£112k
+120%vs Mar 2024Active06291609Private limited companyPortsmouth
KEY SYSTEMS UK LTD
Significant control: James Neil Porter (25–50%), Anna Caroline Stainer (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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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What does Key Systems UK Ltd sell?
Registered activity: Security systems service activities (SIC 80200). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
KEY SYSTEMS UK LTD is an active private limited company (company number 06291609) incorporated on 25 June 2007, registered in Portsmouth. Its registered activity is security systems service activities (SIC 80200). Latest small accounts cover the period ending 31 March 2025, showing net assets of £112k and cash of £19k, with 2 employees on average. Net assets rose 120% on the prior period (£51k).
Peer position · net assets
By net assets it sits in the top quarter of 53 comparable companies in Portsmouth (median £13k, upper quartile £60k).
02
Ownership and control
- Mr James Neil Porter
- owns 25–50% of shares
- holds 25–50% of voting rights
- Miss Anna Caroline Stainer
- 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
- 25 June 200719 yrs ago
- Next accounts due
- 31 December 2026in 69 days
- Confirmation statement due
- 9 July 2027in 259 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 80200
- Security systems service activities
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£19k
+22878%vs Mar 2024Not reported
2
No changevs Mar 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2025 | £112k | £19k | £141k | — | — | — | 2 |
| 31 March 2024 | £51k | £82 | £76k | — | — | — | 2 |
Cash per employee£9,421Cash ÷ 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 £112,111 at 31 March 2025
- Net assets up 10% or more on the prior period+119.8% vs prior period
- Incorporated five or more years agoIncorporated 25 June 2007
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 259 days
- Next accounts duein 69 days
- Accounts period endNet assets £112k · small accounts
- Accounts period endNet assets £51k · small accounts
- Incorporated
08
Similar companies in Portsmouth
- INVIEW SYSTEMS LTDWaterlooville · inc. Aug 2007
- ALARMIS SECURITY SYSTEMS LIMITEDFareham · inc. Jul 2006
- CALDERA FIRE & SECURITY LIMITEDFareham · inc. May 2005
- INTEGRATED SECURITY ENGINEERING LIMITEDChichester · inc. Feb 2010
- ACCORD TECHNICAL & SECURITY LIMITEDWaterlooville · inc. Oct 2004
- PMH TRADING LIMITEDRyde · inc. Sept 2010
All companies incorporated on 25 June 2007 · in Jun 2007.
09
Reminders for KEY SYSTEMS UK LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.