How much does The British Rototherm Company Limited make?

The British Rototherm Company Limited reported revenue of £12.1m and £2.4m profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does The British Rototherm Company Limited have?

The British Rototherm Company Limited reported an average of 101 employees in the year to 31 Dec 2025.

Is The British Rototherm Company Limited profitable?

Yes — The British Rototherm Company Limited reported a profit of £2.4m in the year to 31 Dec 2025.

Company No. 02570730 · Incorporated 24 Dec 1990

The British Rototherm Company Limited

Registered name: THE BRITISH ROTOTHERM COMPANY LIMITED

Part of Melius Holdings Ltd group

The British Rototherm Company Limited made £12.1m revenue and £2.4m profit in the year to 31 Dec 2025.

The British Rototherm Company Limited’s revenue grew 11% to £12.1m in the year to 31 Dec 2025, with £2.4m profit and 101 employees. The company is classified under “manufacture of electronic components” and is based in West Glamorgan; we hold 5 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 26110Manufacture of electronic components SIC 26120Manufacture of loaded electronic boards SIC 32990Other manufacturing n.e.c.

Status: Active
Location: West Glamorgan, Wales
Age: 35 yrs · since 1990
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

Operating leverageDoing more with less

Revenue

£12.1m

Growth ▲10.7%

Profit

£2.4m

Growth ▲133.4%

Profit margin

20.1%

Gross 41.2%

Employees

101

Change ▼6.5%

Profit / employee

£24.1k

Revenue/employee £120k

Profitable streak

2yrs

Consecutive profitable years in our data

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

5 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 Dec 2021	31 Dec 2022	31 Dec 2023	31 Dec 2024	31 Dec 2025
Disclosure	Full P&Lread from filing text	Full P&Lread from filing text	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£11.3m	£11.8m	£10.2m	£11m	£12.1m
Cost of sales	£8.5m	£10.1m	£9.1m	£7.9m	£7.1m
Gross profit	£2.7m	£1.7m	£1.2m	£3m	£5m
Operating profit	£1.6m	£430k	−£435k	£679k	£2.6m
Profit before tax	£1.6m	£426k	−£449k	£1.1m	£2.6m
Profit after tax	£1.3m	£596k	−£352k	£1m	£2.4m
Profit (best available)	£1.3m	£596k	−£352k	£1m	£2.4m
Staff costs	£3.3m	£3.8m	£3.6m	£3.7m	£2.8m
Employees (average)	134	130	115	108	101
Ratios
Profit margin	11.1%	5.1%	−3.4%	9.5%	20.1%
Gross margin	24.3%	14.5%	11.3%	27.5%	41.2%
Revenue per employee	£84.2k	£90.5k	£89k	£101k	£120k
Profit per employee	£9.3k	£4.6k	−£3.1k	£9.7k	£24.1k
Growth (year on year)
Revenue growth	—	▲4.3%	▼13%	▲7.1%	▲10.7%
Profit growth	—	▼52.3%	▼159.1%	—	▲133.4%
Headcount growth	—	▼3%	▼11.5%	▼6.1%	▼6.5%
Balance sheet — indirect signals, not revenue
Cash at bank	£1m	£502k	£552k	£878k	£264k
Net assets	£5.1m	£5.7m	£5.4m	£6.4m	£8.9m
Fixed assets	£2.9m	£3m	£2.9m	£2.8m	£3.6m
Current assets	£5.1m	£6.6m	£5.9m	£6.2m	£8m
Debtors	£1.2m	£1.6m	£1.4m	£1.4m	£1.5m
Deferred income	£25.4k	£46.1k	£39.2k	£183k	£271k
Source	Accounts · bulk data Dec 2023	Accounts · bulk data Dec 2023	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Sep 2025	FullAccounts · bulk data Sep 2026

Derived from the latest filing

How the business works

Profit margin: 20.1%; Profit ÷ revenue.
Gross margin: 41.2%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £120k; Revenue ÷ average employees.
Profit per employee: £24.1k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 29.7%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 2.2%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 12.7%; 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: ▲38%; Now £8.9m
Cash at bank: ▼70%; Now £264k
Headcount: ▼6%; Now 101
Deferred income: ▲48%; Now £271k
Fixed assets: ▲28%; Now £3.6m

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

Melius Holdings Ltd (registered outside the UK register)ultimate parent75–100%
Rototherm Group Limited75–100%
The British Rototherm Company Limitedthis company

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

Subsidiaries (3)

Bentley Instrument Company LimitedRev. — · Profit £13.5k
Mainstream Measurements LimitedFigures not disclosed
Micronics LimitedFigures 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 FullAccounts for the year to 31 Dec 2025 (profit £2.4m), from the Companies House accounts bulk data published Sep 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.