£2.00m
−4%vs Sept 2024Active01016456Private limited companyEast Sussex
MAIN SYSTEMS LIMITED
Significant control: Catriona Marie Mainstone (significant control), Steven James Mainstone (significant control)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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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What does Main Systems Limited sell?
Registered activity: Manufacture of other fabricated metal products n.e.c. (SIC 25990). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
MAIN SYSTEMS LIMITED is an active private limited company (company number 01016456) incorporated on 2 July 1971, registered in East Sussex. Its registered activity is manufacture of other fabricated metal products n.e.c. (SIC 25990). Latest small accounts cover the period ending 30 September 2025, showing net assets of £2.00m and cash of £2.18m, with 33 employees on average. Net assets fell 4% on the prior period (£2.10m).
Peer position · net assets
By net assets it sits in the top quarter of 58 comparable companies in Brighton (median £25k, upper quartile £251k).
02
Ownership and control
- Miss Catriona Marie Mainstone
- has significant influence or control
- Mr Steven James Mainstone
- has significant influence or control
- has significant influence or control
- has significant influence or control
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
- 2 July 197155 yrs ago
- Next accounts due
- 30 June 2027in 250 days
- Confirmation statement due
- 16 July 2027in 266 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 25990
- Manufacture of other fabricated metal products n.e.c.
- SIC 27120
- Manufacture of electricity distribution and control apparatus
- Accounts type
- Total Exemption Full
- Size band
- SmallCompanies Act thresholds
05
Financials
£2.18m
+42%vs Sept 2024Not reported
33
−3%vs Sept 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 September 2025 | £2.00m | £2.18m | £826k | — | — | — | 33 |
| 30 September 2024 | £2.10m | £1.53m | £1.11m | — | — | — | 34 |
| 30 September 2023 | — | — | — | — | — | — | — |
Cash per employee£66kCash ÷ 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 £2,003,118 at 30 September 2025
- Cash at bank of £50,000 or moreCash £2,178,036
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 2 July 1971
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 266 days
- Next accounts duein 250 days
- Accounts period endNet assets £2.00m · small accounts
- Accounts period endNet assets £2.10m · small accounts
- Accounts period end
- Incorporated
08
Similar companies in Brighton
- SUSSEX IRON CRAFT (SOUTH EASTERN) LIMITEDEastbourne · inc. Sept 1972
- TOBEL SHEET METAL LIMITEDEast Sussex · inc. Oct 1977
- NUTBERRY LIMITEDEastbourne · inc. Mar 1978
- RON SAMMONS LIMITEDBrighton · inc. Nov 1978
- KUHR ENGINEERING LIMITEDLittlehampton · inc. Mar 1980
- METAL BOX TECHNOLOGY SOLUTIONS LIMITEDNewhaven · inc. May 1981
All companies incorporated on 2 July 1971 · in Jul 1971.
09
Reminders for MAIN SYSTEMS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.