - Fire surveys Buyer: Norfolk and Norwich University Hospitals NHS Foundation Trust £26,043 2025-09-16 CPV 75251110 Source: Contracts Finder

    Fire Engineering Services

  • GI - A46 Evesham Roundabouts Safety & Congestion Ground Investigation Buyer: National Highways £82,537 2025-09-15 CPV 71351500 Source: Contracts Finder

    GI - A46 Evesham Roundabouts Safety & Congestion Ground Investigation

  • Design Team Services DPS - Building Surveying Buyer: FCDO Services £16,040 2025-09-08 CPV 45262660 Source: Contracts Finder

    Call off from FCDO Services DPS Ref: XLY120/035/21 - Lot 5

  • Design Team Services DPS - Building Surveying Buyer: FCDO Services £14,487 2025-09-08 CPV 45262660 Source: Contracts Finder

    Call off from FCDO Services DPS Ref: XLY120/035/21 - Lot 5

  • Fusion21 Construction Consultancy Services Framework Buyer: Fusion21 Members Consortium £175,000,000 2025-09-02 CPV 71000000 Source: Contracts Finder

    This Framework Agreement is for the provision of Construction Consultancy Services for use by current and prospective Members. The Framework is divided into 15 lots: 1. Multidisciplinary Consultancy Services, PM and Lead Consultant 2. Sto…

  • JV North Consultants Framework Buyer: JV North Limited £20,000,000 2025-08-20 CPV 71000000 Source: Contracts Finder

    JV North is seeking to appoint consultants to enter into a framework agreement for the provision of consultancy services, to support construction programmes undertaken by JV North Members

  • GI - M5 MP 90.9, Grove Court Footbridge Buyer: National Highways £93,391 2025-08-18 CPV 71351000 Source: Contracts Finder

    Ground Investigation - M5 MP 90.9, Grove Court Footbridge

  • GI - M5 MP 85.6 Uphill Court Footbridge Buyer: National Highways £61,497 2025-08-18 CPV 71351000 Source: Contracts Finder

    Ground investigation - M5 MP 85.6 Uphill Court Footbridge

  • Design Team Services DPS - Building Surveying Buyer: FCDO Services £20,318 2025-08-13 CPV 71000000 Source: Contracts Finder

    Call off from FCDO Services DPS Ref: XLY120/035/21 - Lot 5

  • Provision of an Authorising Engineer - Water Services Buyer: Nottingham University Hospital NHS Trust £100,000 2025-08-11 CPV 71333000 Source: Contracts Finder

    To ensure Nottingham University Hospitals NHS Trust (The Trust) has measures in place to provide adequate support in managing the risks associated with its water systems (e.g. Legionella bacteria and other water-borne organisms associated w…

  • Design Team Services DPS - Building Surveying Buyer: FCDO Services £507,034 2025-08-05 CPV 71000000 Source: Contracts Finder

    Call off from FCDO Services DPS Ref: XLY120/035/21 - Lot 5

  • Design Team Services DPS - Building Surveying Buyer: FCDO Services £33,393 2025-08-03 CPV 71000000 Source: Contracts Finder

    Call off from FCDO Services DPS Ref: XLY120/035/21 - Lot 5

  • Cost Management Services for Ottawa Residence Refurbishment Project Buyer: Foreign Commonwealth and Development Office £318,632 2025-07-22 CPV 45453100 Source: Contracts Finder

    This contract is for cost management services for the refurbishment of the British High Commissioner's residence in Ottawa, Canada.

  • Provision of TSCoW Buyer: GOVERNMENT PROPERTY AGENCY £239,100 2025-07-15 CPV 71310000 Source: Contracts Finder

    Security Assurance Consultancy: security consultants provide vulnerability assessments and help design and integrate threat mitigation measures into various aspects of a project, from building layouts to material selection.

