THORN SECURITY LIMITED
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Next accounts due
2026-06-30 (in 1mo)
Last filed for 2024-09-30
Confirmation statement due
2026-12-04 (in 7mo)
Last made up 2025-11-20
Watchouts
None on the register
Cash
£859K
Latest balance sheet
Net assets
£13M
-72% vs 2023
Employees
169
-18.8% vs 2023
Profit before tax
£2M
-19.8% vs 2023
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
Net assets
2-year trend · vs Consumer Discretionary median
Accounts
2-year trend · latest reflected 2024-09-30
| Metric | Trend | 2023-09-30 | 2024-09-30 |
|---|---|---|---|
| Turnover | £22,982,000 | £19,139,000 | |
| Operating profit | £1,918,000 | £1,078,000 | |
| Profit before tax | £3,061,000 | £2,454,000 | |
| Net profit | £3,061,000 | £2,454,000 | |
| Cash | — | £859,000 | |
| Total assets less current liabilities | £46,351,000 | £13,067,000 | |
| Net assets | £46,226,000 | £12,942,000 | |
| Equity | £46,226,000 | £12,942,000 | |
| Average employees | 208 | 169 | |
| Wages | £14,324,000 | £11,212,000 |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-09-30 | 2024-09-30 |
|---|---|---|---|
| Operating margin | 8.3% | 5.6% | |
| Net margin | 13.3% | 12.8% | |
| Return on capital employed | 4.1% | 8.2% | |
| Current ratio | 2.55x | 1.40x | |
| Interest cover | 20.85x | 4.99x |
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.
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Auditor
- PricewaterhouseCoopers
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The directors have considered the financial position, cash flow and liquidity position of the company and have prepared the financial statements on a going concern basis. The directors have received confirmation that the appropriate entity within the Johnson Controls group intends to support the company for at least one year after the financial statements are signed. The directors are therefore of the opinion that preparing the financial statements on the going concern basis is appropriate.”
Group structure
- THORN SECURITY LIMITED · parent
- Johnson Controls UK Trustees Ltd 1%
Significant events
- “Cybersecurity incident in September 2023 impacting the parent entity's IT infrastructure and applications, which the directors are satisfied the company has been largely unaffected by.”
- “The directors do not foresee any substantial impact on business operations from the ongoing conflict between Russia and Ukraine and the conflict in Israel.”
- “The directors declared a dividend for £35.7 million being the distribution of the company's rights, title and interest in the whole of a loan plus accrued, unpaid interest due and owing to the company by 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 245 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 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 | TM01 | officers | Termination director company with name termination date | |
| 2023-08-24 | AP01 | officers | Appoint person director company with name 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 | |
| 2020-09-23 | AA | accounts | Accounts with accounts type full |
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.
Year-on-year
FY2023 → FY2024 · period ending 2024-09-30 vs 2023-09-30
-
Turnover
-16.7%
£22,982,000 £19,139,000
-
Cash
—
Not reported
-
Net assets
-72%
£46,226,000 £12,942,000
-
Employees
-18.8%
208 169
-
Operating profit
-43.8%
£1,918,000 £1,078,000
-
Profit before tax
-19.8%
£3,061,000 £2,454,000
-
Wages
-21.7%
£14,324,000 £11,212,000
Each % is (latest − prior) ÷ |prior| for the line item as filed. The comparison is only shown when the latest and prior accounts cover broadly equal-length periods — short or long stubs (typical around incorporation or a year-end change) are suppressed rather than misrepresented. Lines a company doesn't report are omitted. About these numbers