Broughton Beatty Wearring Ltd - Newport Pagnell

Colony Consulting Ltd - Buckingham

Fabrichine - Buckingham

Struktee Ltd Structural Engineering Consultancy - Banbury

Cox Clifford Partnership - Princes Risborough

Ralph T King & Associates - Hemel Hempstead

Franklin Engineering Ltd - Buckingham

Drinkwater Associates (UK) Ltd. - Buckingham

Cistec - Milton Keynes

Winchester Engineering - Aylesbury