Antiworld - cool for what they do, but not really my cup of tea. More horropunk, deathrock goodness.
Asphyxia - dark electronic, EBM.
Aural Vampire - indusrial, darkwave, and with a bit of synthpop tossed in, they're an awesome group from Japan.
Ayria - more dark synthpop than anything else, but she's got a cute cyber goth look that can't be denied
Aythis - the last of the A section and decidedly classical in sound.