- AC/DC Tribute -- AC Lewis
- AC Lewis -- A.C. Newman
- AC One -- A.C. Sharp
- AC Sixteen -- AC x DC
- AC4 -- Acacia Collective
- Acacia Downs -- Academia Parabuten
- Academic Choir "Dolna" -- Academy
- Academy and Chorus of St. Martin in the Fields -- Academy Of St. Martin-In-The-Fields
- Academy of St. Martin-in-the-Fields Chamber Ensemb -- Academy X Entertainment
- Acadenmicos Do Salguetro -- Acanto
- Ação Direta -- Acappella Praise
- Acappella Praise & Worship -- Acapulco Tropimar