Florida's Hacksaw pursues the brutal death metal path with the blunt efficiency the state's scene is notorious for, formed in 2016 and carrying on the Sunshine State's rich tradition of extremity.

Columbus, Ohio's Hadak Ura is one of the more unorthodox acts to emerge from the Midwest's extreme metal scene — a grinding black metal project that fuses the frozen hatred of black metal with the frenetic velocity of grindcore since 2015.

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.

New Jersey's Hades has one of the longer journeys in underground U.S. metal — from power and heavy metal roots to a full thrash conversion, the Paramus band traces a lineage back to the early days of East Coast extremity while remaining active through the present.

Seattle's Hades Bellum brings a merciless black/death metal hybrid to the Pacific Northwest underground, with a name that invokes the god of the underworld alongside the Latin word for war. Founded in 2024, they're one of the newer and more aggressive acts to emerge from the city's extreme scene.

San Diego's Hadoth deals in atmospheric black metal that prioritizes enveloping darkness over sheer violence — sweeping, textured, and deliberately cold. Formed in 2024, they're a recent addition to Southern California's contemplative black metal scene.

Milwaukee's Haelm is one of the longer-running black metal acts in Wisconsin, active since 2008 and a fixture of the region's underground. Their longevity alone speaks to a dedication to the form that outlasts most contemporaries.

Out of Harrisonburg, Virginia, Haetriarchy carves out a black/death metal sound in the heart of the Shenandoah Valley since 2019 — one of the more geographically isolated extreme metal acts in the mid-Atlantic region, which perhaps explains the ferocity.