| Not Rocket Science, Inc. | Louisiana |
| Not Rocket Science, Inc. | |
| Nota Bene Global Services, Inc. | |
| Notable | California |
| Notable Labs | California |
| Notable Software, Inc. | Pennsylvania |
| Notable Systems, Inc. | Colorado |
| Notable Web | Washington |
| Notable Web, Inc. | |
| Notal Vision, Inc. | Virginia |
| Notam Brands, LLC | |
| Notarize | Massachusetts |
| Notation | New York |
| Notch | |
| Notch Creative | Washington |
| Notch Solutions, LLC | |
| Notchcode Creative | Colorado |
| Notchnet | New Hampshire |
| Note Dashboard | |
| Notebird, Inc. | Oklahoma |
| Notebleu Design, Inc. | |
| Noted Analytics, Inc. | Massachusetts |
| Notejoy | |
| NotePage | Massachusetts |
| NotePlan, LLC | |
| NotesMail | New York |
| NoteSmith | Colorado |
| Notetracks, Inc. | |
| Noteworthy AI, Inc. | Connecticut |
| Nothbay Networks, Inc. | California |
| Nothing But NET | Arizona |
| Nothing Marketing | |
| Notifex Systems | Vermont |
| Notified | |
| Notion | |
| Notion Labs, Inc. | California |
| Notion, LLC | Colorado |
| Notionlytics | California |
| Notiontheory | |
| Notitia Biotechnologies | New Jersey |
| Noto | |
| Notre Dame de Namur University | California |
| Notre Dame of Maryland University | Maryland |
| Nott Ltd | New Mexico |
| Nott Marketing Services | Connecticut |
| Notte Labs, Inc. | |
| Notus Digital | |
| Noun Project, Inc. | |
| Nova & More | |
| Nova Advertising | |