| AAI | American Alpine Institute (skr.) |
|---|---|
| AHI | Animal Health Institute (skr.) |
| AI | Asphalt Institute |
| API | American Petroleum Institute (skr.) |
| CIE | Catholic Institute of Education |
| CIE | Central Institute of Education |
| CIE | Cleveland Institute of Electronics |
| CIE | Chinese Institute of Electronics |
| EIAR | Ethiopian Institute of Agricultural Research (skr.) |
| ELI | European Language Institute |