| IAEC | Illinois Association of Extended Care 
| Others |
| IAEC | Indian Activities Executive Committee
| Others |
| IAEC | Indian Activity Executive Committee
| Others |
| IAEC | Institute Animal Ethics Committee
| Others |
| IAEC | Institutional Animal Ethics Committee
| Others |
| IAEC | Institutional Animal Ethics Council
| Others |
| IAEC | Inter-American Economic Council
| Others |
| IAEC | Interim Afghan Electoral Commission
| Others |
| IAEC | International Address Element Code
| Others |
| IAEC | International Aerospace Engineering Conference
| Others |
| IAEC | International Alliance of Exhibiting Companies
| Others |
| IAEC | International Alternative Energy Center
| Others |
| IAEC | International Asami Executive Committee
| Others |
| IAEC | International Association of Educating Cities
| Others |
| IAEC | International Association of Elevator Consultants
| Others |
| IAEC | International Association of Evangelical Chaplains
| Others |
| IAEC | International Atlantic Economic Conference
| Others |
| IAEC | International Atomic Energy Commission
| Others |
| IAEC | International Automotive Engineering Conference
| Others |
| IAEC | Iowa Association of Electric Cooperatives
| Others |
| IAEC | Iraqi Atomic Energy Commission
| Others |
| IAEC | Israel Atomic Energy Commission
| Others |
| IAEC | Isuzu Advanced Engineering Center
| Others |