THORN SECURITY LIMITED
Get an alert when THORN SECURITY LIMITED files next
Leroy will email you the moment a new filing lands at Companies House — one short note per filing, nothing else.
Cash
£229k
-73.3% vs 2024
Net assets
£14m
+10.1% vs 2024
Employees
142
-16% lowest in 3 filed years
Profit before tax
£1.6m
-35.4% lowest in 3 filed years
Net assets
3-year trend · vs Consumer Discretionary median
Accounts
3-year trend · Δ = latest vs prior filed period · latest reflected 2025-09-30
| Metric | Trend | 2023-09-30 | 2024-09-30 | 2025-09-30 | Δ vs prior |
|---|---|---|---|---|---|
| Turnover | £22,982,000 | £19,139,000 | £19,916,000 | +4.1% | |
| Operating profit | £1,918,000 | £1,078,000 | £1,587,000 | +47.2% | |
| Profit before tax | £3,061,000 | £2,454,000 | £1,585,000 | -35.4% | |
| Net profit | £3,061,000 | £2,454,000 | £1,306,000 | -46.8% | |
| Cash | — | £859,000 | £229,000 | -73.3% | |
| Total assets less current liabilities | £46,351,000 | £13,067,000 | £14,248,000 | +9% | |
| Net assets | £46,226,000 | £12,942,000 | £14,248,000 | +10.1% | |
| Equity | £46,226,000 | £12,942,000 | £14,248,000 | +10.1% | |
| Average employees | 208 | 169 | 142 | -16% | |
| Wages | £14,324,000 | £11,212,000 | £11,113,000 | -0.9% | |
| Directors' remuneration | £128,000 | £134,000 | £155,000 | +15.7% |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. The Δ column is the change from the prior filed period as a percentage of |prior|; lines a company doesn't report show —. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-09-30 | 2024-09-30 | 2025-09-30 |
|---|---|---|---|---|
| Operating margin | 8.3% | 5.6% | 8.0% | |
| Net margin | 13.3% | 12.8% | 6.6% | |
| Return on capital employed | 4.1% | 8.2% | 11.1% | |
| Current ratio | 2.55x | 1.40x | 1.46x | |
| Interest cover | 20.85x | 4.99x | 26.45x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Name history
Renamed 3 times since incorporation
- THORN SECURITY LIMITED 1987-04-01 → present
- THORN EMI PROTECH LIMITED 1986-04-25 → 1987-04-01
- THORN EMI FIRE APPLIANCES LIMITED 1984-03-29 → 1986-04-25
- UNIQUE FIRE PROTECTION LIMITED 1962-06-28 → 1984-03-29
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Abridged
- Yes — abridged accounts (limited disclosure)
- Auditor
- PricewaterhouseCoopers
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The financial statements have been prepared on the going concern basis, which the directors believe to be appropriate...Johnson Controls International plc has provided the company with an undertaking that for at least 12 months from the date of approval of these financial statements, it will continue to make available such funds as are needed by the company to settle obligations as they fall due.”
