| Business | Phone |
| Donal Machine Inc 591 N Mcdowell Blvd, Petaluma 94954 | (707) 763-6625 |
| Forcier Machine Design 123 Marshall Ave, Petaluma 94952 | (707) 763-7921 |
| J J & V Tool & Die Inc 1482 Petaluma Blvd N, Petaluma 94952 | (707) 778-1270 |
| Jrl Machine & Driveline 1308 Dynamic St # 5, Petaluma 94954 | (707) 762-7794 |
| North Bay Precision Machining 1310 Ross St # F, Petaluma 94954 | (707) 766-9475 |
| Protofab Inc 1310 Stub Rd, Petaluma 94954 | (707) 782-9669 |
| Ross Machining 2200 Pine View Way # D, Petaluma 94954 | (707) 778-0484 |
| Shaws Machine Shop 7015 Peterson Rd, Petaluma 94952 | (707) 795-4108 |
| White Industries Inc 1325 Ross St, Petaluma 94954 | (707) 769-5600 |