| Business | Phone |
| Evidentia Engineering Inc 10 Park Pl, Short Hills 7078 | (973) 379-8855 |
| Explosives Bureau 407 Hartshorn Dr, Short Hills 7078 | (973) 467-3237 |
| Lee Chuck & Assoc Short Hills 7078 | (973) 376-9494 |
| Watkinson Engineering Po Box 714, Short Hills 7078 | (973) 493-8253 |