| Nullstone Corporation | California |
| Numa | California |
| NumanaSEO | Colorado |
| Numantra Technologies, Inc. | Pennsylvania |
| Numares Health | |
| Numat Technologies, Inc. | |
| Numatic Engineering | California |
| Number A Productions | California |
| Number One On The List | |
| Number Six, LLC | |
| NumberCruncher.com, Inc. | Florida |
| numberGo Holdings, LLC | Connecticut |
| NumberGuru | |
| NumbersOnly | Texas |
| Numecent | California |
| nuMedia Group, Inc. | Texas |
| NuMedics | Oregon |
| NuMedii, Inc. | California |
| Numenta | |
| Numerai | California |
| Numeral.js | Arizona |
| Numerated Growth Techologies | Massachusetts |
| Numerator | |
| Numeric | |
| Numeric Computer Systems | New York |
| Numeric Computer Systems, Inc. | New York |
| Numerical Innovations, LLC | California |
| NumericMind | |
| Numerix | New York |
| Numero | California |
| Numetric | Utah |
| Nūmi, Inc. | |
| NuMind | Massachusetts |
| Numinix Web Development Ltd | |
| Numo | Pennsylvania |
| Numorpho Cybernetic Systems | |
| NuMSP, LLC | New Jersey |
| Numus Consulting, LLC | |
| Nuna, Inc. | California |
| NuNames.NU | Massachusetts |
| Nuntius Therapeutics, Inc. | |
| Nuo Therapeutics, Inc. | |
| NuoDB, Inc. | Massachusetts |
| Nuooly, Inc. | Texas |
| NuORDER, Inc. | California |
| NuOz Corporation | Washington |
| NuProbe | Texas |
| nuPSYS | California |
| NuPulseCV, Inc. | North Carolina |
| Nura Bio, Inc. | California |