| Business | Phone |
| Channel City Engineering 336 E Cota St, Santa Barbara 93101 | (805) 962-8733 |
| J Alan Torgeson Machining 427 N Nopal St, Santa Barbara 93103 | (805) 965-2577 |
| Machine Arts 590 E Gutierrez St # G, Santa Barbara 93103 | (805) 965-5344 |
| R-D Machining 336 E Cota St, Santa Barbara 93101 | (805) 962-9033 |
| Zephyr Engineering 725 E Yanonali St, Santa Barbara 93103 | (805) 568-1501 |