PSIM

AcronymDefinition
PSIMPhysical Security Information Management
PSIMPower Supply Interface Module (various companies)
PSIMPublic Safety Incident Management (Med-Media, Inc.)
PSIMProgrammable Synthesizer Interface Module
PSIMPeriodically Shifted Interleaved Memory
PSIMPump Systems Improvement Modeling Tool (educational software; Pump Systems Matter)
PSIMPrivate Sector Investment Management (Asian Development Bank)