| Acronym | Definition |
|---|
| CSSI➣Critical Skills Shortage Initiative |
| CSSI➣California Strategic Sourcing Initiative |
| CSSI➣Computer Support Services, Inc. (Irving, TX, USA) |
| CSSI➣Computer Security Subsystem Interpretation |
| CSSI➣Computer Software & Services Industry |
| CSSI➣Containment Spray System, Post-Accident Injection Phase |
| CSSI➣Client Specific Systems, Inc. |
| CSSI➣Consolidated Supply & Services International Ltd (Kazakhstan) |
| CSSI➣Contract Systems Software, Inc. |