Rock Compliance Limited
Registered name: ROCK COMPLIANCE LIMITED
Part of Carp Topco Limited groupRock Compliance Limited made £19.8m revenue and £472k profit in the year to 31 Mar 2025.
Rock Compliance Limited’s revenue fell 3% to £19.8m in the year to 31 Mar 2025, with £472k profit and 303 employees. The company is classified under “other business support service activities” and is based in Alcester; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Alcester, West Midlands
- Age
- 32 yrs · since 1994
- 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.
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&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | £19.3m | £20.3m | £19.8m |
| Cost of sales | £10.9m | £9.9m | £10.2m |
| Gross profit | £8.4m | £10.5m | £9.6m |
| Profit before tax | −£915k | £3.2m | −£60.6k |
| Profit after tax | −£775k | £3.4m | £472k |
| Profit (best available) | −£775k | £3.4m | £472k |
| Staff costs | £11.5m | £12.3m | £12.6m |
| Employees (average) | 312 | 305 | 303 |
| Ratios | |||
| Profit margin | −4% | 16.7% | 2.4% |
| Gross margin | 43.5% | 51.4% | 48.5% |
| Revenue per employee | £62k | £66.7k | £65.3k |
| Profit per employee | −£2.5k | £11.2k | £1.6k |
| Growth (year on year) | |||
| Revenue growth | — | ▲5.2% | ▼2.7% |
| Profit growth | — | — | ▼86.1% |
| Headcount growth | — | ▼2.2% | ▼0.7% |
| Balance sheet — indirect signals, not revenue | |||
| Cash at bank | £223k | £261k | £394k |
| Net assets | −£117k | £3.3m | £3.4m |
| Fixed assets | £1.4m | £1.6m | £1.7m |
| Current assets | £6.2m | £6.5m | £5.6m |
| Debtors | £3.8m | £3.3m | £3.4m |
| Cash from operations | £704k | £846k | £1.1m |
| Source | FullAccounts · bulk data Jan 2025 | FullAccounts · bulk data Jan 2025 | FullAccounts · bulk data Dec 2025 |
How the business works
- Profit margin
- 2.4%
- Profit ÷ revenue.
- Gross margin
- 48.5%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £65.3k
- Revenue ÷ average employees.
- Profit per employee
- £1.6k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 8.5%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 17.1%
- 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
- ▲2%
- Now £3.4m
- Cash at bank
- ▲51%
- Now £394k
- Headcount
- ▼1%
- Now 303
- Deferred income
- —
- Now —
- Fixed assets
- ▲5%
- Now £1.7m
Group structure
Ownership chain
- Carp Topco Limitedultimate parent75–100%
- Carp Midco Limited75–100%
- Andwis Group Limited75–100%
- Rock Compliance Holdings Limited75–100%
- Rock Compliance Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (1)
- Water Hygiene Services Group LimitedFigures not disclosed
Sister companies (6)
- 3C Environmental Technology LtdFigures not disclosed
- Acp Water Treatment Ltd.Figures not disclosed
- Aston Environmental Services LimitedFigures not disclosed
- Chemtech Consultancy LimitedFigures not disclosed
- Glisten Water LtdFigures not disclosed
- Western Environmental LimitedFigures not disclosed
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 £472k), from the Companies House accounts bulk data published Dec 2025. 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.