Construction
Bowmer & Kirkland
Balfour Beatty
Carter Group
Carillion
Scientific
GlaxoSmithKline
Proctor & Gamble
Syngenta
National Physical Laboratory
Utilities
National Grid
British Gas
British Telecom
Southern Water
Education & Healthcare
University of East Anglia
Guys and St Thomas’ NHS Trust
Queen Mary University
Roehamtpon University
University of Westminster
Imperial College London
Bucks & Chilterns University
Retail
Sainsbury's
Tesco Express
John Lewis Partnership
Waitrose
Transport
Balfour Beatty Carillion JV
Metronet
British Waterways
Serco
Local Authorities
Gloucestershire County Council
Leicestershire County Council
Cambridge County Council
London Borough of Havering
Housing Associations
Elmbridge Housing
People 1st Slough
Downland Housing Association
Bedford Estates
Miscellaneous
Pinewood Studios
Thistle Hotels
Trinity Mirror Group
Royal Horticultural Soc.