How much does Simpson Environmental Services Limited make?

Simpson Environmental Services Limited reported revenue of £12.1m and £1.5m profit in the year to 31 Mar 2025, according to its accounts filed at Companies House.

How many employees does Simpson Environmental Services Limited have?

Simpson Environmental Services Limited reported an average of 42 employees in the year to 31 Mar 2025.

Is Simpson Environmental Services Limited profitable?

Yes — Simpson Environmental Services Limited reported a profit of £1.5m in the year to 31 Mar 2025.

Company No. 04261412 · Incorporated 30 Jul 2001

Simpson Environmental Services Limited

Registered name: SIMPSON ENVIRONMENTAL SERVICES LIMITED

Simpson Environmental Services Limited made £12.1m revenue and £1.5m profit in the year to 31 Mar 2025.

Simpson Environmental Services Limited’s revenue fell 6% to £12.1m in the year to 31 Mar 2025, with £1.5m profit and 42 employees. The company is classified under “collection of non-hazardous waste” and is based in London; we hold 4 years of its filed accounts.

Full P&L filedSection E · Water supply, sewerage and waste managementSIC 38110Collection of non-hazardous waste

Status: Active
Location: London, London
Age: 25 yrs · since 2001
Type: Private Limited Company

Latest accounts · year to 31 Mar 2025

Key figures

IndependentBoring industryCash flow filed

Revenue

£12.1m

Growth ▼6.5%

Profit

£1.5m

Growth ▲28542%

Profit margin

12.3%

Gross 23.4%

Employees

Change ▲10.5%

Profit / employee

£35.4k

Revenue/employee £288k

Profitable streak

4yrs

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)	£16.3m	£18.1m	£13m	£12.1m
Cost of sales	£10.2m	£11.2m	£11.1m	£9.3m
Gross profit	£6.1m	£6.9m	£1.8m	£2.8m
Operating profit	£5.4m	£5.7m	£1.1m	£1.7m
Profit before tax	£5.4m	£5.8m	£335k	£2m
Profit after tax	£4.5m	£4.6m	£5.2k	£1.5m
Profit (best available)	£4.5m	£4.6m	£5.2k	£1.5m
Staff costs	£1.8m	£2m	£1.7m	£1.6m
Employees (average)	42	44	38	42
Ratios
Profit margin	27.8%	25.2%	0%	12.3%
Gross margin	37.5%	38.3%	14.3%	23.4%
Revenue per employee	£389k	£411k	£341k	£288k
Profit per employee	£108k	£104k	£137	£35.4k
Cash conversion	−120.3%	−117.2%	−184.3%	−114.4%
Growth (year on year)
Revenue growth	—	▲10.7%	▼28.4%	▼6.5%
Profit growth	—	▲0.3%	▼99.9%	▲28542%
Headcount growth	—	▲4.8%	▼13.6%	▲10.5%
Balance sheet — indirect signals, not revenue
Cash at bank	£9.9m	£13.6m	£15.5m	£17.4m
Net assets	£16.6m	£21.1m	£21.1m	£22.6m
Fixed assets	£6.6m	£6.4m	£6.8m	£6m
Current assets	£12.6m	£17.9m	£16.6m	£18.9m
Debtors	£1.7m	£1.4m	£980k	£1.4m
Cash from operations	−£6.5m	−£6.7m	−£2m	−£2m
Source	Accounts · bulk data Dec 2023	Accounts · bulk data Dec 2023	FullAccounts · bulk data Dec 2024	FullAccounts · bulk data Dec 2025

Derived from the latest filing

How the business works

Profit margin: 12.3%; Profit ÷ revenue.
Gross margin: 23.4%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £288k; Revenue ÷ average employees.
Profit per employee: £35.4k; Profit ÷ average employees.
Cash conversion: −114.4%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 49.5%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 11.5%; 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: ▲7%; Now £22.6m
Cash at bank: ▲12%; Now £17.4m
Headcount: ▲11%; Now 42
Deferred income: —; Now —
Fixed assets: ▼12%; Now £6m

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £1.5m), from the Companies House accounts bulk data published Dec 2025. 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.