| Business | Phone |
| Aero Products Co 21 N 8th St, Belleville 7109 | (973) 759-0959 |
| Automatic Screw Products 681 Main St, Belleville 7109 | (973) 751-7007 |
| B & M Machine Co 67 Greylock Ave, Belleville 7109 | (973) 751-0789 |
| Victory Precision Components 233 Valley St, Belleville 7109 | (973) 751-5505 |