List of bands (28):

Steelheart
Stellar Silence
Steve Vai
Stick To Your Guns
Stratovarius
Stray From The Path
Stryper
Subway to Sally
Sully Erna
Sunday at 9
Swallow the Sun
Sweet Noise
Sword
Sylosis
Symptone
System of a Down
Tailgunner
TainT
Tallah
Temperance