£123k
No changevs Apr 2024Active01554587Private limited companySidcup
MANTISSA LIMITED
Significant control: Patricia Marion Kreitman (25–50%), Roger Andrew Kreitman (25–50%)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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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Registered activity: Business and domestic software development (SIC 62012). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
MANTISSA LIMITED is an active private limited company (company number 01554587) incorporated on 3 April 1981, registered in Sidcup. Its registered activity is business and domestic software development (SIC 62012). Latest small accounts cover the period ending 30 April 2025, showing net assets of £123k and cash of £12k, with 1 employee on average. Net assets were unchanged on the prior period.
Peer position · net assets
By net assets it sits in the top quarter of 4,366 comparable companies in Greater London (median £1,196, upper quartile £29k).
02
Ownership and control
- Mrs Patricia Marion Kreitman
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mr Roger Andrew Kreitman
- owns 25–50% of shares
- holds 25–50% of voting rights
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
- 3 April 198145 yrs ago
- Next accounts due
- 30 January 2027in 98 days
- Confirmation statement due
- 17 April 2027in 175 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
- SIC 62020
- Information technology consultancy activities
- SIC 85590
- Other education n.e.c.
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£12k
+104%vs Apr 2024Not reported
1
No changevs Apr 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 April 2025 | £123k | £12k | — | — | — | — | 1 |
| 30 April 2024 | £123k | £6,059 | — | — | — | — | 1 |
Cash per employee£12kCash ÷ 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 £122,840 at 30 April 2025
- Incorporated five or more years agoIncorporated 3 April 1981
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 175 days
- Next accounts duein 98 days
- Accounts period endNet assets £123k · small accounts
- Accounts period endNet assets £123k · small accounts
- Incorporated
08
Similar companies in Greater London
- BUSINESS SYSTEMS LIMITEDNew Malden · inc. May 1981
- BTS HOLDINGS LIMITEDWallington · inc. Sept 1980
- BRIGHTSOFT DATA SYSTEMS LTDLeatherhead · inc. Aug 1980
- MICROAGE COMPUTER SERVICES LIMITEDMiddlesex · inc. Mar 1982
- COMMANDER SOFTWARE LIMITEDHarrow · inc. Sept 1979
- ASKDAISY DOT NET LIMITEDHarrow · inc. Nov 1982
All companies incorporated on 3 April 1981 · in Apr 1981.
09
Reminders for MANTISSA LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.