Bands

Headstone Missionary

United States · Groove Metal

Heavy Weather

Poland · Stoner Metal/Rock

Hellshock

United States · Groove Metal

Heritage

Greece · Stoner Rock/Metal

Hexenjäger

France · Doom/Stoner Metal

Hitman

Canada · Stoner/Thrash Metal

Hollywood Indian

United States · Groove Metal

Honolulu Blitz

Denmark · Stoner/Sludge/Doom Metal

Hostile Dawn

United Kingdom · Thrash/Groove Metal/Crossover (early); Stoner Metal (later)

Huaicont

Argentina · Progressive Death/Groove Metal

Huanastone

Sweden · Stoner Metal/Rock

Imperfection

Germany · Groove Metal

Incite Burst

Hungary · Groove Metal

Innermost Fear

Greece · Heavy/Groove Metal with Alternative Rock elements

Innerself

Spain · Thrash/Groove Metal

Inner Spirit

Germany · Thrash/Groove Metal

In the Vein

Chile · Groove Metal

Intrinsecal Orb

Mexico · Black/Death/Groove Metal/Crossover

In Vain

Greece · Doom/Stoner Metal

Inverse Shift

Malta · Industrial/Groove Metal

In Vinum

Argentina · Stoner/Doom Metal

Iron Worzel

Australia · Sludge/Stoner Metal

Isaw

Australia · Groove Metal

Jelaga

Indonesia · Southern Metal/Rock