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.

Hard-hitting Groove Metal / Metalcore from Dallas.

Summers End is a melodic metalcore band from Bowie, Maryland, formed in 2012, combining aggressive metalcore structures with melodic hooks and emotional lyrical themes.

Suncrusher is a Chicago, Illinois groove metal and metalcore band formed in 2017, built on heavy mid-tempo riffs and melodic sensibilities that bridge the aggression of metalcore with groove metal's rhythmic punch.

Formed in Atlanta, Georgia in 2023, Sunmancer blend melodic death metal with metalcore in a style that pairs melodic guitar work and aggressive rhythmic chug, reflecting the active underground extreme metal scene of the American South.

Suppressed Intentions is a San Luis Obispo, California band formed in 2022, fusing metalcore aggression with groove and thrash metal to produce a hybrid sound rooted in the Central Coast's emerging heavy music scene.