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Declared

CRO company 161581

Tetra Tech Ireland LIMITED

Tetra Tech Ireland LIMITED is company 161581 on the CRO register, with its registered office in Dublin. It is named as a supplier on 59 published public contract awards, from 29 public bodies, most often Health Service Executive (HSE). Awards where it is the only named supplier total €620.9M. The latest is dated 5 October 2026.

Company number
161581
Status
Normal
Type
LTD - Private Company Limited by Shares
Registered
1990-07-11
Registered office
WEST PIER BUSINESS CAMPUS, OLD DUNLEARY ROAD, DUN LAOGHAIRE CO. DUBLIN, DUN LAOGHAIRE,DUBLIN
Latest accounts made up to
2025-09-30
Last annual return
2026-06-30
Next annual return date
2027-06-30
Current name since
2026-03-30
Current type since
2016-01-30
59
Awards
28 awards with a single named supplier
€620,851,620
Sole-supplier value
€2,732,133,518 in total across all named suppliers; each supplier's share is not published
31
Shared awards
0
Declared by politicians

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Timeline

Dated events from every connected source. Declarations are dated to the end of their registration period.

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  • 2019
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TypeAll 63Contract awards 59Company register 4
YearAll2026 162025 12024 52023 52022 42021 82020 92019 52018 22017 22016 42015 11990 1

2019

  1. Contract awardsAward: Professional Geotechnical Engineering ServicesElectricity Supply Board ( ESB ) → AECOM Infrastructure and Environment UK Limited | AGL Consulting | Arup | AtkinsRéalis | Ayesa (formerly ByrneLooby) | Gavin and Doherty Geosolutions | Malachy Walsh and Partners | Tetra Tech Ireland Limited · €2,000,000
    OGP
  2. Contract awardsAward: Framework for Engineer Led Design team for projects up to €5MCork City Council → Denis O' Sullivan and Associates | DJF Engineering Services | Malachy Walsh and Partners | O'Connor Sutton Cronin | PUNCH Consulting Engineers | Tetra Tech Ireland Limited | Walsh Design Group · €237,389
    OGP
  3. Contract awardsAward: Project Management and Design Consultancy Services with Specific Skill in Urban Design and Public Realm Improvement Projects for the Roscommon Town Centre Public Realm Enhancement ProjectRoscommon County Council → Tetra Tech Ireland Limited · €291,137
    OGP
  4. Contract awardsAward: Clonmel Town Urban Design ProjectTipperary County Council → Tetra Tech Ireland Limited · €596,324
    OGP
  5. Contract awardsAward: Professional Services for the Strategic Environmental Assessment and Appropriate Assessment of Ireland’s National Marine Planning Framework (NMPF)Department of Housing Local Government and Heritage → Tetra Tech Ireland Limited · €286,733
    OGP