3D Services (South East) Ltd - Godalming

Bruce Engineering - Potters Bar

Careford Construction Ltd - Broxbourne

Bolt Structures - Harrow

Mine Technology Services Ltd - Godalming

Joseph - Broxbourne

Pro Dec Roofing - Broxbourne

Stotfold Engineering Co Ltd - Biggleswade

Builders Broxbourne - Broxbourne

Green Building Design Consultants Ltd - Hertford