| Business | Phone |
| Applied Friction Techniques 1225 W Barkley Ave, Orange 92868 | (714) 744-1361 |
| Gpm Inc 635 N Eckhoff St # N, Orange 92868 | (714) 385-1316 |
| Neurologic Research 1742 W Katella Ave # 9, Orange 92867 | (714) 997-4255 |
| Nextherm Inc 1742 W Katella Ave # 4, Orange 92867 | (714) 538-1000 |