| Sysco | business, public company | Houston | 1969 |
| T. Rowe Price | business, enterprise, public company | Baltimore | 1937 |
| Tablet | podcast production company, online magazine | Manhattan | June 2009 |
| TalonSoft | video game publisher, video game developer | Baltimore | 1995 |
| Tandy Corporation | video game publisher, trading company | Fort Worth | 1919 |
| Target Corporation | supermarket chain, company, public company | Minneapolis | June 24, 1902 |
| Tarleton State University | public educational institution of the United States, university | — | 1896 |
| TASCAM | business | Tokyo | 1971 |
| TaylorMade Golf Company | business | Carlsbad | 1979 |
| Tektronix | business | Beaverton | 1946 |
| Teledyne FLIR | business | Wilsonville | 1978 |
| Telltale Games | video game publisher, video game developer, business, independent business, enterprise | San Rafael | July 2004 |
| Tengen | video game publisher, video game developer | Milpitas | 1987 |
| Teradyne | business, public company | North Reading | 1960 |
| Tesla Energy | corporation, brand, organization, business, company | Fremont | — |
| Texas A&M University | public educational institution of the United States, United States senior military college, land-grant university, public research university | College Station | 1876 |
| Texas A&M University System | state university system | — | 1948 |
| Texas Christian University | church college, private not-for-profit educational institution, Christian school, private university | Fort Worth | 1873 |
| Texas Tech University | public educational institution of the United States, public research university | — | 1923 |
| Textron | conglomerate, public company | Rhode Island, Providence | 1923 |
| Thanhouser Company | film studio | New Rochelle | 1909 |
| The Asylum | film production company, film distributor, film studio | Hollywood, Los Angeles | 1997 |
| The Athletic | online newspaper, podcast network, business, sports journalism | San Francisco | January 2016 |
| The Bank of New York Mellon | business, enterprise | New York City | 2007 |
| The Beverly Hilton | hotel | — | 1955 |
| The Biltmore Los Angeles | hotel | — | 1923 |
| The Bitter End | concert hall, café, nightclub | — | 1961 |
| The Catholic University of America | Catholic university | — | 1887 |
| The Cheesecake Factory | restaurant chain, public company | Calabasas | 1978 |
| The Cigna Group | business, enterprise, public company | Bloomfield | 1982 |
| The Citadel | United States senior military college | — | 1842 |
| The Earth Institute | academic department, research institute, business | New York City | 1995 |
| The Fletcher School of Law and Diplomacy | law school, university | Medford | 1933 |
| The French Laundry | restaurant | — | 1900 |
| The Gillette Company | business, defunct organization, enterprise, public company | — | September 28, 1901 |
| The Halal Guys | restaurant, restaurant chain, fast casual restaurant | — | 1990 |
| The Hoover Company | business, subsidiary company | North Canton | 1908 |
| The Leading Hotels of the World | business | New York City | 1928 |
| The Linq | casino, hotel | — | 2014 |
| The McClatchy Company | publishing house, business, public company | Sacramento | 1857 |
| The Metropolitan Opera | production company, opera company, organization | Metropolitan Opera House | 1880 |
| The MIT Press | book publisher, open-access publisher, university press, academic publisher | Cambridge | 1932 |
| The New School | research university, private not-for-profit educational institution, educational institution, open-access publisher, private university | — | 1919 |
| The New Yorker | news magazine, publishing house, website, magazine, production team | New York City | February 21, 1925 |
| The Onion | monthly newspaper, weekly newspaper, business | Chicago | 1988 |
| The Pierre | hotel | — | 1930 |
| The Rockefeller University | biological research institute, private not-for-profit educational institution, private university | New York City | 1901 |
| The Signature at MGM Grand | skyscraper, condo hotel | — | 2006 |