| Business | Phone |
| Atomic Motorsport Concepts 4345 Twain Ave # G, San Diego 92120 | (619) 640-2733 |
| California Precision Products 6790 Flanders Dr, San Diego 92121 | (858) 638-7300 |
| Challenger Sheet Metal 9450 Candida St, San Diego 92126 | (858) 547-8040 |
| Credo Sheet Metal 12164 Middlebrook Sq, San Diego 92128 | (858) 675-0073 |
| A P Precision Metals Inc 1215 30th St, San Diego 92154 | (619) 628-0003 |
| Advanced Metal Products 8830 Rehco Rd # B, San Diego 92121 | (858) 658-0310 |
| Frazer Sheet Metal Fabrication 15934 Bernardo Center Dr, San Diego 92127 | (858) 674-6166 |
| Mesa Fabrication Co 7665 Formula Pl # D, San Diego 92121 | (858) 689-8432 |
| Landmark Mechanical 8015 Balboa Ave, San Diego 92111 | (858) 279-1222 |
| Tandem Metal Products 9076 Carroll Way, San Diego 92121 | (858) 271-1067 |