| IETA | Idaho Education Technology Association 
| Others |
| IETA | Indonesian English Teachers Association
| Others |
| IETA | Inheritance and Estate Tax Act
| Others |
| IETA | Inland Empire Taxpayers Association
| Others |
| IETA | Institutional Equity Traders Association
| Others |
| IETA | Insulation and Environmental Training Agency
| Others |
| IETA | Insurance Education & Training Associates, L.L.C.
| Others |
| IETA | International Conference on Industrial Electronics, Technology, and Automation
| Others |
| IETA | International ECP (External Counter Pulsation) Therapists Association
| Others |
| IETA | International EECP Therapists Association
| Others |
| IETA | International Emissions Trading Association
| Others |
| IETA | International Engineering Technologists Agreement
| Others |
| IETA | International Experience and Technical Assistance
| Others |
| IETA | International Experience Technical Assistance
| Others |