Coolkeeragh Esb Limited
Registered name: COOLKEERAGH ESB LIMITED
Part of The Government Of Ireland groupCoolkeeragh Esb Limited made £196m revenue and a £7.9m loss in the year to 31 Dec 2025.
Coolkeeragh Esb Limited’s revenue fell 38% to £196m in the year to 31 Dec 2025, with a loss of £7.9m. The company is classified under “production of electricity” and is based in Londonderry; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Londonderry
- Age
- 24 yrs · since 2001
- 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) | £320m | £317m | £196m |
| Cost of sales | −£282m | −£260m | −£166m |
| Gross profit | £37.7m | £56.8m | £29.7m |
| Operating profit | £21.3m | £26.5m | −£8.8m |
| Profit before tax | £21m | £26m | −£9.2m |
| Profit after tax | £15.9m | £19.3m | −£7.9m |
| Profit (best available) | £15.9m | £19.3m | −£7.9m |
| Employees (average) | — | — | — |
| Ratios | |||
| Profit margin | 5% | 6.1% | −4% |
| Gross margin | 11.8% | 17.9% | 15.1% |
| Growth (year on year) | |||
| Revenue growth | — | ▼1% | ▼38.1% |
| Profit growth | — | ▲20.8% | ▼141% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Oct 2025 | Accounts · bulk data Oct 2025 | Accounts · bulk data Oct 2026 |
How the business works
- Profit margin
- −4%
- Profit ÷ revenue.
- Gross margin
- 15.1%
- 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
- The Government Of Ireland (registered outside the UK register)ultimate parent75–100%
- Esb Group (UK) Limited75–100%
- Esb Asset Development UK Limited75–100%
- Coolkeeragh Esb Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (6)
- Crockagarran Wind Farm LtdFigures not disclosed
- Curryfree Wind Farm LimitedFigures not disclosed
- Devon Wind Power LimitedFigures not disclosed
- Esb Solar (Northern Ireland) LimitedFigures not disclosed
- Facility Management UK LimitedFigures not disclosed
- Hunter's Hill Wind Farm 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 −£7.9m), from the Companies House accounts bulk data published Oct 2026. Spotted an error? Request a correction.
Updated from Companies House on 22 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.