£1.02m
−22%vs Dec 2023Active01240006Private limited companyBury St Edmunds
RUBICON COMPUTER SYSTEMS LIMITED
Significant control: Malcolm David Sleet Deceased (75–100%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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01
Summary
RUBICON COMPUTER SYSTEMS LIMITED is an active private limited company (company number 01240006) incorporated on 9 January 1976, registered in Bury St Edmunds. Its registered activity is business and domestic software development (SIC 62012). Latest small accounts cover the period ending 31 December 2024, showing net assets of £1.02m and cash of £305k, with 20 employees on average. Net assets fell 22% on the prior period (£1.30m).
Peer position · net assets
By net assets it sits in the top quarter of 6,222 comparable companies in Other (median £1,000, upper quartile £28k).
02
Ownership and control
- Mr Malcolm David Sleet Deceased
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 9 January 197650 yrs ago
- Next accounts due
- 30 September 202623 days overdue
- Confirmation statement due
- 23 January 2027in 92 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 62012
- Business and domestic software development
- Accounts type
- Total Exemption Full
- Size band
- SmallCompanies Act thresholds
05
Financials
£305k
−58%vs Dec 2023Not reported
20
No changevs Dec 2023| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2024 | £1.02m | £305k | £200k | £148k | — | — | 20 |
| 31 December 2023 | £1.30m | £718k | £226k | £310k | — | — | 20 |
Current ratio3.41Current assets ÷ creditors within one year
Cash per employee£15kCash ÷ average employees
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets above zeroNet assets £1,018,955 at 31 December 2024
- Current assets at least 1.5× creditors within one yearCurrent ratio 3.41
- Cash at bank of £50,000 or moreCash £305,058
- Incorporated five or more years agoIncorporated 9 January 1976
- Accounts past their due dateDue 30 September 2026
Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.
07
Timeline
- Confirmation statement duein 92 days
- Next accounts due23 days overdue
- Accounts period endNet assets £1.02m · small accounts
- Accounts period endNet assets £1.30m · small accounts
- Incorporated
08
Similar companies in the UK
- INTERNATIONAL FACILITIES & PROPERTY INFORMATION LIMITEDBattle · inc. Apr 1976
- WESTWON LEASING LIMITEDHigh Wycombe · inc. Jun 1976
- ESRI (UK) LIMITEDAylesbury · inc. Nov 1976
- COMPUCORP LIMITEDHemel Hempstead · inc. Mar 1977
- COMPUTER AND DESIGN SERVICES LIMITEDBroadstone · inc. Feb 1974
- WELCOM SOFTWARE LIMITEDHarrogate · inc. Aug 1978
All companies incorporated on 9 January 1976 · in Jan 1976.
09
Reminders for RUBICON COMPUTER SYSTEMS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.