Chaos Ritual is a groove and thrash metal band from Cincinnati, Ohio that formed on the city's east side and quickly built a local following, opening for national acts including Soulfly, Geoff Tate, and Sanctuary. The band later continued under the name Critical Khaos.

Chaos Theory is a groove metal and hardcore band from Bordentown, New Jersey that formed in the mid-1990s and was part of the state's robust metallic hardcore scene during that era. The band drew on the collision of groove metal heaviness and hardcore intensity that defined much of the New Jersey underground at the time.

Corbin, Kentucky's Charming Demons blend groove metal's mid-tempo chug with straightforward heavy metal hooks, producing a sound well-suited to the bar stages of rural Appalachia. Their no-nonsense approach prioritizes impact over complexity.

Indiana's Charybdis forge a hybrid of death metal, groove, and hardcore that refuses easy categorization, with the visceral directness of punk bleeding into extreme metal's more crushing textures. Their sound has a blunt, functional brutality that suits the unpretentious character of the Midwestern underground.

Chicago's Chasm blends groove and thrash metal with the grit and working-class stoicism that defines the city's heavy music tradition. Their mid-tempo riffs carry a weighty authority that suits the industrial character of the Midwest's metal backbone.

Dearborn's Chaz Hook blends progressive metal's compositional ambition with groove and death metal's heavier instincts, reflecting Michigan's history of producing technically serious musicians willing to move between extremes. Their work rewards listeners with an ear for both complexity and outright heaviness.

Los Angeles groove and thrash act Chemical Burn built their sound on a foundation of thick, mid-paced riffs and neck-snapping rhythmic momentum. Their music carries the hard-edged influence of both Bay Area thrash and early groove metal.

Cleveland's Chimaira was one of the defining acts of the early 2000s heavy music scene, bridging the gap between metalcore, groove, and nu-metal with a raw ferocity that earned them a devoted following. Albums like 'Pass Out of Existence' and 'The Impossibility of Reason' cemented their place in the era's canon.

Tampa's Chiroptera mines the fertile ground between groove metal and metalcore, bringing the Florida city's heavy music heritage into a modern, percussive framework. Their music is kinetic and punchy, built for movement and impact in the live setting.