| Signpath Pharma Inc (SGTH) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| Skinovation Pharmaceutical, Inc. (SKIN) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| Soligenix Inc (SNGXD) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| Solitario Zinc Corp (USA) (XPL) NYSEAMERICAN - NYSE American | |
| Sonnen Corporation (SONP) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| South Street Financial Corp. (SSFC) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| Southwest Georgia Financial Corp. (SGB) NYSEAMERICAN - NYSE American | |
| Spark Networks Inc (LOV) NYSEAMERICAN - NYSE American | |
| Sports Field Holdings Inc (AGSE) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| St. Joseph Bancorp Inc (SJBA) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| Strategic Resources Ltd. (SGCR) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| Success Holding Group International Inc (MACC) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| Sugar Creek Financial Corp (SUGR) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| SunLink Health Systems, Inc. (SSY) NYSEAMERICAN - NYSE American | |
| Superclick, Inc. (SPCK) OTCBB - OTC (Over-The-Counter) Bulletin Board | |