| BAM |
HSEC |
Multiplex Constructions |
| Birse |
Interserve Project Services |
Nomenca |
| Biwater |
Kajima Construction |
Norwest Holst Construction |
| Black & Veatch |
Kier |
Shepherd Construction |
| CJ O'Shea Construction Ltd |
Kingerlee |
Sir Robert McAlpine |
| Clugston Construction |
KMI Water |
Sizebreed Construction |
| Copa |
Mansell Construction |
Skanska Construction |
| Costain Ltd |
McNicholas Construction |
Skanska Rasleigh Weatherfoil |
| Educo |
Miller Construction |
Wates Construction |
| Ellmer Construction |
Morgan Est |
Westfield Shopping Towns |
| EMCOR |
Morgan Sindall |
Willmott Dixon |
| Galliard Homes |
|
|
| |
|
|
| Utility Companies |
| Anglian Water |
Manx Electricity Authority |
Sembcorp Bournemouth Water Ltd |
| Bristol Water |
Northern Ireland Water |
Severn Trent Water |
| Centrica |
Scottish and Southern Energy |
Southern Water |
| Intergen Operating Company (UK) Ltd |
Scottish Water |
United Utilities Water |
| |
|
|
| Specialist |
| Drinking Water Inspectorate |
Rotork |
Tribal |
| Ministry of Defence |
SERCO |
WRc plc |
| Oil and Pipelines Agency |
Spirax Sarco Ltd |
|
|
|
|
