Los Angeles' Temple of Dagon have been conjuring death/thrash savagery since 2014, fusing the crust punk grit of the California underground with the skull-splitting attack of old-school death and thrash. Their Lovecraftian namesake suits music this primordial — filthy, fast, and hostile, built on riffs that feel dredged from somewhere beneath the ocean floor.

Los Angeles grindcore band Terrorizer formed in 1986 around vocalist Oscar Garcia, guitarist Jesse Pintado, and drummer Pete Sandoval, recording their sole classic lineup album World Downfall in 1989 for Earache Records with Morbid Angel's David Vincent producing and playing bass. The album has since been recognized as a foundational text of grindcore, and the band briefly dissolved after Pintado joined Napalm Death and Sandoval returned to Morbid Angel. A reformed lineup released Darker Days Ahead in 2006, though the original lineup never reconvened.

Oakland's Thanatopsis carry a storied name — the 19th-century poem meditating on death — into a death/thrash sound that has evolved from progressive roots toward leaner, more aggressive territory since forming in 2020. The Bay Area's tradition of technically proficient thrash and death metal runs through their DNA, updated with the sharp-edged intensity of Oakland's current underground.

Oakland's Thane have been cultivating their death/doom sound since 2015, drawing on the Bay Area's tradition of heavy, serious metal and steering it into the slower, more oppressive corridors of the genre hybrid. Their music shares the grinding patience of classic death-doom — long songs, cavernous production, and a heaviness that accumulates with deliberate intent.

The Haunting Presence emerged from California in 2012 as a project straddling the jagged boundary between black and death metal, pursuing a sound that is at once cavernous and suffocating. Their approach leans into the murky, atmosphere-heavy end of death/black fusion — dense, dissonant, and deliberately unsettling. It's music that sounds like it was dragged up from somewhere dark and left just barely intact.

Corona, California melodic death metal solo project by A.C. Riddle, formed in 2013 and notable for a prolific early run that produced four albums in under two years across releases like The Dark Realms and Makeria. Norse mythological themes anchor the lyrical content, and the project draws on the melodic death metal tradition with layered guitar work and dense sonic arrangements released through Senseless Life Records.

Santa Cruz's The Sun Must Die channel death-doom's most oppressive impulses — slow, tar-thick riffs laid over cavernous death metal vocals — into a sound that feels as though the California coastline has been swallowed by darkness. Formed in 2015, the project leans into the nihilistic end of the doom-death spectrum.

San Francisco's The Undying fuse symphonic orchestration with technical death metal brutality and deathcore breakdowns, a combination that has driven their sound since forming in 2011. Their music is uncompromising in its ambition, stacking complexity and cinematic scale into the same passages.

Bay Area melodic death and thrash metal act The Urchin Barren have been honing a sound built on twin-guitar interplay and relentless rhythmic propulsion since 2014. They fit naturally within the Northern California tradition of technically sharp, riff-forward extreme metal.