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.

Sunrift is a stoner/doom metal band from Portland, Oregon, formed in 2023, delivering heavy riff-driven music steeped in fuzz-laden, slow-burning grooves characteristic of the Pacific Northwest's fertile heavy underground scene.

Sunrot are a sludge/drone/doom metal band from northern New Jersey, formed in 2014, known for punishing walls of noise that combine the slow-motion heaviness of doom with the abrasive corrosiveness of drone and the filth-soaked aggression of sludge.

Sunsetter is a stoner/doom metal band from Sidney, Ohio, formed in 2022, channeling slow, heavy, fuzz-drenched riffs into deeply groove-oriented doom metal with a psychedelic undertow.

Sunwrecker is a black/doom drone metal project from Oshkosh, Wisconsin, formed in 2019, conjuring suffocating sonic landscapes that draw equally from the desolation of black metal, the glacial weight of doom, and the trance-inducing repetition of drone.

Superchanger is a doom and stoner metal band from Columbus, Ohio, formed in 2022, crafting heavy, riff-centric music that draws on the low-and-slow traditions of doom and the sun-baked groove of stoner metal.

Supercolony is a doom metal band from Austin, Texas, formed in 2022, operating within the heavy, slow-moving tradition of the genre while contributing to Austin's active and diverse metal scene.

Susurrant Void is a Pittsburgh, Pennsylvania death-doom project formed in 2025, combining the glacial tempos and funereal atmosphere of funeral doom with the harsh, downtuned attack of death metal.

Sutratma is a Santa Barbara, California funeral doom and death metal project formed in 2012, producing lengthy, oppressively slow compositions that dwell in dense atmospheres of grief and decay.