TAN DELTA SYSTEMS PLC
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Next accounts due
2026-06-30 (in 1mo)
Last filed for 2024-12-31
Confirmation statement due
2026-09-19 (in 4mo)
Last made up 2025-09-05
Watchouts
None on the register
Cash
£3M
-32.3% vs 2023
Net assets
£4M
-23% vs 2023
Employees
15
+36.4% highest in 5 filed years
Profit before tax
-£1M
-11.8% vs 2023
Net assets
5-year trend · vs Industrials median
Accounts
5-year trend · latest reflected 2024-12-31
| Metric | Trend | 2019-12-31 | 2020-12-31 | 2021-12-31 | 2023-12-31 | 2024-12-31 |
|---|---|---|---|---|---|---|
| Turnover | — | — | — | £1,457,344 | £1,215,328 | |
| Operating profit | — | — | — | -£1,079,201 | -£1,337,051 | |
| Profit before tax | — | — | — | -£1,049,500 | -£1,173,402 | |
| Net profit | — | — | — | -£1,042,285 | -£1,167,720 | |
| Cash | £78,602 | £163,814 | £192,344 | £4,555,003 | £3,083,552 | |
| Total assets less current liabilities | — | — | — | — | — | |
| Net assets | £154,521 | £194,066 | £218,952 | £4,922,789 | £3,791,974 | |
| Equity | £154,521 | £194,066 | £218,952 | £4,922,789 | £3,791,974 | |
| Average employees | 13 | 11 | 9 | 11 | 15 | |
| Wages | — | — | — | £754,028 | £1,238,078 | |
| Directors' remuneration | — | — | — | £185,516 | £341,782 |
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
-16.6%
£1,457,344 £1,215,328
-
Cash
-32.3%
£4,555,003 £3,083,552
-
Net assets
-23%
£4,922,789 £3,791,974
-
Employees
+36.4%
11 15
highest in 5 filed years
-
Operating profit
-23.9%
-£1,079,201 -£1,337,051
-
Profit before tax
-11.8%
-£1,049,500 -£1,173,402
-
Wages
+64.2%
£754,028 £1,238,078
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 | 2019-12-31 | 2020-12-31 | 2021-12-31 | 2023-12-31 | 2024-12-31 |
|---|---|---|---|---|---|---|
| Operating margin | — | — | — | -74.1% | -110.0% | |
| Net margin | — | — | — | -71.5% | -96.1% | |
| Gearing (liabilities / total assets) | — | — | — | 10.3% | 13.4% | |
| Current ratio | — | — | — | 10.53x | 7.60x | |
| Interest cover | — | — | — | -168.26x | -511.89x |
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 2 times since incorporation
- TAN DELTA SYSTEMS PLC 2023-07-28 → present
- TAN DELTA SYSTEMS LTD 2011-05-24 → 2023-07-28
- OIL MANAGEMENT SERVICES LTD 2007-09-05 → 2011-05-24
Audit & accounting basis
- Accounting basis
- IFRS
- Reporting scope
- Standalone (parent only)
- Auditor
- HaysMac LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“In evaluating the feasibility of preparing the financial statements of the Company on a going concern basis, the directors thoroughly examined the Company's business operations alongside factors anticipated to impact its future growth, performance, and standing. This assessment encompassed scrutinising the Company's financial standing and cash flows. Several pessimistic scenarios were simulated and analysed to establish a spectrum of potential outcomes, with the adjusted assumptions rigorously scrutinised. The modelled cash flow forecast, based on these scenarios, illustrated that the Company would be capable of meeting its financial obligations for the period to 31 December 2026. Consequently, the directors are confident that preparing the financial statements on a going concern basis is appropriate.”
Significant events
- “expanded our production and supply chain capacity to support a fivefold increase in output, appointed a dedicated production manager, and made key hires across engineering, quality, and operations.”
- “A dedicated salesperson in the Middle East was recruited in the first half of the year.”
- “signed two new distribution agreements in the Middle East and grew our regional pipeline from zero to over £14 million.”
