FORTRESS INTERLOCKS LIMITED
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Next accounts due
2026-12-31 (in 7mo)
Last filed for 2025-03-31
Confirmation statement due
2026-09-27 (in 4mo)
Last made up 2025-09-13
Watchouts
None on the register
Cash
£4K
-1.1% vs 2024
Net assets
£31M
+14.8% vs 2024
Employees
186
+4.5% vs 2024
Profit before tax
£15M
+5.2% vs 2024
Name history
Renamed 1 time since incorporation
- FORTRESS INTERLOCKS LIMITED 1978-12-31 → present
- PLEXABE LIMITED 1977-05-03 → 1978-12-31
Net assets
2-year trend · vs Industrials median
Accounts
2-year trend · latest reflected 2025-03-31
| Metric | Trend | 2024-03-31 | 2025-03-31 |
|---|---|---|---|
| Turnover | £46,655,075 | £48,272,365 | |
| Operating profit | £14,339,905 | £14,577,059 | |
| Profit before tax | £14,230,180 | £14,963,086 | |
| Net profit | £10,342,166 | £14,539,597 | |
| Cash | £4,030 | £3,986 | |
| Total assets less current liabilities | £28,003,321 | £32,873,266 | |
| Net assets | £27,275,990 | £31,315,587 | |
| Equity | £27,275,990 | £31,315,587 | |
| Average employees | 178 | 186 | |
| Wages | £9,136,557 | £10,886,575 |
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 | 2024-03-31 | 2025-03-31 |
|---|---|---|---|
| Operating margin | 30.7% | 30.2% | |
| Net margin | 22.2% | 30.1% | |
| Return on capital employed | 51.2% | 44.3% | |
| Gearing (liabilities / total assets) | 13.9% | 19.4% | |
| Current ratio | 7.35x | 5.43x | |
| Interest cover | 4217.62x | 492.63x |
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 101
- Reporting scope
- Standalone (parent only)
- Auditor
- PricewaterhouseCoopers LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The Directors have a high level of confidence that despite the current economic uncertainty the Company has access to the necessary liquid resources to meet its liabilities as they fall due and will be able to sustain its business model, strategy and operations and remain solvent for a period of at least twelve months from the date of approval of these financial statements, even in the event of the severe but plausible downside scenario Thus, the Directors believe there is no material uncertainty in the use of the going concern assumption”
Group structure
- FORTRESS INTERLOCKS LIMITED · parent
- Fortress Safety Inc
Significant events
- “In November 2025 the Company incorporated Fortress Safety Inc, a subsidiary based in the USA. The trade and assets of the Company's business based in the USA was then contributed to Fortress safety Inc”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
7 active · 42 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| BELAMINE, Anne-Sophie | Director | 2024-07-01 | Dec 1982 | French |
| BROWITT, Peter Craig | Director | 2022-12-01 | Sep 1975 | British |
| EATON, Julie J. | Director | 2025-10-01 | Nov 1972 | American |
| EVANS, Clare | Director | 2025-04-01 | Oct 1986 | British |
| GODDARD, Wesley James | Director | 2022-01-04 | Jul 1987 | British |
| GUARINI, Jay | Director | 2023-07-01 | Jul 1982 | British |
| JOHNSON, Robert Karl | Director | 2016-10-03 | Feb 1980 | British |
Show 42 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| AMOS, Colin Philip | Secretary | 2000-10-05 | 2006-10-26 |
| BAILEY, Simon | Secretary | 2000-05-01 | 2000-10-05 |
| BENNETT, Stephen Robert | Secretary | 2006-10-26 | 2021-12-03 |
| CLEMMEY, Kenneth Lionel Martin | Secretary | 1996-05-28 | 2000-04-30 |
| MCKERRACHER, Roy | Secretary | 1995-07-28 | 1996-05-28 |
| PAGE, Ruth | Secretary | 2022-07-01 | 2024-08-16 |
| SMITH, Steven James | Secretary | 2021-12-03 | 2023-03-31 |
| TAYLOR, Nicholas Esmond Johnson | Secretary | — | 1995-07-28 |
| AMOS, Colin Philip | Director | 2000-10-05 | 2006-09-30 |
| BAGGOTT, Anthony John | Director | 2001-12-01 | 2018-08-09 |
| BAILEY, Simon | Director | — | 2017-08-11 |
| CLEMMEY, Kenneth Lionel Martin | Director | 1996-05-28 | 2000-04-30 |
| DAKIN, Mike Derek Royston | Director | 2015-06-23 | 2018-03-01 |
| FOYLE, Robert John | Director | 1994-09-26 | 1996-05-03 |
