| Business | Phone |
| Hollywood Manufacturing Inc 11915 Vose St, North Hollywood 91605 | (818) 764-6717 |
| International Grinding Co 8216 Lankershim Blvd # 12 1/2, North Hollywood 91605 | (818) 504-9941 |
| Jack C Drees Grinding Co 11815 Vose St, North Hollywood 91605 | (818) 764-8301 |
| Specialty Precision Grinding 8217 Lankershim Blvd # 24, North Hollywood 91605 | (818) 504-2560 |