L51N Limited
Registered name: L51N LIMITED
L51N Limited made £97.9m revenue and £100k profit in the year to 31 Dec 2025.
L51N Limited’s revenue fell 2% to £97.9m in the year to 31 Dec 2025, with £100k profit and 99 employees. The company is classified under “activities of head offices” and is based in London; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- London, London
- Age
- 17 yrs · since 2009
- 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.
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
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) | £117m | £100m | £97.9m |
| Cost of sales | −£90.3m | −£76.5m | −£71.5m |
| Gross profit | £26.8m | £23.7m | £26.4m |
| Operating profit | −£21.2m | £109m | −£22.1m |
| Profit before tax | −£15.6m | £101m | £5m |
| Profit after tax | −£16.8m | £93.3m | £100k |
| Profit (best available) | −£16.8m | £93.3m | £100k |
| Employees (average) | 586 | 357 | 99 |
| Ratios | |||
| Profit margin | −14.3% | 93.1% | 0.1% |
| Gross margin | 22.9% | 23.6% | 27% |
| Revenue per employee | £200k | £281k | £989k |
| Profit per employee | −£28.7k | £261k | £1k |
| Growth (year on year) | |||
| Revenue growth | — | ▼14.4% | ▼2.3% |
| Profit growth | — | — | ▼99.9% |
| Headcount growth | — | ▼39.1% | ▼72.3% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Oct 2025 | Accounts · bulk data Oct 2025 | Accounts · bulk data Sep 2026 |
How the business works
- Profit margin
- 0.1%
- Profit ÷ revenue.
- Gross margin
- 27%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £989k
- Revenue ÷ average employees.
- Profit per employee
- £1k
- 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
- ▼72%
- Now 99
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Subsidiaries (1)
- Lewis Trust Group 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 £100k), from the Companies House accounts bulk data published Sep 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.