| Business | Phone |
| Eaton Corp 3179 W Temple Ave, Pomona 91768 | (909) 869-8200 |
| Engine Electronics 196 University Pkwy, Pomona 91768 | (909) 598-5485 |
| Gentle Wayeer Electric Inc 3207 Pomona Blvd, Pomona 91768 | (909) 598-1919 |
| Pierce Industry Inc 168 University Pkwy, Pomona 91768 | (909) 598-8835 |
| Poly Venture Industries 157 Stare St, Pomona 91767 | (909) 593-6111 |
| Siemens Energy & Automation 2420 S Reservoir St, Pomona 91766 | (909) 627-6141 |
| Krautkramer-Branson Inc 2701 N Towne Ave # A, Pomona 91767 | (818) 705-3295 |