| Ampm | — | 1978 |
| Anchor Brewing Company | São Francisco | 1896 |
| Andrew Christian | Hollywood | 2001 |
| Aniplex of America | Santa Mônica | 2005 |
| Ansys Inc. | Canonsburg | 1970 |
| Anthropic | São Francisco | 26 de janeiro de 2021 |
| Apollo Computer | Chelmsford | 1980 |
| Applied Materials | Santa Clara | 1967 |
| Aramark | Filadélfia | 1959 |
| Archie Comics | Nova Iorque, Pelham | 1939 |
| ARCO | Los Angeles | 1966 |
| Arctic Cat | Plymouth | junho 1960 |
| ArenaNet | Bellevue | 2000 |
| Arthur Andersen | Chicago | 1913 |
| AST Computers | Irvine | 1980 |
| AstraZeneca (United States) | Gaithersburg | 1988 |
| Astrobotic Technology | Pittsburgh | novembro 2007 |
| Atari Corporation | Sunnyvale | 2 de julho de 1984 |
| Auburn Automobile | Auburn | 1900 |
| Augusta National Golf Club | — | 1930 |
| Auntie Anne's | Lancaster U.S. Post Office building | 1988 |
| Automatic Data Processing | Roseland | 1949 |
| Avatar Press | Rantoul | 1996 |
| Avis Budget Group | Parsippany-Troy Hills | 2006 |
| Axalta Coating Systems | Filadélfia | 1866 |
| Bad Dragon | Phoenix | junho 2008 |
| Baker Hughes | Houston | 1987 |
| Baker Motor Vehicle | Cleveland | 1899 |
| Baldwin Piano Company | Trumann | 1862 |
| Banana Republic | São Francisco | 1978 |
| Bank of America | Charlotte | 1784 |
| Bank of America Home Loans | Charlotte | 2009 |
| Bank of America Merrill Lynch | Bank of America Tower | 2009 |
| Bare Knuckle Fighting Championship | Filadélfia | 2018 |
| Barrett Firearms Manufacturing | Christiana | 1982 |
| Becton Dickinson | São José, Becton, Dickinson and Company headquarters | 1897 |
| Bed Bath & Beyond, Inc. | Midvale | 2023 |
| Bell & Howell | Wheeling | 1907 |
| Bellator MMA | Newport Beach | 2008 |
| BellSouth | Atlanta | 1984 |
| Bendix Corporation | — | 1924 |
| Bentley Systems | Exton | 1984 |
| Bergdorf Goodman | Nova Iorque | 1929 |
| Berkeley Software Design | — | 1991 |
| Best Buy | Richfield | 22 de agosto de 1966 |
| Bethlehem Steel | Bethlehem | 1857 |
| BFG Technologies | Lake Forest | 2002 |
| Bicycle Playing Cards | Erlanger | — |