Yonkers, New York death/thrash outfit Trez Muertoz formed in 2025, bringing a fresh entry to the brutal overlap between the two styles with a name that wears its grimy aesthetics on its sleeve. As one of the newer acts in the New York extreme metal underground, they carry the confrontational energy the city's scene demands.

Trial by Combat is a death/thrash metal band from Santa Rosa, California, formed in 2013, delivering punishing riffs and aggressive tempos rooted in the Bay Area's extreme metal tradition.

Trial by Fire is a progressive/power metal band from Red Bluff, California, formed in 2019, blending soaring melodic vocals and complex song structures within the classic power metal framework.

Trials is a Chicago, Illinois band formed in 2011 that fuses groove and thrash metal with metalcore intensity, earning a reputation in the city's heavy underground scene for their technically precise and relentlessly energetic sound.

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Tribunal is a thrash/power metal band from Baltimore, Maryland, formed in 2013, combining the precision and aggression of thrash with the melodic ambition of power metal in the tradition of East Coast heavy metal.

Tribus is a metal band from Gallup, New Mexico, formed in 2025, whose history spans industrial metal in their early period before shifting toward a thrash-oriented sound.

Triguna is a Chicago, Illinois band formed in 2015 that began in death/thrash metal before evolving toward a more progressive death metal sound, reflecting the city's adventurous extreme metal underground.

Trihexyn is a heavy/power/thrash metal band from Gaithersburg, Maryland, formed in 2009, drawing equally from traditional heavy metal, melodic power metal, and thrash aggression.