| Business | Phone |
| Accuturn Corporation 6510 Box Springs Blvd # A, Riverside 92507 | (951) 656-6621 |
| Britmax Machining Inc 12381 Doherty St, Riverside 92503 | (951) 371-3231 |
| King's Screw Products 12343 Doherty St, Riverside 92503 | (951) 898-9411 |
| Precision Technology 3147 Durahart St, Riverside 92507 | (951) 788-0252 |
| Inland Screw Machine 5850 Griffith St, Riverside 92504 | (951) 689-3908 |