| Business | Phone |
| Accurate Drilling & Trenching 31669 Chicoine Ave, Hayward 94544 | (510) 487-1506 |
| Active Construction Po Box 295, Hayward 94543 | (510) 886-7110 |
| East Bay Excavating Co Inc 28814 Mission Blvd, Hayward 94544 | (510) 538-5082 |
| Emerson & Son Enterprise 25728 Westview Way, Hayward 94542 | (510) 886-3836 |
| Norm's Bobcat Svc Hayward 94541 | (510) 886-1295 |
| Northern California Excavating 27631 Industrial Blvd, Hayward 94545 | (510) 732-2685 |
| Vanier Excavating Co Inc 3453 Enterprise Ave, Hayward 94545 | (510) 785-2050 |
| Vem General Engineering 23520 Foley St # C, Hayward 94545 | (510) 886-3794 |