| Techzam Computer Services, Inc. | California |
| TechZavy | |
| Techzo | Illinois |
| TechZone360 | Connecticut |
| TecInfo Communications, LLC | Mississippi |
| TECKpert, LLC | Florida |
| TECKpert, LLC | |
| Teckro, Inc. | |
| Tecla | |
| TECLens, Inc. | |
| Teclison Ltd | New Jersey |
| Tecnavia | Minnesota |
| Tecnical Project Systems, LLC | Texas |
| Tecno Tech | |
| Teco Diagnostics | California |
| Tecomet, Inc. | Massachusetts |
| Tecore, Inc. | Maryland |
| Tecplot, Inc. | Washington |
| Tecra | Texas |
| Tecra Systems, Inc. | Texas |
| TecServ, Inc. | Utah |
| Tecsomed | California |
| Tecstra Systems Corporation | Minnesota |
| Tecton, Inc. | California |
| Tectonic Therapeutic | |
| Tecture, LLC | Illinois |
| Tecum Capital | Pennsylvania |
| Tecxpert | Ohio |
| Tecziq Solutions | |
| Ted (Edward) Goas | |
| TED Conferences, LLC | |
| Ted Palla, Inc. | California |
| Ted Sundstrom | |
| TeDan Surgical Innovations | Texas |
| TEDCO | Maryland |
| Tedge Networks | Florida |
| TEDMED‚ LLC | District of Columbia |
| TEDOR Pharma, Inc. | |
| TEDS, Inc. | Virginia |
| Tedshots Productions, Inc. | |
| Tedss.com | South Carolina |
| TEDxDetroit | Michigan |
| Teel Technologies | Connecticut |
| Teemo, Inc. | New York |
| Tefken Ventures | |
| TEGA Therapeutics, Inc. | |
| Tegility | |
| Tegmine Therapeutics | |
| Tego, Inc. | Massachusetts |
| Tegra Medical | Tennessee |