O'BRIEN SECURITY SYSTEMS LIMITED
Company number 05278266 · Active
O'BRIEN SECURITY SYSTEMS LIMITED is a private limited company registered in SWANSEA, United Kingdom, incorporated on 4 Nov 2004. Its registered activity is other construction installation. Its latest published accounts for the period ending 31 Dec 2025 show equity of £984, total assets of £25k. It has filed 7 sets of accounts. Our model estimates a 0.03 % probability that it becomes insolvent within 12 months, 0.2 times the average for active companies (low risk).
Insolvency risk, next 12 months
Higher than 87 % of active companies in the United Kingdom. 0.2× the average annual insolvency rate (0.12 %).
Raises the risk
Lowers the risk
Each factor compares companies in the same group (for example the same age band) with the average. The score is a statistical estimate from public data (model AUC 0.99, trained 8 Nov 2026), not a credit rating. How it works.
Company details
- Company number
- 05278266 · official register
- Status
- Active
- Legal form
- Private Limited Company
- Incorporated
- 4 Nov 2004 (22 years)
- Registered address
- SA2 9BZ SWANSEA
- Postcode area
- Swansea
- Activity
- 43290 Other construction installation
- Industry
- Specialised construction activities
- Accounts overdue
- No
Insolvency and register events
No insolvency or liquidation events on record.
Annual accounts GBP
| Period end | Published | Turnover | Result | Equity | Total assets | Current liabilities | Cash | Employees |
|---|---|---|---|---|---|---|---|---|
| 31 Dec 2025 | 30 Sep 2026 | – | – | £984 | £25k | £23k | – | 5 |
| 31 Dec 2024 | 15 Sep 2025 | – | – | £7,950 | £20k | £11k | – | 5 |
| 31 Dec 2023 | 15 Sep 2024 | – | – | £9,741 | £45k | £36k | – | 5 |
| 31 Dec 2022 | 15 Aug 2023 | – | – | £4,593 | £34k | £31k | – | 5 |
| 31 Dec 2021 | 15 Jun 2022 | – | – | £8,694 | £40k | £30k | – | 5 |
| 31 Dec 2020 | 15 May 2021 | – | – | £25k | £75k | £49k | – | 5 |
| 31 Dec 2019 | 15 Jun 2020 | – | – | £14k | £37k | £22k | – | 5 |
As published. Small companies often file a balance sheet only, so turnover and result can be missing.
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Questions about O'BRIEN SECURITY SYSTEMS LIMITED
What is the company number of O'BRIEN SECURITY SYSTEMS LIMITED?
O'BRIEN SECURITY SYSTEMS LIMITED is registered under company number 05278266 in the official register of United Kingdom. View it at the official register.
Is O'BRIEN SECURITY SYSTEMS LIMITED still active?
Yes. O'BRIEN SECURITY SYSTEMS LIMITED is registered as active (status: Active).
Has O'BRIEN SECURITY SYSTEMS LIMITED gone bankrupt or into insolvency?
No insolvency, bankruptcy or administration is recorded for O'BRIEN SECURITY SYSTEMS LIMITED in the official data.
How likely is O'BRIEN SECURITY SYSTEMS LIMITED to become insolvent?
Our model estimates a 0.03 % probability that O'BRIEN SECURITY SYSTEMS LIMITED becomes insolvent within the next 12 months (low risk). That is higher than 87 % of active companies in the United Kingdom.
When was O'BRIEN SECURITY SYSTEMS LIMITED founded?
O'BRIEN SECURITY SYSTEMS LIMITED was incorporated on 4 Nov 2004.
Where is O'BRIEN SECURITY SYSTEMS LIMITED registered?
O'BRIEN SECURITY SYSTEMS LIMITED's registered address is in SA2 9BZ SWANSEA (Swansea), United Kingdom.
What do the latest accounts of O'BRIEN SECURITY SYSTEMS LIMITED show?
The latest published accounts (period ending 31 Dec 2025) show equity of £984, total assets of £25k, 5 employees.
Data: Companies House – Free Company Data Product, Accounts Data Product, Public Data API (Contains public sector information licensed under the Open Government Licence v3.0.). Last updated 8 Nov 2026.