Group structure
- THORN SECURITY LIMITED · parent
- Johnson Controls UK Trustees Ltd 100%
Significant events
- “In February 2026, the company declared a dividend for £7.0 million to the company's sole shareholder, Johnson Controls EMEALA Holdings Limited.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
2 active · 33 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| MEAH, Moosa Farook | Director | 2017-07-03 | Aug 1965 | British |
| STONEHOUSE, Michael | Director | 2025-11-24 | Jul 1973 | British |
Show 33 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| ALPHONSUS, Anton Bernard | Secretary | 2011-02-25 | 2017-03-10 |
| GODFRAY, Terence William | Secretary | 1998-06-05 | 2002-03-20 |
| KEMMANN LANE, Peter James | Secretary | 2005-04-29 | 2007-04-30 |
| NEALE, David | Secretary | 2007-04-24 | 2011-02-25 |
| OCHILTREE, Kim Lesley | Secretary | 2004-07-05 | 2005-04-29 |
| STEWART, Michael Henley | Secretary | 2002-03-20 | 2004-07-05 |
| TANKARD, Christopher Richard | Secretary | 1993-07-31 | 1998-06-05 |
| WAREHAM, Edward Stanley | Secretary | — | 1993-07-31 |
| ALPHONSUS, Anton Bernard | Director | 2015-05-05 | 2017-03-10 |
| AYRE, Mark | Director | 2017-03-10 | 2023-08-18 |
| BENNETT, Louise Victoria, Dr | Director | — | 1993-10-31 |
| BOGGESS, Jerry Reid | Director | 2000-02-18 | 2003-03-12 |
| BOWIE, Andrew | Director | 2013-09-30 | 2017-08-31 |
| BUCKLEY, John Clifford | Director | 1996-07-03 | 2004-07-05 |
| COLES, Alan | Director | — | 1992-03-31 |
| CROOKS, James Broumpton | Director | 1997-09-02 | 1998-05-22 |
| DALE LACE, Ian | Director | 2004-07-05 | 2007-04-30 |
| DAVIES, Karl | Director | 1999-01-28 | 2000-10-20 |
| DOLMAN, Derek John | Director | — | 1993-07-01 |
| GUTIN, Irving | Director | 1996-07-03 | 2000-02-18 |
| HEAD, Gerald Dennis | Director | 1997-02-28 | 2003-12-19 |
| HERZOG, Juergen Michael | Director | 2007-04-24 | 2015-05-05 |
| JONES, Howard Lee | Director | 1993-02-19 | 1996-07-03 |
| LAWRENCE, John Edward | Director | — | 1992-03-31 |
| LEONARD, Peter Charles | Director | 1996-07-03 | 1997-09-02 |
| MATHIESON, Joseph | Director | 1996-08-28 | 1999-01-28 |
| MOUNT, Peter William | Director | — | 1993-05-05 |
| NIXON, John | Director | 1992-03-31 | 1996-07-03 |
| RAINFORTH, Warren Leonard | Director | — | 1992-03-31 |
| ROBERTS, David Edward | Director | 1998-05-21 | 1999-01-28 |
| SHAW, Jennifer | Director | 2023-08-18 | 2025-11-27 |
| STEWART, Michael Henley | Director | 2000-10-17 | 2004-07-05 |
| WESTON, Clive Richard | Director | 2004-07-05 | 2017-03-02 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Johnson Controls International Plc | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2022-11-21 | Active |
| Thorn Security Group Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2016-04-06 | Ceased 2022-11-21 |
Filing timeline
Last 20 of 246 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-07-14 | AA | accounts | Accounts with accounts type full | |
| 2025-12-21 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-11-27 | AP01 | officers | Appoint person director company with name date | |
| 2025-11-27 | TM01 | officers | Termination director company with name termination date | |
| 2025-07-07 | AA | accounts | Accounts with accounts type full | |
| 2024-12-02 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-07-07 | AA | accounts | Accounts with accounts type full | |
| 2023-12-01 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2023-08-24 | AP01 | officers | Appoint person director company with name date | |
| 2023-08-24 | TM01 | officers | Termination director company with name termination date | |
| 2023-07-13 | AA | accounts | Accounts with accounts type full | |
| 2023-03-24 | AD02 | address | Change sail address company with old address new address | |
| 2023-02-06 | PSC02 | persons-with-significant-control | Notification of a person with significant control | |
| 2023-02-06 | PSC07 | persons-with-significant-control | Cessation of a person with significant control | |
| 2022-12-21 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2022-07-07 | AA | accounts | Accounts with accounts type full | |
| 2022-01-18 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-01-18 | AD02 | address | Change sail address company with old address new address | |
| 2021-07-10 | AA | accounts | Accounts with accounts type full | |
| 2021-02-05 | CS01 | confirmation-statement | Confirmation statement with no updates |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 4
- Capital events
- 0
- Officers appointed
- 1
- Officers resigned
- 1
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.