| McKesson Corporation | Irving | 1994 |
| MGA Entertainment | Los Angeles | 1979 |
| Microchip Technology | Chandler | 1989 |
| Milwaukee Electric Tool Corporation | Brookfield | 1924 |
| MIPS Technologies | Sunnyvale | 1984 |
| Mistwalker | Tóquio, Japão, Honolulu | 2004 |
| Molson Coors Brewing Company | Chicago, Montreal | 2005 |
| Morgan Stanley | Nova Iorque | 1931 |
| MOS Technology | Norristown | 1969 |
| Motorola | Schaumburg | 25 de setembro de 1928 |
| MPEG LA | Denver | 1996 |
| National Instruments | Austin | 1976 |
| National Oilwell Varco | Houston | 1862 |
| National Semiconductor | Santa Clara | 1959 |
| National Wrestling Alliance | Houston | 1948 |
| NBCUniversal | GE Building | 1926 |
| NCR | Atlanta, Augsburgo | 1884 |
| NetApp | Sunnyvale | 1992 |
| Netgear | São José, Dover | 1996 |
| Netscape | Mountain View | 4 de abril de 1994 |
| Network Solutions | Herndon | 1979 |
| Neuberger Berman | Nova Iorque | 1939 |
| News Corp | Nova Iorque | 28 de junho de 2013 |
| NeXT | Palo Alto, Redwood City | 20 de junho de 1985 |
| Noble Energy | Houston | 1932 |
| Northern Trust | Illinois, Chicago | 1889 |
| Norwegian Cruise Line | Condado de Miami-Dade | 1966 |
| Nutanix | São José | 2009 |
| O.F. Mossberg & Sons | North Haven | 1919 |
| Oakley, Inc. | Foothill Ranch | 1975 |
| Office Depot | Boca Raton | 1986 |
| Ohio Valley Wrestling | Louisville | 1997 |
| Olin Corporation | Clayton | 1892 |
| One Race Films | Studio City | 1995 |
| Onsemi | Scottsdale | 18 de junho de 1992 |
| Open Invention Network | Durham, Nova Iorque | 10 de novembro de 2005 |
| Oshkosh Corporation | Oshkosh | 1917 |
| Owens-Illinois | Toledo, Perrysburg | 1903 |
| Pantone | Carlstadt | 1962 |
| Parametric Technology Corporation | Boston | maio 1985 |
| Paramount Global | Nova Iorque, One Astor Plaza | 4 de dezembro de 2019 |
| Paramount+ | Nova Iorque | 28 de outubro de 2014 |
| Peabody Energy | St. Louis | 1883 |
| Peavey | Meridian | 1965 |
| Peet's Coffee | Emeryville | 1966 |
| PeopleSoft | Pleasanton, Califórnia | 1987 |
| Philip Morris International | Stamford, Lausana | 1987 |
| Pioneer Hi-Bred | Johnston | 1926 |