- The Anointed Sons of Jersey -- The Anonymous
- The Anonymous Random Face -- The Answers
- The Ant Buddies -- The Anthony Choir
- The Anthony Rochesters -- The Antioch Ensemble
- The Antipatterns -- The Antony's Vinyls
- The Antrachx -- The Apache Relay
- The Apaches -- The Apex
- The Apex Theory -- The Apollo's
- The Apollos -- The Appetizers
- The Applause -- The Applebaum Jazz Piano Duo
- The Applebaum Jazz Piano Duo -- The Appointed Pace Sisters
- The Appreciation Post -- The April Year
- The Aprons -- The Aquarian Duo
- The Aquarians -- The Arbors
- The Arc -- The Arcane Order