| Business | Phone |
| Behringer Metal Works Inc 108 Jabez St, Newark 7105 | (973) 589-0546 |
| E L Koller Manufacturer & Coal Chute Co 96 1st St, Newark 7107 | (973) 483-0333 |
| Haenssler Sheet Metal Works 592 Hawthorne Ave, Newark 7112 | (973) 373-6360 |
| Pausin Manufacturing Co 727 Frelinghuysen Ave, Newark 7114 | (973) 242-3208 |
| Sheet Metal Products Inc 794 N 6th St, Newark 7107 | (973) 482-0450 |
| State Metal Products Co 100 Vanderpool St, Newark 7114 | (973) 824-6317 |