| Illinois College Press Association's | Academic & Science |
| Illinois College Press Association | Academic & Science |
| Independent Connecticut Petroleum Association | Business |
| International Chiropractic Pediatric Association | Business |
| International Corrections and Prisons Association | Business |
| Israeli Computerized Polygraph Association | Business |
| Israeli Cefs and Patissier Association | Business |
| Institute of Certified Public Accountants | Business |
| International Cast Polymer Alliance | Community |
| Irish Course Providers Association | Community |
| Indiana Collegiate Press Association | Community |
| Iowa Concrete Paving Association | Community |
| Illinois Concrete Pipe Association | Community |
| International Centre for Peforming Arts | Community |
| Isolated Children's Parents' Association | Community |
| Indian Commercial Pilots Association | Community |
| International Cast Polymer Association | Community |
| Institute of Coaching Professional Association | Community |
| Itasca County Pickelball Association | Community |
| Inland Conservatory for the Performing Arts | Community |
| Indian Centre for Performing Arts | Community |
| Indian Center for Performing Arts | Community |
| Internal Cognitive Programming Assistance | Computing |
| IBM Content and Predictive Analytics | General |
| Iterative Closest Point Algorithm | General |
| Indian Consumer Privacy Act | General |
| Incriminate Collect Process Analyze | General |
| Intergovernmental Cooperative Purchasing Agreement | General |
| Illinois Condominium Property Act | Governmental |
| Institute of Certified Practising Accountants | Governmental |
| Institutul de Cercetari pentru Pedologie si Agrochimie | International |
| International Certificate for Piano Artists | International |
| International Compliance Professionals Association | International |
| International Centre for Policy Advocacy | International |
| International Communications Privacy Act | International |
| International Commission on Penicillium and Aspergillus | International |
| International Child Protection Advisors | International |
| International Committee on Penicillium and Aspergillus | International |
| International Conference on Precision Agriculture | International |
| Internet Community Ports Act | Internet |
| Internet Consumer Protection Agency | Internet |
| Isolated Children's Parents' Association Of Australia | Regional |
