| Acronym | Definition |
|---|
| SSAI➣Science Systems and Applications, Inc. |
| SSAI➣Server-Side Ad Insertion (online advertising) |
| SSAI➣Scuola Superiore dell'Amministrazione dell'Interno (Italian: School of the Administration of the Interior; Italy) |
| SSAI➣Statistical Society of Australia, Inc. |
| SSAI➣Swiss Society for Allergology and Immunology (Bern, Switzerland) |
| SSAI➣Somerville Security Associates Inc. (Northridge, CA) |
| SSAI➣Support Systems Associates, Incorporated |