| Balfour Beatty Construction Limited |
| Amec |
| Balfour Beatty Refurbishment Limited |
| Budge & Sons Ltd |
| Chorus Group Limited |
| Coffey Construction Ltd |
| Comer Homes |
| Costain Ltd |
| Crest Nicholson |
| Fitzpatrick Contractors Ltd |
| Geoffrey Osborne Ltd |
| Gleeson Building Ltd |
| Griffiths McGee Demolition Ltd |
| Hill Partnerships Ltd |
| Interserve (FM) Ltd |
| ISG Dean & Bowes Ltd |
| Killby & Gayford Ltd |
| Knight Build Ltd |
| Laing O'Rourke Ltd |
| Lakesmere Ltd |
| McNicholas Construction Services Ltd |
| Mowlem Building |
| Multiplex |
| OpecPrime Developments Ltd |
| Pillikaan Construction |
| ROK Group |
| ROK Group |
| Ruddy Joinery |
| Scheldebouw (UK) Ltd |
| Skansen Ltd |
| Skanska |
| Skanska Rashleigh Weatherfoil |
| Specialised Contract Interiors Limited |
| St James Group |
| St Mary's Demolition Contractors Ltd |
| Thomas Bates & Son Ltd |
| Urvasco |
| BCJV |
| Explore Living Plc |
| GB Building Solutions Ltd |
| Rotary Southern Limited |
| LTS Refurbishment Ltd |
| MBM Metalwork Construction Ltd |
| Rydan Mechanical Services |
| Principal Interiors |
| Gipping Construction Ltd |
| Glenkerrin UK |
| McLaren Construction |
| Matthews (Sussex) Ltd |
| Morgan Sindall |
| Syd Bishop & Son Demolition Ltd |
| KNET Construction |
| Franklins Demolition |
