| Abbreviation | Definition |
|---|---|
| SSN | Sonus Corporation |
| STB | State Bancorp of New York |
| STS | Supreme Industries, Inc. |
| STY | Spatial Technology, Inc. |
| STZ | Signal Technology Corporation |
| SVI | SVI Solutions, Inc. |
| SVT | Servotronics, Inc. |
| SWC | Stillwater Mining Company |
| SYC | Sybron Chemicals, Inc. |
| SYI | S Y Bancorp, Inc. |
| SZB | SouthFirst Bancshares, Inc. |
| TAE | Targets Trust IV |
| TAG | Tag- It Pac, Inc. |
| TAM | Tubos de Acero de Mexico, S. A. |
| TBA | Thermo Bioanalysis Corporation |
| TBM | Morgan Stanley Dean Witter |
| TBP | Tab Products Company |
| TCA | Thermo Cardiosystems, Inc. |
| TCK | Thermo Ecotek Corporation |
| TCX | Targets Trust I |