| Tynker | California |
| Type Classes | |
| Type Network, LLC | |
| Type One Energy | |
| Type One Ventures | California |
| Type Supply, LLC | Maryland |
| TypeAI, Inc. | |
| Typecast Us, Inc. | California |
| Typedef, Inc. | |
| Typedream | California |
| Typeface | California |
| TypePad | California |
| TypeScript | Washington |
| Typesense, Inc. | Texas |
| TypeTrust | California |
| Typewriter Therapeutics, Inc. | |
| Typhon Group | Louisiana |
| Typing Chimp Software, LLC | California |
| TypingDNA | |
| Typli.ai | Missouri |
| Typographics | |
| Tyra Biosciences, Inc. | California |
| Tyrannosaurus Tech | Georgia |
| Tyrosys Corporation | Texas |
| TYS Creative, Inc. | California |
| Tyton Media | Kansas |
| Tyvola Design | North Carolina |
| TZ Medical, Inc. | |
| tZERO Technologies, LLC | Utah |
| Tzunami, Inc. | New York |
| TZWorks, LLC | |
| U B Corporation | Florida |
| U First Capital | |
| U M G Technologies, Inc. | Massachusetts |
| U Marketing & IT | |
| U Visibility, LLC | Connecticut |
| U&R Solutions, LLC | Michigan |
| U+ Venture Building | California |
| U-PARC | Pennsylvania |
| U-Thrive Marketing, LLC | |
| U.A. Systems, Inc. | California |
| U.C. Centers for Disease Control and Prevention | |
| U.CAN.BE | Delaware |
| U.Group | Virginia |
| U.S. Antenna Products, LLC | Maryland |
| U.S. Automation, Inc. | Wisconsin |
| U.S. Business Systems, Inc. | Indiana |
| U.S. Clain, Inc. | New York |
| U.S. Communications | Nevada |
| U.S. Computer Connection | Connecticut |