| FRANKLIN, Mark | Director | 2018-02-05 | 2024-03-31 |
| FUDGE, Cheryl | Director | 2023-04-24 | 2025-03-10 |
| FYNES, David Michael Spencer | Director | 1999-10-22 | 2001-02-28 |
| GOLDING, Michael John Chawner | Director | 2001-06-01 | 2009-10-06 |
| HALLOWS, Kirsty Jane | Director | 2019-11-04 | 2021-04-30 |
| HANDY, Clive Malcolm | Director | 1996-04-15 | 1999-06-30 |
| HUDSON, Rachel Lillian | Director | 2022-05-25 | 2023-01-11 |
| JOYNSON, Richard Anthony Paul | Director | 2007-07-02 | 2015-10-30 |
| KALSBEEK, Pieter | Director | 2003-01-01 | 2010-04-21 |
| LAVELLE, Mark Stephen | Director | 2007-04-04 | 2012-04-01 |
| LEAROYD, Michael Philip | Director | — | 1992-11-03 |
| LEWIS, Robert | Director | 2010-03-08 | 2016-03-08 |
| MCDERMOTT, Robert Joseph | Director | 2013-01-01 | 2017-02-24 |
| MCMILLAN, Wendy Juliet | Director | 2018-03-01 | 2021-04-01 |
| MUELLER, Thorsten | Director | 2023-01-26 | 2025-09-30 |
| POLLARD, Stephen Ronald Joseph | Director | — | 1993-10-22 |
| PRESTIDGE, Tim, Dr | Director | 2021-04-01 | 2022-03-17 |
| QUINN, Neil Anthony | Director | 2012-04-01 | 2015-05-14 |
| SHARP, Malcolm | Director | 2009-05-14 | 2022-09-30 |
| SMITH, Joanna Louise | Director | 2015-11-30 | 2022-11-30 |
| SMITH, Steven James | Director | 2017-05-08 | 2023-03-31 |
| STARK, Robert | Director | 2019-04-01 | 2022-07-22 |
| TAYLOR, Charles James Forbes | Director | 1991-12-20 | 1993-10-14 |
| TAYLOR, Nicholas Esmond Johnson | Director | — | 1995-07-28 |
| TRODD, Nigel James Benedict | Director | 2003-08-01 | 2007-04-04 |
| WILLIAMS, Kelly | Director | 2021-09-30 | 2022-01-31 |
| WILLS, Anthony James, Dr | Director | 1998-07-01 | 1998-12-07 |
| YOUNG, Nigel John | Director | — | 2003-08-01 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Halma Plc | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2016-08-17 | Active |
Filing timeline
Last 20 of 205 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-03-21 | AA | accounts | Accounts with accounts type full | |
| 2025-10-03 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-10-03 | TM01 | officers | Termination director company with name termination date | |
| 2025-10-03 | AP01 | officers | Appoint person director company with name date | |
| 2025-05-16 | AP01 | officers | Appoint person director company with name date | |
| 2025-05-16 | AP01 | officers | Appoint person director company with name date | |
| 2025-03-14 | TM01 | officers | Termination director company with name termination date | |
| 2024-12-31 | AA | accounts | Accounts with accounts type full | |
| 2024-10-17 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-09-20 | AP01 | officers | Appoint person director company with name date | |
| 2024-09-20 | TM02 | officers | Termination secretary company with name termination date | |
| 2024-04-26 | TM01 | officers | Termination director company with name termination date | |
| 2023-11-28 | AA | accounts | Accounts with accounts type full | |
| 2023-09-30 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-07-12 | AP01 | officers | Appoint person director company with name date | |
| 2023-05-31 | RP04TM01 | officers | Second filing of director termination with name | |
| 2023-04-24 | TM01 | officers | Termination director company with name termination date | |
| 2023-02-08 | AP01 | officers | Appoint person director company with name date | |
| 2023-01-11 | TM01 | officers | Termination director company with name termination date | |
| 2023-01-11 | TM02 | officers | Termination secretary company with name termination date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 6
- 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
FY2024 → FY2025 · period ending 2025-03-31 vs 2024-03-31
-
Turnover
+3.5%
£46,655,075 £48,272,365
-
Cash
-1.1%
£4,030 £3,986
-
Net assets
+14.8%
£27,275,990 £31,315,587
-
Employees
+4.5%
178 186
-
Operating profit
+1.7%
£14,339,905 £14,577,059
-
Profit before tax
+5.2%
£14,230,180 £14,963,086
-
Wages
+19.2%
£9,136,557 £10,886,575
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