How much does Thermoseal Group Limited make?

Thermoseal Group Limited reported revenue of £34.9m and £2.6m profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Thermoseal Group Limited have?

Thermoseal Group Limited reported an average of 139 employees in the year to 31 Dec 2025.

Is Thermoseal Group Limited profitable?

Yes — Thermoseal Group Limited reported a profit of £2.6m in the year to 31 Dec 2025.

Company No. 01705619 · Incorporated 10 Mar 1983

Thermoseal Group Limited

Registered name: THERMOSEAL GROUP LIMITED

Part of Fenzi S.P.A. group

Thermoseal Group Limited made £34.9m revenue and £2.6m profit in the year to 31 Dec 2025.

Thermoseal Group Limited’s revenue grew 4% to £34.9m in the year to 31 Dec 2025, with £2.6m profit and 139 employees. The company is classified under “manufacture of flat glass” and is based in Birmingham; we hold 4 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 23110Manufacture of flat glass

Status: Active
Location: Birmingham, West Midlands
Age: 43 yrs · since 1983
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 leverageCash flow filed

Revenue

£34.9m

Growth ▲4.3%

Profit

£2.6m

Growth ▲17.7%

Profit margin

7.4%

Gross 36.9%

Employees

139

Change ▲5.3%

Profit / employee

£18.5k

Revenue/employee £251k

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&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£33.6m	£33.5m	£33.5m	£34.9m
Cost of sales	£22.1m	£22.2m	£21.9m	£22.1m
Gross profit	£11.6m	£11.3m	£11.6m	£12.9m
Operating profit	£3.4m	£3m	£2.7m	£3.6m
Profit before tax	£3.4m	£3.2m	£2.9m	£3.5m
Profit after tax	£2.7m	£2.4m	£2.2m	£2.6m
Profit (best available)	£2.7m	£2.4m	£2.2m	£2.6m
Staff costs	£6.5m	£6.4m	£6.7m	£7m
Employees (average)	148	134	132	139
Ratios
Profit margin	8.1%	7.3%	6.5%	7.4%
Gross margin	34.4%	33.8%	34.7%	36.9%
Revenue per employee	£227k	£250k	£254k	£251k
Profit per employee	£18.4k	£18.2k	£16.6k	£18.5k
Cash conversion	−114.7%	−144.7%	−203.1%	−124.6%
Growth (year on year)
Revenue growth	—	▼0.4%	▲0%	▲4.3%
Profit growth	—	▼10%	▼10.4%	▲17.7%
Headcount growth	—	▼9.5%	▼1.5%	▲5.3%
Balance sheet — indirect signals, not revenue
Cash at bank	£8.1m	£11.3m	£2.2m	£3.5m
Net assets	£25.2m	£27.6m	£18.6m	£21.2m
Fixed assets	£10.9m	£10.8m	£12.3m	£16.7m
Current assets	£20.1m	£22.1m	£13m	£14.8m
Debtors	£4.7m	£4.4m	£4.3m	£4.5m
Deferred income	£175k	£78k	£585k	£566k
Cash from operations	−£3.9m	−£4.3m	−£5.6m	−£4.5m
Source	FullAccounts · bulk data Jun 2024	FullAccounts · bulk data Jun 2024	FullAccounts · bulk data May 2025	FullAccounts · bulk data Sep 2026

Derived from the latest filing

How the business works

Profit margin: 7.4%; Profit ÷ revenue.
Gross margin: 36.9%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £251k; Revenue ÷ average employees.
Profit per employee: £18.5k; Profit ÷ average employees.
Cash conversion: −124.6%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 47.9%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 1.6%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 13%; 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: ▲14%; Now £21.2m
Cash at bank: ▲56%; Now £3.5m
Headcount: ▲5%; Now 139
Deferred income: ▼3%; Now £566k
Fixed assets: ▲36%; Now £16.7m

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

Fenzi S.P.A. (registered outside the UK register)ultimate parent75–100%
Thermoseal Group Holdings Limited75–100%
Thermoseal Group Limitedthis company

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

Subsidiaries (2)

Solutions UK (Ig) LimitedFigures not disclosed
Thermoseal Glass Equipment LimitedFigures not disclosed

Sister companies (1)

Heronfield Commercial Properties 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 FullAccounts for the year to 31 Dec 2025 (profit £2.6m), 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.