46% Micro
42% Small
7% Mid
3% Large
2% Mega
INSIGHTS - APRIL 2025
UK Power Supply Industry
UK Power Supply Industry Information
The power industry includes electricity generation (including thermal, nuclear, hydroelectric, gas turbine, diesel and renewable), gas, steam and air conditioning supply, transmission, distribution and sale.
Active Businesses
13,238
Annual Sales
£306bn +
Employees
238,840
Economic Contribution
£76bn
Tags
Location of Power Supply Companies
Power Supply Companies by Size
Largest Power Supply Companies
Turnover
Centrica Plc
£26.5bn
British Gas Trading Limited
£21.4bn
Edf Energy Customers Limited
£17.7bn
Edf Energy Limited
£13.9bn
British Gas Limited
£13.5bn
Power Supply Companies by Age
40% Established
27% Young
23% Startup
9% Mature
0% New
Fastest Growing Power Supply Companies
26% Declining
25% Rapid
22% Healthy
21% High
7% Low
Fastest Growing Power Supply Companies
3yr CAGR
Power Supply Industry Competitive Environment - New Entrants vs Leavers
Power Supply Industry Valuation
EBITDA Multiple
Power Supply Industry Valuation
Turnover Multiple
Power Supply Industry Valuation
Net Asset Multiple
Note - from March 2020 multiples are calculated monthly, prior to this they were calculated on an annual basis.
UK Electricity, gas, steam and air conditioning supply Industry Insights
There are 13,238 active Businesses in the UK with combined annual sales of £306 billion .
The Industry employs around 238,839 people and contributes £76 billion to the economy.
The most popular location for Power Supply companies is London with 3,739 and the fewest are located in North East England with 419.
The largest Power Supply company is Centrica Plc with a turnover of £26.5bn. 46% of the industry is comprised of Micro companies with only 7% Mid companies.
9% of the Power Supply Industry is made up of 9% Mature but the majority are Established businesses (40%) the oldest company is Infinis (Re-gen) Limited founded in 1918.
Power Supply industry has a number of high growth companies (21%), the fastest growing company is Shell Energy Europe Limited with a 3 year growth rate of 393%. Other fast growing companies include Npower Commercial Gas Limited (357%), E.on Next Energy Limited (313%) and Crown Gas And Power (Holdings) Limited (220%).
The UK Power Supply Industry’s valuation has been improving over the past 3 years with a current EBITDA multiple of 10.45x, Turnover multiple of 3.58x and a Net Asset multiple of 3.02x.
