| Business | Phone |
| Grindley Manufacturing Inc 1989 Blake Ave, Los Angeles 90039 | (323) 665-5781 |
| Hunter Inc 6205 Wilmington Ave, Los Angeles 90001 | (323) 587-3832 |
| Smith & Smith Tools 7519 S Western Ave, Los Angeles 90047 | (323) 752-0055 |
| Specialty Surface Grinding Co 345 W 131st St, Los Angeles 90061 | (310) 538-4352 |