Website & contact details
- Group website
- The site of this company’s group or brand.
Thornton Tomasetti Defence Limited
- Incorporated
- 31 May 1989 (37 years)
- Previously known as
- Weidlinger Associates Limited (until 1 October 2015)
- Industry
- Other engineering activities (71129)
- Accounts type
- Full
- Region
- Greater London
- Address
- 2nd Floor 12-16 Clerkenwell RoadLondonEC1M 5PQ
Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 3 September 2027
- Last conf. stmt
- 20 August 2026
Officers 4 active
Officer details are public data from the Companies House register.
Director · Appointed 30 September 2025
British
Born February 1981 (45)
Director · Appointed 30 September 2025
British
Born January 1978 (48)
Director · Appointed 15 July 2022
American
Born September 1970 (56)
American
Born May 1963 (63)
Officer history (9 former)
30 September 2026
Resigned Hall, Corrina Carmel as Secretary
30 September 2025
30 September 2025
Resigned Misselbrook, Nicolas Karl as Director
30 September 2025
30 September 2025
15 July 2022
15 July 2022
15 July 2022
15 July 2022
Appointed Misselbrook, Nicolas Karl as Director
1 April 2011
Appointed Hall, Corrina Carmel as Secretary
1 April 2011
Resigned Misselbrook, Nicolas Karl as Secretary
13 September 2006
Appointed Misselbrook, Nicolas Karl as Secretary
13 September 2006
30 June 1999
30 June 1999
30 June 1999
30 June 1999
Resigned Levy, Matthys Paul as Secretary
30 June 1999
Resigned Kirmani, Minhaj as Director
30 June 1999
Resigned Levy, Matthys Paul as Director
Ownership 0 active
People and entities with significant control, from the Companies House PSC register
The company has declared that it has no person with significant control.
Financials
Balance sheet as at 31 December 2025 · full accounts
- Net Assets
- £4,934,289
- Cash
- £1,131,354
- Profit
- £1,054,802
- Debt Ratio
- 35%
- Current Ratio
- 2.7x
- Return on Equity
- 21%
Trend
Net Assets
Balance sheet detail
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|
| Fixed Assets | £819,457 | £965,371 | £857,458 | £937,378 | £739,138 | £665,389 | £329,179 |
| Current Assets | £6,719,514 | £6,047,427 | £4,858,112 | £4,269,736 | £3,663,918 | £3,580,847 | £3,380,763 |
| Debtors | £5,588,160 | £5,817,768 | £4,801,037 | £4,096,578 | £3,553,401 | £3,113,943 | £3,218,828 |
| Cash | £1,131,354 | £229,659 | £57,075 | £173,158 | £110,517 | £466,904 | £161,935 |
| Creditors (< 1 year) | £2,467,729 | £2,996,358 | £2,550,407 | £2,076,153 | £1,733,764 | £1,619,591 | £1,136,178 |
| Net Current Assets | £4,251,785 | £3,051,069 | £2,307,705 | £2,193,583 | £1,930,154 | £1,961,256 | £2,244,585 |
| Net Assets | £4,934,289 | £3,879,487 | £3,060,142 | £3,022,392 | £2,597,649 | £2,609,587 | £2,556,706 |
| Shareholder Funds | £4,934,289 | £3,879,487 | £3,060,142 | £3,022,392 | £2,597,649 | £2,609,587 | £2,556,706 |
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 1 September 2026 | Confirmation statement with no updates | 20 August 2026 | ||
| 12 August 2026 | Director's details changed |
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