| Abbreviation | Definition |
|---|---|
| IPUR | Innova Pure Water, Inc. |
| IPVC | Ipvoice.Com, Inc. |
| IPVO | IPVoice Communications, Inc. |
| IPXL | Impax Laboratories |
| IQIQ | Vialink Company |
| IQPT | I Q Power Technology, Inc. |
| IRAE | International Resorts & Entertainment Group |
| IRBT | iRobot Corporation |
| IREC | Imperial Petroleum Recovery Corporation |
| IREG | Information Resources Engineering, Inc. |
| IREP | Interep National Radio, S. A. |
| IRETS | Investors Real Estate Trust |
| IREXE | Irex Corporation |
| IRGB | Iron & Glass Bancorp, Inc. |
| IRGB | Iron & Glass Bancorp, Incorporated |
| IRGR | International Realty Group |
| IRIC | Information Resources, Inc. |
| IRIDQ | Iridium World Communications, LTD. (in bankruptcy) |
| IRIX | Iridex Corporation |
| IRON | Ironstone Group, Inc. |