| Gold's Gym | Dallas | 1965 |
| Goodrich Corporation | Charlotte | 1870 |
| Goodyear | Akron | 29 de agosto de 1898 |
| Google Nest | Palo Alto | 2010 |
| Grado Labs | Brooklyn | 1953 |
| Graham-Paige | Evansville | 1927 |
| Greyhound Lines | One Dallas Center | 1914 |
| Grumman Aircraft Engineering Corporation | Bethpage | 6 de diciembre de 1929 |
| GTE Corporation | Stamford | 1918 |
| Guardian Industries | Auburn Hills | 1932 |
| Guggenheim Partners | Chicago | 1999 |
| Hanesbrands | Winston-Salem | 1 de enero de 2000 |
| Hanna-Barbera | Los Ángeles, Sherman Oaks Galleria | 1957 |
| Hardee's | San Luis | 9 de septiembre de 1960 |
| Harman International Industries | Stamford | 1980 |
| Hartzell Propeller | Piqua | 1917 |
| Hasbro | Pawtucket | 1923 |
| Head | Kennelbach | 1950 |
| Hearst Communications | Torre Hearst | 13 de julio de 1920 |
| Heinemann | Londres | 1890 |
| Hennessey Performance Engineering | Houston | 1992 |
| Henry Ford Company | Detroit | 1901 |
| Hercules Inc. | Wilmington | 1912 |
| Herman Miller | Zeeland | 1923 |
| Heroku | San Francisco, California | 2007 |
| Hertz | Estero | 1918 |
| Hess Corporation | Nueva York | 1919 |
| Hewlett-Packard | Palo Alto | 2 de julio de 1939 |
| Holiday Inn | Denham | 1952 |
| Hormel | Austin | 1891 |
| Hornady | Grand Island | 1949 |
| HubSpot | Cambridge | 2006 |
| Hughes Helicopters | Mesa, Culver City | 1947 |
| Hulu | Santa Mónica | marzo 2007 |
| Huntington Ingalls Industries | Newport News | 31 de marzo de 2011 |
| Hupmobile | Detroit | 1909 |
| Hy-Vee | West Des Moines | 1930 |
| Hyperion Solutions | Santa Clara | 1981 |
| IBM | Armonk | 16 de junio de 1911 |
| IBM Research | — | 1945 |
| IGN | San Francisco | 29 de septiembre de 1996 |
| Imation | Oakdale | 1996 |
| Immediate Music | Santa Mónica | 1993 |
| Impossible Foods | Redwood City | 2011 |
| Incyte | Wilmington | 2001 |
| Inflection AI | Palo Alto | 2022 |
| Infor Global Solutions | Nueva York | 2002 |
| Ingram Micro | Irvine | 1979 |