Seal Security UK Limited
Registered name: SEAL SECURITY UK LIMITED
Seal Security UK Limited made £5.1m revenue and a £4.5m loss in the year to 31 Dec 2022.
Seal Security UK Limited’s revenue fell 41% to £5.1m in the year to 31 Dec 2022, with a loss of £4.5m and 86 employees. The company is classified under “public order and safety activities” and is based in Cardiff; we hold 2 years of its filed accounts.
- Status
- Active - Proposal to Strike off
- Location
- Cardiff, Wales
- Age
- 20 yrs · since 2006
- 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 Dec 2021 | 31 Dec 2022 |
|---|---|---|
| Disclosure | Full P&L | Full P&L |
| Profit & loss | ||
| Revenue (turnover) | £8.7m | £5.1m |
| Cost of sales | £8.5m | £4.9m |
| Gross profit | £215k | £182k |
| Operating profit | −£224k | −£394k |
| Profit before tax | −£251k | −£4.5m |
| Profit after tax | −£251k | −£4.5m |
| Profit (best available) | −£251k | −£4.5m |
| Staff costs | £6.3m | £3.8m |
| Employees (average) | 141 | 86 |
| Ratios | ||
| Profit margin | −2.9% | −88.1% |
| Gross margin | 2.5% | 3.5% |
| Revenue per employee | £61.9k | £59.5k |
| Profit per employee | −£1.8k | −£52.4k |
| Growth (year on year) | ||
| Revenue growth | — | ▼41.4% |
| Headcount growth | — | ▼39% |
| Balance sheet — indirect signals, not revenue | ||
| Cash at bank | £135k | £22.1k |
| Net assets | £3.7m | −£817k |
| Current assets | £7.2m | £77.7k |
| Debtors | £2.2m | £55.5k |
| Deferred income | £918k | £110k |
| Cash from operations | −£1.8m | −£30.6k |
| Source | FullAccounts · bulk data Feb 2026 | FullAccounts · bulk data Feb 2026 |
How the business works
- Profit margin
- −88.1%
- Profit ÷ revenue.
- Gross margin
- 3.5%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £59.5k
- Revenue ÷ average employees.
- Profit per employee
- −£52.4k
- 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
- 2.1%
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 1.1%
- 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
- ▼122%
- Now −£817k
- Cash at bank
- ▼84%
- Now £22.1k
- Headcount
- ▼39%
- Now 86
- Deferred income
- ▼88%
- Now £110k
- Fixed assets
- —
- Now —
Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.
Similar profitable businesses
Sources
Latest figures from FullAccounts for the year to 31 Dec 2022 (profit −£4.5m), from the Companies House accounts bulk data published Feb 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.