| Abbreviation | Definition |
|---|---|
| ITC | International Technical Ceramics |
| ITC | International Technidyne Corporation |
| ITC | International Transistor Corporation |
| ITC | International Transmission Company |
| ITC | International Travel Connections |
| ITC | International Typeface Corporation |
| ITCA | International Technology Channels Association |
| ITCB | International Textiles and Clothing Bureau |
| ITCC | International Tube and Conduit Company |
| ITCI | International Training Consortium Inc |
| ITCI | Interstate Telcom Consulting Inc |
| ITCSA | Increase In Trunk Cross Sectional Areas |
| ITDC | IT Data Consulting LLC |
| ITEA | Institute of Taoist Education and Acupuncture Inc. |
| ITEC | Innovative Tube Equipment Corporation |
| ITEC | Instrument Transformer Equipment Corporation |
| ITEP | inter- Tech Energy Progress, Inc. |
| ITFL | Indian Terrain Fashions Ltd |
| IT-FL | Information Technology For Life |
| ITG | International Trading Group, Incorporated |