GreenTek Solutions Ltd - Wetherby

Gbe Uk Limited - Leeds

Green Zone Surveys (UK) Ltd - Wallsend

National Utility Hub - Newcastle upon Tyne

The Big Green Electrical Company Ltd - Camberley

Hydrogard Green Energy - Sandhurst

Bright Green Technology - West Byfleet

Raedam - Bagshot

E3 Renewable - Derby

Direct Utilities - Nottingham