| Business | Phone |
| Baldry Brothers Drilling 2008 Tokay St, Santa Rosa 95404 | (707) 665-0505 |
| Beaver Construction 1525 Atlanta Ct, Santa Rosa 95405 | (707) 573-8677 |
| Clear Heart Drilling Inc 483 W College Ave, Santa Rosa 95401 | (707) 568-6095 |
| Dale Kazarian Drilling Po Box 6597, Santa Rosa 95406 | (707) 545-4653 |
| Empire Drilling Corp Santa Rosa 95409 | (707) 537-0700 |
| Hauck Construction 1420 Karas Ln, Santa Rosa 95401 | (707) 525-0725 |
| Ray'Z Drilling 2155 Nightingale Dr, Santa Rosa 95403 | (707) 578-2268 |
| Spm Builders 339 S E St, Santa Rosa 95404 | (707) 576-1230 |