| IIER | Illinois Independent Evaluators Registry 
| Others |
| IIER | Institute for Integrated Economic Research
| Others |
| IIER | Institute of International Economics Relations
| Others |
| IIER | International Institute for Engineers and Researchers
| Others |
| IIER | International Institute of Engineers and Researchers
| Others |
| IIER | Iraqi Institute for Economic Reform
| Others |
| IIER | Issues In Educational Research
| Others |