CELLMARK SERVICES LTD
Company number 00694901 · Active · Slough SL1 1EL
CELLMARK SERVICES LTD is an active private limited company (company number 00694901) incorporated on 7 June 1961, registered in Slough. Its registered activity is non-specialised wholesale trade (SIC 46900). Latest small accounts cover the period ending 31 December 2025, showing net assets of £1.01m, with 13 employees on average. Net assets fell 15% on the prior period (£1.19m).
By net assets it sits in the top quarter of 338 comparable companies in Reading (median £870, upper quartile £87k).
Key dates
- Incorporated
- 7 June 1961
- Next accounts due
- 30 September 2027 — in 343 days
- Confirmation statement due
- 21 June 2027 — in 242 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
Activity
- SIC 46900
- Non-specialised wholesale trade
- Accounts type
- Small
- Size band
- Small (Companies Act thresholds)
Financials — 2 periods on record, latest ending 31 December 2025
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2025 | £1.01m | — | £6.28m | £7.04m | — | — | 13 |
| 31 December 2024 | £1.19m | — | £2.34m | £2.51m | — | — | 18 |
- Current ratio
- 1.13
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
Firmoscan score: 68/100 (grade B)
- +10 Positive net assets — Net assets £1,005,737 at 2025-12-31
- +8 Established — Incorporated 1961-06-07 (65 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
No active person with significant control is registered.
- (persons with significant control statement) — · since 31 August 2016
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 Reading
Same activity (non-specialised wholesale trade), closest in incorporation date.
- BAGS DIRECT INTERNATIONAL LIMITED — Reading, inc. Oct 1961
- RANGER INSTRUMENT COMPANY LIMITED(THE) — Basingstoke, inc. May 1963
- FERMOD LIMITED — Poyle, inc. Dec 1964
- BOWAK LIMITED — Theale, inc. Feb 1971
- DAVID JOHN (PAPERS) LIMITED — Slough, inc. Mar 1972
- CHECKPOINT SYSTEMS (UK) LTD. — Newbury, inc. Mar 1949
All companies incorporated on 7 June 1961 · in Jun 1961.
Reminders for CELLMARK SERVICES LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.