A&M Records
AArising Records
Abduction Records
About Time Music Company
Absinthe Records
Acacia Records
Accelerate Records
Accurate
Ace Records
Acidsoxx Musicks
Acorn Music
Acoustic Disc
Acta
ACV Records
AD Music
Africassette Music
Agg Records
Agnas Musicproduction Co.
Agni Music
Ajax Records
Alchemy Records
AlgoRhythm Music
Alias Records
SMI
Sm:)e Communications
Smithsonian/Folkways
Smokin Beats
Sneezeguard Records
Soap Records
SOB Entertainment
Soleilmoon Recordings
Solo Art Records
Soma
Sombient
Somersault Records
SONARt