£7,950
−18%vs Dec 2023Active05278266Private limited companySwansea
O'BRIEN SECURITY SYSTEMS LIMITED
Significant control: Gareth Owain O'Brien (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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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What does O'Brien Security Systems Limited sell?
Registered activity: Other construction installation (SIC 43290). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
O'BRIEN SECURITY SYSTEMS LIMITED is an active private limited company (company number 05278266) incorporated on 4 November 2004, registered in Swansea. Its registered activity is other construction installation (SIC 43290). Latest micro accounts cover the period ending 31 December 2024, showing net assets of £7,950, with 5 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 18% on the prior period (£9,741).
Peer position · net assets
By net assets it sits in the upper half of 160 comparable companies in Swansea (median £2,848, upper quartile £25k).
02
Ownership and control
- Mr Gareth Owain O'Brien
- owns 75–100% of shares
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
- 4 November 200421 yrs ago
- Next accounts due
- 30 September 202625 days overdue
- Confirmation statement due
- 18 November 2026in 24 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 43290
- Other construction installation
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
5
No changevs Dec 2023| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2024 | £7,950 | — | — | £11k | — | — | 5 |
| 31 December 2023 | £9,741 | — | — | £36k | — | — | 5 |
Current ratio0.94Current assets ÷ creditors within one year
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
06
Filing and accounts signals
- Net assets above zeroNet assets £7,950 at 31 December 2024
- Current assets below creditors within one yearCurrent ratio 0.94
- Incorporated five or more years agoIncorporated 4 November 2004
- 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 24 days
- Next accounts due25 days overdue
- Accounts period endNet assets £7,950 · micro accounts
- Accounts period endNet assets £9,741 · micro accounts
- Incorporated
08
Similar companies in Swansea
- P & H SERVICES (SOUTH WALES) LIMITEDMilford Haven · inc. Sept 2004
- ASCOT (KITCHEN AND BEDROOMS) LIMITEDPort Talbot · inc. Jun 2005
- J G JONES (KITCHEN INSTALLATIONS) LIMITEDNeath · inc. Mar 2004
- ABZ CARPENTRY LTDSwansea · inc. Feb 2004
- S L J LIMITEDSwansea · inc. Aug 2005
- CLYNE INTERIOR & EXTERIOR DESIGN LIMITEDSwansea · inc. Jan 2006
All companies incorporated on 4 November 2004 · in Nov 2004.
09
Reminders for O'BRIEN SECURITY SYSTEMS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.