| Taygeta Network Security Services | California |
| Taykey, Inc. | New York |
| Taylannas, Inc. | |
| Taylor & Pond Corporate Communications, LLC | California |
| Taylor Business Institute | Illinois |
| Taylor Data Systems, Inc. | South Carolina |
| Taylor Design | California |
| Taylor Design | |
| Taylor Electronics, Inc. | Florida |
| Taylor Interactive | Maryland |
| Taylor Microwave, Inc. | Florida |
| Taylor Telephone Cooperative, Inc. | Texas |
| Taylor University | Indiana |
| Taylored Ideas | Texas |
| Taylored Systems | Indiana |
| TaylorMade DESIGN | Vermont |
| TaylorWorks, Inc. | Florida |
| Taysha GTx | Texas |
| Taysys Software | California |
| Taza Systems | California |
| Tazi AI | California |
| TazWorks, LLC | Utah |
| TBC, Inc. | |
| TBCASoft, Inc. | |
| TBG Biotechnology Corporation | |
| TBG Security, Inc. | Massachusetts |
| TBH Creative, LLC | Indiana |
| TBI Audio Systems, LLC | Georgia |
| TBI.NET | Florida |
| TBJ Investments, LLC | |
| TBS Industries, Inc. | Pennsylvania |
| TC Communications, Inc. | California |
| TC Concepts | Texas |
| TC Design | Minnesota |
| TC Digital | Minnesota |
| TC Globe, LLC | |
| TC Squared Marketing | |
| TC-TEKS Computers | Wisconsin |
| TCF Designs, LLC | |
| TCG Digital | Illinois |
| TCG GreenChem, Inc. | |
| TCG Network Services | Massachusetts |
| TCG Networks Services | Massachusetts |
| TCG, Inc. | California |
| Tchopshop Media | Louisiana |
| TCI Technologies | New York |
| TCII | Florida |
| TCN | Utah |
| TCO Land Services | |
| tCognition | |