| Abbreviation | Definition |
|---|---|
| RSI | Rising Stars, Inc. |
| RSIC | Razab Sekh Information Company |
| RSII | Right Stuf International, Inc. |
| RSKM | Rogi Sahayata Kendra Manager |
| RSL | Rochester Systems Ltd |
| RSLI | Ralph Scott Lifeservices Inc |
| RSLS | Richard Schneider Language Services |
| RSN | Racing Simulation Network |
| RSN | Radio Sound Network |
| RSO | RIMCO Support Office |
| RSO | Robert Stigwood Organization |
| RSO | Roger & Sherry Olsen Livestock |
| RSP | Retail Service Provider |
| RSP | River Skwad Productions |
| RSP | Rover Special Products |
| RSPC | Riverside South Planning Corporation |
| RSPL | Rational Systems Pvt Ltd |
| RSPL | Reliable Security Products Ltd |
| RSPL | Reliance Salgaoncar Pvt, Ltd. |
| RSPO | Roundtable on Sustainable Palm Oil |