Treibstoff is a groove/thrash metal band from Dortmund, Germany, formed in 2020. Their name meaning "fuel," they deliver high-octane groove and thrash metal.

Trepalium formed in Boismé, France in 2001, developing a death metal style inflected with groove, progressive structures, and jazz and blues elements that placed them within the eclectic wing of the French extreme metal scene. Their debut Through the Absurd (2004) was produced by Joe Duplantier of Gojira, establishing a connection to the broader French extreme metal network sometimes referred to as the Konosphere. Alchemik Clockwork of Disorder (2006) and XIII (2009) followed, each leaning further into the band's genre-blending approach. Trepalium remained active through 2024, over two decades of consistently unconventional extreme metal.

Trevider is a groove/thrash/death metal/crossover band from Cabana, Spain, active since 2008. They merge groove, thrash, and death metal with crossover energy from rural Galicia.

Triglöth from Annemasse near the Swiss border deliver stoner and groove metal with the three-headed, mythological menace their name suggests since 2023. Their Haute-Savoie base at the foot of the Alps provides mountain-weight backing for their fuzz-driven grooves.

Triotic from Germany blend groove metal's rhythmic punch with metalcore's dynamic intensity, creating a three-part musical vision suggested by their name since 2008. Nearly two decades of activity have refined their approach to heavy, groove-driven metal.

Truth of Heresy is a groove/thrash metal band from Macclesfield, England, formed in 2024. They deliver hard-hitting, riff-driven metal that merges thrash aggression with heavyweight groove.

Trÿpta is a groove and sludge metal band from Bristol, England, formed in 2014. They combine crushing sludge weight with punchy groove metal rhythms, delivering a thick, aggressive sound.

Tusken from Aix-en-Provence deliver sludge, groove metal, and post-hardcore named after the Sand People of Star Wars since 2014. A decade of Tatooine-inspired compositions from Cézanne's sun-baked Provençal hometown has channeled desert aggression through a southern French filter.

Mettmann's Tyrant's Curse blend heavy, power, and groove metal from the Rhine-Ruhr region since 2021. Their triple-genre approach creates a versatile sound that shifts between melodic grandeur, anthemic power, and rhythmic heaviness.