How much does RSJ One Energy Limited make?

RSJ One Energy Limited reported revenue of £570k and £264k profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

Is RSJ One Energy Limited profitable?

Yes — RSJ One Energy Limited reported a profit of £264k in the year to 31 Dec 2025.

Company No. 08305380 · Incorporated 23 Nov 2012

RSJ One Energy Limited

Registered name: RSJ ONE ENERGY LIMITED

Part of Bae Systems PLC group

RSJ One Energy Limited made £570k revenue and £264k profit in the year to 31 Dec 2025.

RSJ One Energy Limited’s revenue fell 11% to £570k in the year to 31 Dec 2025, with £264k profit. The company is classified under “production of electricity” and is based in Preston; 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: Preston, North West
Age: 13 yrs · since 2012
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

£570k

Growth ▼11.1%

Profit

£264k

Growth ▼46%

Profit margin

46.4%

Gross 100%

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 to	31 Dec 2023	31 Dec 2024	31 Dec 2025
Disclosure	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£814k	£641k	£570k
Gross profit	£814k	£641k	£570k
Operating profit	£643k	£446k	£345k
Profit before tax	£643k	£442k	£353k
Profit after tax	£492k	£490k	£264k
Profit (best available)	£492k	£490k	£264k
Employees (average)	—	—	—
Ratios
Profit margin	60.4%	76.5%	46.4%
Gross margin	100%	100%	100%
Growth (year on year)
Revenue growth	—	▼21.3%	▼11.1%
Profit growth	—	▼0.4%	▼46%
Balance sheet — indirect signals, not revenue
Net assets	—	—	—
Source	Accounts · bulk data Sep 2025	Accounts · bulk data Sep 2025	Accounts · bulk data Sep 2026

Derived from the latest filing

How the business works

Profit margin: 46.4%; Profit ÷ revenue.
Gross margin: 100%; 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

Bae Systems PLCultimate parent75–100%
Bae Systems Pension Funds Trustees Limited50–75%
Resonance British Wind South West Limited75–100%
RSJ One Energy Limitedthis company

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

Sister companies (1)

Port 1960 LtdFigures not disclosed

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

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Sources

Companies House profile Filing history & original accounts

Latest figures from accounts for the year to 31 Dec 2025 (profit £264k), 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.