Whistonbrook Technologies Limited
Registered name: WHISTONBROOK TECHNOLOGIES LIMITED
Whistonbrook Technologies Limited made £25.1k revenue and a £24.1k loss in the year to 31 Dec 2025.
Whistonbrook Technologies Limited’s revenue fell 53% to £25.1k in the year to 31 Dec 2025, with a loss of £24.1k and 2 employees. The company is classified under “manufacture of electronic measuring, testing etc. equipment, not for industrial process control” and is based in Harpenden; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Harpenden, East of England
- Age
- 28 yrs · since 1998
- Type
- Private Limited Company
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 Dec 2022 | 31 Dec 2023 | 31 Dec 2024 | 31 Dec 2025 |
|---|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | £173k | £26.4k | £53.8k | £25.1k |
| Profit after tax | £11.2k | −£91.7k | −£23.1k | −£24.1k |
| Profit (best available) | £11.2k | −£91.7k | −£23.1k | −£24.1k |
| Staff costs | £126k | £93.5k | £64k | £37k |
| Employees (average) | — | 2 | 2 | 2 |
| Ratios | ||||
| Profit margin | 6.5% | −347.6% | −43% | −95.8% |
| Revenue per employee | — | £13.2k | £26.9k | £12.6k |
| Profit per employee | — | −£45.8k | −£11.6k | −£12k |
| Growth (year on year) | ||||
| Revenue growth | — | ▼84.7% | ▲103.8% | ▼53.3% |
| Profit growth | — | ▼916.1% | — | — |
| Headcount growth | — | — | 0% | 0% |
| Balance sheet — indirect signals, not revenue | ||||
| Net assets | £123k | £31.3k | £8.2k | −£13.1k |
| Fixed assets | £637 | £522 | £428 | £351 |
| Current assets | £152k | £55.5k | £34.5k | £10.6k |
| Source | FullAccounts · bulk data Sep 2024 | FullAccounts · bulk data Sep 2024 | FullAccounts · bulk data Jun 2025 | FullAccounts · bulk data Mar 2026 |
How the business works
- Profit margin
- −95.8%
- Profit ÷ revenue.
- Gross margin
- —
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £12.6k
- Revenue ÷ average employees.
- Profit per employee
- −£12k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 1.4%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- —
- Money owed by customers. Low = customers pay quickly.
Balance-sheet signals
Year-on-year changes in filed balance-sheet items. They can hint at momentum (or investment) but are not revenue or profit and must not be read as such.
- Net assets
- ▼261%
- Now −£13.1k
- Cash at bank
- —
- Now —
- Headcount
- 0%
- Now 2
- Deferred income
- —
- Now —
- Fixed assets
- ▼18%
- Now £351
Sources
Latest figures from FullAccounts for the year to 31 Dec 2025 (profit −£24.1k), from the Companies House accounts bulk data published Mar 2026. Spotted an error? Request a correction.
Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.