| ICAA | Immigrant Culture Art Association 
| Others |
| ICAA | Independent College Advancement Associates
| Others |
| ICAA | Indiana County Assessors Association
| Others |
| ICAA | Industrial Conciliation and Arbitration Act
| Others |
| ICAA | Initiative for Conservation in the Andean Amazon
| Others |
| ICAA | Innis College Alumni Association
| Others |
| ICAA | Insane Computer Addicts Annomnyous
| Others |
| ICAA | Institute of Chartered Accountants in Australia
| Others |
| ICAA | Institute Of Chartered Accountants Of Alberta
| Others |
| ICAA | Institute of Chartered Accountants of Australia
| Others |
| ICAA | Insulation Contractors Association of America
| Others |
| ICAA | International Center for the Arts of the Americas
| Others |
| ICAA | International Centre for Albanian Archaeology
| Others |
| ICAA | International Christian Accrediting Association
| Others |
| ICAA | International Civil Aviation Authority
| Others |
| ICAA | International Colored Appaloosa Association
| Others |
| ICAA | International Conference on Aluminium Alloys
| Others |
| ICAA | International Council on Active Aging
| Others |
| ICAA | International Council on Alcohol and Addictions
| Others |
| ICAA | Invalid Children's Aid Association
| Others |
| ICAA | Investment Counsel Association of America
| Others |
| ICAA | Iowa Community Action Association
| Others |
| ICAA | Iowa County Attorneys Association
| Others |