| Acronym | Definition |
|---|
| SSII➣Societe de Services et d'Ingenierie Informatique |
| SSII➣Service Sector Innovation Index (EU) |
| SSII➣Scenario Systems International, Inc. (Chicago, IL) |
| SSII➣Super Scout II (truck model) |
| SSII➣Special Serial Input Interface |
| SSII➣Suitability and Security Investigations Index |
| SSII➣Scientific Software International, Inc. (est. 1972; Lincolnwood, IL) |