| SIMV | Sheltered Industries of the Meramec Valley 
| Others |
| SIMV | Susquehanna Inundation Map Viewer
| Others |
| SIMV | Synchronized Intermitted Modulation Ventilation
| Others |
| SIMV | Synchronized intermittent mandatory ventilation
| Others |
| SIMV | Synchronized Intermittent Mechanical Ventilation
| Others |
| SIMV | Synchronous Intermittent Mandatory Ventilation
| Others |