| Rank | Abbreviation | Meaning |
|---|
| ***** | ICCA | Independent Computer Consultants Association
| |
| ***** | ICCA | International Convention Center Association
| |
| ***** | ICCA | International Cruise Council of Australia
| |
| ***** | ICCA | International Congress and Convention Association
| |
| **** | ICCA | Irish Correspondence Chess Association
| |
| **** | ICCA | Instituto de Crédito de las Cajas de Ahorros
| |
| **** | ICCA | Independent Catholic Church of America
| |
| **** | ICCA | Instituto Cultural Colombo-Aleman
| |
| **** | ICCA | Institute for the Church and Community Arts
| |
| **** | ICCA | International Championship of Collegiate A Cappella
| |
| **** | ICCA | Institut Canadien des Comptables Agréés
| |
| **** | ICCA | Iranian Cultural Community of Austin
| |
| **** | ICCA | Instituto Cultural Cravo Albin
| |
| **** | ICCA | International Certified Crop Advisors
| |
| **** | ICCA | Iranian Canadian Cultural Association
| |
| *** | ICCA | Italian Canadian Cultural Association
| |
| *** | ICCA | International Community Collage of Antalya
| |
| *** | ICCA | Illinois Cheerleading Coaches Association
| |
| ** | ICCA | Instituto Para La Conservacion Y Capacitacion Ambiental
| |
| ** | ICCA | International Correspondence of Corkscrew Addicts
| |
| ** | ICCA | International Caribbean Carnival Association
| |
| ** | ICCA | International Center for Contemporary Arts
| |
| ** | ICCA | International Commission for Combating Anti-Semitism
| |
| ** | ICCA | Insurance Commercial Collectors Association
| |
| ** | ICCA | International Championship of College A
| |