| Consolidated Edison | Manhattan | 1 de janeiro de 1998 |
| Convergys | Cincinnati | 1998 |
| Cord Automobile | Estados Unidos | 1929 |
| CoreCivic | Nashville | 1983 |
| CoreWeave | Roseland | 2017 |
| Corning Inc. | Corning | 1851 |
| Corteva | Washington, D.C. | 15 de março de 2018 |
| Costco | Issaquah | 1983 |
| CouchSurfing | São Francisco | 2 de abril de 2003 |
| CoverGirl | Maryland | 1961 |
| Coverity | São Francisco | novembro 2002 |
| Crosley | Cincinnati | 1937 |
| Crunchbase | São Francisco | julho 2007 |
| Culligan | Rosemont | 1936 |
| Cummins | Columbus | 1919 |
| Currier and Ives | Nova Iorque | 1835 |
| CVS Health | Rhode Island, Woonsocket | 1963 |
| CVS Pharmacy | Woonsocket | 1963 |
| Cyan Worlds | Wilmington, Mead | 1987 |
| Cygnus Solutions | — | 13 de novembro de 1989 |
| Cyrix | Richardson | 1988 |
| D'Addario | Farmingdale | 1973 |
| D23 | Burbank | 2009 |
| DallasNews Corporation | Dallas | 2008 |
| Dana Corporation | Toledo | 1904 |
| Darden Restaurants | Condado de Orange | 1968 |
| Dean Foods | Dallas | 1925 |
| Deckers Outdoor Corporation | Goleta | 1973 |
| Deep Space Industries | Mountain View | 22 de janeiro de 2013 |
| Dell | Round Rock | 7 de setembro de 2016 |
| Dell Technologies | Round Rock | 7 de setembro de 2016 |
| Delmark | — | 1953 |
| Depositphotos | Fort Lauderdale | 4 de novembro de 2009 |
| Digidesign | Daly City | 1984 |
| Digital Photography Review | — | 1998 |
| DigitalOcean | Nova Iorque | agosto 2011 |
| Dimensional Fund Advisors | Austin | 1981 |
| Diners Club International | Riverwoods | 1950 |
| Disney Interactive Media Group | Glendale | 1994 |
| Disney Streaming Services | Nova Iorque | 13 de agosto de 2015 |
| Dolby Laboratories | São Francisco | 1965 |
| DoubleTree by Hilton | McLean | 1969 |
| Dover Corporation | Downers Grove | 1955 |
| Dr Pepper Snapple Group | Plano | 7 de maio de 2008 |
| Dun & Bradstreet | — | 1841 |
| Dunkin' Brands | Canton | 1950 |
| Dunlop Manufacturing | Benicia | 1965 |
| DuPont | Wilmington | 19 de julho de 1802 |