IMSG
| Acronym | Definition |
|---|---|
| IMSG | International Messages |
| IMSG | International Marketing and Sales Group (Moscow, Russia) |
| IMSG | Iraqi Media Safety Group (advocacy and training) |
| IMSG | Information Management System Group |
| IMSG | Informational Message |
| IMSG | International Metals Study Group |
| IMSG | IM Systems Group, Inc. |
| IMSG | Institutional Mortgage Service Group (Countrywide Credit Industries, Inc.) |