Baltimore's Greylotus represent the cutting edge of progressive deathcore, threading technical precision and unusual compositional structures through the genre's crushing heaviness. Since 2022, they've been one of the more ambitious young voices in an increasingly sophisticated scene.

Knoxville's Grimsteel fuse power metal's melodic ambition with progressive metal's structural complexity, crafting songs that move through dynamic shifts without losing the epic quality that makes the genre soar. Since 2019, they've been one of the more musically ambitious acts to emerge from the Tennessee underground.

From the Rio Grande Valley, Guillen push progressive and experimental death metal into uncommonly strange territory — unconventional song structures, challenging rhythms, and a willingness to sacrifice accessibility for artistic vision. Since 2012, they've been one of the most distinctive voices from South Texas.

Taking their name from the cold sea fog that rolls in off the North Sea, Haar is a U.S. black metal project that conjures a similarly bleak and suffocating atmosphere. Active since 2010, they trade in the kind of desolate, windswept darkness that recalls the genre's Scandinavian origins.

Wilmington, North Carolina's Hadea refuses easy classification — their death metal foundation is filtered through progressive songwriting and experimental tendencies that set them apart from more conventional genre practitioners. Since 2014, they've been one of the more intellectually restless acts in the Southeast.

New Bedford, Massachusetts's Hadean builds sprawling, emotionally heavy music at the intersection of progressive and post-metal, where texture and dynamics matter as much as riffs. Active since 2014, they bring the bleak coastal atmosphere of the South Coast into their expansive compositions.

Named for the Chinese sea god, Rochester's Haishen bring a progressive metal sensibility to upstate New York since 2020. Technically ambitious and melodically adventurous, they favor complexity over brute force.

Technical Progressive / Groove Metal from Lewisville.

Sarasota's Half Ton Hammer fuse progressive metal's structural ambition with groove metal's visceral punch, resulting in something heavier and more dynamic than either genre alone. Florida has a long tradition of heavy music, and these guys fit right in.