Sumptus Ignis is a progressive death/doom metal band from Key Largo, Florida, formed in 2017, weaving dense, slow-burning compositions that balance mournful doom passages with technical death metal aggression.

Sun Descends Black is a blackened death metal band from Little Rock, Arkansas, formed in 2019, fusing the blasting intensity of death metal with the cold dissonance and atmosphere of black metal.

Sun in Shadows is a melodic death/doom metal band formed in 2019 whose location remains undisclosed, pairing the melancholic melody of death-doom with the emotive sweep of melodic death metal.

Sun Speaker is a Phoenix, Arizona act formed in 2018 that blends blackened melodic death metal with deathcore, pairing soaring melodic leads with blast-driven aggression and heavy breakdowns.

Suncinder is a Detroit, Michigan act formed in 2019 that melds progressive melodic death metal with deathcore, layering technical riffing and melodic complexity over punishing, breakdown-driven passages.

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.

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.

Sunreaver is a blackened death metal band from Pennsburg, Pennsylvania, formed in 2018, fusing the ferocity of death metal with the cold malevolence of black metal in a style that draws on both American and European extreme metal traditions.

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