| Abbreviation | Definition |
|---|---|
| IRDC | Innovative Rural Development Corporation |
| IRDC | International Resource Development Corp |
| IRE | Iron Realms Entertainment |
| IREDA | Indian Renewable Energy Development Agency Ltd. |
| IREG | Internet Real Estate Group |
| IREI | Institutional Real Estate Inc |
| IRFC | Indian Railway Finance Corporation |
| IRFC | Indian Railways Finance Corporation |
| IRFS | Ingersoll-Rand Financial Services |
| IRG | Industrial Realty Group, LLC |
| IRGC | Islamic Revolutionary Guard Corp |
| IRGCN | Islamic Revolutionary Guards Corp Navy |
| IRGI | Inveresk Research Group Inc |
| IRGI | Inveresk Research Group, Inc. |
| IRI | Industrial Representatives Inc |
| IRI | Information Resources Inc |
| IRI | Innovative Routines International |
| IRI | International Registries Inc |
| IRIE | Isolated Rivers Incredible Experiences |
| IRIPL | Interactive Realities International Pvt, LTD. |