| Carhartt | Dearborn | 1889 |
| Carnegie Steel Company | Pittsburgh | 1892 |
| Celgene | Summit | 1986 |
| Cencora | Chesterbrook | 2001 |
| Chips and Technologies | Milpitas | 1985 |
| Citigroup | 388 Greenwich Street | October 8, 1998 |
| CME Group | Chicago, London | July 12, 2007 |
| Coach | New York City | 1941 |
| CodeGear | Scotts Valley, California | 2006 |
| Cognizant Technology Solutions | Teaneck | 1994 |
| Comcast | Philadelphia | June 28, 1963 |
| Conexant | Irvine | 1999 |
| ConocoPhillips | Houston | 1875 |
| Consol Energy | Pittsburgh | 1991 |
| Cooper Tire & Rubber Company | Findlay | 1926 |
| Corning Inc. | Corning | 1851 |
| Costco | Issaquah | 1983 |
| Coty | New York City | 1904 |
| Cox Enterprises | Atlanta | 1898 |
| Crayola LLC | Forks Township | 1885 |
| CSX Corporation | CSX Transportation Building | November 1, 1980 |
| CVS Health | Rhode Island, Woonsocket | 1963 |
| Danjaq | Santa Monica | 1962 |
| Darden Restaurants | Orange County | 1968 |
| Deckers Outdoor Corporation | Goleta | 1973 |
| Deep Space Industries | Mountain View | January 22, 2013 |
| Del Monte Foods | San Francisco | 1886 |
| Dell EMC | Hopkinton | August 1979 |
| Dell Technologies | Round Rock | September 7, 2016 |
| Dickies | Fort Worth | 1918 |
| Diebold Nixdorf | North Canton | 1859 |
| DigitalGlobe | Westminster | 1992 |
| Diners Club International | Riverwoods | 1950 |
| Discovery, Inc. | New York City | 1982 |
| Dish | Meridian | 1996 |
| Dodge | Dodge Building | December 14, 1900 |
| Dolby | San Francisco | 1965 |
| DoubleTree by Hilton | McLean | 1969 |
| Dow Chemical Company | Midland | 1897 |
| Drum Workshop | Oxnard | 1972 |
| Dunkin' Brands | Canton | 1950 |
| DXC Technology | Tysons | April 3, 2017 |
| E-Trade | New York City | 1982 |
| Eaton Corporation | Cleveland | 1911 |
| Emerson Electric | St. Louis | September 24, 1890 |
| Energizer Holdings, Inc. | St. Louis | 2000 |
| Ensoniq | Malvern | 1982 |
| Epyx | San Francisco | 1978 |