| Business | Phone |
| Mahoney's Backhoe Svc 1941 Magazine St, Vallejo 94591 | (707) 554-1483 |
| O C Jones & Sons 275 Mini Dr, Vallejo 94589 | (707) 648-0291 |
| Valley Diaz Constr & Dev 720 L St # 751, Vallejo 94592 | (707) 557-1273 |
| Velesquez Engineering 883 Lake Herman Rd, Vallejo 94591 | (707) 647-7644 |
| Wankum Engineering 66 Monte Vista Ave, Vallejo 94590 | (707) 552-2022 |