Synergy Health Sterilisation UK Limited
Registered name: SYNERGY HEALTH STERILISATION UK LIMITED
Part of Steris Public Limited Company groupSynergy Health Sterilisation UK Limited made £55.4m revenue and £16.6m profit in the year to 31 Mar 2025. read from filing text
Synergy Health Sterilisation UK Limited’s revenue grew 7% to £55.4m in the year to 31 Mar 2025, with £16.6m profit and 238 employees. The company is classified under “other professional, scientific and technical activities” and is based in Basingstoke; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Basingstoke, South East
- Age
- 42 yrs · since 1983
- Type
- Private Limited Company
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. From the filing: “The”
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 Mar 2023 | 31 Mar 2024 | 31 Mar 2025 |
|---|---|---|---|
| Disclosure | Full P&Lread from filing text | Full P&Lread from filing text | Full P&Lread from filing text |
| Profit & loss | |||
| Revenue (turnover) | £53.8m | £51.7m | £55.4m |
| Cost of sales | £24m | £24.6m | £27.5m |
| Gross profit | £29.8m | £27.1m | £27.9m |
| Operating profit | £23.6m | £20.7m | £21.1m |
| Profit before tax | £24.5m | £21.5m | £21.6m |
| Profit after tax | £19.8m | £16.2m | £16.6m |
| Profit (best available) | £19.8m | £16.2m | £16.6m |
| Staff costs | £11.8m | £13.2m | £15.6m |
| Employees (average) | 227 | 227 | 238 |
| Ratios | |||
| Profit margin | 36.8% | 31.3% | 29.9% |
| Gross margin | 55.4% | 52.4% | 50.4% |
| Revenue per employee | £237k | £228k | £233k |
| Profit per employee | £87.2k | £71.3k | £69.7k |
| Growth (year on year) | |||
| Revenue growth | — | ▼4% | ▲7.2% |
| Profit growth | — | ▼18.3% | ▲2.5% |
| Headcount growth | — | 0% | ▲4.9% |
| Balance sheet — indirect signals, not revenue | |||
| Cash at bank | £30k | £4k | £1k |
| Net assets | £87.7m | £80.3m | £97.3m |
| Fixed assets | £77.6m | £78.3m | £97.8m |
| Current assets | £27.9m | £23.2m | £27.8m |
| Debtors | £6.9m | £6.7m | £6.5m |
| Deferred income | £1.2m | £1.5m | £2.2m |
| Source | FullAccounts · bulk data Dec 2024 | FullAccounts · bulk data Dec 2024 | FullAccounts · bulk data Nov 2025 |
How the business works
- Profit margin
- 29.9%
- Profit ÷ revenue.
- Gross margin
- 50.4%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £233k
- Revenue ÷ average employees.
- Profit per employee
- £69.7k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 176.5%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- 3.9%
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 11.8%
- 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
- ▲21%
- Now £97.3m
- Cash at bank
- ▼75%
- Now £1k
- Headcount
- ▲5%
- Now 238
- Deferred income
- ▲45%
- Now £2.2m
- Fixed assets
- ▲25%
- Now £97.8m
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
- Steris Public Limited Company (registered outside the UK register)ultimate parent75–100%
- Steris Limited75–100%
- Synergy Health Limited75–100%
- Synergy Health Holdings Limited75–100%
- Synergy Health Sterilisation UK Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (1)
- Synergy Health Investments LimitedRev. £0 · Profit −£1.9m
Sister companies (5)
- Synergy Health (UK) LimitedRev. £105m · Profit £7m
- Synergy Health Systems LimitedRev. £9.3m · Profit £381k
- Harwell Dosimeters LimitedRev. £5.4m · Profit £2.5m
- Medisafe Holdings LtdRev. £0 · Profit £10m
- Shiloh LimitedRev. £0 · Profit −£466k
From the Persons with Significant Control register (corporate controllers only).
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Sources
Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £16.6m), from the Companies House accounts bulk data published Nov 2025. Spotted an error? Request a correction.
Updated from Companies House on 14 Oct 2026
Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.