Bands

Protozoid

United States · Technical Progressive Metal

Psyclosarin

United States · Groove/Death Metal

Rainbows Are Free

United States · Doom/Stoner Metal/Rock

Reckless Redemption

United States · Metalcore (early); Deathcore (later)

Red Vinter

United States · Death/Doom Metal

Relic

United States · Black Metal

Rictus

United States · Groove Metal/Deathcore (early); Progressive Death Metal (later)

Rifflord

United States · Doom Metal/Stoner Rock

Ripgut

United States · Thrash/Death Metal

Ritual Contrition

United States · Progressive Death/Thrash Metal

Russian Circles

United States · Post-Metal/Rock

Sanctus Bellum

United States · Heavy/Doom Metal

Satevis

United States · Symphonic Black/Death Metal

Sea of Treachery

United States · Melodic Death Metal/Metalcore

Shallow Black

United States · Sludge/Doom Metal

Shrineburner

United States · Stoner/Doom Metal

Sickdeer

United States · Black/Death Metal

Sindar

United States · Progressive

Sinsation

United States · Groove Metal/Hard Rock

So Hideous

United States · Post-Black Metal/Shoegaze

Solis Nigri

United States · Black Metal

Somnuri

United States · Sludge Metal

Sorizon

United States · Progressive Metal

SorrowRealm

United States · Blackened Death