| 3Com | Marlborough | 1979 |
| Adobe | San Jose | February 28, 1982 |
| Aetna | Hartford | 1853 |
| Agilent Technologies | Santa Clara | 1999 |
| Airbnb | San Francisco | 2008 |
| Albemarle Corporation | Baton Rouge | 1994 |
| Albertsons | Boise | 1939 |
| Alcon Entertainment | Los Angeles | 1997 |
| AllianceBernstein | Nashville | 1967 |
| Alliant Techsystems | Arlington County | 1990 |
| Allstate | Northbrook | April 17, 1931 |
| Ally Financial | Detroit, New York City | 1919 |
| Alpha Tomo Global Resoures Sdn Bhd | Milwaukee | 1948 |
| American LaFrance | Summerville | 1873 |
| Amgen | Thousand Oaks | 1980 |
| Amkor Technology | Tempe | 1968 |
| AMR Corporation | Fort Worth | October 1, 1982 |
| Analog Devices | Norwood | 1965 |
| Anduril Industries | California | 2017 |
| Aniplex of America | Santa Monica | 2005 |
| APC by Schneider Electric | West Kingston | 1981 |
| Apollo Group | Phoenix | 1973 |
| Apple Inc. | Cupertino | April 1, 1976 |
| Applied Materials | Santa Clara | 1967 |
| ARCO | Los Angeles | 1966 |
| ArenaNet | Bellevue | 2000 |
| Ashland Inc. | Covington | 1924 |
| Automatic Data Processing | Roseland | 1949 |
| Babcock & Wilcox | Charlotte, United States, New York City | 1867 |
| Baker Hughes | Houston | 1987 |
| Banana Republic | San Francisco | 1978 |
| Basecamp | Chicago | 2004 |
| Baskin-Robbins | Canton | 1945 |
| Bausch & Lomb | Vaughan, Rochester | 1853 |
| Bechtel | Reston | 1906 |
| Benchmark | Menlo Park | 1995 |
| Bethlehem Steel | Bethlehem | 1857 |
| BFG Technologies | Lake Forest | 2002 |
| Bloomberg L.P. | New York City, 731 Lexington Avenue | October 1, 1981 |
| Blur Studio | Venice | 1995 |
| Booking Holdings | Norwalk | July 1997 |
| Borders Group | Ann Arbor | 1971 |
| BorgWarner | Auburn Hills | 1880 |
| Bose Corporation | Framingham | 1964 |
| Broadcom | Palo Alto | 1961 |
| Caesars Entertainment Corporation | Las Vegas, Paradise | 1937 |
| Cambridge Analytica | London | 2014 |
| Capital Group Companies | Los Angeles | 1931 |