Security Monitoring Centres Limited
Registered name: SECURITY MONITORING CENTRES LIMITED
Part of Api Group Corporation groupSecurity Monitoring Centres Limited made £25.3m revenue and £8.8m profit in the year to 31 Dec 2025.
Security Monitoring Centres Limited’s revenue fell 7% to £25.3m in the year to 31 Dec 2025, with £8.8m profit and 161 employees. The company is classified under “private security activities” and is based in Blackburn; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Blackburn
- Age
- 90 yrs · since 1936
- Type
- Private Limited Company
Key figures
Financial history
| Year to | 31 Dec 2023 | 31 Dec 2024 | 31 Dec 2025 |
|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | £27.4m | £27.1m | £25.3m |
| Cost of sales | −£16.9m | −£16.4m | −£16.3m |
| Gross profit | £10.5m | £10.7m | £9m |
| Operating profit | £6.9m | £7.8m | £5.9m |
| Profit before tax | £6.9m | £8.3m | £8.9m |
| Profit after tax | £6.8m | £8.2m | £8.8m |
| Profit (best available) | £6.8m | £8.2m | £8.8m |
| Employees (average) | 167 | 158 | 161 |
| Ratios | |||
| Profit margin | 24.8% | 30.2% | 34.9% |
| Gross margin | 38.4% | 39.4% | 35.5% |
| Revenue per employee | £164k | £171k | £157k |
| Profit per employee | £40.7k | £51.7k | £54.9k |
| Growth (year on year) | |||
| Revenue growth | — | ▼1.4% | ▼6.5% |
| Profit growth | — | ▲20.1% | ▲8.1% |
| Headcount growth | — | ▼5.4% | ▲1.9% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Oct 2025 | Accounts · bulk data Oct 2025 | Accounts · bulk data Oct 2026 |
How the business works
- Profit margin
- 34.9%
- Profit ÷ revenue.
- Gross margin
- 35.5%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £157k
- Revenue ÷ average employees.
- Profit per employee
- £54.9k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- —
- 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
- —
- Now —
- Cash at bank
- —
- Now —
- Headcount
- ▲2%
- Now 161
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- Api Group Corporation (registered outside the UK register)ultimate parent75–100%
- Api Group UK Holdco Limited75–100%
- Chubb Limited75–100%
- Chubb Group Limited75–100%
- Chubb Group Security Limited75–100%
- Security Monitoring Centres Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (1)
- Mentor Business Systems LimitedFigures not disclosed
Sister companies (1)
- Chubb Fire & Security LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from accounts for the year to 31 Dec 2025 (profit £8.8m), from the Companies House accounts bulk data published Oct 2026. Spotted an error? Request a correction.
Updated from Companies House on 18 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.