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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| National Abatement And Wreck | Gaithersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02543 |
| National Construction Company | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00995 |
| Nature Calls Septic Design LLC | Myersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01907 |
| Naumann Plumbing, LLC | Crofton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00221 |
| Nautical Contracting, LLC | Forest Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02210 |
| Naylor Plumbing, Heating and Air Cond | Finksburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00652 |
| Near Shore Engineering LLC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01049 |
| New Dimensions Plumbing | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01367 |
| Next Level Home Inspections | Huntingtown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01196 |
| Nicolas Drain Services LLC | Belair, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00856 |
| NJR & Associates LLC | West Friendship, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02311 |
| Noland Landworks LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01236 |
| Northern Way LLC | Jarrettsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02235 |
| Norton Land Design LLC | Ellicott City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00840 |
| Nos | Lexington Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01032 |
| Nu Engineering LLC | Waldorf, MD | — | Inspector (Property Transfer) | 00880 |
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