Puretech Systems Limited
Registered name: PURETECH SYSTEMS LIMITED
Part of Esi Technologies Limited groupPuretech Systems Limited made £10.4m revenue and a £694k loss in the year to 31 Dec 2025.
Puretech Systems Limited’s revenue fell 4% to £10.4m in the year to 31 Dec 2025, with a loss of £694k and 43 employees. The company is classified under “manufacture of electronic measuring, testing etc. equipment, not for industrial process control” and is based in Salfords; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Salfords, South East
- Age
- 35 yrs · since 1990
- Type
- Private Limited Company
Pass-through vehicle. This looks like a holding, staffing or umbrella company. Its revenue and profit may largely pass through to or from other entities, so the figures may not reflect a standalone operating business. It is excluded from our opportunity lists.
Part of a group. The filing indicates this company sits within a group structure, so its results may depend on intra-group trading and it may be hard to replicate independently.
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 | Profit only | Profit only | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | — | — | £10.9m | £10.4m |
| Cost of sales | — | — | £9.4m | £8.2m |
| Gross profit | — | — | £1.4m | £2.3m |
| Operating profit | — | — | −£1.9m | −£1m |
| Profit before tax | — | — | −£1.9m | −£942k |
| Profit after tax | £1.9m | −£1.2m | −£1.9m | −£694k |
| Profit (best available) | £1.9m | −£1.2m | −£1.9m | −£694k |
| Staff costs | — | — | £3.4m | £3.3m |
| Employees (average) | 45 | 50 | 46 | 43 |
| Ratios | ||||
| Profit margin | — | — | −17.2% | −6.7% |
| Gross margin | — | — | 13.3% | 21.6% |
| Revenue per employee | — | — | £236k | £243k |
| Profit per employee | £43.2k | −£25k | −£40.6k | −£16.1k |
| Growth (year on year) | ||||
| Revenue growth | — | — | — | ▼4% |
| Profit growth | — | ▼164.1% | — | — |
| Headcount growth | — | ▲11.1% | ▼8% | ▼6.5% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £562k | £731k | £729k | £1.6m |
| Net assets | £3.3m | £2.3m | £449k | −£245k |
| Fixed assets | £2.3m | £3m | £3.2m | £1.2m |
| Current assets | £6.2m | £4.9m | £3.3m | £4.8m |
| Debtors | £0 | £0 | £0 | £41.9k |
| Deferred income | — | — | £728k | £640k |
| Source | FullAccounts · bulk data Sep 2024 | FullAccounts · bulk data Sep 2024 | FullAccounts · bulk data Sep 2025 | FullAccounts · bulk data Jun 2026 |
How the business works
- Profit margin
- −6.7%
- Profit ÷ revenue.
- Gross margin
- 21.6%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £243k
- Revenue ÷ average employees.
- Profit per employee
- −£16.1k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 11.2%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- 6.1%
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 0.4%
- 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
- ▼154%
- Now −£245k
- Cash at bank
- ▲121%
- Now £1.6m
- Headcount
- ▼7%
- Now 43
- Deferred income
- ▼12%
- Now £640k
- Fixed assets
- ▼63%
- Now £1.2m
Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.
Group structure
Ownership chain
- Esi Technologies Limited (registered outside the UK register)ultimate parent75–100%
- Esi Process U.K. Limited75–100%
- U.K. Gas Technologies Limited75–100%
- Puretech Systems Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (3)
- Medical Gases LimitedFigures not disclosed
- Microgas Systems LimitedActive - Proposal to Strike offFigures not disclosed
- Puretech Process Systems LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Similar profitable businesses
- Martek Marine LimitedRotherham · Manufacture of electronic measuring, testing etc. equipment, not for industrial process control
- Revenue
- £10.4m
- Profit
- £1.1m
- Staff
- 48
- Sonatest LtdMilton Keynes · Manufacture of electronic measuring, testing etc. equipment, not for industrial process control
- Revenue
- £10.6m
- Profit
- £527k
- Staff
- 39
- PCS Instruments LimitedLondon · Manufacture of electronic measuring, testing etc. equipment, not for industrial process control
- Revenue
- £11m
- Profit
- £2.6m
- Staff
- 31
- Tosoh Bioscience LimitedLondon · Manufacture of electronic measuring, testing etc. equipment, not for industrial process control
- Revenue
- £9.5m
- Profit
- £192k
- Staff
- 20
- Southern Scientific LimitedHenfield · Manufacture of electronic measuring, testing etc. equipment, not for industrial process control
- Revenue
- £9.2m
- Profit
- £858k
- Staff
- 30
- Specac LimitedOrpington · Manufacture of electronic measuring, testing etc. equipment, not for industrial process control
- Revenue
- £12.1m
- Profit
- £705k
- Staff
- 76
Sources
Latest figures from FullAccounts for the year to 31 Dec 2025 (profit −£694k), from the Companies House accounts bulk data published Jun 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.