- The Rattlehounds -- The Relentless Division
- The Reliable Narrators -- The Riverboat Gamblers
- The Riverboat Soul Band -- The Royal Macadamians
- The Royal Marines -- The Scamps (Jump blues)
- The Scandal -- The Shack Monks
- The Shackeltons -- The Similar Trends
- The Similou -- The Snobs
- The Snobs -- The Space Elevators
- The Space Galaxy Orchestra -- The Ste. Genevieve Guignolée Singers
- The Steadtfasts -- The Suicide Commandos
- The Suicide File -- The T-K-O's
- The T4 Project -- The Throbs
- The Throes -- The Throttles