Bands

Ácida

Argentina · Thrash/Speed Metal

Acidcore

Ecuador · Symphonic Metalcore

Acorea

Australia · Groove/Thrash Metal (early); Sludge/Groove Metal (later)

Acoustic Anomaly

Russia · Post-Metal

A.C.O.V.S.U.R.

Russia · Deathcore

Acrópole

Brazil · Black Metal

Ada Vada

Norway · Progressive Metal/Rock (early); Alternative Rock (later)

A Day of Violence

United States · Deathcore

Ad Extirpenda

France · Symphonic Black Metal

Adfectus Exundant

United States · Progressive/Melodic Death/Thrash Metal

Adligate

Germany · Death/Thrash/Groove Metal

Ad Lustrum

Brazil · Ambient/Experimental Drone Doom/Black Metal

Admiral of Black

United States · Thrash/Groove/Southern Metal

Adultery

Bulgaria · Death/Black Metal (early); Black Metal (later)

Ad Undas

United Kingdom · Doom/Post-Metal

Adversus

Belgium · Black Metal

Aedh

Canada · Black Metal

Aember

France · Symphonic Death Metal

Aenigma

Italy · Symphonic/Gothic Metal

Æolian

Spain · Melodic Death Metal

Aeons Confer

Germany · Symphonic Black/Death Metal

Aeos

Germany · Progressive Metal

Äes

Finland · Black Metal

Aeterna Nox

Russia · Symphonic Black Metal