How much does S M S Environmental Limited make?

S M S Environmental Limited reported revenue of £13.4m and £338k profit in the year to 31 Jul 2025, according to its accounts filed at Companies House.

How many employees does S M S Environmental Limited have?

S M S Environmental Limited reported an average of 198 employees in the year to 31 Jul 2025.

Is S M S Environmental Limited profitable?

Yes — S M S Environmental Limited reported a profit of £338k in the year to 31 Jul 2025.

Company No. 04243379 · Incorporated 29 Jun 2001

S M S Environmental Limited

Registered name: S M S ENVIRONMENTAL LIMITED

Part of Sandford, Hearn, Harris & Associates Ltd group

S M S Environmental Limited made £13.4m revenue and £338k profit in the year to 31 Jul 2025.

S M S Environmental Limited’s revenue was £13.4m in the year to 31 Jul 2025, with £338k profit and 198 employees. The company is classified under “water collection, treatment and supply” and is based in Didcot; we hold 4 years of its filed accounts.

Full P&L filedSection E · Water supply, sewerage and waste managementSIC 36000Water collection, treatment and supply

Status: Active
Location: Didcot, South East
Age: 25 yrs · since 2001
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 Jul 2025

Key figures

Revenue

£13.4m

Growth ▼0.4%

Profit

£338k

Growth ▼21.7%

Profit margin

2.5%

Gross 47.8%

Employees

198

Change ▼6.2%

Profit / employee

£1.7k

Revenue/employee £67.7k

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.

4 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 Jul 2022	31 Jul 2023	31 Jul 2024	31 Jul 2025
Disclosure	No P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	—	£10.9m	£13.5m	£13.4m
Cost of sales	—	£5.9m	£7.1m	−£7m
Gross profit	—	£5m	£6.4m	£6.4m
Operating profit	—	£690k	£551k	£323k
Profit before tax	—	£683k	£517k	£357k
Profit after tax	—	£637k	£432k	£338k
Profit (best available)	—	£637k	£432k	£338k
Staff costs	—	£6.3m	£7.9m	—
Employees (average)	174	188	211	198
Ratios
Profit margin	—	5.8%	3.2%	2.5%
Gross margin	—	45.7%	47.4%	47.8%
Revenue per employee	—	£58.1k	£63.8k	£67.7k
Profit per employee	—	£3.4k	£2k	£1.7k
Growth (year on year)
Revenue growth	—	—	▲23.1%	▼0.4%
Profit growth	—	—	▼32.1%	▼21.7%
Headcount growth	—	▲8.1%	▲12.2%	▼6.2%
Balance sheet — indirect signals, not revenue
Cash at bank	£1.6m	£1.5m	£1m	—
Net assets	£2m	£2.5m	£2.6m	—
Fixed assets	£164k	£185k	£313k	—
Current assets	£3.8m	£4.3m	£5.2m	—
Debtors	£1.6m	£1.5m	£2.1m	—
Deferred income	—	£267k	£449k	—
Source	FullAccounts · bulk data Apr 2024	FullAccounts · bulk data Apr 2024	FullAccounts · bulk data Apr 2025	Accounts · bulk data Apr 2026

Derived from the latest filing

How the business works

Profit margin: 2.5%; Profit ÷ revenue.
Gross margin: 47.8%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £67.7k; Revenue ÷ average employees.
Profit per employee: £1.7k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: —; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: —; 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 —
Cash at bank: —; Now —
Headcount: ▼6%; Now 198
Deferred income: —; Now —
Fixed assets: —; Now —

Corporate ownership

Group structure

Ownership chain

Sandford, Hearn, Harris & Associates Ltdultimate parent75–100%
S M S Environmental Limitedthis company

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

Subsidiaries (1)

Opuz LtdFigures 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 accounts for the year to 31 Jul 2025 (profit £338k), from the Companies House accounts bulk data published Apr 2026. 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.