Oxnard, California's Kermz specialize in the most physically punishing end of the death metal spectrum — slam-heavy and brutal, with song structures built to maximize impact and bodily devastation since 2014.

San Jose, California's Kevel have been in the heavy fuzz game since 2014, pairing stoner rock's psychedelic warmth with doom metal's glacial pace for a sound that's hazy, heavy, and fully hypnotic.

Fullerton, California's Kilimanjaro plant their flag firmly in traditional heavy metal, delivering riff-forward songs steeped in the genre's classic vocabulary. Active since 2010, they favor hooks and power over gimmick.

The Los Angeles incarnation of Killen brings progressive ambition to heavy metal's classic framework, shaping songs that stretch beyond the four-four convention without losing the genre's essential punch.

Los Angeles groove metal act Killing 4 have been working the pummeling mid-tempo pocket since 2015, building songs around the locked-in rhythmic chemistry that makes groove metal satisfying. Heavy, methodical, and rooted in the LA metal scene.

Los Angeles' King Need emerged in 2021 with a sound built on the slow grind of sludge and the hazed-out weight of stoner metal, fitting naturally into LA's tradition of downtuned heavy rock. Unhurried, thick, and deliberately oppressive.

Drawing equally from doom and traditional heavy metal, Los Angeles' King Raven have been crafting dark, riff-driven songs since 2014. Their sound carries a gothic weight without fully surrendering to doom's slowest tempos.

King Woman is the San Francisco project of vocalist and songwriter Kristina Esfandiari, originally conceived as a solo endeavor around 2009 and later expanded into a full band. Their 2017 Relapse Records debut Created in the Image of Suffering, preceded by the 2015 EP Doubt on The Flenser, merged crushing doom metal with the hazy textures of shoegaze, drawing critical comparisons to Swans and Chelsea Wolfe. The follow-up, Celestial Blues (2021, Relapse), deepened the band's exploration of trauma, religious disillusionment, and atmospheric weight.

Kingdom of Giants make modern metalcore that favors motion, atmosphere, and emotional scale as much as blunt force. Earlier albums such as Every Wave of Sound, Ground Culture, and All the Hell You've Got to Spare established a foundation of screamed vocals, melodic guitar lines, and post-hardcore urgency, while Passenger refined the band into a more spacious and cinematic version of itself. Dana Willax's harsh vocals give the songs their pressure point, but the clean hooks, electronic programming, and open guitar passages are just as important to the identity. Their writing often feels like a series of forward pushes: tight verses, glowing synth textures, wide choruses, and sudden breakdowns that pull the songs back to the floor. The heavier sections are measured rather than chaotic, leaving room for atmosphere to build before impact. Kingdom of Giants fit into the same modern metalcore lane as bands that treat ambience and melody as structural pieces, not decoration. Their best work turns conflict into movement, using contrast to make both the melodic peaks and the breakdowns feel earned.