| Abbreviation | Definition |
|---|---|
| RSAS | RESAAS Services, Incorporated, (formerly RSA Security, Incorporated) |
| RSAS | RSA Security, Inc. |
| RSBI | Ridgewood Financial, Inc. |
| RSBI | Ridgewood Financial, Incorporated (de-listed) |
| RSBI | Ridgewood Financial, Incorporated (de-listed) |
| RSCR | Residential Care, Inc. |
| RSCR | Residential Care, Incorporated (de-listed) |
| RSCR | Residential Care, Incorporated (de-listed) |
| RSFC | Republic Security Financial Company |
| RSGI | Riverside Group, Inc. |
| RSHX | Rockshox, Inc. |
| RSIH | R S I Holdings, Inc. |
| RSII | Frontline Capital Group |
| RSIS | R S I Systems, Inc. |
| RSLC | R S L Communications, LTD. |
| RSLN | Roslyn Bancorp, Inc. |
| RSMI | Royal Silver Mines, Inc. |
| RSPN | Response U S A, Inc. |
| RSRV | Reserve Petroleum Company |
| RSTFE | SunResorts LTD of Nevada |