| Business | Phone |
| Spectrum Laboratories Inc 524 Pelham Ave, Piscataway 8854 | (732) 752-1400 |
| Ace Testing Labs Inc 2 Lakeview Ave, Piscataway 8854 | (732) 968-1919 |
| Joseph A Berres 15 Woodlake Dr, Piscataway 8854 | (732) 463-9100 |
| Eastern Micro Lab 1056 Stelton Rd, Piscataway 8854 | (732) 981-8998 |
| Janx 33 Clawson St, Piscataway 8854 | (732) 748-0220 |