THERMOTEKNIX SYSTEMS LIMITED
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Next accounts due
2027-01-27 (in 8mo)
Last filed for 2025-04-30
Confirmation statement due
2026-12-20 (in 7mo)
Last made up 2025-12-06
Watchouts
None on the register
Cash
£10M
-23.3% lowest in 4 filed years
Net assets
£8M
-18.4% lowest in 3 filed years
Employees
68
-1.4% vs 2024
Profit before tax
-£2M
-272.4% lowest in 3 filed years
Net assets
8-year trend · vs Industrials median
Accounts
8-year trend · latest reflected 2025-04-30
| Metric | Trend | 2019-04-30 | 2020-04-30 | 2021-04-30 | 2022-04-30 | 2023-04-30 | 2023-05-01 | 2024-04-30 | 2025-04-30 |
|---|---|---|---|---|---|---|---|---|---|
| Turnover | — | — | — | — | — | — | £16,188,194 | £14,303,265 | |
| Operating profit | — | — | — | — | — | — | £682,923 | -£2,241,160 | |
| Profit before tax | — | — | — | — | £1,276,263 | — | £1,088,166 | -£1,876,019 | |
| Net profit | — | — | — | — | £1,705,871 | — | £1,088,166 | -£1,876,019 | |
| Cash | — | — | — | — | £12,755,121 | £12,755,121 | £13,466,555 | £10,322,685 | |
| Total assets less current liabilities | — | — | — | — | £9,905,522 | — | £10,220,816 | £8,344,797 | |
| Net assets | — | — | — | — | £9,838,156 | — | £10,220,816 | £8,344,797 | |
| Equity | £4,373,049 | £6,146,217 | — | — | £9,838,156 | £9,132,650 | £10,220,816 | £8,344,797 | |
| Average employees | — | — | — | — | 66 | — | 69 | 68 | |
| Wages | — | — | — | — | — | — | £7,141,294 | £7,785,017 | |
| Directors' remuneration | — | — | — | — | — | — | £949,000 | £748,000 |
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
FY2024 → FY2025 · period ending 2025-04-30 vs 2024-04-30
-
Turnover
-11.6%
£16,188,194 £14,303,265
-
Cash
-23.3%
£13,466,555 £10,322,685
lowest in 4 filed years
-
Net assets
-18.4%
£10,220,816 £8,344,797
lowest in 3 filed years
-
Employees
-1.4%
69 68
-
Operating profit
-428.2%
£682,923 -£2,241,160
-
Profit before tax
-272.4%
£1,088,166 -£1,876,019
lowest in 3 filed years
-
Wages
+9%
£7,141,294 £7,785,017
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 | 2019-04-30 | 2020-04-30 | 2021-04-30 | 2022-04-30 | 2023-04-30 | 2023-05-01 | 2024-04-30 | 2025-04-30 |
|---|---|---|---|---|---|---|---|---|---|
| Operating margin | — | — | — | — | — | — | 4.2% | -15.7% | |
| Net margin | — | — | — | — | — | — | 6.7% | -13.1% | |
| Return on capital employed | — | — | — | — | — | — | 6.7% | -26.9% | |
| Gearing (liabilities / total assets) | — | — | — | — | — | — | 43.9% | 59.8% | |
| Current ratio | — | — | — | — | — | — | 2.24x | 1.65x |
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
- Standalone (parent only)
- Auditor
- Price Bailey LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“the directors have considered the company's strong balance sheet position and the performance of the company in the current year and subsequent to the year end. The directors therefore believe the company continues to be a going concern and have prepared the financial statements on a going concern basis.”
Group structure
- THERMOTEKNIX SYSTEMS LIMITED · parent
- Thermoteknix Systems (HK) Limited 100%
Significant events
- “Thermoteknix commitment to innovation and commercial success has been widely recognized, including receiving the first-ever King's Award for Enterprise 2023 in International Trade and a second King's Award for Enterprise 2024 in Innovation, recognising Thermoteknix success in its Augmented Reality enhanced Night Vision and Thermal Imaging products. This marks the company's fifth such Royal award, following earlier "Queen's Award for Enterprise, Export" and two "Queen's Awards for Enterprise, Innovation".”
- “Global success has also been achieved with the recent launch of innovative new products in both the industrial and surveillance sectors. Increased global tension and activity in Eastern Europe have created new opportunities for Thermoteknix security and surveillance products, where the company's expertise is in high demand.”
- “The UK's decision to leave the European Union has introduced uncertainty for many businesses, resulting in fluctuations in currency exchange rates. Thermoteknix continues to assess the implications of limited access to European markets while seeking to capitalize on expanded global opportunities.”
- “Despite a reduction in turnover in the current year and substantial ongoing investment in R&D projects Thermoteknix has maintained positive cash flow, strong cash reserves, and a solid balance sheet.”
- “The global semiconductor shortage impacted product manufacturing and delivery times, as well as component purchase prices driven to unprecedented levels.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
3 active · 1 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| SALISBURY, Richard Sydney, Dr | Secretary | — | — | British |
| SALISBURY, Geraldine Anne | Director | 1992-04-16 | Aug 1955 | British |
| SALISBURY, Richard Sydney, Dr | Director | — | Mar 1950 | British |
Show 1 resigned officer
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| PREES, Michael Ronald | Director | — | 1992-04-16 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Dr Richard Sydney Salisbury | Individual | Significant influence | 2016-04-06 | Active |
Filing timeline
Last 20 of 103 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-04-24 | AA | accounts | Accounts with accounts type full | |
| 2026-04-16 | CH01 | officers | Change person director company with change date | |
| 2026-01-28 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2026-01-28 | CH03 | officers | Change person secretary company with change date | |
| 2026-01-28 | CH01 | officers | Change person director company with change date | |
| 2026-01-27 | AA01 | accounts | Change account reference date company previous shortened | |
| 2025-08-11 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-01-07 | AA | accounts | Accounts with accounts type full | |
| 2024-12-09 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2024-11-11 | PSC04 | persons-with-significant-control | Change to a person with significant control | |
| 2023-12-29 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-12-13 | AA | accounts | Accounts with accounts type full | |
| 2023-01-25 | AA | accounts | Accounts with accounts type full | |
| 2023-01-20 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-03-02 | AA | accounts | Accounts with accounts type full | |
| 2022-01-28 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-01-28 | AA01 | accounts | Change account reference date company previous shortened | |
| 2021-01-19 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2020-10-08 | AA | accounts | Accounts with accounts type full | |
| 2020-01-29 | AA | accounts | Accounts with accounts type full |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 7
- 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.