| Company | Location | Certifications | Credential Score | License # |
|---|---|---|---|---|
| Ajv Engineering Inc | Woodbridge Twp, NJ | Cathodic Protection SpecialistClosureInstallation-Entire UST SystemSubsurface EvaluationTank Testing | 91 | US1013165 |
| Ans Consultants Inc | South Plainfield Boro, NJ | ClosureInstallation-Entire UST SystemSubsurface EvaluationTank Testing | 82 | US00709 |
| Arcadis Us Inc | Edison Twp, NJ | Cathodic Protection SpecialistClosureInstallation-Entire UST SystemSubsurface EvaluationTank Testing | 91 | US00132 |
| Atlantic Response Inc | East Brunswick Twp, NJ | Closure | 54 | US01070 |
| Awt Environmental Services Inc | Old Bridge Twp, NJ | ClosureSubsurface Evaluation | 63 | US00301 |
| Benvironmental Investigations LLC | Jamesburg Boro, NJ | Closure | 54 | US963752 |
| C-3 Technologies LLC | North Brunswick Twp, NJ | Cathodic Protection TesterClosureInstallation - RepairInstallation-Entire UST SystemSubsurface EvaluationTank Testing | 100 | US261402 |
| Cme Associates | Sayreville Boro, NJ | ClosureInstallation-Entire UST SystemSubsurface EvaluationTank Testing | 82 | US00048 |
| Code Enviro-Sciences LLC | Carteret Boro, NJ | ClosureSubsurface Evaluation | 63 | US01280 |
| Code Environmental Services Inc | Carteret Boro, NJ | ClosureSubsurface Evaluation | 63 | US00598 |
| Edgewood Properties | Piscataway Twp, NJ | ClosureHHO Subsurface Evaluation | 63 | US709909 |
| Environmental Strategies & Applications Inc | Middlesex Boro, NJ | ClosureSubsurface Evaluation | 63 | US00112 |
| Envirotrac Ltd | South Plainfield Boro, NJ | ClosureSubsurface Evaluation | 63 | US00898 |
| Excel Environmental Resources Inc | North Brunswick Twp, NJ | Subsurface Evaluation | 54 | US00675 |
| G Tech Petroleum Services Inc | Woodbridge Twp, NJ | Tank Testing | 29 | US1021199 |
| Gws Contractors Inc | Jamesburg Boro, NJ | Closure | 54 | US330445 |
| Jh Wright Construction Inc. | North Brunswick Twp, NJ | Closure | 54 | US00672 |
| Lee Stein Mainteneance Inc | Middlesex Boro, NJ | ClosureInstallation-Entire UST SystemTank Testing | 73 | US00513 |
| Lewis Environmental LLC | Metuchen Boro, NJ | Closure | 54 | US00728 |
| Mott Macdonald LLC | Woodbridge Twp, NJ | Cathodic Protection SpecialistClosureHHO Subsurface EvaluationInstallation-Entire UST SystemTank Testing | 91 | US00089 |
| NEKUS ENERGY SERVICES, LLC dba WHITEMARSH | Middlesex Boro, NJ | Installation-Entire UST System | 54 | US755741 |
| Peak Environmental, A Nova Group,Gbc Company | East Brunswick Twp, NJ | ClosureSubsurface Evaluation | 63 | US00984 |
| Potomac-Hudson Environmental Inc | South Amboy City, NJ | HHO ClosureHHO Subsurface Evaluation | 63 | US00763 |
| Simple Tank Services LLC | Middlesex Boro, NJ | ClosureSubsurface Evaluation | 63 | US792505 |
| Tomko Oil Services Inc | Perth Amboy City, NJ | HHO Closure | 54 | US744817 |
| Vfs Environmental Inc | East Brunswick Twp, NJ | ClosureSubsurface Evaluation | 63 | US01018 |
26 companies in the NJDEP UST certification program are based in Middlesex County as of 2026-07-17. Companies based elsewhere in New Jersey also commonly serve the county.
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