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Company No. 09040212 · Incorporated 14 May 2014

Kelmarsh Wind Farm Limited

Registered name: KELMARSH WIND FARM LIMITED

Part of Cubico Sustainable Investments GP 1 Limited group

Kelmarsh Wind Farm Limited made £3.5m revenue and £818k profit in the year to 31 Dec 2025.

Kelmarsh Wind Farm Limited’s revenue fell 10% to £3.5m in the year to 31 Dec 2025, with £818k profit. The company is classified under “production of electricity” and is based in London; we hold 3 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
12 yrs · since 2014
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

Revenue
£3.5m
Growth ▼9.7%
Profit
£818k
Growth ▲1.5%
Profit margin
23.1%
Gross 38.6%
Employees
—
Change —
Profit / employee
—
 
Profitable streak
3yrs
Consecutive profitable years in our data

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

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)£4.6m£3.9m£3.5m
Cost of sales−£1.7m−£1.9m−£2.2m
Gross profit£2.9m£2.1m£1.4m
Operating profit£2.1m£1.4m£1.3m
Profit before tax£1.7m£1.1m£1.1m
Profit after tax£1.2m£806k£818k
Profit (best available)£1.2m£806k£818k
Employees (average)———
Ratios
Profit margin27.2%20.5%23.1%
Gross margin63.6%52.8%38.6%
Growth (year on year)
Revenue growth—▼14.3%▼9.7%
Profit growth—▼35.2%▲1.5%
Balance sheet — indirect signals, not revenue
Net assets———
SourceAccounts · bulk data Aug 2025Accounts · bulk data Aug 2025Accounts · bulk data Sep 2026
Derived from the latest filing

How the business works

Profit margin
23.1%
Profit ÷ revenue.
Gross margin
38.6%
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. Cubico Sustainable Investments GP 1 Limitedultimate parent75–100%
  2. Cubico Sustainable Investments GP 2 Limited75–100%
  3. Cubico Sustainable Investments Holdings Limited75–100%
  4. Cubico Sustainable Investments Limited75–100%
  5. Cubico Holdings (UK) Limited50–75%
  6. Cubico Holdings (UK) 2 Limited75–100%
  7. Kelmarsh Wind Farm Limitedthis company

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

Sister companies (14)

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 accounts for the year to 31 Dec 2025 (profit £818k), from the Companies House accounts bulk data published Sep 2026. Spotted an error? Request a correction.

Updated from Companies House on 12 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.