How much does Thermoteknix Systems Limited make?

Thermoteknix Systems Limited reported revenue of £14.3m and a loss of £1.9m in the year to 30 Apr 2025, according to its accounts filed at Companies House.

How many employees does Thermoteknix Systems Limited have?

Thermoteknix Systems Limited reported an average of 68 employees in the year to 30 Apr 2025.

Is Thermoteknix Systems Limited profitable?

No — Thermoteknix Systems Limited reported a loss of £1.9m in the year to 30 Apr 2025.

Company No. 01624251 · Incorporated 24 Mar 1982

Thermoteknix Systems Limited

Registered name: THERMOTEKNIX SYSTEMS LIMITED

Thermoteknix Systems Limited made £14.3m revenue and a £1.9m loss in the year to 30 Apr 2025.

Thermoteknix Systems Limited’s revenue fell 12% to £14.3m in the year to 30 Apr 2025, with a loss of £1.9m and 68 employees. The company is classified under “manufacture of other special-purpose machinery” and is based in Cambridge; we hold 4 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 28990Manufacture of other special-purpose machinery n.e.c.

Status: Active
Location: Cambridge, East of England
Age: 44 yrs · since 1982
Type: Private Limited Company

Latest accounts · year to 30 Apr 2025

Key figures

IndependentCapital-lightCash flow filed

Revenue

£14.3m

Growth ▼11.6%

Profit

−£1.9m

Growth ▼183%

Profit margin

−13.1%

Gross 70.6%

Employees

Change ▼1.5%

Profit / employee

−£27.6k

Revenue/employee £210k

Profitable streak

0yrs

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	Full P&Lread from filing text	Full P&Lread from filing text	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£10.2m	£17.4m	£16.2m	£14.3m
Cost of sales	£4.4m	£7.8m	£4.7m	£4.2m
Gross profit	£5.7m	£9.6m	£11.5m	£10.1m
Operating profit	£1.5m	£1.2m	£683k	−£2.2m
Profit before tax	£1.5m	£1.3m	£1.1m	−£1.9m
Profit after tax	£1.9m	£1.7m	£2.3m	−£1.9m
Profit (best available)	£1.9m	£1.7m	£2.3m	−£1.9m
Staff costs	—	—	£8.2m	£9.1m
Employees (average)	59	66	69	68
Ratios
Profit margin	18.3%	9.8%	14%	−13.1%
Gross margin	56.5%	55.1%	71.1%	70.6%
Revenue per employee	£172k	£263k	£235k	£210k
Profit per employee	£31.6k	£25.8k	£32.7k	−£27.6k
Cash conversion	−168.6%	−255.7%	−46%	—
Growth (year on year)
Revenue growth	—	▲70.5%	▼6.7%	▼11.6%
Profit growth	—	▼8.6%	▲32.5%	▼183%
Headcount growth	—	▲11.9%	▲4.5%	▼1.5%
Balance sheet — indirect signals, not revenue
Cash at bank	£9.7m	£12.8m	£13.5m	£10.3m
Net assets	£8.1m	£9.8m	£12.1m	£8.3m
Fixed assets	£283k	£307k	£336k	£259k
Current assets	£15.9m	£17.7m	£19.8m	£20.5m
Debtors	£3.5m	£543k	£1.3m	£5.7m
Deferred income	£1.4m	£2.7m	£4.2m	£4.9m
Cash from operations	−£2.5m	−£3.1m	−£314k	−£3.5m
Source	FullAccounts · bulk data Dec 2023	FullAccounts · bulk data Dec 2023	FullAccounts · bulk data Jan 2025	FullAccounts · bulk data Apr 2026

Derived from the latest filing

How the business works

Profit margin: −13.1%; Profit ÷ revenue.
Gross margin: 70.6%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £210k; Revenue ÷ average employees.
Profit per employee: −£27.6k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 1.8%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 34.4%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 39.7%; 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: ▼31%; Now £8.3m
Cash at bank: ▼23%; Now £10.3m
Headcount: ▼1%; Now 68
Deferred income: ▲18%; Now £4.9m
Fixed assets: ▼23%; Now £259k

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal 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 −£1.9m), from the Companies House accounts bulk data published Apr 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.