| Business | Phone |
| Quantex Environmental Labs 22 Distribution Blvd, Edison 8817 | (732) 248-3335 |
| Severn Trent Labs 777 New Durham Rd # 7, Edison 8817 | (732) 549-3900 |
| Affiliated Eng Labs Inc 105 Newfield Ave, Edison 8837 | (732) 417-0167 |
| Encore Specialties Llc 180 Mill Rd, Edison 8817 | (732) 248-4222 |
| Materials Testing Inc 180 Mill Rd, Edison 8817 | (732) 248-3777 |