How much does STL Energy Limited make?

STL Energy Limited reported revenue of £11.4m and £2m profit in the year to 31 Mar 2025, according to its accounts filed at Companies House.

How many employees does STL Energy Limited have?

STL Energy Limited reported an average of 15 employees in the year to 31 Mar 2025.

Is STL Energy Limited profitable?

Yes — STL Energy Limited reported a profit of £2m in the year to 31 Mar 2025.

Company No. 07279539 · Incorporated 9 Jun 2010

STL Energy Limited

Registered name: STL ENERGY LIMITED

STL Energy Limited made £11.4m revenue and £2m profit in the year to 31 Mar 2025.

STL Energy Limited’s revenue fell 8% to £11.4m in the year to 31 Mar 2025, with £2m profit and 15 employees. The company is classified under “other business support service activities” and is based in Hereford; we hold 4 years of its filed accounts.

Full P&L filedSection N · Administrative and support servicesSIC 82990Other business support service activities n.e.c.

Status: Active
Location: Hereford, West Midlands
Age: 16 yrs · since 2010
Type: Private Limited Company

Latest accounts · year to 31 Mar 2025

Key figures

IndependentCash flow filed

Revenue

£11.4m

Growth ▼8.1%

Profit

£2m

Growth ▼33.7%

Profit margin

17.5%

Gross 79.3%

Employees

Change ▲7.1%

Profit / employee

£133k

Revenue/employee £762k

Profitable streak

2yrs

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	No P&L	No P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	—	—	£12.4m	£11.4m
Cost of sales	—	—	£2.5m	£2.4m
Gross profit	—	—	£10m	£9.1m
Operating profit	—	—	£5.2m	£4.2m
Profit before tax	—	—	£4m	£2.7m
Profit after tax	—	—	£3m	£2m
Profit (best available)	—	—	£3m	£2m
Staff costs	—	—	£673k	£640k
Employees (average)	9	12	14	15
Ratios
Profit margin	—	—	24.3%	17.5%
Gross margin	—	—	80.1%	79.3%
Revenue per employee	—	—	£889k	£762k
Profit per employee	—	—	£216k	£133k
Cash conversion	—	—	−35.8%	−65.7%
Growth (year on year)
Revenue growth	—	—	—	▼8.1%
Profit growth	—	—	—	▼33.7%
Headcount growth	—	▲33.3%	▲16.7%	▲7.1%
Balance sheet — indirect signals, not revenue
Cash at bank	£598k	£90.6k	£81.4k	£905
Net assets	£10.4m	£12.1m	£15.2m	£17.2m
Fixed assets	£27.1m	£35m	£36.7m	£44.4m
Current assets	£4.2m	£4.4m	£9.1m	£11.9m
Debtors	£3m	£3.1m	£4.7m	£4.6m
Deferred income	£10.8k	£155k	—	—
Cash from operations	—	—	−£1.9m	−£2.7m
Source	FullAccounts · bulk data Jan 2024	FullAccounts · bulk data Jan 2024	FullAccounts · bulk data Apr 2025	FullAccounts · bulk data Mar 2026

Derived from the latest filing

How the business works

Profit margin: 17.5%; Profit ÷ revenue.
Gross margin: 79.3%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £762k; Revenue ÷ average employees.
Profit per employee: £133k; Profit ÷ average employees.
Cash conversion: −65.7%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 388.3%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 39.9%; 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: ▲13%; Now £17.2m
Cash at bank: ▼99%; Now £905
Headcount: ▲7%; Now 15
Deferred income: —; Now —
Fixed assets: ▲21%; Now £44.4m

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £2m), 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.