Martinsville, Virginia's Shadows Within have been blending groove metal's rhythmic stomp with metalcore's intensity since 2011, carving out a sound rooted in the Southern region's blue-collar hard rock tradition. Their approach leans on heavy, mid-tempo riffing anchored by metalcore dynamics and a songwriting sensibility honed over more than a decade of regional activity.

A new entry from Salt Lake City's heavy music scene, Shadowspire launched in 2024 merging the brutality of death metal with the chugging structures of metalcore. Still in their early days, the band represents a wave of younger Utah acts pushing against the state's underground metal limits.

Emerging from Asbury Park, New Jersey in 2024, Shattered Realm grafts metalcore's intense breakdowns and melodic hooks onto a foundation of death metal brutality.

Cleveland, Ohio death metal unit formed in 2013, drawing from the Midwest's blue-collar underground to deliver punishing, no-frills death metal steeped in the tradition of the genre's American roots.

South Texas metalcore/thrash with interconnected members from Upon a Burning Body.

Oshkosh, Wisconsin's Shield the Survivors play mid-heavy metalcore with an earnest intensity, contributing to the Midwest's steady underground metalcore scene since their formation in 2012.

Florida-based metalcore act Shovelhead have been grinding since 2013, delivering the aggressive riff-and-breakdown formula of the genre with a regional hardness that reflects the state's densely competitive heavy music circuit.

Merrick, New York's Shredded bridge heavy metal and metalcore, the Long Island outfit drawing on both the traditional metal riffing of their region and the modern extremity of metalcore to carve out a hybrid sound since 2018.

Palm Springs, California's Shrine of Resurrection, formed in 2021, pursue progressive death metal filtered through metalcore's structural sensibility — ambitious compositions that balance technical complexity with the direct aggression of the modern heavy underground.