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.

Pleasant Hill, California's Concealed meld groove metal's mid-tempo swagger with nu metal's heavy atmosphere and occasional thrash bite, landing in the aggressive pocket of late-90s Bay Area heaviness.

Minneapolis-based Cromlech straddle the boundary between death metal, thrash, and nu metal, reflecting the diverse influences of the Minnesota heavy music scene in the late 90s and early 2000s.