Allston, Massachusetts is an unlikely home for a stoner metal band, but Hackman has made it work since 2011, fusing the genre's hazy, riff-heavy grooves with the Boston area's characteristically no-nonsense underground ethos.

Northampton, Pennsylvania's Hackpeter mashes death metal's surgical brutality against grindcore's frantic brevity, producing a sound that's equal parts calculated and chaotic since their 2019 formation.

Portland's Hacksaw brings a grind-splattered death metal sound to the Pacific Northwest underground, their jagged attack and economical song structures marking them as a product of the city's adventurous extreme scene since 2016.

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.

Milwaukee's Hadak Ura operates in the atmospheric and ambient reaches of black metal, filling the space between songs with texture and dread. Since 2015, they've built a sound more interested in suffocating atmosphere than outright aggression.

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.

Portland, Oregon's Hadean works in the slow, oppressive territory between doom and heavy metal, their sound as grey and overcast as the Pacific Northwest sky above their city. Formed in 2014, they lean into the weight.