66% Micro
28% Small
3% Mid
1% Large
1% Mega
INSIGHTS - APRIL 2025
UK Sewerage Industry
UK Sewerage Industry Information
The sewerage industry operates sewer systems and treatment facilities for the treatment of waste water and performs maintenance and cleaning of sewers and drains.
Active Businesses
918
Annual Sales
£4bn +
Employees
19,328
Economic Contribution
£2bn
Tags
Location of Sewerage Companies
Sewerage Companies by Size
Largest Sewerage Companies
Turnover
Glas Cymru Anghyfyngedig
£924.4m
Dwr Cymru Cyfyngedig
£924.4m
Northumbrian Water Limited
£918.9m
Sewerage Companies by Age
26% Established
26% Young
25% Mature
23% Startup
0% New
Oldest Sewerage Companies
Established
W.j.hatt Limited
1937
Fastest Growing Sewerage Companies
35% Declining
26% Healthy
15% High
15% Rapid
9% Low
Fastest Growing Sewerage Companies
3yr CAGR
Sewerage Industry Competitive Environment - New Entrants vs Leavers
Sewerage Industry Valuation
EBITDA Multiple
Sewerage Industry Valuation
Turnover Multiple
Sewerage Industry Valuation
Net Asset Multiple
Note - from March 2020 multiples are calculated monthly, prior to this they were calculated on an annual basis.
UK Sewerage Industry Insights
There are 918 active Businesses in the UK with combined annual sales of £4 billion .
The Industry employs around 19,328 people and contributes £2 billion to the economy.
The most popular location for Sewerage companies is South East England with 131 and the fewest are located in Northern Ireland with 25.
The largest Sewerage company is Anglian Water Services Limited with a turnover of £1.6bn. 66% of the industry is comprised of Micro companies with only 3% Mid companies.
23% of the Sewerage Industry is made up of 23% Startup but the majority are Established businesses (26%) the oldest company is Tuke And Bell Limited founded in 1912.
Sewerage industry has a number of high growth companies (15%), the fastest growing company is Sapphire Utility Solutions Limited with a 3 year growth rate of 52%. Other fast growing companies include Independent Water Networks Limited (42%), Hartsmil Limited (36%) and Lanes Group Limited (28%).
The UK Sewerage Industry’s valuation has been improving over the past 3 years with a current EBITDA multiple of 9.30x, Turnover multiple of 2.16x and a Net Asset multiple of 2.86x.
