| Abbreviation | Definition |
|---|---|
| TCI | Twizted Comix Inc |
| TCIC | The Competitiveness Improvement Company |
| TCIG | Tower Crane Interest Group |
| TCIP | Thermal Custom International Packaging |
| TCIR | Target Corporation Incentives Recognition |
| TCJ | Timber Cascade Joinery |
| TCK | Trust Company of Kansas |
| TCL | Communication LTD |
| TCL | Tata Communications Ltd |
| TCL | Thai Caprolactam Public Company, Limited |
| TCL | The Cookie Laboratory |
| TCM | Turner Classic Movies |
| TCMB | The Cookie Monster Burger |
| TCMS | Thuringowa Construction And Maintenance Services |
| TCN | Tacoma Commercial Network |
| TCN | The Computer Nerd |
| TCN | Transmission Company of Nigeria |
| TCNC | Title Company of North Carolina |
| TCNF | Thomas, Coon, Newton & Frost law firm |
| TCOA | Tax Centers of America |