| Business | Phone |
| Nelson Thread Grinding Co 8205 Lankershim Blvd, North Hollywood 91605 | (818) 768-2578 |
| Wilshire Precision Products In 7353 Hinds Ave, North Hollywood 91605 | (818) 765-4571 |
| Cal Tech Manufacturer 13026 Saticoy St, North Hollywood 91605 | (818) 982-2230 |
| Jam Precision 13026 Saticoy St # 24, North Hollywood 91605 | (818) 764-0177 |
| R A Machine Co 13026 Saticoy St # 7, North Hollywood 91605 | (818) 764-2238 |