Website & contact details
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- The site of this company’s group or brand.
Tetra Tech International Development Limited
- Incorporated
- 1 July 1999 (27 years)
- Previously known as
- Coffey International Development Limited (until 4 March 2020)Enterplan Limited (until 29 June 2007)Anpeck Limited (until 17 August 1999)
- Industry
- Management consultancy activities other than financial management (70229)
- Accounts type
- Full
- Region
- South East
- Address
- 1 Northfield RoadReadingBerkshireRG1 8AH
Filing status
- Accounts due
- 30 June 2027
- Last accounts
- 28 September 2025
- Conf. stmt due
- 15 July 2027
- Last conf. stmt
- 1 July 2026
Charges
- Total
- 4
- Outstanding
- 0
- Part satisfied
- 0
- Satisfied
- 4
Officers 5 active
Officer details are public data from the Companies House register.
Director · Appointed 7 July 2026
British
Born May 1969 (57)
Director · Appointed 7 November 2025
British
Born November 1964
Director · Appointed 25 March 2024
British
Born March 1976 (50)
Murdoch, Andrew James
Secretary · Appointed 20 October 2021
Director · Appointed 10 February 2017
American
Born August 1959 (67)
Officer history (33 former)
7 July 2026
7 July 2026
7 November 2025
25 March 2024
22 March 2024
5 October 2023
Resigned Hopson, Preston as Secretary
20 October 2021
Appointed Murdoch, Andrew James as Secretary
1 September 2021
17 March 2021
1 April 2019
Appointed Hopson, Preston as Secretary
31 March 2019
Resigned Lemmon, Richard Alan as Secretary
10 February 2017
10 February 2017
Appointed Lemmon, Richard Alan as Secretary
10 February 2017
Resigned Chu, Ronald Jeffry as Secretary
10 February 2017
10 February 2017
10 February 2017
10 February 2017
10 February 2017
Resigned Black, David Christopher as Director
25 March 2016
Appointed Chu, Ronald Jeffry as Secretary
25 March 2016
25 March 2016
26 February 2016
Resigned Rajagopal, Ranjan as Secretary
18 January 2016
Resigned Waldegrave, Jennifer Ann as Secretary
18 January 2016
10 December 2015
Resigned Woodward, Sinead as Director
27 April 2015
Appointed Rajagopal, Ranjan as Secretary
13 February 2015
Appointed Woodward, Sinead as Director
13 February 2015
13 February 2015
11 August 2014
11 August 2014
Appointed Black, David Christopher as Director
16 August 2012
Resigned Dockley, Oonagh Thomasina as Secretary
28 May 2012
Resigned Wilson, Peter Russell as Director
1 March 2012
Resigned Lee, Julie Anne as Secretary
15 February 2012
Appointed Lee, Julie Anne as Secretary
30 November 2011
1 June 2011
Appointed Dockley, Oonagh Thomasina as Secretary
1 June 2011
Appointed Wilson, Peter Russell as Director
1 June 2011
23 February 2011
28 January 2011
Appointed Waldegrave, Jennifer Ann as Secretary
28 January 2011
Appointed Waldegrave, Jennifer Ann as Secretary
28 January 2011
Resigned Waldegrave, Jennifer Ann as Secretary
28 January 2011
28 January 2011
22 December 2010
22 December 2010
Resigned White, Andrew Charles as Director
22 December 2010
22 December 2010
22 December 2010
22 October 2010
13 February 2009
13 February 2009
2 August 2007
6 July 2007
9 June 2006
9 June 2006
3 March 2006
Appointed White, Andrew Charles as Director
3 March 2006
3 March 2006
3 March 2006
3 April 2000
21 December 1999
21 December 1999
14 July 1999
14 July 1999
14 July 1999
14 July 1999
1 July 1999
1 July 1999
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. 04120956
Former controllers (1)
1 July 2021
Ceased Tetra Tech International Development Europe Limited — Owns 75–100% of shares
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 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 This company Owns 75–100% of shares
Tetra Tech International Development Projects Limited Owns 75–100% of shares
Financials
Balance sheet as at 28 September 2025 · full accounts
- Net Assets
- £9,397,000
- Cash
- £1,251,000
- Turnover
- £29,822,000
- Profit Before Tax
- £458,000
- Employees
- 85
- Debt Ratio
- 44%
- Current Ratio
- 1.9x
- Profit Margin
- 2%
- Return on Equity
- 1%
Trend
Turnover
Balance sheet detail
| 2025 | 2024 | 2023 | 2022 | 2021 | 2019 | |
|---|---|---|---|---|---|---|
| Fixed Assets | £2,618,000 | £3,172,000 | £2,439,000 | £2,828,000 | £3,214,000 | £3,540,000 |
| Current Assets | £14,090,000 | £14,399,000 | £12,304,000 | £12,507,000 | £20,429,000 | £20,526,000 |
| Cash | £1,251,000 | £1,533,000 | £754,000 | £5,423,000 | £2,795,000 | £7,172,000 |
| Creditors (< 1 year) | £7,311,000 | £8,278,000 | £6,159,000 | £5,912,000 | £8,249,000 | £12,163,000 |
| Creditors (> 1 year) | £0 | £6,549,000 | £5,993,000 | |||
| Net Current Assets | £6,779,000 | £6,121,000 | £6,145,000 | £6,595,000 | £12,180,000 | £8,363,000 |
| Net Assets | £9,397,000 | £9,293,000 | £8,584,000 | £9,423,000 | £8,845,000 | £5,910,000 |
| Shareholder Funds | £9,397,000 | £9,293,000 | £8,584,000 | £9,423,000 | £8,845,000 | £5,910,000 |
| Turnover | £29,822,000 | £30,458,000 | £22,935,000 | £28,185,000 | £37,045,000 | £42,748,000 |
| Cost of Sales | £21,227,000 | £25,402,000 | £17,642,000 | £21,613,000 | £30,022,000 | £32,726,000 |
| Gross Profit | £8,595,000 | £5,056,000 | £5,293,000 | £6,572,000 | £7,023,000 | £10,022,000 |
| Admin Expenses | £7,963,000 | £4,379,000 | £6,424,000 | £5,592,000 | £5,958,000 | £7,417,000 |
| Staff Costs | £5,773,000 | |||||
| Operating Profit | £449,000 | £677,000 | (£1,131,000) | £980,000 | £1,065,000 | £2,605,000 |
| Profit Before Tax | £458,000 | £701,000 | (£1,070,000) | £731,000 | £778,000 | £2,389,000 |
| Tax | £390,000 | £91,000 | (£141,000) | £153,000 | £141,000 | £423,000 |
| Profit for Period | £68,000 | £610,000 | (£929,000) | £578,000 | £637,000 | £1,966,000 |
Filings 179
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 7 July 2026 | Termination of appointment of a director | |||
| 7 July 2026 | Appointment of a director | |||
| 1 July 2026 | Confirmation statement with no updates | 1 July 2026 | ||
| 5 March 2026 | Full accounts | 28 September 2025 | ||
| 19 November 2025 | Director's details changed |
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