| Acronym | Definition |
|---|
| IMMS➣International Marine Minerals Society (Honolulu, HI) |
| IMMS➣International Military Music Society |
| IMMS➣Integrated Marine Monitoring System (various organizations) |
| IMMS➣Insurance Marketing and Management Services |
| IMMS➣International Money Management System (various companies) |
| IMMS➣Integrated Maintenance Management System |
| IMMS➣Information Model Management Service (service availability forum) |
| IMMS➣Intermediate Maintenance Activity Maintenance Management Subsystem |
| IMMS➣Installation Maintenance Management System |
| IMMS➣Interim Maintenance Management System |