Dalkia Group Limited
Registered name: DALKIA GROUP LIMITED
Part of Edf Energy Services Limited groupDalkia Group Limited made £657m revenue and £10.5m profit in the year to 31 Dec 2025.
Dalkia Group Limited’s revenue grew 8% to £657m in the year to 31 Dec 2025, with £10.5m profit and 5,249 employees. The company is classified under “electrical installation” and is based in London; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- London, London
- Age
- 11 yrs · since 2015
- 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 2023 | 31 Dec 2024 | 31 Dec 2025 |
|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | £607m | £609m | £657m |
| Cost of sales | −£543m | −£529m | −£564m |
| Gross profit | £64.7m | £79.5m | £93m |
| Operating profit | £21.1m | £438k | £7.6m |
| Profit before tax | £21.5m | £312k | £8.2m |
| Profit after tax | £30.4m | £3.4m | £10.5m |
| Profit (best available) | £30.4m | £3.4m | £10.5m |
| Employees (average) | 4,019 | 4,064 | 5,249 |
| Ratios | |||
| Profit margin | 5% | 0.6% | 1.6% |
| Gross margin | 10.7% | 13.1% | 14.2% |
| Revenue per employee | £151k | £150k | £125k |
| Profit per employee | £7.6k | £841 | £2k |
| Growth (year on year) | |||
| Revenue growth | — | ▲0.3% | ▲7.8% |
| Profit growth | — | ▼88.8% | ▲206.9% |
| Headcount growth | — | ▲1.1% | ▲29.2% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Jul 2025 | Accounts · bulk data Jul 2025 | Accounts · bulk data Apr 2026 |
How the business works
- Profit margin
- 1.6%
- Profit ÷ revenue.
- Gross margin
- 14.2%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £125k
- Revenue ÷ average employees.
- Profit per employee
- £2k
- 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
- ▲29%
- Now 5,249
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- Edf Energy Services Limitedultimate parent75–100%
- Dalkia Group Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (6)
- Dalkia Energy Services LimitedFigures not disclosed
- Dalkia Engineering Holding LimitedFigures not disclosed
- Dalkia Operations Holding LimitedFigures not disclosed
- Dalkia UK Holding LimitedFigures not disclosed
- Essci Ireland LimitedFigures not disclosed
- Essci Technical Facilities Management LimitedFigures not disclosed
Sister companies (2)
- Imtech Aqua Maintenance LtdFigures not disclosed
- Inviron Property 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 £10.5m), from the Companies House accounts bulk data published Apr 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.