| Business | Phone |
| Applied Engineering Inc 5 Ray Pl, Fairfield 7004 | (973) 276-0488 |
| Aps Packaging Systems 1275 Bloomfield Ave # 7, Fairfield 7004 | (973) 575-1040 |
| Heisler Machine & Tool Co 224 Passaic Ave, Fairfield 7004 | (973) 227-6300 |
| Mahaffy & Harder Engineering 140 Clinton Rd, Fairfield 7004 | (973) 227-4004 |