| Ampex | Redwood City | 1944 |
| Ampm | — | 1978 |
| AMR Corporation | Fort Worth | 1 de outubro de 1982 |
| Ancestry.com | Lehi | 1983 |
| Anchor Brewing Company | São Francisco | 1896 |
| Apollo Global Management | Solow Building | 1990 |
| Apollo Group | Phoenix | 1973 |
| Applied Materials | Santa Clara | 1967 |
| Aramark | Filadélfia | 1959 |
| Arby's | Sandy Springs | 1964 |
| ARCO | Los Angeles | 1966 |
| Arctic Cat | Plymouth | junho 1960 |
| Arista Networks | Santa Clara | outubro 2004 |
| ARP Instruments, Inc. | Estados Unidos | 1969 |
| Arthur J. Gallagher & Co. | Itasca | 1927 |
| Ashland Inc. | Covington | 1924 |
| Ashton-Tate | Torrance | agosto 1980 |
| Associação Automobilística Americana | Heathrow | 1902 |
| ASTM | West Conshohocken | 1961 |
| Astrobotic Technology | Pittsburgh | novembro 2007 |
| AT&T | Dallas | 5 de outubro de 1983 |
| Au Bon Pain | Boston | 1978 |
| Augusta National Golf Club | — | 1930 |
| Auntie Anne's | Lancaster U.S. Post Office building | 1988 |
| AutoNation | Fort Lauderdale | 1996 |
| Avis Budget Group | Parsippany-Troy Hills | 2006 |
| Babcock & Wilcox | Charlotte, Estados Unidos, Nova Iorque | 1867 |
| Bad Dragon | Phoenix | junho 2008 |
| Bain Capital | John Hancock Tower | 1984 |
| Baker Motor Vehicle | Cleveland | 1899 |
| Baldwin Piano Company | Trumann | 1862 |
| Ball Corporation | Broomfield | 1880 |
| Bank of America | Charlotte | 1784 |
| Bank of America Merrill Lynch | Bank of America Tower | 2009 |
| Bank of North Dakota | Bismarck | 1919 |
| Baskin-Robbins | Canton | 1945 |
| Be Incorporated | Menlo Park | 1990 |
| BEA Systems | São José | 1995 |
| Beatport | — | 2004 |
| Becton Dickinson | São José, Becton, Dickinson and Company headquarters | 1897 |
| Bed Bath & Beyond, Inc. | Midvale | 2023 |
| Belkin International, Inc. | Los Angeles | 1983 |
| Bellator MMA | Newport Beach | 2008 |
| Ben & Jerry's | South Burlington | 1978 |
| Bendix Corporation | — | 1924 |
| Bentley Systems | Exton | 1984 |
| Bergdorf Goodman | Nova Iorque | 1929 |
| Bethlehem Steel | Bethlehem | 1857 |