| Merrell (compañía) | Rockford | 1981 |
| Merrill | Nueva York | 6 de enero de 1914 |
| Meta Platforms | Menlo Park | 29 de julio de 2004 |
| Metro Pictures | Los Ángeles | 1915 |
| Milton Bradley Company | East Longmeadow | 1860 |
| Missouri Pacific Railroad | San Luis | 1917 |
| MITRE Corporation | Bedford | 1958 |
| Modulus Graphite | Richmond | 1978 |
| Mondelēz International | Chicago | 2012 |
| Monster Beverage | Minnesota | 1935 |
| Monster.com | Guaynabo | 1999 |
| Morgan Stanley | Nueva York | 1931 |
| Motorola Solutions | Chicago | 4 de enero de 2011 |
| MUFG Union Bank | San Francisco | 1864 |
| Namesys | Oakland | 2004 |
| Narus | Sunnyvale | 1997 |
| National Geographic Partners | Nueva York | 9 de septiembre de 2015 |
| National Instruments | Austin | 1976 |
| National Oilwell Varco | Houston | 1862 |
| National Semiconductor | Santa Clara | 1959 |
| Nationwide Mutual Insurance Company | One Nationwide Plaza | 1926 |
| Navteq | Chicago | 1985 |
| Neiman Marcus | Dallas | 1907 |
| Neon | Nueva York | 2017 |
| NetApp | Sunnyvale | 1992 |
| Netflix, Inc. | Los Gatos | 29 de agosto de 1997 |
| NetJets | Columbus | 1964 |
| Neuberger Berman | Nueva York | 1939 |
| New Balance | Boston | 1906 |
| New Holland | Italia | 1891 |
| New York Life Insurance Company | Nueva York | 1845 |
| New York Mercantile Exchange | Nueva York | 1872 |
| New York Shipbuilding Corporation | Camden | 1899 |
| Newmont Mining Corporation | Denver | 1916 |
| NeXT | Palo Alto, Redwood City | 20 de junio de 1985 |
| NextEra Energy | Juno Beach | 1925 |
| Nielsen Company | Nueva York | 1994 |
| Nike | Beaverton | 25 de enero de 1964 |
| Nordstrom | Seattle | 1901 |
| Norfolk Southern Railway | Norfolk | 1894 |
| North American Arms | Provo | 1972 |
| Northern Trust | Illinois, Chicago | 1889 |
| Northwestern Mutual | Milwaukee | 1857 |
| NRG Energy | Princeton, Houston | 1905 |
| Nuance Communications | Burlington | 1992 |
| Nucor | Charlotte | septiembre 1955 |
| Nvidia | Santa Clara | 5 de abril de 1993 |
| NZXT | Los Ángeles | 2004 |