Alert Health 24 Limited
Registered name: ALERT HEALTH 24 LIMITED
Part of Blackwater Capital Holdings Limited groupAlert Health 24 Limited made £2m revenue and a £51.3k loss in the year to 30 Sep 2025.
Alert Health 24 Limited’s revenue fell 66% to £2m in the year to 30 Sep 2025, with a loss of £51.3k and 7 employees. The company is classified under “temporary employment agency activities” and is based in Harrow; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Harrow, London
- Age
- 11 yrs · since 2014
- 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 | 30 Sep 2022 | 30 Sep 2023 | 30 Sep 2024 | 30 Sep 2025 |
|---|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | £5.3m | £8.4m | £6m | £2m |
| Cost of sales | £3.6m | £5.7m | £4.2m | £1.5m |
| Gross profit | £1.7m | £2.7m | £1.8m | £524k |
| Operating profit | — | — | £383k | −£60.1k |
| Profit before tax | £921k | £1.3m | £391k | −£51.3k |
| Profit after tax | £745k | £1m | £293k | −£51.3k |
| Profit (best available) | £745k | £1m | £293k | −£51.3k |
| Staff costs | £589k | £1m | — | — |
| Employees (average) | 18 | 23 | 23 | 7 |
| Ratios | ||||
| Profit margin | 14% | 12.4% | 4.9% | −2.5% |
| Gross margin | 31.9% | 32.2% | 29.2% | 25.9% |
| Revenue per employee | £296k | £367k | £261k | £288k |
| Profit per employee | £41.4k | £45.5k | £12.8k | −£7.3k |
| Growth (year on year) | ||||
| Revenue growth | — | ▲58% | ▼28.8% | ▼66.4% |
| Profit growth | — | ▲40.3% | ▼72% | ▼117.5% |
| Headcount growth | — | ▲27.8% | 0% | ▼69.6% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £73.4k | £43.7k | — | — |
| Net assets | £413k | £361k | — | — |
| Fixed assets | £843 | £633 | — | — |
| Current assets | £1.2m | £1.2m | — | — |
| Debtors | £1.1m | £1m | — | — |
| Deferred income | £39.8k | £9.7k | — | — |
| Cash from operations | −£317k | −£1.3m | — | — |
| Source | FullAccounts · bulk data Oct 2024 | FullAccounts · bulk data Oct 2024 | Accounts · bulk data Oct 2025 | Accounts · bulk data Oct 2026 |
How the business works
- Profit margin
- −2.5%
- Profit ÷ revenue.
- Gross margin
- 25.9%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £288k
- Revenue ÷ average employees.
- Profit per employee
- −£7.3k
- 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
- ▼70%
- Now 7
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- Blackwater Capital Holdings Limited (registered outside the UK register)ultimate parent75–100%
- Greencastle Holdings Limited75–100%
- Alert Health 24 Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (14)
- Coyle Personnel LimitedRev. £113m · Profit £2.5m
- Direct Healthcare 24 LimitedRev. £22.5m · Profit £3m
- Greencastle Solutions (UK) LimitedRev. £20.1m · Profit £12.9k
- Nutrix Personnel LimitedRev. £16.7m · Profit £734k
- Mayday Healthcare LimitedRev. £16.6m · Profit £719k
- Plan B Healthcare LimitedRev. £6.9m · Profit £349k
- Zentro Solutions LimitedRev. £4.2m · Profit £344k
- Genesis Health Partners LimitedRev. £3.5m · Profit £215k
- Bridgeway Care Solutions LimitedRev. £2.4m · Profit £77.7k
- Change Education LimitedRev. £611k · Profit −£217k
- Panther Software LimitedRev. £574k · Profit £269k
- Coyle Family Investments LtdRev. £0 · Profit £772k
- Amc Professional LimitedFigures not disclosed
- Luna Care Holdings LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from accounts for the year to 30 Sep 2025 (profit −£51.3k), from the Companies House accounts bulk data published Oct 2026. Spotted an error? Request a correction.
Updated from Companies House on 23 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.