Wilmington, North Carolina's Sponsel play a hard-driving blend of heavy, power, and speed metal, channeling the high-energy urgency of the classic American metal underground since 2017.

Texas slam and brutal death metal act Spontaneous Curettage formed in 2024, delivering dense, gore-obsessed extremity rooted in the slam subgenre's tradition of pulverizing rhythms and guttural vocals.

Madison, Wisconsin's Sporadic Impulse emerged in 2024 playing slam and brutal death metal, adding another voice to the Midwest's growing extreme metal underground with gut-wrenching heaviness and percussive brutality.

Boise, Idaho's Spore play slam and brutal death metal, emerging in 2019 with a focus on the suffocating grooves and visceral extremity that define the slam subgenre.

Atlanta, Georgia stoner metal outfit Spore Lord have been cultivating heavy, fuzz-laden riffs since 2016, drawing from the psychedelic and doom-adjacent traditions of Southern stoner rock and metal.

Los Angeles progressive death metal and deathcore act Sporemacide formed in 2025, combining the technical ambition of progressive metal with the heaviness of death metal and deathcore.

Brooklyn's Spotlights, the husband-and-wife project of Mario and Sarah Quintero, conjure dense, monolithic atmospheres at the intersection of doom metal, shoegaze, and dreampop, creating what critics have aptly dubbed 'doomgaze.' Signed to Mike Patton's Ipecac Recordings, the band crafts expansive soundscapes where crushing sludge riffs dissolve into ethereal, reverb-drenched beauty. Their ability to be simultaneously heavy and hauntingly beautiful has earned them a devoted following and a stunning tour resume for a band operating at the fringes of multiple genres.

Miami, Florida death metal band Spread the Shadows formed in 2021, operating within the South Florida extreme metal tradition with a straightforward commitment to brutal, unadorned death metal.

Portland, Oregon's Spume have played slam and brutal death metal since 2017, contributing to the Pacific Northwest's extreme metal community with dense, suffocating heaviness and bone-crushing rhythmic assault.