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Company No. 07944282 · Incorporated 9 Feb 2012

Dennis Johns Service Group Limited

Registered name: DENNIS JOHNS SERVICE GROUP LIMITED

Dennis Johns Service Group Limited made £9.9m revenue and £629k profit in the year to 30 Apr 2025.

Dennis Johns Service Group Limited’s revenue fell 9% to £9.9m in the year to 30 Apr 2025, with £629k profit and 45 employees. The company is classified under “electrical installation” and is based in London; we hold 4 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 43210Electrical installationSIC 80200Security systems service activities
Status
Active
Location
London, London
Age
14 yrs · since 2012
Type
Private Limited Company
Latest accounts · year to 30 Apr 2025

Key figures

IndependentCapital-lightBoring industry
Revenue
£9.9m
Growth ▼8.7%
Profit
£629k
Growth ▼30.5%
Profit margin
6.4%
Gross 23.7%
Employees
45
Change ▲2.3%
Profit / employee
£14k
Revenue/employee £219k
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 to30 Apr 202230 Apr 202330 Apr 202430 Apr 2025
DisclosureFull P&LFull P&LFull P&LFull P&L
Profit & loss
Revenue (turnover)£6.3m£8.6m£10.8m£9.9m
Cost of sales£4.3m£6.5m£8.1m£7.5m
Gross profit£2m£2.1m£2.7m£2.3m
Operating profit£1.1m£1.1m£1.2m£869k
Profit before tax£1.1m£1.1m£1.2m£876k
Profit after tax£868k£863k£906k£629k
Profit (best available)£868k£863k£906k£629k
Employees (average)39394445
Ratios
Profit margin13.8%10.1%8.4%6.4%
Gross margin32%24.7%25%23.7%
Revenue per employee£162k£220k£246k£219k
Profit per employee£22.3k£22.1k£20.6k£14k
Growth (year on year)
Revenue growth—▲36.2%▲26.1%▼8.7%
Profit growth—▼0.6%▲5%▼30.5%
Headcount growth—0%▲12.8%▲2.3%
Balance sheet — indirect signals, not revenue
Cash at bank£2.8m£1.9m£2.1m£2m
Net assets£1.1m£147k£323k£398k
Fixed assets£163k£185k£482k£370k
Current assets£3.6m£3.8m£4m£3.6m
Debtors£516k£1.1m£983k£488k
Deferred income£1m£1m£1.4m£1.7m
SourceFullAccounts · bulk data Jan 2024FullAccounts · bulk data Jan 2024FullAccounts · bulk data Jan 2025FullAccounts · bulk data Jan 2026
Derived from the latest filing

How the business works

Profit margin
6.4%
Profit ÷ revenue.
Gross margin
23.7%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£219k
Revenue ÷ average employees.
Profit per employee
£14k
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
3.7%
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
17.4%
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
4.9%
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
▲23%
Now £398k
Cash at bank
▼4%
Now £2m
Headcount
▲2%
Now 45
Deferred income
▲25%
Now £1.7m
Fixed assets
▼23%
Now £370k

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 £629k), from the Companies House accounts bulk data published Jan 2026. Spotted an error? Request a correction.

Updated from Companies House on 21 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.