| Tinfoilhat | Oregon |
| Ting Internet | |
| Ting Therapeutics | |
| Tinhorn Consulting, LLC | |
| Tinicum, Inc. | |
| Tinker And the Primes | |
| Tinker Graphics & Marketing | Florida |
| Tinktanc | New Hampshire |
| TinMan Systems, Inc. | Washington |
| Tino | |
| Tinrocket | New York |
| Tint Technologies, Inc. | California |
| Tintash | |
| Tintri | California |
| Tintronics Industries | Alabama |
| Tinuiti | |
| Tiny Technologies, Inc. | California |
| Tinybio | |
| Tinybird, Inc. | |
| Tinybop, Inc. | |
| tinyBuild, LLC | |
| TinyBull, Inc. | |
| TinyFrog Technologies | California |
| Tinyprovider, LLC | |
| TinySeed | Minnesota |
| Tinzi | |
| Tioga Cardiovascular | California |
| Tioga Research | California |
| Tioga Research | |
| Tipalti | California |
| Tipp Technical Solutions, LLC | Ohio |
| Tipping Point Partners | New York |
| TippingPoint Biosciences | |
| Tippingpoint Labs | |
| Tips and Tricks | North Carolina |
| TiPS, Inc. | Texas |
| Tiptree, Inc. | |
| Tire Guru Software | Utah |
| TIS Digital | |
| TISA Software, LLC | Texas |
| TISD, Inc. | Texas |
| Tisento Therapeutics | |
| Tisfoon Ulterior Systems, Inc. | |
| Tissue Genesis | Texas |
| TissueGen, Inc. | Texas |
| TissueVision, Inc. | Massachusetts |
| TissX | Minnesota |
| Titan Data | |
| Titan Global Capital Management USA, LLC | |
| Titan Growth | California |