Trivium is one of the most prominent American metal acts of the 2000s, formed in Orlando, Florida, known for bridging metalcore, thrash, and heavy metal across a commercially successful and critically recognized discography that includes albums such as Ascendancy, Shogun, and The Sin and the Sentence.

True Illusion is a Hutchinson, Kansas band formed in 2020 that blends melodic groove metal, thrash, and metalcore influences into a driving, riff-centered sound.

Atlanta, Georgia act formed in 2020, fusing black metal's corrosive tremolo assault with the confrontational aggression of hardcore punk — a combination central to the blackened hardcore movement gaining traction in the American underground.

Twenty Thousand Fathoms is a progressive metalcore band from Erie, Pennsylvania, formed in 2020, drawing its name from Jules Verne's ocean depths and crafting expansive, technically adventurous music that pushes the boundaries of metalcore.

Twitching Tongues is a Los Angeles band formed in 2013 operating at the intersection of doom metal, metalcore, and alternative metal, known for incorporating dark, cinematic atmospheres and melodic rock dynamics into what began as a hardcore-adjacent sound.

Two Minutes Hate is a metalcore band from Tulsa, Oklahoma, formed in 2022, bringing the genre's blend of hardcore aggression and melodic metal to the midwestern underground scene.

Tyraels Ascension is an Olympia, Washington band formed in 2024 that merges melodic death metal, groove metal, and metalcore, drawing on multiple extreme and modern metal subgenres to build a hybrid aggressive sound.