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Company No. 01617797 · Incorporated 1 Mar 1982

Detector Electronics (U.K.) Limited

Registered name: DETECTOR ELECTRONICS (U.K.) LIMITED

Part of Detector Electronics Buyer UK Limited group

Detector Electronics (U.K.) Limited made £15.5m revenue and £3m profit in the year to 31 Dec 2024.

Detector Electronics (U.K.) Limited’s revenue grew 15% to £15.5m in the year to 31 Dec 2024, with £3m profit and 29 employees. The company is classified under “other business support service activities” and is based in Staines-Upon-Thames; we hold 2 years of its filed accounts.

Full P&L filedSection N · Administrative and support servicesSIC 82990Other business support service activities n.e.c.
Status
Active
Location
Staines-Upon-Thames, London
Age
44 yrs · since 1982
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: “Detector Electronics Buyer UK Limited”

Latest accounts · year to 31 Dec 2024

Key figures

Operating leverage
Revenue
£15.5m
Growth ▲14.9%
Profit
£3m
Growth ▲242.9%
Profit margin
19.7%
Gross 33.3%
Employees
29
Change ▲52.6%
Profit / employee
£105k
Revenue/employee £535k
Profitable streak
2yrs
Consecutive profitable years in our data

Badges are automated estimates derived from the filed figures — not statements of fact about the company.

2 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Dec 202331 Dec 2024
DisclosureFull P&LFull P&L
Profit & loss
Revenue (turnover)£13.5m£15.5m
Cost of sales£9.8m£10.3m
Gross profit£3.7m£5.2m
Operating profit£838k£1.1m
Profit before tax£876k£3.4m
Profit after tax£889k£3m
Profit (best available)£889k£3m
Staff costs£1.8m£2.4m
Employees (average)1929
Ratios
Profit margin6.6%19.7%
Gross margin27.6%33.3%
Revenue per employee£710k£535k
Profit per employee£46.8k£105k
Growth (year on year)
Revenue growth—▲14.9%
Profit growth—▲242.9%
Headcount growth—▲52.6%
Balance sheet — indirect signals, not revenue
Cash at bank£60k£1.9m
Net assets£2.6m£15.8m
Fixed assets£188k£7.9m
Current assets£5.6m£9.6m
Debtors£3.3m£4.7m
SourceFullAccounts · bulk data May 2026FullAccounts · bulk data May 2026
Derived from the latest filing

How the business works

Profit margin
19.7%
Profit ÷ revenue.
Gross margin
33.3%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£535k
Revenue ÷ average employees.
Profit per employee
£105k
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
51%
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
—
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
30.5%
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
▲511%
Now £15.8m
Cash at bank
▲3025%
Now £1.9m
Headcount
▲53%
Now 29
Deferred income
—
Now —
Fixed assets
▲4107%
Now £7.9m
Corporate ownership

Group structure

Ownership chain

  1. Detector Electronics Buyer UK Limitedultimate parent75–100%
  2. Detector Electronics (U.K.) Limitedthis company

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

From the Persons with Significant Control register (corporate controllers only).

Same industry, similar size

Similar profitable businesses

Industry benchmarks →

Sources

Latest figures from FullAccounts for the year to 31 Dec 2024 (profit £3m), from the Companies House accounts bulk data published May 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.