| Abbreviation | Definition |
|---|---|
| SSPI | Solid State Pharma Inc |
| SSPI | Specialty Silicone Products, Inc. |
| SSPI | Specialty Silicone Products, Incorporated |
| SSPI | Spectrum Signal Processing, Inc. |
| SSPI | System Support Products Inc |
| SSPI | System Support Products, Inc. |
| SSPMC | Sharjah Steel Pipe Manufacturing Company |
| SSPN | Small Stores Profit Network |
| SSPN | Softmart Selected Partner Network |
| SSPP | Southern Society for Philosophy and Psychology |
| SSPU | Slovenska Spolocnost pre Povrchove Upravy (Slovak Society for Surface Treatment) |
| SSPW | Schneider, Shay, Pian, Worcester Architects |
| SSRG | Stephen Sanders Research Group |
| SSRI | Silver Standard Resources Inc |
| SSS | Serious Statistical Software Company |
| SSS | Sharp Shooter Supply |
| SSS | Spy Supply Store |
| SSS | Summit Settlement Services |
| SSS | Superstore Southwest Supply |
| SSSC | Southwest Student Services Corporation |