CARNOT LTD
Company number 12179870 · Active · London W2 5EU
CARNOT LTD is an active private limited company (company number 12179870) incorporated on 29 August 2019, registered in London. Its registered activity is other research and experimental development on natural sciences and engineering (SIC 72190). Latest small accounts cover the period ending 31 August 2025, showing net assets of £657k and cash of £530k, with 9 employees on average. Net assets rose 822% on the prior period (−£91k).
By net assets it sits in the top quarter of 654 comparable companies in London (median £101, upper quartile £41k).
Key dates
- Incorporated
- 29 August 2019
- Next accounts due
- 31 May 2027 — in 221 days
- Confirmation statement due
- 12 September 2027 — in 325 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
Activity
- SIC 72190
- Other research and experimental development on natural sciences and engineering
- Accounts type
- Total Exemption Full
- Size band
- Micro (Companies Act thresholds)
Financials — 2 periods on record, latest ending 31 August 2025
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 August 2025 | £657k | £530k | £468k | £319k | — | — | 9 |
| 31 August 2024 | −£91k | £157k | £57k | £330k | — | — | 8 |
- Current ratio
- 3.13 — comfortable
- Cash per employee
- £59k
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
Firmoscan score: 88/100 (grade A)
- +10 Positive net assets — Net assets £657,235 at 2025-08-31
- +8 Net assets growing — +822.0% vs prior period
- +8 Comfortable liquidity — Current ratio 3.13
- +4 Cash reserves — Cash £529,741
- +8 Established — Incorporated 2019-08-29 (7 years)
A transparent, rules-based score from filed data only: every point lists its evidence. It is not a credit rating or advice.
Ownership and control
- Mr Archie Frazer Pareti Watts-Farmer — owns 25–50% of shares; holds 25–50% of voting rights; can appoint or remove directors · since 29 August 2019
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.
Similar companies in London
Same activity (other research and experimental development on natural sciences and engineering), closest in incorporation date.
- CUBANE LTD — London, inc. Aug 2019
- AMPX LIMITED — London, inc. Sept 2019
- AMPX HARDWARE LIMITED — London, inc. Sept 2019
- SCIENTIFIC TECHNOLOGIES LIMITED — London, inc. Sept 2019
- QUADRATURE CLIMATE FOUNDATION — London, inc. Sept 2019
- LONDON AERIAL VEHICLE TECHNOLOGIES LTD — London, inc. Sept 2019
All companies incorporated on 29 August 2019 · in Aug 2019.
Reminders for CARNOT LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.