Sustainable Energy Generation Limited
Registered name: SUSTAINABLE ENERGY GENERATION LIMITED
Part of Engie S.A. groupSustainable Energy Generation Limited made £13.5m revenue and £1.8m profit in the year to 31 Dec 2024.
Sustainable Energy Generation Limited’s revenue grew 29% to £13.5m in the year to 31 Dec 2024, with £1.8m profit and 0 employees. The company is classified under “manufacture of gas” and is based in London; we hold 2 years of its filed accounts.
- Status
- Active
- Location
- London, London
- Age
- 12 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. From the filing: “ENGIE Renewable Gases UK Limited”
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 |
|---|---|---|
| Disclosure | Full P&L | Full P&L |
| Profit & loss | ||
| Revenue (turnover) | £10.5m | £13.5m |
| Cost of sales | £4.9m | £7.1m |
| Gross profit | £5.6m | £6.4m |
| Operating profit | £2.7m | £2.2m |
| Profit before tax | £2m | £2.1m |
| Profit after tax | £1.6m | £1.8m |
| Profit (best available) | £1.6m | £1.8m |
| Employees (average) | 0 | 0 |
| Ratios | ||
| Profit margin | 15.3% | 13.3% |
| Gross margin | 53.3% | 47.2% |
| Growth (year on year) | ||
| Revenue growth | — | ▲29% |
| Profit growth | — | ▲12.1% |
| Balance sheet — indirect signals, not revenue | ||
| Net assets | £4.6m | £6.4m |
| Current assets | £6.4m | £10.3m |
| Debtors | £243k | £19.2k |
| Source | FullAccounts · bulk data Sep 2026 | FullAccounts · bulk data Sep 2026 |
How the business works
- Profit margin
- 13.3%
- Profit ÷ revenue.
- Gross margin
- 47.2%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- —
- Revenue ÷ average employees.
- Profit per employee
- —
- 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
- 0.1%
- 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
- ▲39%
- Now £6.4m
- Cash at bank
- —
- Now —
- Headcount
- —
- Now 0
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- Engie S.A. (registered outside the UK register)ultimate parent75–100%
- Engie Renewable Gases UK Limited75–100%
- Sustainable Energy Generation Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (6)
- Condate Biogas LimitedRev. £9.9m · Profit £1.2m
- Gorst Energy LimitedRev. £8.9m · Profit −£76k
- Deal Farm Biogas LimitedFigures not disclosed
- Halstow Energy LimitedFigures not disclosed
- Lambourne Energy LimitedFigures not disclosed
- Pearmain Energy LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Similar profitable businesses
Sources
Latest figures from FullAccounts for the year to 31 Dec 2024 (profit £1.8m), 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.