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Company No. 07377842 · Incorporated 16 Sep 2010

Astral Solar Ltd

Registered name: ASTRAL SOLAR LTD

Part of Octopus Energy Topco Limited group

Astral Solar Ltd made £214k revenue and £85.9k profit in the year to 31 Dec 2025.

Astral Solar Ltd’s revenue grew 26% to £214k in the year to 31 Dec 2025, with £85.9k profit and 3 employees. The company is classified under “production of electricity” and is based in London; we hold 4 years of its filed accounts.

Full P&L filedSection D · Electricity, gas, steam and air conditioning supplySIC 35110Production of electricity
Status
Active
Location
London, London
Age
16 yrs · since 2010
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.

Latest accounts · year to 31 Dec 2025

Key figures

Small teamOperating leverage
Revenue
£214k
Growth ▲25.9%
Profit
£85.9k
Growth ▲80.6%
Profit margin
40.2%
Gross 61.9%
Employees
3
Change 0%
Profit / employee
£28.6k
Revenue/employee £71.2k
Profitable streak
4yrs
Consecutive profitable years in our data

Badges are automated estimates derived from the filed figures — not statements of fact about the company.

4 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Dec 202231 Dec 202331 Dec 202431 Dec 2025
DisclosureFull P&LFull P&LFull P&LFull P&L
Profit & loss
Revenue (turnover)£159k£175k£170k£214k
Cost of sales£82.1k£80.7k£81.1k£81.5k
Gross profit£76.7k£94.4k£88.6k£132k
Operating profit£68.8k£76.7k£63.4k£115k
Profit before tax£68.8k£76.7k£63.4k£115k
Profit after tax£51.6k£57.4k£47.6k£85.9k
Profit (best available)£51.6k£57.4k£47.6k£85.9k
Employees (average)4433
Ratios
Profit margin32.5%32.8%28%40.2%
Gross margin48.3%53.9%52.2%61.9%
Revenue per employee£39.7k£43.8k£56.5k£71.2k
Profit per employee£12.9k£14.4k£15.9k£28.6k
Growth (year on year)
Revenue growth—▲10.2%▼3.1%▲25.9%
Profit growth—▲11.3%▼17.2%▲80.6%
Headcount growth—0%▼25%0%
Balance sheet — indirect signals, not revenue
Cash at bank—£57.9k£63.1k£64.8k
Net assets£1.9m£2m£2m£2.1m
Fixed assets£745k£684k£623k£566k
Current assets£1.2m£1.4m£1.5m£1.7m
Debtors£1.2m£1.3m£1.5m£1.6m
Deferred income—£7.3k£11.2k£14.1k
SourceFullAccounts · bulk data Oct 2024FullAccounts · bulk data Oct 2024FullAccounts · bulk data Oct 2025FullAccounts · bulk data Aug 2026
Derived from the latest filing

How the business works

Profit margin
40.2%
Profit ÷ revenue.
Gross margin
61.9%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£71.2k
Revenue ÷ average employees.
Profit per employee
£28.6k
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
265.2%
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
6.6%
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
764.2%
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
▲4%
Now £2.1m
Cash at bank
▲3%
Now £64.8k
Headcount
0%
Now 3
Deferred income
▲25%
Now £14.1k
Fixed assets
▼9%
Now £566k

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

Corporate ownership

Group structure

Ownership chain

  1. Octopus Energy Topco Limitedultimate parent75–100%
  2. Octopus Energy Group Limited75–100%
  3. Octopus Energy Generation Limited75–100%
  4. Octopus Energy Generation Fund Management Holdings Limited75–100%
  5. Octopus Renewables Limited75–100%
  6. Reip IV Holdings Limited75–100%
  7. Reip IV Midco Limited50–75%
  8. Sunstone Bidco Limited75–100%
  9. Sunlight Technology Limited75–100%
  10. Astral Solar Ltdthis company

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

Sister companies (6)

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

Same industry, similar size

Similar profitable businesses

Industry benchmarks →

Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Dec 2025 (profit £85.9k), from the Companies House accounts bulk data published Aug 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.