| Box | Redwood City | May 2009 |
| Broadcom | Palo Alto | 1961 |
| Brooks Brothers | New York City | 1818 |
| Browning Arms Company | Morgan | 1927 |
| Bucyrus International | South Milwaukee | 1880 |
| Bunge Limited | Hamilton, White Plains | 1818 |
| Caesars Entertainment Corporation | Las Vegas, Paradise | 1937 |
| Cardinal Health | Dublin | 1971 |
| Caterpillar Inc. | Irving | 1925 |
| CBS Corporation | CBS Building | November 30, 1997 |
| Celestron | Torrance | 1960 |
| Celgene | Summit | 1986 |
| Cencora | Chesterbrook | 2001 |
| Century 21 Real Estate | Madison | 1971 |
| Chrome Holding Co. | South San Francisco | April 2006 |
| Circuit City Stores | Richmond | 1984 |
| Citrix Systems | Fort Lauderdale | 1989 |
| CME Group | Chicago, London | July 12, 2007 |
| CodeGear | Scotts Valley, California | 2006 |
| Cognizant Technology Solutions | Teaneck | 1994 |
| Coldwell Banker | Cairo, Madison | August 27, 1906 |
| Colt's Manufacturing Company | West Hartford | 1855 |
| Columbia Sportswear Company | Cedar Mill | 1938 |
| Comcast | Philadelphia | June 28, 1963 |
| Comodo Group | Clifton | 1998 |
| Control Data Corporation | Bloomington | 1957 |
| CoreWeave | Roseland | 2017 |
| Costco | Issaquah | 1983 |
| Coty | New York City | 1904 |
| Cox Enterprises | Atlanta | 1898 |
| Crayola LLC | Forks Township | 1885 |
| Cushman & Wakefield | New York City | 1917 |
| CVS Health | Rhode Island, Woonsocket | 1963 |
| DallasNews Corporation | Dallas | 2008 |
| Deep Space Industries | Mountain View | January 22, 2013 |
| Deere & Company | Moline | 1868 |
| Dell | Round Rock | September 7, 2016 |
| Dell Technologies | Round Rock | September 7, 2016 |
| Dickies | Fort Worth | 1918 |
| Diebold Nixdorf | North Canton | 1859 |
| Dimensional Fund Advisors | Austin | 1981 |
| Diners Club International | Riverwoods | 1950 |
| Dodge | Dodge Building | December 14, 1900 |
| Dodge & Cox | San Francisco | 1930 |
| Dow Chemical Company | Midland | 1897 |
| Dow Inc. | Midland | January 1, 2019 |
| Dow Jones & Company | New York City | 1882 |
| Drum Workshop | Oxnard | 1972 |