Suffocating Psychedelic Doom / Sludge Metal from Austin.

Sungrinder is a stoner metal and rock band from Orange County, California, formed in 2015, rooted in the Southern California tradition of sun-scorched fuzz riffs and hazy, groove-driven heavy rock.

Sunken Meadow is a Long Island, New York band formed in 2012 that plays technical power/thrash metal, blending the precision and speed of thrash with the melodic ambition and guitar work of power metal.

Sunlander is a progressive/thrash metal band from Norman, Oklahoma, formed in 2017, combining the rhythmic aggression of thrash with the compositional complexity and time-signature experimentation of progressive metal.

Sunless are a progressive death metal band from Minneapolis, Minnesota, formed in 2016, known for intricately layered compositions that blend dissonant technical death metal with atmospheric and avant-garde sensibilities. Their work draws comparisons to Gorguts and Ulcerate in its dense, labyrinthine approach to extreme music.

Sunlord is a New York-based heavy/speed metal act formed in 2013, channeling the raw energy of classic 1980s metal with a hard-driving, no-frills approach rooted in traditional heavy metal riffing and high-octane tempos.

Formed in Atlanta, Georgia in 2023, Sunmancer blend melodic death metal with metalcore in a style that pairs melodic guitar work and aggressive rhythmic chug, reflecting the active underground extreme metal scene of the American South.

Sunn O))) are one of the most influential drone/doom metal acts in the world, formed in Los Angeles in 2000 by Stephen O'Malley and Greg Anderson as a continuation and expansion of the Earth drone legacy. Their music consists of monolithic walls of heavily amplified guitar feedback and sub-bass rumble that blur the lines between metal, minimalist composition, and ritual sound art.

Sunoath is a post-black metal project from Somerville, Massachusetts, formed in 2021, crafting atmospheric and emotionally charged black metal that incorporates post-rock textures and expansive, melodic dynamics.