Filing status
- Accounts due
- 30 June 2027
- Last accounts
- 28 September 2025
- Conf. stmt due
- 4 August 2027
- Last conf. stmt
- 21 July 2026
Tetra Tech Group Limited
- Incorporated
- 16 May 2008 (18 years)
- Previously known as
- Wyg Group Limited (until 16 December 2020)This list may be incomplete. See all names on Companies House
- Industry
- Activities of head offices (70100)
- Accounts type
- Full
- Region
- Yorkshire
- Address
- 3 Sovereign SquareSovereign StreetLeedsLS1 4ER
Charges
- Total
- 7
- Outstanding
- 0
- Part satisfied
- 0
- Satisfied
- 7
Officers 4 active
Officer details are public data from the Companies House register.
Director · Appointed 14 April 2025
British
Born November 1964
Murdoch, Andrew
Secretary · Appointed 11 October 2023
Director · Appointed 15 January 2020
American
Born August 1959 (67)
Director · Appointed 21 March 2019
British
Born May 1969 (57)
Officer history (17 former)
14 April 2025
11 October 2023
Appointed Murdoch, Andrew as Secretary
11 October 2023
Resigned Hopson, Preston as Secretary
4 March 2020
15 January 2020
7 January 2020
Appointed Hopson, Preston as Secretary
31 October 2019
Resigned Whitworth, Benjamin Warwick as Secretary
21 March 2019
25 February 2019
12 June 2017
9 June 2017
7 June 2016
7 June 2016
31 August 2015
5 December 2011
2 December 2011
3 May 2011
Appointed Whitworth, Benjamin Warwick as Secretary
4 March 2011
Resigned Zukowski, Elizabeth Lina as Director
15 October 2010
30 June 2010
3 August 2009
26 June 2009
14 April 2009
10 February 2009
6 January 2009
1 January 2009
5 November 2008
5 November 2008
5 November 2008
1 July 2008
Appointed Zukowski, Elizabeth Lina as Director
1 July 2008
1 July 2008
1 July 2008
1 July 2008
16 May 2008
16 May 2008
16 May 2008
16 May 2008
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 6 April 2016
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Private Limited Company
Reg. no. 01869543
Group structure 31 shown
Ownership group derived from the Companies House PSC register
R P S Group Limited Owns 75–100% of shares
Ecl Group Limited Owns 75–100% of shares
Exploration Consultants Limited Owns 75–100% of shares
Tetra Tech Consulting Limited Owns 75–100% of shares
RPS Ireland Limited Owns 75–100% of shares
Tetra Tech Occupational Health Limited Owns 75–100% of shares
Tetra Tech Environmental Management Limited Owns 75–100% of shares
Tetra Tech RPS Energy Consultants Limited Owns 75–100% of shares
Tetra Tech RPS Energy Limited Owns 75–100% of shares
Tetra Tech Europe Executive Services Limited Owns 75–100% of shares
Tetra Tech UK Consulting Group Limited Owns 75–100% of shares
Tetra Tech Group Limited This company Owns 75–100% of shares
Tetra Tech Environment Planning Transport Limited Owns 75–100% of shares
Tetra Tech Limited Owns 75–100% of shares
Tetra Tech Management Services Limited Owns 75–100% of shares
Tetra Tech UK Limited Owns 75–100% of shares
Coffey Geotechnics Limited Owns 75–100% of shares
Hoare Lea LLP Holds 75–100% of voting rights
Hoare Lea Holdings Limited Owns 75–100% of shares
Ndy Consulting Limited Owns 75–100% of shares
Piteau Associates UK Limited Owns 75–100% of shares
Tetra Tech International Development Europe Limited Owns 75–100% of shares
Tetra Tech International Development Limited Owns 75–100% of shares
Tetra Tech International Development Projects Limited Owns 75–100% of shares
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 31 July 2026 | Confirmation statement with updates | 21 July 2026 | ||
| 6 July 2026 | Full accounts | 28 September 2025 | ||
| 14 May 2026 | Satisfaction of a charge in full | |||
| 5 August 2025 | Confirmation statement with updates | 21 July 2025 | ||
| 30 June 2025 | Full accounts | 29 September 2024 |
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