THORNTON TOMASETTI DEFENCE LIMITED
Company number 02390791 · Monitor this company
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Shareholders' funds
£4,934,289
Balance sheet as at 2025-12-31
What it does
The company's principal activity during the year continued to be that of consulting engineers in the fields of civil and structural engineering, applied mechanics and specialising in advanced engineering analysis and computer simulation.
The company's own description, from its latest filed accounts.
Overview
- Company type
- Private Limited Company
- Incorporated
- 1989-05-31
- Employees
- 42 (2025 accounts · was 38 in 2024)
- Registered office
- 2nd Floor 12-16 Clerkenwell Road, London, England, EC1M 5PQ
- Postcode
- EC1M 5PQ
- Capital
- 176,469 GBP
- Accounts category
- Full
Accounts
- Last made up to
- 2025-12-31
- Next due by
- 2027-09-30
- Financial year end
- 31 December
Confirmation statement
- Last statement dated
- 2025-08-20
- Next due by
- 2026-09-03
Nature of business (SIC)
- 71129 Other engineering activities
Officers 6 current · 6 resigned
Contact details
- Website
- thorntontomasetti.com
We apply scientific and engineering principles to solve the world’s challenges — starting with yours.
Previous company names
| Name | Date changed |
|---|---|
| WEIDLINGER ASSOCIATES LIMITED | 2015-10-01 |
Previous registered addresses 5
| Address | Changed on |
|---|---|
| 10-18 UNION STREET, LONDON, SE1 1SZ | 2017-09-29 |
| 12 PLUMTREE COURT, LONDON, EC4A 4HT | 2011-08-01 |
| 1 PARK PLACE, CANARY WHARF, LONDON, E14 4HJ | 1999-08-09 |
| 2 CANARY WHARF, LONDON, E14 9SY | 1991-08-20 |
| 2 CANARY WHARF, LONDON, E14 9SJT | 1989-08-14 |
Among its peers
Top 5%
by shareholders' funds, of 372 similar companies in EC
Among the biggest employers among its local peers (42 staff).
Among the oldest 25% of its local peers, trading since 1989.
No.4 of the largest other engineering activities companies in London →
Competitors London
This company ranks 4 among other engineering activities in London.
The class of 1989
26%
of the 213 companies in this sector incorporated in 1989 are still active today; 72% have since been dissolved.
A fact about the year, not a forecast for this company.