Minneapolis death/thrash act Climactic deliver straight-ahead extreme metal with an emphasis on aggression and momentum, rooted in the Twin Cities underground. Their material is lean and unpretentious, aimed squarely at fans of classic extreme metal crossover.

Aurora, IL death/thrash act Clocktower bring a hard-hitting, no-nonsense approach to classic extreme metal, rooted in the long tradition of Chicago-area underground metal. Their music is tight, aggressive, and built around the kind of riff-forward songwriting that defined American thrash and death in their early years.

A progressive metal outfit from the Philadelphia suburb of Broomall, Pennsylvania, Clockwork blended symphonic prog complexity with technical metal muscle, drawing comparisons to Yes and Dream Theater. Their lone album Surface Tension showcased lush keyboards, intricate rhythms, and soaring guitar melodies.

A Flint, Michigan act working across melodic death metal, thrash, and straight death metal, Clovis bring a midwest blue-collar grit to their extreme metal sound. Their approach draws on the long lineage of Michigan's underground metal heritage.

Seaside, California's Clownhouse blend death metal heaviness with thrash metal's velocity into a raw, aggressive attack. Their work fits naturally within the broader California tradition of uncompromising underground metal.

Denver's Clusterfux have been the Mile High City's crossover thrash standard-bearers since 1995, combining hardcore punk's aggression with thrash metal riffs into a relentless, politically charged attack. Active again since 2017 and signed to Beer City Records, their latest album Defy keeps the fury very much alive.

Oakland, California thrash and heavy metal band Cobweb pull from the Bay Area's legendary thrash tradition while keeping one foot in classic metal territory. Their music has the gritty, street-level intensity that Oakland's underground is known for.

Queens, New York groove and thrash metal band Code 6 bring the aggressive, street-hardened edge of New York City metal to tightly wound groove and thrash riffs. They reflect the borough's long history of tough, no-frills heavy music.

Burlington, Vermont thrash metal band Code Black represent the Green Mountain State's scrappy underground with direct, high-energy riffing and a no-compromise approach. Vermont's small but passionate metal scene has room for exactly this kind of pit-ready thrash.