Department for Infrastructure, Driver & Vehicle Agency NI - Belfast

Lagan Aviation & Infrastructure - Belfast

Infrastructure Site Services Ltd - Blyth

National Infrastructure Group Ltd - Stafford

Milestone Infrastructure - Manchester

Core Group Infrastructure Ltd - Ormskirk

Allied Infrastructure - Leigh

RSS Infrastructure Ltd (Doncaster) - Doncaster

Corvus Design - Anchorage, Alaska

Larsen Properties - Kodiak, Alaska