How much does Siderise Insulation Limited make?

Siderise Insulation Limited reported revenue of £45.7m and £5m profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Siderise Insulation Limited have?

Siderise Insulation Limited reported an average of 138 employees in the year to 31 Dec 2025.

Is Siderise Insulation Limited profitable?

Yes — Siderise Insulation Limited reported a profit of £5m in the year to 31 Dec 2025.

Company No. 02370350 · Incorporated 10 Apr 1989

Siderise Insulation Limited

Registered name: SIDERISE INSULATION LIMITED

Part of Obice Topco Limited group

Siderise Insulation Limited made £45.7m revenue and £5m profit in the year to 31 Dec 2025. read from filing text

Siderise Insulation Limited’s revenue fell 4% to £45.7m in the year to 31 Dec 2025, with £5m profit and 138 employees. The company is classified under “other manufacturing” and is based in Maesteg; we hold 4 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 32990Other manufacturing n.e.c.

Status: Active
Location: Maesteg, Wales
Age: 37 yrs · since 1989
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 ultimate parent company at the year end was Obice Topco Limited.”

Latest accounts · year to 31 Dec 2025

Key figures

Capital-light

Revenue

£45.7m

Growth ▼4.2%

Profit

£5m

Growth ▼44.5%

Profit margin

11%

Gross 59.3%

Employees

138

Change ▼3.5%

Profit / employee

£36.4k

Revenue/employee £331k

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	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&Lread from filing text	Full P&Lread from filing text
Profit & loss
Revenue (turnover)	£36.8m	£44.9m	£47.7m	£45.7m
Cost of sales	£12.9m	£16.1m	£18.1m	£18.6m
Gross profit	£23.9m	£28.8m	£29.6m	£27.1m
Operating profit	£16.3m	£18.6m	£15.5m	£9.7m
Profit before tax	£12.2m	£14.9m	£12.4m	£6.9m
Profit after tax	£9.8m	£11.5m	£9m	£5m
Profit (best available)	£9.8m	£11.5m	£9m	£5m
Staff costs	£5m	£6.6m	£8.3m	£8.7m
Employees (average)	120	131	143	138
Ratios
Profit margin	26.7%	25.7%	18.9%	11%
Gross margin	65%	64.1%	62.1%	59.3%
Revenue per employee	£307k	£343k	£334k	£331k
Profit per employee	£81.7k	£88.1k	£63.2k	£36.4k
Growth (year on year)
Revenue growth	—	▲22.1%	▲6.2%	▼4.2%
Profit growth	—	▲17.7%	▼21.7%	▼44.5%
Headcount growth	—	▲9.2%	▲9.2%	▼3.5%
Balance sheet — indirect signals, not revenue
Cash at bank	£2.7m	£8.8m	£5m	£9.4m
Net assets	£31.3m	£42.8m	£51.9m	£56.9m
Fixed assets	£3.6m	£6.8m	£4.7m	£4.4m
Current assets	£38.6m	£48.7m	£61.7m	£72.4m
Debtors	£6.6m	£7.9m	£8.5m	£7.1m
Deferred income	£667k	£1.3m	£1.5m	£1.6m
Source	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Aug 2025	FullAccounts · bulk data Aug 2026

Derived from the latest filing

How the business works

Profit margin: 11%; Profit ÷ revenue.
Gross margin: 59.3%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £331k; Revenue ÷ average employees.
Profit per employee: £36.4k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 9.7%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 3.5%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 15.5%; 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: ▲10%; Now £56.9m
Cash at bank: ▲88%; Now £9.4m
Headcount: ▼4%; Now 138
Deferred income: ▲9%; Now £1.6m
Fixed assets: ▼5%; Now £4.4m

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

Obice Topco Limitedultimate parent75–100%
Obice Midco Limited75–100%
Obice Bidco Limited75–100%
Siderise Group Limited75–100%
Siderise (Holdings) Limited75–100%
Siderise Insulation Limitedthis company

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

Sister companies (3)

Lamatherm Products LimitedFigures not disclosed
Siderise (Special Products) LimitedFigures not disclosed
Siderise 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 £5m), from the Companies House accounts bulk data published Aug 2026. Spotted an error? Request a correction.

Updated from Companies House on 13 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.