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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Ultimate Septic & Construction | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00675 |
| United Rentals (North America), Inc.; D | Middleton, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02030 |
| United Rentals (North America), Inc.; D | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02046 |
| United Rentals (North America), Inc.; D | Hyattsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02501 |
| United Rentals (North America), Inc.; D | Glenig, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02503 |
| United Rentals, DBA: Reliable Onsite S | Gaithersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02277 |
| United Site Services | Glen Bernie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02052 |
| United Site Services, Inc | Capitol Heights, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01926 |
| Upper Bay Marine service | Chesapeake City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02440 |
| USA Potty, LLC | Chevy Chase, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02109 |
| Utility Locating Service, Inc. | Brooksville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01600 |
| Utkewicz Land Mgmt LLC | Centerville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01465 |
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