Alocer

Black Metal

San Antonio, Texas

Changed name

Alodex

Metalcore

El Paso, Texas

Unknown

Alpdruck

Black/Death Metal

Houston, Texas

Active

Altai-Sayan

Atmospheric Black Metal

Texas

Split-up

Altercate

Brutal Death Metal

Harlingen, Texas

Split-up

Alyis

Thrash Metal

Houston, Texas

Split-up

Amaethon

Atmospheric Black Metal

Austin, Texas

Active

Amalgam

Progressive Metal

San Antonio, Texas

Active

Amateur Podiatry

Brutal Death Metal/Goregrind

San Antonio, Texas

Active

America Inc

Heavy/Melodic Death/Thrash Metal

Dallas, Texas

Active

American Sellout

Heavy Metal

El Paso, Texas

Unknown

Amillion Pounds

Experimental Thrash Metal

Dallas/Fort Worth, Texas

Split-up

Amnesia Garden

Experimental Death Metal/Hardcore

Dallas, Texas

Active

Among the Living

Groove/Thrash Metal/Metalcore

El Paso, Texas

Active

Amoricide

Thrash Metal

Fort Worth, Texas

Split-up

Amplified Heat

Hard Rock/Blues (early); Heavy Metal/Stoner Rock (later)

Austin, Texas

Active

Amygdala

Technical/Avant-garde Death Metal/Grindcore

Texas

Unknown

An Eater's Curse

Melodic Death Metal

Corpus Christi, Texas

Active

An Open Letter

Post-Black Metal

Beaumont, Texas

Split-up

Anal Bush

Goregrind

San Antonio, Texas

Split-up

Anal Disembowelment

Slam/Brutal Death Metal

Houston, Texas

Split-up

Anarchic Destruction

Thrash Metal

Dallas, Texas

Split-up

Anaxim

Melodic/Progressive Death Metal/Grindcore

Brownsville, Texas

Split-up

Anaxiom

Progressive Metal/Deathcore

Houston, Texas (early); Louisville, Kentucky (later)

Active

Ancestor

Death Metal

Clearwater/Tampa, Florida (early); Austin, Texas (later)

Active

Ancient Cross

Heavy/Progressive Metal

San Antonio, Texas

Active

Ancient Decay

Death Metal

Euless, Texas

Split-up

Ancient Malus

Melodic Black Metal

San Antonio, Texas

Active

Ancient VVisdom

Heavy/Doom Metal, Gothic Rock/Neofolk

Austin, Texas (early); Cleveland, Ohio (later)

Active

And Darkness and Decay

Thrash Metal/Crossover

Houston, Texas

Active