PRIOR SCIENTIFIC INSTRUMENTS LIMITED
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Next accounts due
2026-12-31 (in 7mo)
Last filed for 2025-03-31
Confirmation statement due
2026-06-09 (in 1mo)
Last made up 2025-05-26
Watchouts
None on the register
Cash
£9M
+40.7% vs 2024
Net assets
£19M
+4.3% vs 2024
Employees
128
-5.9% vs 2024
Profit before tax
£1M
-49.2% vs 2024
Net assets
2-year trend · vs Health Care median
Accounts
2-year trend · latest reflected 2025-03-31
| Metric | Trend | 2024-03-31 | 2025-03-31 |
|---|---|---|---|
| Turnover | £23,709,482 | £19,033,854 | |
| Operating profit | £2,769,256 | £1,307,432 | |
| Profit before tax | £2,849,081 | £1,448,314 | |
| Net profit | £2,091,839 | £1,183,469 | |
| Cash | £6,234,017 | £8,771,465 | |
| Total assets less current liabilities | £19,054,058 | £19,667,527 | |
| Net assets | £17,861,415 | £18,633,917 | |
| Equity | £17,861,415 | £18,633,917 | |
| Average employees | 136 | 128 | |
| Wages | £7,053,883 | £6,519,377 |
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 | 11.7% | 6.9% | |
| Net margin | 8.8% | 6.2% | |
| Return on capital employed | 14.5% | 6.6% | |
| Current ratio | 6.15x | 8.39x | |
| Interest cover | 108.11x | 59.02x |
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
- Consolidated group
- Auditor
- MHA
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“Based on these assessments and having regards to the resources available to the entity and group, the Directors have concluded that there is no material uncertainty and that they can continue to adopt the going concern basis in preparing the annual report and accounts.”
Group structure
- PRIOR SCIENTIFIC INSTRUMENTS LIMITED · parent
- James Swift & Son Limited 100%
- Prior Scientific Inc 96.1%
- Prior Scientific Instruments GmbH 100%
- Prior Scientific KK 100%
- Suzhou Prior Precision Instruments Ltd 100%
Significant events
- “Our strategy of continuing the purchasing of components in response to current and expected customer future needs has not been enough to maintain sales growth in the year, as we have come under inflationary, competitive and exchange pressures which have adversely affected profits.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
10 active · 14 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| EUSDEN, Ashley James | Secretary | 2026-04-06 | — | — |
| DUFF, James Andrew | Director | 2026-04-06 | Jun 1990 | British |
| EUSDEN, Ashley James | Director | 2026-04-06 | Jun 1986 | British |
| FIELDING, Fintan Fitzgerald | Director | 2001-12-18 | Jan 1972 | Irish |
| FIELDING, James Finbar Lockyer | Director | 2001-12-18 | Jul 1970 | British |
| FIELDING, Myles John O'Leary | Director | 1996-01-16 | Mar 1969 | Irish |
| FREDA, Thomas | Director | 2007-05-27 | Oct 1960 | American |
| JARVIS, Stuart | Director | 2012-08-01 | Jan 1967 | British |
| LU, Hengzhi | Director | 2023-01-14 | Dec 1985 | Chinese |
| SMITH, Simon John | Director | 2011-04-01 | May 1967 | British |
Show 14 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| CHANDRASEGARAM, Retnasingham Daniel | Secretary | 2002-12-05 | 2008-12-31 |
| FIELDING, Fintan Fitzgerald | Secretary | 1993-09-27 | 2003-04-25 |
| OSLER, John Murray | Secretary | — | 1993-09-27 |
| SMITH, Simon John | Secretary | 2009-01-01 | 2026-04-21 |
| BOOTH, Peter Keith, Dr | Director | 1999-04-01 | 2011-06-28 |
| BUTTARS, Michael Anthony John | Director | — | 2010-04-09 |
| CHANDRASEGARAM, Retnasingham Daniel | Director | — | 2008-12-31 |
| DREXEL, R Patrick | Director | 1999-04-01 | 2009-07-15 |
| EVANS, Gordon | Director | — | 2010-03-31 |
| FIELDING, Douglas James | Director | — | 1999-12-01 |
| FIELDING, Fintan Fitzgerald | Director | 2001-12-18 | 2002-12-05 |
| HULME, John Robert | Director | — | 1992-12-31 |
| LANGFORD, Barry Robert | Director | 2002-01-01 | 2007-11-20 |
| MAINTZ, Monika Maria, Dr | Director | 2008-04-07 | 2015-09-30 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Mr Myles John O'Leary Fielding | Individual | Shares 25–50%, Voting 25–50% | 2016-04-06 | Active |
| Mr James Fielding | Individual | Shares 25–50%, Voting 25–50% | 2016-04-06 | Active |
| Mr Fintan Fitzgerald Fielding | Individual | Shares 25–50%, Voting 25–50% | 2016-04-06 | Active |
Filing timeline
Last 20 of 184 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-04-21 | TM02 | officers | Termination secretary company with name termination date | |
| 2026-04-17 | AP01 | officers | Appoint person director company with name date | |
| 2026-04-16 | CH01 | officers | Change person director company with change date | |
| 2026-04-16 | CH01 | officers | Change person director company with change date | |
| 2026-04-16 | CH01 | officers | Change person director company with change date | |
| 2026-04-14 | AP03 | officers | Appoint person secretary company with name date | |
| 2026-04-14 | AP01 | officers | Appoint person director company with name date | |
| 2025-12-09 | AA | accounts | Accounts with accounts type group | |
| 2025-06-03 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-05-01 | CH01 | officers | Change person director company with change date | |
| 2024-09-16 | AA | accounts | Accounts with accounts type group | |
| 2024-05-27 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-12-21 | AA | accounts | Accounts with accounts type group | |
| 2023-06-08 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-04-05 | AA | accounts | Accounts with accounts type group | |
| 2023-01-27 | AP01 | officers | Appoint person director company with name date | |
| 2022-05-26 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-04-04 | AA | accounts | Accounts with accounts type group | |
| 2021-05-27 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2021-04-01 | AA | accounts | Accounts with accounts type group |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 10
- Capital events
- 0
- Officers appointed
- 3
- 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
-19.7%
£23,709,482 £19,033,854
-
Cash
+40.7%
£6,234,017 £8,771,465
-
Net assets
+4.3%
£17,861,415 £18,633,917
-
Employees
-5.9%
136 128
-
Operating profit
-52.8%
£2,769,256 £1,307,432
-
Profit before tax
-49.2%
£2,849,081 £1,448,314
-
Wages
-7.6%
£7,053,883 £6,519,377
Each % is (latest − prior) ÷ |prior| for the line item as filed. Periods don't have to be exactly 12 months apart — a long or short period (typical around incorporation or year-end changes) will distort the comparison. Lines a company doesn't report are omitted. About these numbers