| IIEE | Indian Institute of Ecology and Environment 
| Others |
| IIEE | Indonesian Institute for Energy Economics
| Others |
| IIEE | Institute of Industrial Electronics Engineering
| Others |
| IIEE | Institute of Integrated Electrical Engineers
| Others |
| IIEE | Intent Initiation Execution Effect
| Others |
| IIEE | Intent Initiative Execution and Effect
| Others |
| IIEE | International Institute for Emotional Empowerment
| Others |
| IIEE | Ion Induced Electron Emission
| Others |
| IIEE | Iran International Electricity Exhibition
| Others |