How much does Black Box Network Services (UK) Limited make?

Black Box Network Services (UK) Limited reported revenue of £7.4m and a loss of £1.1m in the year to 31 Mar 2025, according to its accounts filed at Companies House.

How many employees does Black Box Network Services (UK) Limited have?

Black Box Network Services (UK) Limited reported an average of 50 employees in the year to 31 Mar 2025.

Is Black Box Network Services (UK) Limited profitable?

No — Black Box Network Services (UK) Limited reported a loss of £1.1m in the year to 31 Mar 2025.

Company No. 02182174 · Incorporated 22 Oct 1987

Black Box Network Services (UK) Limited

Registered name: BLACK BOX NETWORK SERVICES (UK) LIMITED

Black Box Network Services (UK) Limited made £7.4m revenue and a £1.1m loss in the year to 31 Mar 2025.

Black Box Network Services (UK) Limited’s revenue fell 26% to £7.4m in the year to 31 Mar 2025, with a loss of £1.1m and 50 employees. The company is classified under “other information technology service activities” and is based in Reading; we hold 4 years of its filed accounts.

Full P&L filedSection J · Information and communicationSIC 62090Other information technology service activities

Status: Active
Location: Reading, South East
Age: 38 yrs · since 1987
Type: Private Limited Company

Latest accounts · year to 31 Mar 2025

Key figures

IndependentCapital-light

Revenue

£7.4m

Growth ▼26.1%

Profit

−£1.1m

Growth —

Profit margin

−15%

Gross 20.3%

Employees

Change ▼10.7%

Profit / employee

−£22.2k

Revenue/employee £148k

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	31 Mar 2022	31 Mar 2023	31 Mar 2024	31 Mar 2025
Disclosure	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£14.1m	£12m	£10m	£7.4m
Cost of sales	£10.5m	£9.8m	£8.5m	£5.9m
Gross profit	£3.6m	£2.1m	£1.5m	£1.5m
Operating profit	−£210k	−£1.8m	−£1.4m	−£1.2m
Profit before tax	−£47.5k	−£1.7m	−£1.3m	−£1.1m
Profit after tax	−£47.5k	−£1.7m	−£1.3m	−£1.1m
Profit (best available)	−£47.5k	−£1.7m	−£1.3m	−£1.1m
Employees (average)	58	74	56	50
Ratios
Profit margin	−0.3%	−14%	−12.9%	−15%
Gross margin	25.7%	17.9%	15.4%	20.3%
Revenue per employee	£243k	£162k	£179k	£148k
Profit per employee	−£819	−£22.6k	−£23.1k	−£22.2k
Growth (year on year)
Revenue growth	—	▼15.1%	▼16.5%	▼26.1%
Headcount growth	—	▲27.6%	▼24.3%	▼10.7%
Balance sheet — indirect signals, not revenue
Cash at bank	£166k	£448k	£307k	£290k
Net assets	£6.6m	£4.9m	£3.6m	£2.5m
Fixed assets	£56.7k	£15.1k	£50.1k	£38.9k
Current assets	£11.4m	£9.7m	£9m	£9.3m
Debtors	£2.8m	£2.7m	£1.8m	£1.4m
Deferred income	£199k	£264k	£111k	£431k
Source	FullAccounts · bulk data Mar 2024	FullAccounts · bulk data Mar 2024	FullAccounts · bulk data Mar 2025	FullAccounts · bulk data Mar 2026

Derived from the latest filing

How the business works

Profit margin: −15%; Profit ÷ revenue.
Gross margin: 20.3%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £148k; Revenue ÷ average employees.
Profit per employee: −£22.2k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 0.5%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 5.8%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 18.3%; 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 £2.5m
Cash at bank: ▼5%; Now £290k
Headcount: ▼11%; Now 50
Deferred income: ▲287%; Now £431k
Fixed assets: ▼22%; Now £38.9k

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 Mar 2025 (profit −£1.1m), from the Companies House accounts bulk data published Mar 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.