- “deepened traction with OEMs, now working in active collaboration with four of the world's seven major engine manufacturers.”
- “We are progressing well with the development of a new sensor for water-based fluids such as coolant, driven by demand from a major engine OEM who has co-funded the project.”
- “A prior year adjustment was made to the financial statements to correct an over expense to the share option reserve in the previous year. Share option costs had been recognised incorrectly for the full year instead of recognising share option charges for five months since they were issued in August 2023.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
6 active · 12 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| HIGGINBOTTOM, John Nigel | Secretary | 2024-07-05 | — | — |
| ALVAREZ, Joy | Director | 2024-04-09 | Dec 1976 | American |
| CROSTON, Timothy John | Director | 2023-08-18 | May 1963 | British |
| GREENWOOD, Christopher John | Director | 2010-02-01 | Jun 1966 | British |
| HIGGINBOTTOM, John Nigel | Director | 2024-07-05 | May 1975 | British |
| TUCKER, Simon Richard | Director | 2013-05-16 | May 1970 | British |
Show 12 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| BOOTH, Richard | Secretary | 2013-11-05 | 2023-07-28 |
| FINDLOW, Allan | Secretary | 2007-09-05 | 2013-11-05 |
| JOHNSON, Stephen Dean | Secretary | 2024-02-01 | 2024-07-05 |
| FORM 10 SECRETARIES FD LTD | Corporate Nominee Secretary | 2007-09-05 | 2007-09-07 |
| ONE ADVISORY LIMITED | Corporate Secretary | 2023-07-28 | 2024-02-01 |
| BOOTH, Richard | Director | 2007-09-05 | 2023-07-21 |
| FINDLOW, Allan | Director | 2007-09-05 | 2012-03-01 |
| HORNE, Jonathan Michael | Director | 2013-05-16 | 2023-07-21 |
| JOHNSON, Stephen Dean | Director | 2023-08-18 | 2024-07-05 |
| MICKLETHWAITE, Kevin Ronald | Director | 2007-11-19 | 2012-03-01 |
| ROGERS, Simon Francis | Director | 2013-05-16 | 2023-07-21 |
| FORM 10 DIRECTORS FD LTD | Corporate Nominee Director | 2007-09-05 | 2007-09-07 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Mr Simon Francis Rogers | Individual | Shares 25–50% | 2016-09-04 | Ceased 2017-02-01 |
Filing timeline
Last 20 of 133 total filings
Material constitutional events — rename, articles re-file, resolution
- 2025-07-01 RESOLUTIONS Resolution
- 2024-06-19 RESOLUTIONS Resolution
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2025-09-22 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-07-01 | RESOLUTIONS | resolution | Resolution | |
| 2025-05-15 | AA | accounts | Accounts with accounts type full | |
| 2024-10-09 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-07-05 | AP03 | officers | Appoint person secretary company with name date | |
| 2024-07-05 | AP01 | officers | Appoint person director company with name date | |
| 2024-07-05 | TM02 | officers | Termination secretary company with name termination date | |
| 2024-07-05 | TM01 | officers | Termination director company with name termination date | |
| 2024-06-19 | RESOLUTIONS | resolution | Resolution | |
| 2024-05-14 | AA | accounts | Accounts with accounts type full | |
| 2024-04-23 | AP01 | officers | Appoint person director company with name date | |
| 2024-02-07 | AP03 | officers | Appoint person secretary company with name date | |
| 2024-02-07 | TM02 | officers | Termination secretary company with name termination date | |
| 2023-09-29 | AA | accounts | Accounts with accounts type small | |
| 2023-09-18 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2023-09-15 | MR04 | mortgage | Mortgage satisfy charge full | |
| 2023-09-06 | CH01 | officers | Change person director company with change date | |
| 2023-08-18 | SH01 | capital | Capital allotment shares | |
| 2023-08-18 | CH01 | officers | Change person director company with change date | |
| 2023-08-18 | AP01 | officers | Appoint person director company with name 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.