UK Energy Reserve Limited
Registered name: UK ENERGY RESERVE LIMITED
Part of Sembcorp Energy UK Limited groupUK Energy Reserve Limited made £10.1m revenue and a £457k loss in the year to 31 Dec 2025.
UK Energy Reserve Limited’s revenue grew 14% to £10.1m in the year to 31 Dec 2025, with a loss of £457k. The company is classified under “distribution of electricity” and is based in Middlesbrough; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Middlesbrough
- Age
- 10 yrs · since 2016
- Type
- Private Limited Company
Key figures
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) | £13.7m | £8.9m | £10.1m |
| Cost of sales | −£11m | −£9.9m | −£8.7m |
| Gross profit | £2.7m | −£981k | £1.5m |
| Operating profit | £952k | −£2.2m | £239k |
| Profit before tax | £114k | −£3m | −£610k |
| Profit after tax | £2k | −£2.3m | −£457k |
| Profit (best available) | £2k | −£2.3m | −£457k |
| Employees (average) | — | — | — |
| Ratios | |||
| Profit margin | 0% | −25.8% | −4.5% |
| Gross margin | 19.8% | −11% | 14.6% |
| Growth (year on year) | |||
| Revenue growth | — | ▼35.3% | ▲14.1% |
| Profit growth | — | ▼114700% | — |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Sep 2025 | Accounts · bulk data Sep 2025 | Accounts · bulk data Sep 2026 |
How the business works
- Profit margin
- −4.5%
- Profit ÷ revenue.
- Gross margin
- 14.6%
- 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
- —
- 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
- —
- Now —
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- Sembcorp Energy UK Limitedultimate parent75–100%
- Repono Holdco 1 Limited75–100%
- UK Energy Reserve Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (3)
- UK Capacity Reserve LimitedFigures not disclosed
- UK Power Reserve LimitedFigures not disclosed
- UK Utility Reserve 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 −£457k), from the Companies House accounts bulk data published Sep 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.