| Business | Phone |
| Crossman Manufacturing 1610 E Philadelphia St, Ontario 91761 | (909) 947-5162 |
| Nexus Plastics Inc 4551 Brickell Privado St, Ontario 91761 | (909) 937-1000 |
| Plastic Fab & Form 5646 W Mission Blvd, Ontario 91762 | (909) 986-4001 |
| Plastics Research 1400 S Campus Ave, Ontario 91761 | (909) 391-2006 |