| Abbreviation | Definition |
|---|---|
| SWK | Swick Mining Services Ltd |
| SWL | Seymour Whyte Limited |
| SWM | Seven West Media Limited |
| SWMKOA | Seven West Media Limited |
| SWMKOP | Seven West Media Limited |
| SWMKRA | Seven West Media Limited |
| SWMKRB | Seven West Media Limited |
| SWMKRQ | Seven West Media Limited |
| SWMKRR | Seven West Media Limited |
| SWN | Silver Swan Group Ltd |
| SWR | Southern Crown Resources Limited |
| SWRO | Southern Crown Resources Limited |
| SWW | Solverdi Worldwide Ltd |
| SXE | Southern Cross Electrical Engineering Ltd |
| SXG | Southern Cross Goldfields Ltd |
| SXL | Southern Cross Media Group |
| SXR | Skywest Airlines Ltd |
| SXT | Stratum Metals Limited |
| SXX | Southern Cross Exploration NL |
| SXY | Senex Energy Limited |