| Business | Phone |
| 8 A Assoc Contracting 3438 Keystone Loop, Discovery Bay 94514 | (925) 634-0088 |
| All Trade Builders Inc 2115 Newport Dr, Discovery Bay 94514 | (925) 516-6353 |
| Cardwell Construction 1805 Surfside Ct, Discovery Bay 94514 | (925) 447-6558 |
| Dave Turcott Construction 5055 Cabrillo Pt, Discovery Bay 94514 | (925) 516-9127 |
| Finish Line Builders Inc 1836 Dolphin Ct, Discovery Bay 94514 | (650) 369-2845 |
| Larry Jackson Construction 5840 Starboard Dr, Discovery Bay 94514 | (925) 634-2900 |
| Nicholl Construction-Framing 2397 Newport Pl S, Discovery Bay 94514 | (925) 516-7282 |