| Business | Phone |
| Mossey's Metal Manufacturer 2080 Llano Rd # 4a, Santa Rosa 95407 | (707) 577-8040 |
| R R Mechanical Inc 2985 Dutton Ave # 7, Santa Rosa 95407 | (707) 528-7756 |
| Simpson Sheet Metal Inc 2833 Dowd Dr # C, Santa Rosa 95407 | (707) 576-1500 |
| Sonoma Metal Products Inc 601 Aviation Blvd, Santa Rosa 95403 | (707) 546-1700 |
| Tin Shop 2175 Bluebell Dr # A, Santa Rosa 95403 | (707) 545-9092 |