| Acronym | Definition |
|---|
| SMSI➣Smith Micro Software Inc. (mobile software products) |
| SMSI➣Simplified Message Service Interface |
| SMSI➣Système de Management de La Sécurité de l'Information (French: Information Safety Management System) |
| SMSI➣sommet mondial de la société de l'information |
| SMSI➣Système de Mise En Sécurité Incendie (French: Fire Safety System Setting) |
| SMSI➣System Management Software, Inc. (St. Paul, MN) |
| SMSI➣Segmented Marketing Services, Inc. (Winston-Salem, NC) |
| SMSI➣Strong Metal-Support Interaction |
| SMSI➣Siemens Medical Systems, Inc. (supplier) |
| SMSI➣Saint-Mamet Saisie Informatique (French: Saint Mamet Data Entry) |
| SMSI➣Sustainable Manufacturing Sourcing Index (Nike) |