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: €620,851,620
Sole-supplier value: 31
Shared awards: 0
Declared by politicians

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Public contract awards

TED contract award notices (November 2023 onwards) and OGP / eTenders open data. Values are as published, not payments. A shared award names several suppliers, so its value is not theirs alone.

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Published	Contract	Buyer	Published value	Record
2021-11-24	Framework B 2020 Agreement - for Engineering Consultancy Led Design Team Services for the Provision of Road Projects How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Cork County Council	€2,000,000Shared	OGP
2021-11-05	Transport Modelling Framework for transport related projects funded by the National Transport Authority How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	National Transport Authority	€7,000,000Shared	OGP
2021-10-02	Single Party Framework Agreement for National Waste Management Plan for a Circular Economy How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Dublin City Council	€950,000	OGP
2021-07-28	SEA, AA & RES - Strategic Environmental Assessment, Appropriate Assessment, Renewable Energy Strategy and Energy Emissions Balance for Clare County Development Plan 2022-2028 How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Clare County Council	Not stated	OGP
2021-07-14	Consultancy services for Closure Restoration and Aftercare Management Plan (CRAMP) for Inagh Central Waste Management Facility. How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Clare County Council	Not stated	OGP
2021-04-01	Multiple Operator Framework for Design Consultancy Services for Clare County Council for works with a project value grater than €5m. How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Clare County Council	€55,000,000Shared	OGP
2021-03-10	Cork Northern Distributor Road Route Selection How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Cork City Council	€349,033	OGP
2020-09-02	Shannon Town & Environs Flood Relief Scheme, Clare County Council Integrated Engineering and Environmental Consultancy Services How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Clare County Council	€14,885,046	OGP
2020-07-31	Technical Engineering Services How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Transport Infrastructure Ireland (TII)	€80,000,000Shared	OGP
2020-06-11	Historic Closed Landfill Site at Connawarries, Carrick-on-Suir, Co. Tipperary: Detailed Design of Remediation Works & Application for Certificate of Authorisation How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Tipperary County Council	Not stated	OGP
2020-04-26	ITT for Engineering Consultancy Services for Retaining Walls and Site Works at Townparks/Tullymongan Lower, Cavan (1) How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Cavan County Council	€349,000	OGP
2020-03-25	Technical Consultancy Services Framework for implementing Eirspan bridge management on Motorway and National Road bridges How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Transport Infrastructure Ireland (TII)	€10,000,000Shared	OGP
2020-03-02	Petroleum Production Environmental Consultancy How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Department of Climate Energy and the Environment	Not stated	OGP
2020-02-06	Architectural or Civil / Structural Engineering Led Urban Design Team Consultancy Services for the South Dublin Street and Backlands Regeneration Scheme. How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Monaghan County Council	€697,180	OGP
2020-02-02	Framework 2019 for Civil/Structural Engineering Services. How this supplier was matched Published name "Tetra Tech Ireland Limited" equals CRO name "Tetra Tech Ireland LIMITED" (CRO 161581) after normalising legal forms such as Ltd = Limited. No other CRO company has this name. Names can be shared, so compare the address and dates on the CRO record.	Health Service Executive (HSE)	€100,000,000Shared	OGP