Our clients have included most of the UK water companies and a selection of policy makers, regulators and operators across the network industries. We regularly work with partners to deliver our services.

A full list of our clients and partners is given below.

Water & Environment

Anglian Water, UK
Bristol Water, UK
Dŵr Cymru Welsh Water, UK
Northumbrian Water, UK
Portsmouth Water, UK
Scottish Water, UK
Severn Trent Water, UK
South East Water, UK
South Staffs Water, UK
South West Water, UK
Southern Water, UK
SES Surrey Water, UK
Thames Water, UK
United Utilities, UK
Wessex Water, UK
Water UK, UK
Ofwat, UK
Environment Agency, UK
UK Hydrographics Office, UK
UK Water Industry Research, UK
Commission for Regulation of Utilities, Ireland
Water Reources East
Water Resources West


Electricity North West
National Grid, UK
Northern Powergrid, UK
Scottish and Southern Energy Networks, UK
Scottish Power Energy Networks, UK
UK Power Networks, UK
Western Power Distribution, UK


First Rail, UK
First Buses, UK
Highways England, UK
Ministry of Transportation, Turkey
Ministry of Transport and Public Infrastructure, Malawi
Passenger Demand Forecasting Council, UK
Stagecoach, UK
Transport for London, UK
Transport for the North, UK
Transurban, Australia and USA
Virgin Trains, UK
West Coast Partnership Development, UK

Other Sectors

Competition and Markets Authority, UK
European Bank for Reconstruction and Development, UK
Royal Mail, UK
Which?, UK


Dar Group
HR Wallingford

“We really appreciated the advice we had dealing with three clients hungry for detail and knowledge in Malawi Turkey and Oman. Rarely do we find a combination of solid theoretical background with good client use a friendly personable and responsive approach”
Anan Allos
Director, Atkins
“PJM has been critical to the success of a number of our customer research projects in passenger rail. They combine rigorous statistical analysis with a pragmatic approach to specifying and then working with the available customer data - to produce robust and actionable insights.”
Owen Hazell
Commercial Development Director, Rail Division, First Group
“PJM worked diligently and patiently on a very difficult and complex project, using novel approaches for combining discrete and often imperfect sources of input data, to produce useful indicators as to how different aspects of the fishery experience are valued by anglers in England.”
Graeme Peirson
Principal Fisheries Scientist, Environment Agency