How much does CLM Fireproofing Limited make?

CLM Fireproofing Limited reported revenue of £27.4m and £439k profit in the year to 30 Apr 2025, according to its accounts filed at Companies House.

How many employees does CLM Fireproofing Limited have?

CLM Fireproofing Limited reported an average of 82 employees in the year to 30 Apr 2025.

Is CLM Fireproofing Limited profitable?

Yes — CLM Fireproofing Limited reported a profit of £439k in the year to 30 Apr 2025.

Company No. 04418891 · Incorporated 17 Apr 2002

CLM Fireproofing Limited

Registered name: CLM FIREPROOFING LIMITED

Part of CLM UK Topco Limited group

CLM Fireproofing Limited made £27.4m revenue and £439k profit in the year to 30 Apr 2025. read from filing text

CLM Fireproofing Limited’s revenue grew 7% to £27.4m in the year to 30 Apr 2025, with £439k profit and 82 employees. The company is classified under “construction of domestic buildings” and is based in Sevenoaks; we hold 4 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 41202Construction of domestic buildings

Status: Active
Location: Sevenoaks, South East
Age: 24 yrs · since 2002
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. From the filing: “The immediate parent undertaking is CLM Group Limited.”

Latest accounts · year to 30 Apr 2025

Key figures

Capital-lightOperating leverageCash flow filed

Revenue

£27.4m

Growth ▲6.6%

Profit

£439k

Growth ▲327%

Profit margin

1.6%

Gross 29.5%

Employees

Change ▲13.9%

Profit / employee

£5.4k

Revenue/employee £334k

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 to	30 Apr 2022	30 Apr 2023	30 Apr 2024	30 Apr 2025
Disclosure	Profit only	Profit only	Full P&Lread from filing text	Full P&Lread from filing text
Profit & loss
Revenue (turnover)	—	—	£25.7m	£27.4m
Cost of sales	—	—	£18.3m	£19.3m
Gross profit	—	—	£7.3m	£8.1m
Operating profit	—	—	£161k	£707k
Profit before tax	—	—	£82.9k	£604k
Profit after tax	£357k	£2.6m	£103k	£439k
Profit (best available)	£357k	£2.6m	£103k	£439k
Staff costs	—	—	£4.5m	£5.4m
Employees (average)	40	55	72	82
Ratios
Profit margin	—	—	0.4%	1.6%
Gross margin	—	—	28.6%	29.5%
Revenue per employee	—	—	£357k	£334k
Profit per employee	£8.9k	£46.4k	£1.4k	£5.4k
Cash conversion	—	—	−21.5%	−3.1%
Growth (year on year)
Revenue growth	—	—	—	▲6.6%
Profit growth	—	▲616.1%	▼96%	▲327%
Headcount growth	—	▲37.5%	▲30.9%	▲13.9%
Balance sheet — indirect signals, not revenue
Cash at bank	£289k	£2.4m	£1.3m	£1.3m
Net assets	£1.5m	£4m	£3.3m	£3.8m
Fixed assets	£375k	£724k	£915k	£855k
Current assets	£4.6m	£7.9m	£7.3m	£8.7m
Debtors	£3.8m	£4.5m	£1.3m	£2.3m
Deferred income	—	—	£2.1m	£1.3m
Cash from operations	—	—	−£34.5k	−£22.1k
Source	Accounts · bulk data Nov 2023	Accounts · bulk data Nov 2023	FullAccounts · bulk data Jan 2026	FullAccounts · bulk data Jan 2026

Derived from the latest filing

How the business works

Profit margin: 1.6%; Profit ÷ revenue.
Gross margin: 29.5%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £334k; Revenue ÷ average employees.
Profit per employee: £5.4k; Profit ÷ average employees.
Cash conversion: −3.1%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 3.1%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 4.9%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 8.5%; 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: ▲13%; Now £3.8m
Cash at bank: ▲2%; Now £1.3m
Headcount: ▲14%; Now 82
Deferred income: ▼38%; Now £1.3m
Fixed assets: ▼7%; Now £855k

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

CLM UK Topco Limitedultimate parent75–100%
CLM UK Midco Limited75–100%
CLM UK Bidco Limited75–100%
CLM Group Limited75–100%
CLM Fireproofing Limitedthis company

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

Sister companies (1)

CLM Fire Consultancy LimitedRev. — · Profit £0

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 30 Apr 2025 (profit £439k), from the Companies House accounts bulk data published Jan 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.