| Integrated Circuits and Advanced Technologies | Academic & Science |
| Initiative for Climate Action Transparency | Academic & Science |
| International Center for Actuators and Transducers | Academic & Science |
| International Conference on Artificial Reality and Telexistence | Associations & Organizations |
| Isotope Coded Affinity Tag | Chemistry |
| Illinois Coalition Against Tobacco | Community |
| Institute for Community Action Training | Community |
| International Conference on Additive Technologies | Community |
| Istation Continual Assessment Technology | Community |
| Indian Community Activities Tokyo | Community |
| Idaho Center for Advanced Technology | Computing |
| Information Communications and Automation Technology | Computing |
| Ibm Configuration Assistance Tool | Computing |
| Institute for Creativity Arts and Technology | Computing |
| International Centre for Automotive Technology | Computing |
| Interdisciplinary Center for Applied Technology | Computing |
| International Corporation of Advance Technology | Computing |
| Information, Communication, and Automation Technology | Computing |
| Insulation Contact and Air Tight | Contact |
| Initiative for Columbia Ataxia and Tremor | General |
| Intercultural Coaching And Teaching | General |
| Institutional Change Assessment Tool | General |
| Intelligent Contracting Automation Tool | General |
| Integrating Communications Assessment and Tactics | General |
| Intelligent Computerized Anti Theft System | General |
| Innovative Clean Air Technologies | General |
| International Conference on Automotive Technology | General |
| International Conference on Automotive and Transportation | General |
| International Cat Agility Tournaments | General |
| Isotope Coded Affinity Tags | General |
| Irondequoit Cable Access Television | General |
| International Convention Against Torture | General |
| Indirect Cost Allocation Tool | General |
| Iowa Curriculum Alignment Tool | General |
| Impact Capacity Assessment Tool | General |
| International Center for Air Transportation | Governmental |
| Indiana Citizens Alliance for Transit Indiana Citizens | Governmental |
| Indiana Citizens Alliance for Transit | Governmental |
| International Coalition Against terrorism | International |
| International Center for Automotive Technology | International |
| Inspire Creative Adventure and Therapeutic | Medical |
| Integrated Configuration Assistant Tool | Softwares |
| Integrated Change Assessment Team | Space Science |
| International Cat Agility Tournament | Sports |
