By city
London 12Manchester 12Norwich 6Bradford 6Coventry 5Colchester 5Northampton 5Southampton 5Stoke-on-Trent 5Leeds 5Cheltenham 5Liverpool 5Glasgow 5Birmingham 5Nottingham 5Cambridge 4Bristol 4Doncaster 4Cardiff 4Warrington 3Derby 3Peterborough 3Bedford 3Preston 3
| Name | Category | Address | City | Opening times |
|---|---|---|---|---|
| AM Consulting Engineers | Civil engineering | 5th Floor, Lanyon Building, Jennymount Business Park, N Derby St | Belfast | Mon–Fri 09:00–17:30 |
| APB Group Ltd | Civil engineering company | Brookhouse Industrial Estate, Ryandra House Ryandra Business Park | Stoke-on-Trent | Mon 08:00–17:00 |
| ASD Consultants | Civil engineering | Seymour House, Little Money Rd | Norwich | Mon–Fri 09:00–17:00 |
| Bagnall Construction Ltd t/a Bagnall Environmental | Civil engineering | Draycott Cross Rd | Stoke-on-Trent | Mon–Thu 08:00–17:00 |
| Bayliss Consulting Ltd | Structural engineer | Woburn House, 3 Vernongate | Derby | Mon–Fri 08:30–17:30 |
| Baynham Meikle Partnership | Structural engineer | 8th Floor, 62 Hagley Rd | Birmingham | Mon 09:00–17:30 |
| Bloomsbury Groundworks and Civil Engineering | Civil engineering | 15-17 Middle St | Brighton | Mon–Fri 09:00–17:00 |
| Brennan Building & Civil Engineering Ltd | Civil engineering | Boarden Cl | Northampton | Mon–Fri 07:30–17:00 |
| C & D ( Civil Engineering & Road Surfacing ) | Civil engineering | Beechers Business Centre, Heysham Rd | Liverpool | Mon–Fri 09:00–17:00 |
| C K Services RCE | Civil engineering | Kislingbury Rd | Northampton | Mon–Fri 07:30–17:00 |
| C P O'Hara Construction Ltd | Civil engineering | Colwick Rd | Nottingham | Mon–Fri 07:30–17:00 |
| Calder C A D Ltd | Civil engineering | Prospect Court, Prospect St | Bradford | Mon 08:30–17:00 |
| Callidus Scotland Ltd | Civil engineering | 27 Woodside Pl | Glasgow | Mon–Thu 08:00–17:00 |
| Canham Consulting Ltd | Structural engineer | Second Floor, 69-75 Thorpe Rd | Norwich | Fri 08:30–17:00 |
| Colas Rail Ltd. | Railway contractor | Fl 3, 25 Victoria St | London | Mon 09:00–17:00 |
| Construction Design Solutions | Structural engineer | 78 Wollaton Rd | Nottingham | Mon 08:30–17:00 |
| D A Cant limited | Civil engineering | Level 1, Gun Hill Trading Estate, Ipswich Rd | Colchester | Mon–Tue 07:00–16:30 |
| Darke Engineering Ltd | Civil engineering company | Unit 1, Lime Kiln Lane | Peterborough | Mon–Thu 07:30–16:30 |
| Elliott Wood | Civil engineering | 55 Whitfield St | London | Mon–Fri 09:00–17:30 |
| GM Land Solutions | Forestry service | 10 S St Andrew St | Edinburgh | Mon–Fri 08:00–18:00 |
| Grimshaw Group | Civil engineering | St Peters Works, Tewkesbury Rd | Cheltenham | Fri 08:00–18:00 |
| Harborne Building Consultancy Ltd | Structural engineer | Arden Court, 20 MacKenzie Cl | Coventry | Mon–Fri 09:00–18:00 |
| Huesker Ltd | Civil engineering | 1, Harvard Ct, Calver Rd | Warrington | Fri 08:00–16:00 |
| J A Burke Construction Ltd | Civil engineering | 960, 962 Yardley Wood Rd | Birmingham | Mon–Tue 08:00–17:00 |
| J Hopkins (Contractors) Ltd | Civil engineering | Monde Trading Estate, Westinghouse Rd | Manchester | Mon–Tue 09:00–17:00 |
| JME Consultants | Structural engineer | The Menagerie, The Harrops, 8 Bramleys Barn | York | Mon–Fri 09:00–17:00 |
| JRG Civils Limited | Civil engineering | 2 Regents Ct | Newcastle upon Tyne | Mon 08:00–20:00 |
| K J E Engineering Ltd | Precision engineer | Unit 7-10 St Georges Business Park, Alstone Lane | Cheltenham | Fri 08:00–16:30 |
| Kaymac Marine & Civil Engineering Ltd | Diving contractor | Osprey Business park, Byng St | Swansea | Thu 08:00–16:30 |
| M & M Contractors | Civil engineering | 4 Heron Rd | Belfast | Mon 07:30–16:30 |