| Abbreviation | Definition |
|---|---|
| SOS | Simons Offline Service |
| SOS | Simple Original Solutions |
| SOS | Supportive Oncology Services |
| SOS | Syracuse Orthopedic Specialists |
| SOSC | Safety Operation Supporting Center |
| SOSC | Sarsan Oilfield Supply Centre |
| SOSI | Sound Ocean Systems Inc |
| SOSI | Sound Ocean Systems, Inc. |
| SOTB | Scrap Outside The Box |
| SOTC | Sarasota Obedience Training Club |
| SOTC | Sindh Oriental Tourism Company |
| SOTC | Snow Operations Training Center |
| SOTC | Syracuse Obedience Training Club |
| SOTK | Steve On The Keys |
| SOTP | Shades Of The Past |
| SOV | Standard Oil of Venezuela |
| SOW | Sirius Onion Works |
| SOWL | ShoutOutWithLove |
| SOX | The Sound eXchange |
| SP | Simple Productions |