  • Further Technical Due Diligence, Land at Packmoor Buyer: DUE NORTH LIMITED £98,844 2024-12-11 CPV 71400000 Source: Contracts Finder

    Technical due diligence at Packmoor

  • Development Monitoring and Management Services Framework 2021-2025 - Highbrook Homes (Kirkstone) Limited Buyer: Homes England (the name adopted by the Homes and Communities Agency) £32,000 2024-10-21 CPV 71000000 Source: Contracts Finder

    Monitoring Surveyors services required for 27 amount of units, Land to the South of Wyresdale Road, Lancaster

  • Provision of Construction Professional Services for Government Property Agency ( Buyer: Government Commercial Agency £20,550,000 2023-09-28 CPV 71530000 Source: Contracts Finder

    Provision of Construction Professional Services for Government Property Agency (GPA) Capital Projects

  • Consultancy Services Framework Buyer: South East Consortium Value not published Date not published CPV 71315200 Source: Find a Tender

    The is a framework for the provision of building consultancy services covering construction, programme management, asset management, building design and architectural

    Framework
  • (Lot 10 Modification Notice) South East Wales Technical and Professional Services Buyer: Cardiff Council Value not published Date not published CPV 71530000 Source: Find a Tender
  • BE23/043 Medical Risk Grading LGI, SJUH & CAH Buyer: Leeds Teaching Hospitals NHS Trust Value not published Date not published Source: Find a Tender

    Structural engineering assessments & design for Medical Risk Grading LGI, SJUH & CAH

  • CPU 8189 Highways Transport Project Support Framework Buyer: Nottingham City Council Value not published Date not published Source: Find a Tender

    Nottingham City Council sought tenders from suitably experienced and qualified suppliers for inclusion on a framework for transport project support The Framework will consist of 2 lots. The Authority is appointing 3 Contractors to each lot.…

    Framework
  • 625581 - M42 J6 Bickenhill Structure Scheme - Ground Investigation Works Buyer: National Highways Limited Value not published Date not published Source: Find a Tender

    Ground Investigation works for the M42 Junction 6 Bickenhill Structure Scheme. The scope includes intrusive and non-intrusive site investigations, drilling, trial pits, laboratory testing, factual reporting and associated geotechnical servi…

  • Property, Financial and Development Services Framework Homes England Buyer: Homes England Value not published Date not published Source: Find a Tender

    Homes England is seeking to appoint a national framework agreement of property, financial and development service providers to provide the full range of property, investment and development monitoring related services including: supporting …

    Framework
  • Asbestos Works and Services includes surveying and analytical Buyer: University Of Edinburgh Value not published Date not published CPV 45262660 Source: Find a Tender

    The University of Edinburgh has appointed suppliers to an Estate wide asbestos works and services framework agreement for the provision of asbestos surveys, analytical services, removal and remediation works. This framework is divided into …

    Framework

Showing the most recent 50 of 57.

About

Incorporated
15/11/1985

Ownership

Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.

Group

  1. Tetra Tech Limited is controlled by Tetra Tech Group Limited
    Evidence
    active 75-100% shares · notified 2016-04-06 · source: Companies House PSC register
  2. Tetra Tech Group Limited is controlled by Tetra Tech UK Consulting Group Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  3. Tetra Tech UK Consulting Group Limited is controlled by Tetra Tech UK Holdings Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2019-07-09 · source: Companies House PSC register

Ultimately controlled by Tetra Tech UK Holdings Limited.

74 other companies in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Grants received

3 grants · £15,888 total

360Giving data, published by funders. Coverage only includes funders who publish their grants to 360Giving, so these figures are a floor, not a complete picture.

Top funders

  • Department for Digital, Culture, Media & Sport · £10,791
  • Department for Culture, Media & Sport · £3,597
  • Department for Education · £1,500

Most recent

  • Department for Education £1,5002023-04-01
  • Department for Culture, Media & Sport £3,5972023-02-03
  • Department for Digital, Culture, Media & Sport £10,7912023-02-03
Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

2 directors on the board

10.7y median 10.7y
average tenure
15.8y
longest tenure

Directors past 6 years

First-time vs portfolio directors

Portfolio (2)

Also govern a charity

0
left in the last 12 months

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Professional services 27Construction 2Dormant 2Arts and leisure 1Health and social care 1Property 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
01959704
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 27th September 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

Contains public sector information licensed under the Open Government Licence v3.0. Report an issue · How we handle data