PORVAIR SCIENCES LIMITED
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Cash
£2.5m
+9.9% vs 2024
Net assets
£6.6m
-10.1% lowest in 3 filed years
Employees
67
-8.2% lowest in 3 filed years
Profit before tax
£3.7m
+3.3% highest in 3 filed years
Net assets
3-year trend · vs Basic Materials median
Accounts
3-year trend · Δ = latest vs prior filed period · latest reflected 2025-11-30
| Metric | Trend | 2023-11-30 | 2024-11-30 | 2025-11-30 | Δ vs prior |
|---|---|---|---|---|---|
| Turnover | £14,011,000 | £14,110,000 | £14,302,000 | +1.4% | |
| Operating profit | £3,656,000 | £3,608,000 | £3,716,000 | +3% | |
| Profit before tax | £3,598,000 | £3,538,000 | £3,653,000 | +3.3% | |
| Net profit | £2,834,000 | £2,658,000 | £2,728,000 | +2.6% | |
| Cash | £2,682,000 | £2,304,000 | £2,533,000 | +9.9% | |
| Total assets less current liabilities | £12,087,000 | £10,133,000 | £9,043,000 | -10.8% | |
| Net assets | £8,953,000 | £7,388,000 | £6,642,000 | -10.1% | |
| Equity | £8,953,000 | £7,388,000 | £6,642,000 | -10.1% | |
| Average employees | 78 | 73 | 67 | -8.2% | |
| Wages | £2,693,000 | £2,935,000 | £2,888,000 | -1.6% | |
| Directors' remuneration | — | — | £85,000 | — | |
| Directors' pension contributions | — | — | £5,000 | — | |
| Highest paid director | — | — | £85,000 | — |
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 | 2023-11-30 | 2024-11-30 | 2025-11-30 |
|---|---|---|---|---|
| Operating margin | 26.1% | 25.6% | 26.0% | |
| Net margin | 20.2% | 18.8% | 19.1% | |
| Return on capital employed | 30.2% | 35.6% | 41.1% | |
| Gearing (liabilities / total assets) | 31.1% | 34.7% | 37.0% | |
| Current ratio | 7.57x | 5.06x | 3.95x | |
| Interest cover | 63.03x | 51.54x | 58.98x |
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
- PORVAIR SCIENCES LIMITED 1996-09-17 → present
- PORVAIR FILTRONICS LIMITED 1993-07-20 → 1996-09-17
- POLYFILTRONICS LIMITED 1987-01-14 → 1993-07-20
- SPEYDYNE LIMITED 1986-08-19 → 1987-01-14
Audit & accounting basis
- Accounting basis
- FRS 101
- Reporting scope
- Standalone (parent only)
- Auditor
- RSM UK Audit LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The Directors have made appropriate enquiries and reviewed the current financial position, including all the information presented in its strategic review of the business and the forecast covering at least twelve months from the date of this report ("the going concern assessment period") and have considered foreseeable downsides, stress tests and scenarios. The Directors have a reasonable expectation that the Company has adequate resources to continue in operational existence for the going concern assessment period.”
Significant events
- “The Company made charitable donations of £1,000 (2024: £nil) in the year and no political donations (2024: £nil).”
- “The Company paid an interim dividend of £2.5 million relating to the financial year ending 30 November 2026 on 28 May 2026.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
4 active · 16 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| DOUGLASS, Andrew Stephen | Secretary | 2025-06-06 | — | — |
| JONES, Darren Paul | Director | 2025-05-01 | Dec 1969 | British |
| MILLS, James Alan | Director | 2021-07-23 | Jun 1973 | British |
| OSBORNE, Mark Jonathan | Director | 2021-07-23 | Mar 1975 | British |
Show 16 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| BROOKS, Alan James William | Secretary | 2007-10-01 | 2012-09-27 |
| DAVIS, Stephen Michael | Secretary | 1999-07-20 | 2007-09-30 |
| RODGERS, Simon Jon, Dr | Secretary | 2013-09-04 | 2021-07-23 |
| SYMONDS, Kenneth John | Secretary | — | 1999-07-20 |
| TYLER, Christopher Patric | Secretary | 2021-07-23 | 2025-06-06 |
| TYLER, Christopher | Secretary | 2012-09-27 | 2013-09-04 |
| CASTLEMAN, Anthony Reginald Wayne | Director | 1994-12-13 | 2015-03-31 |
| CHALLIS, Anthony, Professor | Director | — | 1992-09-03 |
| HALLIWELL, Allen, Dr | Director | 1993-02-12 | 1998-11-30 |
| MORAN, Mark | Director | 1999-07-20 | 2004-01-31 |
| MORGAN, John Mansel | Director | — | 1999-07-20 |
| SAUNDERS, Anthony James | Director | — | 1994-12-31 |
| STIRLING, Ian | Director | 2017-04-04 | 2021-07-23 |
| STOCKS, Benjamin Denys William | Director | 1999-07-20 | 2025-04-15 |
| SYMONDS, Kenneth John | Director | — | 1998-12-01 |
| TYLER, Christopher Patric | Director | 2004-10-12 | 2021-07-23 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Porvair Filtration Limited | Corporate entity | Shares 75–100% | 2016-04-06 | Active |
Filing timeline
Last 20 of 173 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-08-17 | AA | accounts | Accounts with accounts type full | |
| 2026-03-31 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-09-02 | AA | accounts | Accounts with accounts type full | |
| 2025-06-06 | TM02 | officers | Termination secretary company with name termination date | |
| 2025-06-06 | AP03 | officers | Appoint person secretary company with name date | |
| 2025-05-12 | AP01 | officers | Appoint person director company with name date | |
| 2025-04-15 | TM01 | officers | Termination director company with name termination date | |
| 2025-04-08 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-09-05 | AA | accounts | Accounts with accounts type full | |
| 2024-03-31 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-06-13 | AA | accounts | Accounts with accounts type full | |
| 2023-04-10 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-08-31 | AA | accounts | Accounts with accounts type full | |
| 2022-05-05 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2021-08-14 | AA | accounts | Accounts with accounts type full | |
| 2021-07-23 | AP01 | officers | Appoint person director company with name date | |
| 2021-07-23 | AP01 | officers | Appoint person director company with name date | |
| 2021-07-23 | TM01 | officers | Termination director company with name termination date | |
| 2021-07-23 | TM01 | officers | Termination director company with name termination date | |
| 2021-07-23 | TM02 | officers | Termination secretary company with name termination date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 3
- Capital events
- 0
- Officers appointed
- 0
- Officers resigned
- 0
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.