| Rank | Abbreviation | Meaning |
|---|
| ***** | IAIA | Italian Association of International Accountants
| |
| **** | IAIA | Inter-American Improvement Association, Inc.
| |
| **** | IAIA | International Association of Introduction Agencies
| |
| **** | IAIA | Israeli Association of Independent Architects
| |
| **** | IAIA | International Academy of Independent Artists
| |
| *** | IAIA | Institute of American Indian Arts
| |
| *** | IAIA | International Association of Impact Assessment
| |
| *** | IAIA | International Association of Indian Arts
| |
| *** | IAIA | International Association for Integrative Action
| |
| *** | IAIA | International Association of Investment Advisers
| |
| *** | IAIA | International Aquatech Innovation Award
| |
| *** | IAIA | Inter American Improvement Association
| |
| *** | IAIA | International Alliance on Information for All
| |
| ** | IAIA | InternationalAssociation for Impact Assessment
| |
| ** | IAIA | Integrated Arts Information Access
| |
| ** | IAIA | Insure America Incorporated Agency
| |
| ** | IAIA | Irkutsk Aircraft Industrial Association
| |
| * | IAIA | Israeli American Intercultural Advantage
| |
| * | IAIA | Illinois Arson Investigators Association
| |
| * | IAIA | Indoor Air Investigators Association
| |
| * | IAIA | Index Allergy Information And
| |
| * | IAIA | International Association of Impact Assessors
| |
| * | IAIA | Illinois Aquaculture Industry Association
| |
| * | IAIA | INTIER AUTOMOTIVE INC.
| |
| * | IAIA | Indian Analytical Instruments Association
| |