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Company number
02390791

THORNTON TOMASETTI DEFENCE LIMITED

Active
✓ Active company on the official register. Next accounts due 30 September 2027.

Company details

London, England Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
THORNTON TOMASETTI DEFENCE LIMITED
Company number
02390791
Registered office
2ND FLOOR, 12-16 CLERKENWELL ROAD, LONDON, EC1M 5PQ, ENGLAND · 9 other companies at this postcode
Company type
Private Limited Company
Incorporated on
31 May 1989
Status
Active
Age
37 years
Previous names
WEIDLINGER ASSOCIATES LIMITED (to 01 Oct 2015)
Nature of business (SIC)
71129 — Other engineering activities
Accounts — next due
30 Sept 2027
Accounts — last made up to
31 Dec 2025
Confirmation statement — next due
03 Sept 2026
Confirmation statement — last
20 Aug 2025

What the register says

Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.

Companies House register snapshot, read 02/09/2026.

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
01/10/2015 Registered name changed WEIDLINGER ASSOCIATES LIMITED THORNTON TOMASETTI DEFENCE LIMITED

Financial highlights

Parsed from the filed statutory accounts (£ thousands, except employees)

Source: Companies House bulk data filed accounts (iXBRL)
Metric FY2024FY2023
Total assets less current liabilities 4,016
▲ 26.9%
3,165
Net assets 3,879
▲ 26.8%
3,060
Employees (avg) 38
▲ 2.7%
37

Documents for THORNTON TOMASETTI DEFENCE LIMITED

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Company extract£1.99

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Financial statements£3.99

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Ownership report£3.99

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Data protection register

Registered with the Information Commissioner's Office as a data protection fee payer.

Thornton Tomasetti Defence Limited — EC1M 5PQ
Tier 1 · renews 08/02/2027
ICO entry

The ICO publishes no company number, so this is matched on the registered name and confirmed by the postcode. Check the ICO entry before relying on it.

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Frequently asked questions

What is the company number of THORNTON TOMASETTI DEFENCE LIMITED?
According to the official registry, the company number of THORNTON TOMASETTI DEFENCE LIMITED is 02390791.
Where is THORNTON TOMASETTI DEFENCE LIMITED registered?
The registered office is 2ND FLOOR, 12-16 CLERKENWELL ROAD, LONDON, EC1M 5PQ, ENGLAND.
What is the SIC code of THORNTON TOMASETTI DEFENCE LIMITED?
The nature of business is recorded under SIC code 71129 — Other engineering activities.
When are the next accounts of THORNTON TOMASETTI DEFENCE LIMITED due?
The next annual accounts are due by 30 September 2027, and the last accounts were made up to 31 December 2025.

About THORNTON TOMASETTI DEFENCE LIMITED (02390791)

THORNTON TOMASETTI DEFENCE LIMITED is a private limited company incorporated on 31 May 1989 and registered in the United Kingdom under company number 02390791. Its registered office is at 2ND FLOOR, 12-16 CLERKENWELL ROAD, LONDON, EC1M 5PQ, ENGLAND. The recorded nature of business is other engineering activities (SIC 71129). The company is currently active , with statutory accounts last made up to 31 December 2025. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

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