How much does Smith and Byford Limited make?

Smith and Byford Limited reported revenue of £58.5m and £4.8m profit in the year to 31 Mar 2025, according to its accounts filed at Companies House.

How many employees does Smith and Byford Limited have?

Smith and Byford Limited reported an average of 438 employees in the year to 31 Mar 2025.

Is Smith and Byford Limited profitable?

Yes — Smith and Byford Limited reported a profit of £4.8m in the year to 31 Mar 2025.

Company No. 01074356 · Incorporated 29 Sep 1972

Smith and Byford Limited

Registered name: SMITH AND BYFORD LIMITED

Smith and Byford Limited made £58.5m revenue and £4.8m profit in the year to 31 Mar 2025.

Smith and Byford Limited’s revenue grew 10% to £58.5m in the year to 31 Mar 2025, with £4.8m profit and 438 employees. The company is classified under “electrical installation” and is based in Sutton; we hold 3 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 43210Electrical installation SIC 43220Plumbing, heat and air-conditioning installation

Status: Active
Location: Sutton, London
Age: 54 yrs · since 1972
Type: Private Limited Company

Latest accounts · year to 31 Mar 2025

Key figures

IndependentCapital-lightOperating leverageBoring industryCash flow filed

Revenue

£58.5m

Growth ▲9.7%

Profit

£4.8m

Growth ▲10.8%

Profit margin

8.2%

Gross 40.8%

Employees

438

Change ▲3.3%

Profit / employee

£11k

Revenue/employee £134k

Profitable streak

3yrs

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)	£42.2m	£53.3m	£58.5m
Cost of sales	£26.1m	£32.4m	£34.7m
Gross profit	£16.1m	£21m	£23.8m
Operating profit	£2.7m	£5.7m	£6.4m
Profit before tax	£2.6m	£5.6m	£6.5m
Profit after tax	£2.1m	£4.3m	£4.8m
Profit (best available)	£2.1m	£4.3m	£4.8m
Staff costs	£17.1m	£19m	£22.4m
Employees (average)	373	424	438
Ratios
Profit margin	5%	8.1%	8.2%
Gross margin	38.1%	39.3%	40.8%
Revenue per employee	£113k	£126k	£134k
Profit per employee	£5.7k	£10.2k	£11k
Cash conversion	153.8%	74.1%	−86.2%
Growth (year on year)
Revenue growth	—	▲26.3%	▲9.7%
Profit growth	—	▲105.8%	▲10.8%
Headcount growth	—	▲13.7%	▲3.3%
Balance sheet — indirect signals, not revenue
Cash at bank	£5.6m	£7.7m	£9.7m
Net assets	£12.9m	£16.6m	£17.2m
Fixed assets	£6.8m	£6.9m	£768k
Current assets	£14.6m	£19.3m	£24.6m
Debtors	£7.2m	£9.2m	£8.7m
Deferred income	£345k	£70.3k	£680k
Cash from operations	£4.1m	£4.2m	−£5.5m
Source	Accounts · bulk data Dec 2024	Accounts · bulk data Dec 2024	FullAccounts · bulk data Dec 2025

Derived from the latest filing

How the business works

Profit margin: 8.2%; Profit ÷ revenue.
Gross margin: 40.8%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £134k; Revenue ÷ average employees.
Profit per employee: £11k; Profit ÷ average employees.
Cash conversion: −86.2%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 1.3%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 1.2%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 14.8%; 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: ▲4%; Now £17.2m
Cash at bank: ▲26%; Now £9.7m
Headcount: ▲3%; Now 438
Deferred income: ▲868%; Now £680k
Fixed assets: ▼89%; Now £768k

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

Subsidiaries (1)

Silent Water LimitedFigures not disclosed

From the Persons with Significant Control register (corporate controllers 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 £4.8m), from the Companies House accounts bulk data published Dec 2025. Spotted an error? Request a correction.

Updated from Companies House on 13 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.