| Abbreviation | Definition |
|---|---|
| RST | Restore |
| RSW | Renishaw |
| RTBG | Real Time Business Group |
| RTC | Rtc Grp. |
| RTG | Rethink Grp |
| RTG | Russian Timber Group, LTD. (de-listed) |
| RTG | Russian Timber Group, LTD. (de-listed) |
| RTI | Rolta Regs |
| RTN | Restaurant Gp |
| RTO | Rentokil Initial, P.L.C. |
| RTT | Rcm Tech. |
| RTTS | Rcm Tech. Sub |
| RUBI | Rubicon Soft |
| RUG | Renn Universal |
| RUR | Rurelec, P.L.C. |
| RUS | Raven Russia |
| RUSW | Raven Russia W |
| RWA | Robert Walt. |
| RWD | Robert Wiseman |
| RWS | Rws Hldgs |