How much does Birdsall Networks Limited make?

Birdsall Networks Limited reported revenue of £13.9m and £292k profit in the year to 31 Mar 2025, according to its accounts filed at Companies House.

How many employees does Birdsall Networks Limited have?

Birdsall Networks Limited reported an average of 104 employees in the year to 31 Mar 2025.

Is Birdsall Networks Limited profitable?

Yes — Birdsall Networks Limited reported a profit of £292k in the year to 31 Mar 2025.

Company No. 01210655 · Incorporated 2 May 1975

Birdsall Networks Limited

Registered name: BIRDSALL NETWORKS LIMITED

Part of Birdsall Group Limited group

Birdsall Networks Limited made £13.9m revenue and £292k profit in the year to 31 Mar 2025.

Birdsall Networks Limited’s revenue fell 7% to £13.9m in the year to 31 Mar 2025, with £292k profit and 104 employees. The company is classified under “plumbing, heat and air-conditioning installation” and is based in Hemel Hempstead; we hold 3 years of its filed accounts.

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

Status: Active
Location: Hemel Hempstead, South East
Age: 51 yrs · since 1975
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.

Latest accounts · year to 31 Mar 2025

Key figures

Capital-lightBoring industry

Revenue

£13.9m

Growth ▼7.3%

Profit

£292k

Growth —

Profit margin

2.1%

Gross 24.1%

Employees

104

Change ▲3%

Profit / employee

£2.8k

Revenue/employee £134k

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 Mar 2023	31 Mar 2024	31 Mar 2025
Disclosure	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£13m	£15m	£13.9m
Cost of sales	£10.1m	£11.8m	£10.6m
Gross profit	£2.9m	£3.3m	£3.4m
Operating profit	−£104k	£91.2k	£373k
Profit before tax	−£129k	£4.7k	£320k
Profit after tax	−£117k	−£54.2k	£292k
Profit (best available)	−£117k	−£54.2k	£292k
Staff costs	£5.5m	£5.9m	£5.9m
Employees (average)	92	101	104
Ratios
Profit margin	−0.9%	−0.4%	2.1%
Gross margin	22.4%	21.7%	24.1%
Revenue per employee	£141k	£149k	£134k
Profit per employee	−£1.3k	−£536	£2.8k
Growth (year on year)
Revenue growth	—	▲15.5%	▼7.3%
Headcount growth	—	▲9.8%	▲3%
Balance sheet — indirect signals, not revenue
Cash at bank	£861k	£539k	£849k
Net assets	£1.6m	£1.6m	£1.9m
Fixed assets	£378k	£482k	£567k
Current assets	£3.7m	£3.6m	£3.8m
Debtors	£1.9m	£1.9m	£2m
Deferred income	£364k	£421k	£342k
Source	FullAccounts · bulk data Dec 2024	FullAccounts · bulk data Dec 2024	FullAccounts · bulk data Dec 2025

Derived from the latest filing

How the business works

Profit margin: 2.1%; Profit ÷ revenue.
Gross margin: 24.1%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £134k; Revenue ÷ average employees.
Profit per employee: £2.8k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 4.1%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 2.5%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 14.4%; 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: ▲19%; Now £1.9m
Cash at bank: ▲58%; Now £849k
Headcount: ▲3%; Now 104
Deferred income: ▼19%; Now £342k
Fixed assets: ▲18%; Now £567k

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

Corporate ownership

Group structure

Ownership chain

Birdsall Group Limitedultimate parent75–100%
Birdsall Networks Limitedthis company

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

Sister companies (2)

Birdsall Decarbonisation LimitedFigures not disclosed
Birdsall Technical Services LimitedFigures not disclosed

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

Same industry, similar size

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Industry benchmarks →

Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £292k), from the Companies House accounts bulk data published Dec 2025. Spotted an error? Request a correction.

Updated from Companies House on 23 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.