- The Agave Posse Band
- The Akins
- The A.L. Phillps Family
- The Alabama Cowboy,
- The Alex Michael Band
- The Alferd Packer Memorial String Band
- The All Night Gang
- The All-Togethers
- The Almanac Singers
- The Almost Patsy Cline Band
- The Amalgamators
- The Amazing Delores
- The Amazing Rhythm Aces
- The Amundruds
- The Andy Rau Band