| Abbreviation | Definition |
|---|---|
| SCSP | SoCalStockPhoto |
| SCST | Senshido Combative Science Technologies |
| SCTC | Systems & Computer Technology Corp |
| SCTD | Source Company for Training and Development |
| SCUBA | Super Cool Underwear Backstreet Apparel |
| SCVBN | Santa Clarita Valley Business Network |
| SCW | Shibuya Custom Works |
| SCYT | South Carolina Yutaka Technologies |
| SD | Secret Diamond |
| SD | Sterling Diamond |
| SD | Sunny Delight Beverages Company |
| SD&W | Shows, Dearman, & Waits |
| SDA | South Dade Automotive, Inc. |
| SDA | Space Data Association |
| SDAN | Self-Directed Advocacy Network of Maryland, Inc. |
| SDC | Satyam Development Centre |
| SDC | Scandinavian Darts Corporation |
| SDC | Schroff Development Corporation |
| SDC | Securities Data Company |
| SDC | SEMA Distributor Company |