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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

  1. THORN SECURITY LIMITED 1987-04-01 → present
  2. THORN EMI PROTECH LIMITED 1986-04-25 → 1987-04-01
  3. THORN EMI FIRE APPLIANCES LIMITED 1984-03-29 → 1986-04-25
  4. UNIQUE FIRE PROTECTION LIMITED 1962-06-28 → 1984-03-29

Accounts

2-year trend · latest reflected 2024-09-30

Metric Trend 2023-09-302024-09-30
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 208169
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 2023-09-302024-09-30
Operating margin 8.3%5.6%
Net margin 13.3%12.8%
Return on capital employed 4.1%8.2%
Current ratio 2.55x1.40x
Interest cover 20.85x4.99x

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

  1. THORN SECURITY LIMITED · parent
    1. Johnson Controls UK Trustees Ltd 1% · United Kingdom · Non - Trading

Significant events

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 PDF
2025-11-27 AP01 officers Appoint person director company with name date PDF
2025-11-27 TM01 officers Termination director company with name termination date PDF
2025-07-07 AA accounts Accounts with accounts type full
2024-12-02 CS01 confirmation-statement Confirmation statement with no updates PDF
2024-07-07 AA accounts Accounts with accounts type full
2023-12-01 CS01 confirmation-statement Confirmation statement with updates PDF
2023-08-24 TM01 officers Termination director company with name termination date PDF
2023-08-24 AP01 officers Appoint person director company with name date PDF
2023-07-13 AA accounts Accounts with accounts type full
2023-03-24 AD02 address Change sail address company with old address new address PDF
2023-02-06 PSC02 persons-with-significant-control Notification of a person with significant control PDF
2023-02-06 PSC07 persons-with-significant-control Cessation of a person with significant control PDF
2022-12-21 CS01 confirmation-statement Confirmation statement with updates PDF
2022-07-07 AA accounts Accounts with accounts type full
2022-01-18 CS01 confirmation-statement Confirmation statement with no updates PDF
2022-01-18 AD02 address Change sail address company with old address new address PDF
2021-07-10 AA accounts Accounts with accounts type full
2021-02-05 CS01 confirmation-statement Confirmation statement with no updates PDF
2020-09-23 AA accounts Accounts with accounts type full

Public-record activity

Raw counts from Companies House — last 12–24 months

Filings
4

last 12 months

Capital events
0

last 24 months

Officers appointed
1

last 12 months

Officers resigned
1

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

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

Official Companies House page