SYNAIRGEN RESEARCH LIMITED
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Next accounts due
2026-09-30 (in 4mo)
Last filed for 2024-12-31
Confirmation statement due
2026-06-09 (in 1mo)
Last made up 2025-05-26
Watchouts
Cash
£204K
-12.4% vs 2023
Net assets
£2M
+154% vs 2023
Employees
33
+3.1% vs 2023
Profit before tax
-£8M
+20.7% vs 2023
Watchouts
Facts from the Companies House register and the latest accounts — not a rating
-
Material uncertainty over going concern
The financial statements of the Parent Company included material uncertainties related to going concern, which may have a direct impact on its ability to provide the required financial support to the Company. As a result, this indicates the existence of a material uncertainty which may cast significant doubt on the Company's ability to continue as a going concern and therefore, the Company may be unable to realise its assets and discharge its liabilities in the ordinary course of business.
Net assets
2-year trend · vs Health Care median
Accounts
2-year trend · latest reflected 2024-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Turnover | — | — | |
| Operating profit | -£9,675,000 | -£7,677,000 | |
| Profit before tax | -£9,675,000 | -£7,677,000 | |
| Net profit | -£8,440,000 | -£6,559,000 | |
| Cash | £233,000 | £204,000 | |
| Total assets less current liabilities | £720,000 | £1,829,000 | |
| Net assets | £720,000 | £1,829,000 | |
| Equity | £720,000 | £1,829,000 | |
| Average employees | 32 | 33 | |
| Wages | £2,927,000 | £2,855,000 | |
| Directors' remuneration | £973,000 | £956,000 |
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
Year-on-year
FY2023 → FY2024 · period ending 2024-12-31 vs 2023-12-31
-
Turnover
—
Not reported
-
Cash
-12.4%
£233,000 £204,000
-
Net assets
+154%
£720,000 £1,829,000
-
Employees
+3.1%
32 33
-
Operating profit
+20.7%
-£9,675,000 -£7,677,000
-
Profit before tax
+20.7%
-£9,675,000 -£7,677,000
-
Wages
-2.5%
£2,927,000 £2,855,000
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
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Return on capital employed | -1343.8% | -419.7% | |
| Current ratio | 1.36x | 2.08x |
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 1 time since incorporation
- SYNAIRGEN RESEARCH LIMITED 2004-10-12 → present
- SYNAIRGEN LIMITED 2003-06-10 → 2004-10-12
Audit & accounting basis
- Accounting basis
- FRS 101
- Reporting scope
- Standalone (parent only)
- Auditor
- BDO LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Material uncertainty disclosed
“The financial statements of the Parent Company included material uncertainties related to going concern, which may have a direct impact on its ability to provide the required financial support to the Company. As a result, this indicates the existence of a material uncertainty which may cast significant doubt on the Company's ability to continue as a going concern and therefore, the Company may be unable to realise its assets and discharge its liabilities in the ordinary course of business.”
Significant events
- “On 17 January 2025, TFG Asset Management UK LLP invested £18.0m to acquire 900m shares, this took their holding from 58m ordinary shares (28.8%) to 958m ordinary shares (86.9%), resulting in them becoming the ultimate controlling party.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
3 active · 10 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| COLLIVER, Joseph Tregonning | Secretary | 2023-11-06 | — | — |
| COLLIVER, Joseph Tregonning | Director | 2023-11-06 | Mar 1980 | British |
| PARRY-BILLINGS, Mark, Dr | Director | 2025-07-24 | May 1964 | British |
Show 10 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| BROOKS, John Reginald | Secretary | 2004-02-02 | 2004-10-19 |
| WARD, John Christopher William | Secretary | 2004-10-19 | 2023-11-03 |
| HALE AND DORR SECRETARIES LIMITED | Corporate Secretary | 2003-06-10 | 2004-02-02 |
| HOLGATE, Stephen Townley, Professor | Director | 2003-06-10 | 2025-01-16 |
| MARSDEN, Richard James | Director | 2004-06-07 | 2025-07-01 |
| MONK, Phillip David, Dr | Director | 2009-09-03 | 2024-09-06 |
| NORWOOD, David Robert | Director | 2003-08-01 | 2004-10-22 |
| SHAW, Simon James Blouet | Director | 2003-07-03 | 2004-10-22 |
| SUNDSTROM, Susan Margaret | Director | 2003-06-10 | 2004-10-22 |
| WARD, John Christopher William | Director | 2004-10-22 | 2023-11-03 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Synairgen Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2016-04-06 | Active |
Filing timeline
Last 20 of 87 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2025-10-03 | AA | accounts | Accounts with accounts type full | |
| 2025-07-25 | AP01 | officers | Appoint person director company with name date | |
| 2025-07-21 | TM01 | officers | Termination director company with name termination date | |
| 2025-06-03 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2025-06-03 | PSC05 | persons-with-significant-control | Change to a person with significant control | |
| 2025-04-22 | TM01 | officers | Termination director company with name termination date | |
| 2024-10-09 | AA | accounts | Accounts with accounts type full | |
| 2024-09-06 | TM01 | officers | Termination director company with name termination date | |
| 2024-08-02 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-08-02 | AP03 | officers | Appoint person secretary company with name date | |
| 2023-11-06 | AP01 | officers | Appoint person director company with name date | |
| 2023-11-06 | TM01 | officers | Termination director company with name termination date | |
| 2023-11-06 | TM02 | officers | Termination secretary company with name termination date | |
| 2023-09-23 | AA | accounts | Accounts with accounts type full | |
| 2023-07-26 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-09-23 | AA | accounts | Accounts with accounts type full | |
| 2022-05-31 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2021-09-29 | AA | accounts | Accounts with accounts type full | |
| 2021-07-01 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2020-10-05 | AA | accounts | Accounts with accounts type full |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 5
- 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.