California's Sadisme has operated since 2018 in the unforgiving terrain of raw black metal, building a catalog defined by primitive production and an unwillingness to soften any edge. The project strips the genre down to its most confrontational elements — hissing tape noise, venomous riffs, and an atmosphere of pure contempt.

Los Angeles's Satani Infernalis have operated in the raw black metal underground since 2016, a project that deliberately resists the city's association with polished production in favor of primitive, corroded sound design. Their music treats lo-fi aesthetics as an ideological position — raw black metal as it was always meant to be heard, unmediated and contemptuous of commercial refinement.

Out of Long Beach, California, Satanófator deal in the grinding intersection of black and death metal — corrosive riffwork, blasting percussion, and a caustic, feral energy that owes as much to South American war metal as it does to the US underground. Formed in 2018, they carry the genre's most nihilistic traditions with conviction.

Formed in California in 2019, Seas of Winter channels the cold, atmospheric fury of black metal into a solo project that feels both intimate and vast. The project leans into the bleakness the name implies — glacial tremolo lines, suffocating atmosphere, and a rawness that puts sonic texture ahead of accessibility. It's the kind of black metal that rewards patience and solitude.

Los Angeles's Sebek — named for the ancient Egyptian crocodile deity — forge a blackened thrash attack that's as feral and aggressive as their namesake. Active since 2015, the band channels the raw, speed-obsessed chaos of early black/thrash into something that feels genuinely dangerous rather than merely nostalgic. Their LA origins ground them in a city with deep extreme metal roots, and they honor that lineage without sounding derivative.

Fresh out of Huntington Beach, California, Secularis arrived in 2025 as one of the newest entries in the American black/death underground, combining the icy hostility of black metal with the visceral attack of death metal. Even at this early stage, the project signals a willingness to operate in the extremes where both genres converge most violently.

San Diego's Sergulath fuse orchestral grandeur with the raw edge of black and thrash metal, building a symphonic black/thrash sound that sets them apart in Southern California's scene since their 2018 formation.

Los Angeles-based Servile Conceptions blend blackened ferocity with death metal's brutality, threading cold, dissonant tremolo lines through a foundation of aggressive, mid-paced heaviness. Active since 2013, they occupy the dark and confrontational space where LA's underground extreme metal scene intersects with the philosophical blackness of the genre's European roots.

Santa Barbara, California's Seventh Circle occupy a darkly syncretic extreme metal space, weaving together the bleakness of black metal, the heaviness of death metal, and the grinding weight of doom into a single suffocating whole. Active since 2008, they've developed a reputation for uncompromising, multi-dimensional heaviness that refuses easy categorization.