How much does Sonatest Ltd make?

Sonatest Ltd reported revenue of £10.6m and £527k profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Sonatest Ltd have?

Sonatest Ltd reported an average of 39 employees in the year to 31 Dec 2025.

Is Sonatest Ltd profitable?

Yes — Sonatest Ltd reported a profit of £527k in the year to 31 Dec 2025.

Company No. 00865293 · Incorporated 30 Nov 1965

Sonatest Ltd

Registered name: SONATEST LTD

Sonatest Ltd made £10.6m revenue and £527k profit in the year to 31 Dec 2025. read from filing text

Sonatest Ltd’s revenue fell 8% to £10.6m in the year to 31 Dec 2025, with £527k profit and 39 employees. The company is classified under “manufacture of electronic measuring, testing etc. equipment, not for industrial process control” and is based in Milton Keynes; we hold 4 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 26511Manufacture of electronic measuring, testing etc. equipment, not for industrial process control

Status: Active
Location: Milton Keynes, South East
Age: 60 yrs · since 1965
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 of this company is Sonatest NDE Limited, which is registered in England and Wales. Sonatest NDE Limited is jointly owned by De Hua Materials Testing (Holdings) Company”

Latest accounts · year to 31 Dec 2025

Key figures

Capital-light

Revenue

£10.6m

Growth ▼7.8%

Profit

£527k

Growth ▼42.8%

Profit margin

Gross 49%

Employees

Change ▲5.4%

Profit / employee

£13.5k

Revenue/employee £272k

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)	£9.4m	£12.6m	£11.5m	£10.6m
Cost of sales	£5.5m	£6.7m	£5.9m	£5.4m
Gross profit	£3.9m	£5.8m	£5.6m	£5.2m
Operating profit	−£152k	£1.3m	£919k	£428k
Profit before tax	−£169k	£1.3m	£921k	£428k
Profit after tax	£13k	£1.3m	£921k	£527k
Profit (best available)	£13k	£1.3m	£921k	£527k
Staff costs	—	£1.8m	£1.9m	£2m
Employees (average)	35	37	37	39
Ratios
Profit margin	0.1%	10.2%	8%	5%
Gross margin	41.1%	46.5%	48.9%	49%
Revenue per employee	£268k	£340k	£311k	£272k
Profit per employee	£371	£34.7k	£24.9k	£13.5k
Growth (year on year)
Revenue growth	—	▲33.9%	▼8.5%	▼7.8%
Profit growth	—	▲9785%	▼28.3%	▼42.8%
Headcount growth	—	▲5.7%	0%	▲5.4%
Balance sheet — indirect signals, not revenue
Cash at bank	£817k	£1.1m	£751k	£857k
Net assets	£3.6m	£4.9m	£5.1m	£5.6m
Fixed assets	£202k	£275k	£279k	£301k
Current assets	£5.8m	£6.7m	£6.3m	£6.2m
Debtors	£1.6m	£1.8m	£1.3m	£1.5m
Deferred income	£148k	£294k	£328k	£119k
Source	FullAccounts · bulk data Jul 2024	FullAccounts · bulk data Jul 2024	FullAccounts · bulk data May 2025	FullAccounts · bulk data Jun 2026

Derived from the latest filing

How the business works

Profit margin: 5%; Profit ÷ revenue.
Gross margin: 49%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £272k; Revenue ÷ average employees.
Profit per employee: £13.5k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 2.8%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 1.1%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 13.9%; 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 £5.6m
Cash at bank: ▲14%; Now £857k
Headcount: ▲5%; Now 39
Deferred income: ▼64%; Now £119k
Fixed assets: ▲8%; Now £301k

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 31 Dec 2025 (profit £527k), from the Companies House accounts bulk data published Jun 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.