EXTENTEST LTD
Company number 12967135 · Active · London EC2A 4NE
EXTENTEST LTD is an active private limited company (company number 12967135) incorporated on 22 October 2020, registered in London. Its registered activity is manufacture of electronic measuring, testing etc. equipment, not for industrial process control (SIC 26511). Latest small accounts cover the period ending 31 October 2025, showing net assets of −£56k and cash of £2,957, with 1 employee on average. Net assets fell 24% on the prior period (−£45k).
By net assets it sits in the bottom quarter of 87 comparable companies in London (median £4,084, upper quartile £79k).
Key dates
- Incorporated
- 22 October 2020
- Next accounts due
- 31 July 2027 — in 285 days
- Confirmation statement due
- 5 November 2026 — in 17 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
Activity
- SIC 26511
- Manufacture of electronic measuring, testing etc. equipment, not for industrial process control
- SIC 62012
- Business and domestic software development
- SIC 70229
- Management consultancy activities other than financial management
- SIC 73110
- Advertising agencies
- Accounts type
- Total Exemption Full
- Size band
- Micro (Companies Act thresholds)
Financials — 2 periods on record, latest ending 31 October 2025
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 October 2025 | −£56k | £2,957 | — | — | — | — | 1 |
| 31 October 2024 | −£45k | £16k | — | — | — | — | 1 |
- Cash per employee
- £2,957
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
Firmoscan score: 43/100 (grade D)
- -15 Negative net assets — Net assets £-56,373 at 2025-10-31
- +8 Established — Incorporated 2020-10-22 (6 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
- (persons with significant control statement) — · since 22 October 2020
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 (manufacture of electronic measuring, testing etc. equipment, not for industrial process control), closest in incorporation date.
- REAL TIME BIDDING SOLUTIONS LTD — London, inc. Nov 2020
- BAKUSTICA LTD — London, inc. Nov 2020
- MAXWELLCONTROLS LIMITED — London, inc. Nov 2020
- KPS UK LEGACY PROJECTS LIMITED — London, inc. Sept 2020
- CAMBRI-TECH LIMITED — London, inc. Jul 2020
- KINSTRUMENT LIMITED — London, inc. Feb 2021
Reminders for EXTENTEST LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.