| Business | Phone |
| Laser Medical Engineering 320 Mount Pleasant Ave, Newark 7104 | (973) 484-9489 |
| Liro Group 744 Broad St, Newark 7102 | (973) 242-4290 |
| Netsys Engineering Corp 375 Clifton Ave # 2, Newark 7104 | (973) 483-5124 |
| Stevens Engineering Co 20 Mount Pleasant Ave, Newark 7104 | (973) 482-7040 |
| Stone & Webster Engineering 15-E N J Trnpk, Newark 7105 | (973) 465-5185 |
| Stv Inc 1 Riverfront Plz # 2, Newark 7102 | (973) 642-2201 |
| Thornton-Tomasettie Engineers 24 Commerce St # 8, Newark 7102 | (973) 242-8282 |