| Abbreviation | Definition |
|---|---|
| IDSL | International Digital Solutions Ltd |
| IDSS | International Security Defense Systems, LLC |
| IDT | Indirect taxation |
| IDT | International Discount Telecommunications |
| IDTA | International Development Technical Assistance, LLC |
| IDTA | International Development & Technical Assistance, LLC |
| IDTI | Integrated Device Technology Inc |
| IEB | International Electronic Brains |
| IEC | IEC Electronics Corp |
| IEC | Independant Exchange Company |
| IEC | International Education Corporation |
| IEC | Intrepid Enterprises Corporation |
| IECC | Invincible Electric Calculator Company |
| IECE | Inland Empire Center for Entrepreneurship |
| IECG | Industrial Energy Consumers Group |
| IECI | Industrial Electro Communications Inc |
| IEDC | Indiana Economic Development Corporation |
| IEDC | Itasca Economic Development Corporation |
| IEFF | Incubadora de Empresas da Figueira da Foz |
| IEG | Internet Entertainment Group |