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Company No. 02656561 · Incorporated 23 Oct 1991

Celtpower Limited

Registered name: CELTPOWER LIMITED

Part of Iberdrola Sa group

Celtpower Limited made £4.8m revenue and £1.2m profit in the year to 31 Dec 2025.

Celtpower Limited’s revenue grew 20% to £4.8m in the year to 31 Dec 2025, with £1.2m profit. The company is classified under “production of electricity”; we hold 3 years of its filed accounts.

Full P&L filedSIC 35110Production of electricity
Status
Active
Age
35 yrs · since 1991
Type
Private Limited Company
Latest accounts · year to 31 Dec 2025

Key figures

Revenue
£4.8m
Growth ▲20.4%
Profit
£1.2m
Growth ▼18.6%
Profit margin
24.3%
Gross 96.7%
Employees
—
Change —
Profit / employee
—
 
Profitable streak
3yrs
Consecutive profitable years in our data
3 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Dec 202331 Dec 202431 Dec 2025
DisclosureFull P&LFull P&LFull P&L
Profit & loss
Revenue (turnover)£5.6m£4m£4.8m
Cost of sales−£203k−£163k−£158k
Gross profit£5.3m£3.9m£4.7m
Operating profit£3m£1.3m£1.2m
Profit before tax£3.1m£2m£1.9m
Profit after tax£2.3m£1.4m£1.2m
Profit (best available)£2.3m£1.4m£1.2m
Employees (average)———
Ratios
Profit margin41.2%35.9%24.3%
Gross margin96.3%96%96.7%
Growth (year on year)
Revenue growth—▼27.5%▲20.4%
Profit growth—▼36.9%▼18.6%
Balance sheet — indirect signals, not revenue
Net assets———
SourceAccounts · bulk data Oct 2025Accounts · bulk data Oct 2025Accounts · bulk data Oct 2026
Derived from the latest filing

How the business works

Profit margin
24.3%
Profit ÷ revenue.
Gross margin
96.7%
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.
Indirect — not revenue

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 —
Corporate ownership

Group structure

Ownership chain

  1. Iberdrola Sa (registered outside the UK register)ultimate parent75–100%
  2. SPW Investments Limited75–100%
  3. Scottish Power Limited75–100%
  4. Scottish Power UK PLC75–100%
  5. Scottishpower Renewable Energy Limited75–100%
  6. Scottishpower Renewables (UK) Limited75–100%
  7. Celtpower Limitedthis company

Bands show the share of ownership each company holds in the one below it.

Sister companies (22)

Minority corporate shareholders

From the Persons with Significant Control register (corporate controllers only).

Sources

Companies House profile Filing history & original accounts

Latest figures from accounts for the year to 31 Dec 2025 (profit £1.2m), from the Companies House accounts bulk data published Oct 2026. Spotted an error? Request a correction.

Updated from Companies House on 17 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.