| Company | Location |
|---|---|
| Sonion A/S - Microelectromechanical Systems | Lyngby, Denmark |
| SonoPlot, Inc. | Middleton, Wisconsin, United States |
| Sonoscan Inc. | Elk Grove Village, Illinois, United States |
| Sontra Medical Corp. | Franklin, Massachusetts, United States |
| Sony Semiconductor San Antonio | San Antonio, Texas, United States |
| SoundView Technology Group | Old Greenwich, Connecticut, United States |
| source4talent | Austin, Texas, United States |
| South Wind Ltd. | Ann Arbor, Michigan, United States |
| Southern Clay Products, Inc. | Gonzales, Texas, United States |
| Southern Ionics Inc. | West Point, Mississippi, United States |
