| Business | Phone |
| Haglid Engineering & Assoc Inc 230 Braen Ave, Wyckoff 7481 | (201) 447-1839 |
| Jpl Assoc 337 Blue Hill Ter, Wyckoff 7481 | (201) 891-5554 |
| Elliot Technologies 383 Cedar Hill Ave, Wyckoff 7481 | (201) 703-9494 |
| Osterkorn Engineering Assoc 121 Godwin Ave, Wyckoff 7481 | (201) 848-8190 |