| Briggs & Stratton | Milwaukee | 1908 |
| Brunswick Corporation | Lake Forest | 1845 |
| Buick | Detroit | December 1899 |
| Burlington | Florence | 1972 |
| Cabot Corporation | Boston | 1882 |
| CACI | Arlington County | July 17, 1962 |
| Callaway Golf Company | Carlsbad | 1982 |
| Canadian Solar | — | 2001 |
| CarMax | Goochland County | 1993 |
| Carnival Corporation | Doral, Southampton, Florida, London, Miami | 1972 |
| Celgene | Summit | 1986 |
| Cencora | Chesterbrook | 2001 |
| Chegg | Santa Clara | 2005 |
| CHS Inc. | Inver Grove Heights | 1931 |
| Chuck E. Cheese | Irving | May 17, 1977 |
| Cinemark | Plano | 1984 |
| Cineworld | London | 1995 |
| Citigroup | 388 Greenwich Street | October 8, 1998 |
| Citizens Financial Group | Providence | 1954 |
| Clarivate | Philadelphia, London | October 3, 2016 |
| CME Group | Chicago, London | July 12, 2007 |
| Coach | New York City | 1941 |
| Cognizant Technology Solutions | Teaneck | 1994 |
| Comcast | Philadelphia | June 28, 1963 |
| ConocoPhillips | Houston | 1875 |
| Consol Energy | Pittsburgh | 1991 |
| Constellation Brands | Victor | 1945 |
| Cooper Tire & Rubber Company | Findlay | 1926 |
| Corning Inc. | Corning | 1851 |
| Corteva | Washington, D.C. | March 15, 2018 |
| Costco | Issaquah | 1983 |
| Coty | New York City | 1904 |
| Coursera | Mountain View | 2012 |
| Cray | Seattle | 1972 |
| Crocs, Inc. | Longmont | 2002 |
| Crown Castle International Corp. | Houston | January 1, 1994 |
| CSX Corporation | CSX Transportation Building | November 1, 1980 |
| Cummins | Columbus | 1919 |
| Curtiss-Wright | Charlotte | 1929 |
| CVS Health | Rhode Island, Woonsocket | 1963 |
| Cyrix | Richardson | 1988 |
| Darden Restaurants | Orange County | 1968 |
| Deckers Outdoor Corporation | Goleta | 1973 |
| Dell EMC | Hopkinton | August 1979 |
| Dell Technologies | Round Rock | September 7, 2016 |
| Denny's | Spartanburg | 1953 |
| Diebold Nixdorf | North Canton | 1859 |
| Digital Domain | Playa Vista, Venice | 1993 |