11:FS Foundry Limited
Registered name: 11:FS FOUNDRY LIMITED
Part of 11:FS Holdings Ltd group11:FS Foundry Limited made £72.9k revenue and a £2.3m loss in the year to 31 Dec 2025.
11:FS Foundry Limited’s revenue was £72.9k in the year to 31 Dec 2025, with a loss of £2.3m and 20 employees. The company is classified under “business and domestic software development” and is based in London; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- London, London
- Age
- 8 yrs · since 2018
- Type
- Private Limited Company
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 | 31 Dec 2022 | 31 Dec 2023 | 31 Dec 2024 | 31 Dec 2025 |
|---|---|---|---|---|
| Disclosure | No P&L | No P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | — | — | −£44.3k | £72.9k |
| Cost of sales | — | — | £751k | £2.3m |
| Gross profit | — | — | −£796k | −£2.2m |
| Profit before tax | — | — | £530k | −£2.4m |
| Profit after tax | — | — | £847k | −£2.3m |
| Profit (best available) | — | — | £847k | −£2.3m |
| Employees (average) | 9 | 3 | 3 | 20 |
| Ratios | ||||
| Profit margin | — | — | −1913% | −3214% |
| Gross margin | — | — | 1797% | −3041% |
| Revenue per employee | — | — | −£14.8k | £3.6k |
| Profit per employee | — | — | £282k | −£117k |
| Growth (year on year) | ||||
| Profit growth | — | — | — | ▼376.7% |
| Headcount growth | — | ▼66.7% | 0% | ▲566.7% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £43.9k | £7.2k | £10.3k | £17.7k |
| Net assets | −£536k | −£942k | −£95.4k | −£2.4m |
| Fixed assets | £2.4k | £1k | — | £8.9k |
| Current assets | £72.5k | £74.5k | £356k | £61.2k |
| Debtors | £28.6k | £44.3k | £346k | £43.4k |
| Source | FilletedAccounts · bulk data Apr 2025 | FilletedAccounts · bulk data Apr 2025 | FilletedAccounts · bulk data Dec 2025 | FullAccounts · bulk data Sep 2026 |
How the business works
- Profit margin
- −3214%
- Profit ÷ revenue.
- Gross margin
- −3041%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £3.6k
- Revenue ÷ average employees.
- Profit per employee
- −£117k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 12.3%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 59.6%
- 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 −£2.4m
- Cash at bank
- ▲72%
- Now £17.7k
- Headcount
- ▲567%
- Now 20
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now £8.9k
Group structure
Ownership chain
- 11:FS Holdings Ltdultimate parent75–100%
- 11:FS Foundry Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (1)
- Kinsworth Services LtdFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Similar profitable businesses
- R&a Consulting and Brokerage Services LtdBelfast · Business and domestic software development
- Revenue
- £100k
- Profit
- £59.3k
- Staff
- 1
- Mzek LimitedCroydon · Business and domestic software development
- Revenue
- £101k
- Profit
- £55.9k
- Staff
- 2
- Kerckhoffs LtdSunderland · Business and domestic software development
- Revenue
- £101k
- Profit
- £2.4k
- Staff
- 4
- Mounce Hydrosmart LtdBeverley · Business and domestic software development
- Revenue
- £102k
- Profit
- £50k
- Staff
- 2
- Tritium Associates LimitedGlasgow · Business and domestic software development
- Revenue
- £102k
- Profit
- £30.9k
- Staff
- 1
- Gochi Groups LimitedBirmingham · Business and domestic software development
- Revenue
- £103k
- Profit
- £22.1k
- Staff
- 3
Sources
Latest figures from FullAccounts for the year to 31 Dec 2025 (profit −£2.3m), 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.