Critical Infrastructure Services Ltd
Registered name: CRITICAL INFRASTRUCTURE SERVICES LTD
Critical Infrastructure Services Ltd made £28.3k revenue and £14.3k profit in the year to 31 Aug 2025.
Critical Infrastructure Services Ltd’s revenue fell 45% to £28.3k in the year to 31 Aug 2025, with £14.3k profit and 6 employees. The company is classified under “construction of railways and underground railways” and is based in March; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- March, East of England
- Age
- 4 yrs · since 2022
- 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 Aug 2023 | 31 Aug 2024 | 31 Aug 2025 |
|---|---|---|---|
| Disclosure | No P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | — | £51.4k | £28.3k |
| Profit after tax | — | £10.7k | £14.3k |
| Profit (best available) | — | £10.7k | £14.3k |
| Staff costs | — | £32.3k | £8.8k |
| Employees (average) | 7 | 6 | 6 |
| Ratios | |||
| Profit margin | — | 20.9% | 50.4% |
| Revenue per employee | — | £8.6k | £4.7k |
| Profit per employee | — | £1.8k | £2.4k |
| Growth (year on year) | |||
| Revenue growth | — | — | ▼44.9% |
| Profit growth | — | — | ▲32.8% |
| Headcount growth | — | ▼14.3% | 0% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | £12.4k | £7k | £1.5k |
| Fixed assets | £9.8k | £6k | £1.1k |
| Current assets | £2.6k | £6k | £5.4k |
| Source | FullAccounts · bulk data Apr 2024 | FullAccounts · bulk data Jun 2025 | FullAccounts · bulk data Mar 2026 |
How the business works
- Profit margin
- 50.4%
- Profit ÷ revenue.
- Gross margin
- —
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £4.7k
- Revenue ÷ average employees.
- Profit per employee
- £2.4k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 3.9%
- 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
- ▼79%
- Now £1.5k
- Cash at bank
- —
- Now —
- Headcount
- 0%
- Now 6
- Deferred income
- —
- Now —
- Fixed assets
- ▼82%
- Now £1.1k
Sources
Latest figures from FullAccounts for the year to 31 Aug 2025 (profit £14.3k), 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.