| Business | Phone |
| American Circuit Techology 5330 E Hunter Ave, Anaheim 92807 | (714) 777-2480 |
| Apt Electronics 241 N Crescent Way, Anaheim 92801 | (714) 687-6760 |
| Brush Design & Manufacturer 1247 N Lakeview Ave # G, Anaheim 92807 | (714) 970-0302 |
| Chemithon Surface Finishing 1240 N Knollwood Cir, Anaheim 92801 | (510) 659-0888 |
| Aamotron 3121 E La Palma Ave # I, Anaheim 92806 | (714) 630-0110 |
| Advanced Technical Systems 245 W Cerritos Ave, Anaheim 92805 | (714) 993-1140 |
| Ceco Industries 5405 E La Palma Ave, Anaheim 92807 | (714) 695-1600 |
| Veeco Electro Fab 1176 N Osprey Cir, Anaheim 92807 | (714) 630-8020 |