| Abbreviation | Definition |
|---|---|
| STIR | STI, Incorporated (de-listed) |
| STIR | STI, Incorporated (de-listed) |
| STIZ | Scientific Technologies, Inc. |
| STIZ | Scientific Technologies, Incorporated (de-listed) |
| STIZ | Scientific Technologies, Incorporated (de-listed) |
| STKL | Stake Technology, Limited |
| STKM | Storm King Mines (delisted) |
| STKP | Steakhouse Partners, Inc. |
| STKR | StockerYale, Inc. (Stocker and Yale, Inc.) |
| STKSF | Stockscape.Com Technology, Inc. |
| STLBY | Stolt Nielsen, S. A. |
| STLD | Steel Dymanics, Inc. |
| STLD | Steel Dynamics, Inc. |
| STLD | Steel Dynamics, Incorporated |
| STLG.IT | Starling Advanced Communications |
| STLK.PK | STL Marketing Group |
| STLS | St. Lawrence Seaway Corporation |
| STLT | Select Therapeutics, Inc. |
| STLTF | Stold Nielsen, S. A. |
| STLTF | Stold Nielsen, S. A. (de-listed) |