Straight Line Stitch is a Knoxville, Tennessee band formed around 2008 that evolved from nu-metal roots into metalcore, distinguished by the powerful vocals of frontwoman Alexis Brown and a devoted following in the underground metal scene.

New York metalcore band formed in 2024, drawing on the genre's synthesis of hardcore aggression and metal riffing to produce confrontational, high-energy material.

Groove metal and metalcore band from Kennewick, Washington, formed in 2022, blending down-tuned rhythmic aggression with the melodic sensibilities of modern metalcore. Despite sharing a name with the Massachusetts raw black metal act, this band occupies decidedly heavier, groove-driven territory.

Melodic death metal and metalcore band from Hickory, North Carolina, formed in 2011, fusing Scandinavian melodeath guitar work with the rhythmic and vocal intensity of metalcore. Their sound has evolved toward a heavier, more aggressive deathcore-influenced direction over their career.

Atlanta metalcore band formed in 2011, operating in a scene-rich city with a sound rooted in the melodic and aggressive interplay that defines modern metalcore.

Peoria, Illinois metalcore band formed in 2024, contributing to the Midwest's growing metalcore underground with a sound built on heavy breakdowns and melodic tension.

New York hardcore outfit SubZero was formed in 1989 by veterans of the NYHC scene, including members of Breakdown and Up Front, with vocalist Lou di Bella completing the lineup. Their 1996 debut full-length Happiness Without Peace established them as a durable force in the metallic hardcore underground, and the track 'Boxed In' was later covered by Hatebreed on For the Lions. Despite di Bella's battle with acute lymphoblastic leukemia halting the band in the late 1990s, SubZero resumed activity and released The Suffering of Man in 2004.

Such Vengeance is a thrash/metalcore band from Pleasant Grove, Utah, formed in 2009, blending the speed and riff intensity of thrash metal with the heaviness and breakdowns characteristic of metalcore.

Tampa, Florida band formed in 2022 that merges groove metal's heavy mid-paced rhythms with metalcore's post-hardcore dynamics and funk-influenced elements for a varied heavy sound.