How much does Duo Systems Ltd make?

Duo Systems Ltd reported revenue of £2.5m and £132k profit in the year to 30 Jun 2025, according to its accounts filed at Companies House.

How many employees does Duo Systems Ltd have?

Duo Systems Ltd reported an average of 5 employees in the year to 30 Jun 2025.

Is Duo Systems Ltd profitable?

Yes — Duo Systems Ltd reported a profit of £132k in the year to 30 Jun 2025.

Company No. 12715303 · Incorporated 2 Jul 2020

Duo Systems Ltd

Registered name: DUO SYSTEMS LTD

Duo Systems Ltd made £2.5m revenue and £132k profit in the year to 30 Jun 2025. read from filing text

Duo Systems Ltd’s revenue was £2.5m in the year to 30 Jun 2025, with £132k profit and 5 employees. The company is classified under “plumbing, heat and air-conditioning installation” and is based in Fareham; we hold 3 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 43220Plumbing, heat and air-conditioning installation

Status: Active
Location: Fareham, South East
Age: 6 yrs · since 2020
Type: Private Limited Company

Latest accounts · year to 30 Jun 2025

Key figures

IndependentSmall teamCapital-lightYoung and profitableBoring industry

Revenue

£2.5m

Growth —

Profit

£132k

Growth —

Profit margin

5.2%

Gross 34.2%

Employees

Change —

Profit / employee

£26.5k

Revenue/employee £509k

Profitable streak

1yr

Consecutive profitable years in our data

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

3 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 Dec 2022	30 Jun 2024	30 Jun 2025
Disclosure	No P&L	Full P&Lread from filing text	Full P&Lread from filing text
Profit & loss
Revenue (turnover)	—	£2.9m	£2.5m
Cost of sales	—	£2m	£1.7m
Gross profit	—	£896k	£869k
Operating profit	—	−£360k	£204k
Profit before tax	—	−£511k	£151k
Profit after tax	—	−£521k	£132k
Profit (best available)	—	−£521k	£132k
Employees (average)	3	3	5
Ratios
Profit margin	—	−17.7%	5.2%
Gross margin	—	30.5%	34.2%
Revenue per employee	—	£980k	£509k
Profit per employee	—	−£174k	£26.5k
Balance sheet — indirect signals, not revenue
Cash at bank	£18.5k	£8.8k	£25
Net assets	−£60.7k	−£582k	−£449k
Fixed assets	£787	£2.2k	£44k
Current assets	£906k	£543k	£741k
Debtors	£340k	£136k	£65.4k
Deferred income	£14.2k	£0	£1.4k
Source	FullAccounts · bulk data Mar 2025	FullAccounts · bulk data Mar 2025	FullAccounts · bulk data Jun 2026

Derived from the latest filing

How the business works

Profit margin: 5.2%; Profit ÷ revenue.
Gross margin: 34.2%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £509k; Revenue ÷ average employees.
Profit per employee: £26.5k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 1.7%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 0.1%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 2.6%; 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: —; Now −£449k
Cash at bank: —; Now £25
Headcount: —; Now 5
Deferred income: —; Now £1.4k
Fixed assets: —; Now £44k

Corporate ownership

Group structure

Minority corporate shareholders

Bucchinc Ltd 25–50%
Code 9 Management Limited 25–50%

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

Same industry, similar size

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 30 Jun 2025 (profit £132k), 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.