| Business | Phone |
| Transtech Industries Inc 200 Centennial Ave # 202, Piscataway 8854 | (732) 981-0777 |
| Code Environmental Svc 100 Fleming St, Piscataway 8854 | (732) 926-8608 |
| E M & Ca 17 Meredith Pl W, Piscataway 8854 | (732) 435-0195 |
| Emsl Analytical Inc 1056 Stelton Rd, Piscataway 8854 | (732) 981-0550 |
| Ensr Consulting & Engr 20 New England Ave, Piscataway 8854 | (732) 981-0200 |
| Environmental Monitoring 17 Meredith Pl W, Piscataway 8854 | (732) 249-3005 |
| Eohsi 170 Frelinghuysen Rd, Piscataway 8854 | (732) 445-0200 |