| 2015, Inc. | Tulsa | 1997 |
| 3Com | Marlborough | 1979 |
| A.T. Kearney | Chicago | 1926 |
| Adient | Dublin | 31 de outubro de 2016 |
| Adobe | São José | 28 de fevereiro de 1982 |
| AeroVironment | Simi Valley | 1971 |
| Aetna | Hartford | 1853 |
| Agilent Technologies | Santa Clara | 1999 |
| Akamai Technologies | Cambridge, Massachusetts | 1998 |
| Albertsons | Boise | 1939 |
| Alcon Entertainment | Los Angeles | 1997 |
| Alesis | Cumberland | 1980 |
| Alexion Pharmaceuticals | Cheshire | 1992 |
| Alfred Music Publishing | Los Angeles | 1922 |
| Alienware | Miami | 1996 |
| AllianceBernstein | Nashville | 1967 |
| Ally Financial | Detroit, Nova Iorque | 1919 |
| Amazon | Seattle | 5 de julho de 1994 |
| AMD | Santa Clara | 1 de maio de 1969 |
| American Power Conversion | West Kingston | 1981 |
| American Wrestling Association | Minneapolis | 1960 |
| Ameriprise Financial | Minneapolis | 1894 |
| Amgen | Thousand Oaks | 1980 |
| Anadarko Petroleum | The Woodlands | 1959 |
| Anduril Industries | Califórnia | 2017 |
| Anheuser-Busch | St. Louis | 1852 |
| Aniplex of America | Santa Mônica | 2005 |
| Apollo Global Management | Solow Building | 1990 |
| Apple Inc. | Cupertino | 1 de abril de 1976 |
| Applied Materials | Santa Clara | 1967 |
| ARCO | Los Angeles | 1966 |
| Ashton-Tate | Torrance | agosto 1980 |
| Atari | Califórnia | 27 de junho de 1972 |
| Athletic Model Guild | El Cerrito | 1945 |
| Audiomachine | Los Angeles | 20 de agosto de 2005 |
| Automatic Data Processing | Roseland | 1949 |
| Avatar Press | Rantoul | 1996 |
| Avid | Burlington | 1987 |
| Baker Hughes | Houston | 1987 |
| Banana Republic | São Francisco | 1978 |
| Bank of America | Charlotte | 1784 |
| Barrett Firearms Manufacturing | Christiana | 1982 |
| Baskin-Robbins | Canton | 1945 |
| Bausch & Lomb | Vaughan, Rochester | 1853 |
| Beats Electronics | Culver City | 2006 |
| Benchmark | Menlo Park | 1995 |
| Best Western | Phoenix | 1946 |
| Bethlehem Steel | Bethlehem | 1857 |