Welsh Power Group Limited
Registered name: WELSH POWER GROUP LIMITED
Part of Cel Trustee Limited groupWelsh Power Group Limited made £7.8m revenue and £4.2m profit in the year to 31 Mar 2025. read from filing text
Welsh Power Group Limited’s revenue grew 19% to £7.8m in the year to 31 Mar 2025, with £4.2m profit and 51 employees. The company is classified under “activities of head offices” and is based in Cardiff; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Cardiff, Wales
- Age
- 20 yrs · since 2006
- 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: “The”
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 Mar 2022 | 31 Mar 2023 | 31 Mar 2024 | 31 Mar 2025 |
|---|---|---|---|---|
| Disclosure | No P&L | Full P&Lread from filing text | Full P&Lread from filing text | Full P&Lread from filing text |
| Profit & loss | ||||
| Revenue (turnover) | — | £13.1m | £6.6m | £7.8m |
| Cost of sales | — | £125k | £5k | £10k |
| Gross profit | — | £13m | £6.6m | £7.8m |
| Operating profit | — | £7.9m | £567k | £1.3m |
| Profit before tax | — | £11.7m | £3.4m | £4.5m |
| Profit after tax | — | £10.1m | £3.3m | £4.2m |
| Profit (best available) | — | £10.1m | £3.3m | £4.2m |
| Staff costs | — | £3.3m | £4.2m | £4.3m |
| Employees (average) | 38 | 47 | 51 | 51 |
| Ratios | ||||
| Profit margin | — | 77.1% | 50.2% | 53.8% |
| Gross margin | — | 99% | 99.9% | 99.9% |
| Revenue per employee | — | £278k | £129k | £153k |
| Profit per employee | — | £215k | £64.7k | £82.4k |
| Growth (year on year) | ||||
| Revenue growth | — | — | ▼49.7% | ▲18.7% |
| Profit growth | — | — | ▼67.3% | ▲27.3% |
| Headcount growth | — | ▲23.7% | ▲8.5% | 0% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £1.1m | £3.1m | £2.2m | £2.6m |
| Net assets | £4.7m | £4m | £3.3m | £3.6m |
| Fixed assets | £60k | £67k | £100k | £89k |
| Current assets | £6.3m | £7.6m | £4.4m | £4.7m |
| Debtors | £2.3m | £914k | £1.5m | £1m |
| Deferred income | £455k | £779k | £474k | £375k |
| Source | FullAccounts · bulk data Dec 2023 | FullAccounts · bulk data Dec 2023 | FullAccounts · bulk data Dec 2024 | FullAccounts · bulk data Dec 2025 |
How the business works
- Profit margin
- 53.8%
- Profit ÷ revenue.
- Gross margin
- 99.9%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £153k
- Revenue ÷ average employees.
- Profit per employee
- £82.4k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 1.1%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- 4.8%
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 13%
- 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
- ▲8%
- Now £3.6m
- Cash at bank
- ▲18%
- Now £2.6m
- Headcount
- 0%
- Now 51
- Deferred income
- ▼21%
- Now £375k
- Fixed assets
- ▼11%
- Now £89k
Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.
Group structure
Ownership chain
- Cel Trustee Limitedultimate parent75–100%
- Carron Energy Limited75–100%
- Welsh Power Group Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (15)
- Grid Stability Services LtdFigures not disclosed
- Northern Grid Services LimitedFigures not disclosed
- Northern Grid Stability Services LimitedFigures not disclosed
- WP Grid Services LimitedFigures not disclosed
- WP Grid Storage 10 LimitedFigures not disclosed
- WP Grid Storage 11 LimitedFigures not disclosed
- WP Grid Storage 12 LimitedFigures not disclosed
- WP Grid Storage 2 LimitedFigures not disclosed
- WP Grid Storage 3 LimitedFigures not disclosed
- WP Grid Storage 4 LimitedFigures not disclosed
- WP Grid Storage 5 LimitedFigures not disclosed
- WP Grid Storage 6 LimitedFigures not disclosed
- WP Grid Storage 7 LimitedFigures not disclosed
- WP Grid Storage 8 LimitedFigures not disclosed
- WP Grid Storage 9 LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £4.2m), from the Companies House accounts bulk data published Dec 2025. 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.