| Business | Phone |
| Heim Brothers Inc 375 Arthur Rd, Martinez 94553 | (925) 229-1610 |
| R M Harris Co 1000 Howe Rd # 200, Martinez 94553 | (925) 335-3000 |
| Sonnikson & Stordahl Inc 4858 Sunrise Dr, Martinez 94553 | (925) 229-4028 |
| Fci Constructors Inc 50 Mococo Rd, Martinez 94553 | (925) 335-0688 |
| Kel-Tec Builders 251 Arthur Rd, Martinez 94553 | (925) 229-5508 |
| Oavan Buren Co Martinez 94553 | (925) 229-2964 |