THORNTON TOMASETTI ROMSEY LIMITED
Active Company number 01202925
THORNTON TOMASETTI ROMSEY LIMITED (company number 01202925) is a private limited company incorporated on 7 March 1975. Its status on the Companies House register is Active. Its registered office is in Romsey, SO51 5SW. Its nature of business (SIC 2007) is engineering related scientific and technical consulting activities (71122). Its latest accounts we hold, for the period ending 31 December 2025, report net assets of £8.3m.
Source: Companies House register, as at 29 September 2026. How to cite this page
Information only, not advice. Register details and accounts figures are the company's own filings, shown as filed: CompanyStack does not audit or verify them and accepts no responsibility for decisions made on them. Check important facts at Companies House.
Company Report on THORNTON TOMASETTI ROMSEY LIMITED (PDF)
Page 1 answers whether we would trade with it, and on what terms, by rules stated on the page. The register, the accounts and the people behind the company in one PDF, for your own business use.
- The verdict: would we trade with it, on what terms: a starting credit limit from the latest balance sheet, the risk grade with its reasons, and the checks to make before you sign
- Summary and Health Score: with the reasons behind the score
- Red flags: and what changed in the last 12 months
- Key figures: the accounts to 31 Dec 2025 against the year before
- Filing deadlines: accounts due 30 Sep 2027; confirmation statement due 14 Jan 2027
- Financials ledger: 10 years of filed accounts held (2016–2025)
- Who runs and owns it: 1 PSC
- Shareholders: the current register from the filings: each holder, class, shares and percentage
- Charges: 0 outstanding of 1 charge registered
- Filing history and methodology: with sources and a disclaimer
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Company details
- Company number
- 01202925
- Status
- Active
- Company type
- Private Limited Company
- Incorporated
- 7 March 1975
- Country of origin
- United Kingdom
- Registered office
- MONTFORT LODGE
BOTLEY ROAD
ROMSEY
HAMPSHIRE
SO51 5SW
Nature of business (SIC 2007)
Accounts and confirmation statement
- Accounting reference date
- 31 December
- Accounts category
- SMALL
- Accounts last made up to
- 31 December 2025
- Next accounts due
- 30 September 2027
- Confirmation statement last made up to
- 31 December 2025
- Next confirmation statement due
- 14 January 2027
Financial summary
| Period ending | 31 December 2025 | 31 December 2024 | 31 December 2023 | 31 December 2022 | 31 December 2021 | 31 December 2020 | 31 December 2019 | 31 December 2018 | 31 May 2018 | 31 July 2017 | 31 July 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Profit after tax | £926k | £373k | £646k | £1.2m | £1.2m | £1.0m | £1.1m | £253k | — | — | — |
| Total assets | £10.9m | £8.7m | £8.5m | £7.5m | £6.5m | £5.0m | £3.8m | £2.6m | £2.4m | £1.8m | £1.7m |
| Cash at bank | £670k | £308k | £298k | £343k | £397k | £912k | £439k | £921k | £1.2m | £727k | £790k |
| Current liabilities | £2.6m | £1.3m | £1.5m | £1.1m | £1.5m | £1.2m | £949k | £828k | £884k | £459k | £499k |
| Net current assets | £8.2m | £7.2m | £6.8m | £6.3m | £4.9m | £3.7m | £2.7m | £1.7m | £1.4m | £1.2m | £1.2m |
| Total liabilities | — | — | — | — | — | — | £965k | £855k | £932k | £594k | £587k |
| Net assets | £8.3m | £7.4m | £7.0m | £6.4m | £5.0m | £3.8m | £2.8m | £1.7m | £1.5m | £1.2m | £1.1m |
| Employees | 28 | 29 | 28 | 30 | 26 | 30 | — | — | 21 | 23 | 24 |
—: no figure read from the filing.
Figures read from filings at Companies House (ixbrl) and checked; see how we read them. Small-company accounts often omit turnover and profit. Spotted an error? Tell us.
Control, officers and charges
- Persons with significant control
- 1 current (3 including ceased)
- Corporate controllers
- Thornton Tomasetti Holdings Uk Ltd
- Charges (mortgages)
- 1 registered, 0 outstanding, 1 satisfied
Previous names
- MFD INTERNATIONAL LIMITED (changed 1 September 2022)
Questions about THORNTON TOMASETTI ROMSEY LIMITED
Is THORNTON TOMASETTI ROMSEY LIMITED active?
Yes. The Companies House register shows the company's status as “Active”. (Companies House register, as at 29 September 2026.)
When was THORNTON TOMASETTI ROMSEY LIMITED incorporated?
THORNTON TOMASETTI ROMSEY LIMITED was incorporated on 7 March 1975, according to the Companies House register. (Companies House register, as at 29 September 2026.)
Where is THORNTON TOMASETTI ROMSEY LIMITED registered?
Its registered office is in Romsey, SO51 5SW. (Companies House register, as at 29 September 2026.)
Who controls THORNTON TOMASETTI ROMSEY LIMITED?
The register lists 1 current person with significant control (3 including those who have ceased). Corporate controllers named on the register: Thornton Tomasetti Holdings Uk Ltd. The register shows control, not a list of shareholders. Individuals are named at https://find-and-update.company-information.service.gov.uk/company/01202925/persons-with-significant-control. (Companies House register, as at 29 September 2026.) Who owns a UK limited company: shareholders, PSCs and what the register shows
When are THORNTON TOMASETTI ROMSEY LIMITED's next accounts due?
The register shows the next accounts as due by 30 September 2027. Its latest accounts on the register were made up to 31 December 2025. (Companies House register, as at 29 September 2026.)
Does THORNTON TOMASETTI ROMSEY LIMITED file dormant accounts?
Not in its latest accounts. The register gives their category as “Small company accounts”, made up to 31 December 2025. (Companies House register, as at 29 September 2026.) What a dormant company is and what it must file
Does THORNTON TOMASETTI ROMSEY LIMITED have any charges registered against it?
Yes. The register shows 1 charge: 0 outstanding and 1 satisfied. The charges themselves are listed at https://find-and-update.company-information.service.gov.uk/company/01202925/charges. (Companies House register, as at 29 September 2026.) Company charges: what a mortgage or debenture means and how to read one
Is THORNTON TOMASETTI ROMSEY LIMITED on a sanctions list?
No match for this company's name on the sanctions lists CompanyStack screens (UK, EU, OFAC SDN, OFAC non-SDN, Canada, Australia, New Zealand, Japan, France, US CSL) as at 10 October 2026. A name screen is not legal clearance.
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- KELLOGG BROWN & ROOT LIMITED
- JBA GROUP LIMITED
- GORDON MURRAY TECHNOLOGIES LIMITED
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- SPS TECHNOLOGY HOLDINGS LTD
Related guides
Companies with similar names
Other companies, LLPs and partnerships on the Companies House register whose names begin “THORNTON TOMASETTI”. Each is a separate legal entity from THORNTON TOMASETTI ROMSEY LIMITED: check the registered number before relying on a name. Register data as at 29 September 2026.
- THORNTON TOMASETTI DEFENCE LIMITED (Company, Active, London; 02390791)
- THORNTON TOMASETTI HOLDINGS UK LTD (Company, Active, London; 11338702)
- THORNTON TOMASETTI LIMITED (Company, Active, London; 05888655)
- THORNTON TOMASETTI WARRINGTON LIMITED (Company, Active, Warrington; 04075775)
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Official register entry: THORNTON TOMASETTI ROMSEY LIMITED on Companies House.
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