Mathrus is a experimental death/thrash/black metal band from Ryazan, Russia, formed in 2021. They forge extreme metal at the fierce intersection of black and death metal.

Brainlust is a deathcore and death metal act from Budapest, active since 2009. The band delivers breakdown-heavy brutality from the Hungarian capital's diverse extreme metal scene.

A thrash metal act from the Lincolnshire town of Stamford, Matricyde has been delivering aggressive thrash since 2020. The band brings high-speed metal aggression to the east Midlands underground.

A thrash metal act from Trondheim, Matwrak has been delivering aggressive compositions since 2020. The band channels the city's extreme metal heritage into ripping thrash.

Mauled is a death/thrash metal and crust punk act from Naples, formed in 2025. The band merges the aggression of extreme metal with the raw energy of crust punk from southern Italy's chaotic capital.

Mauser fires off thrash and heavy metal from the Andalusian town of Morón de la Frontera, blending Teutonic-style riffing with the raw energy of Spanish underground metal. Active since 2019, the band channels their namesake firearm's precision into tight, aggressive compositions.

Mausoleum were a heavy/thrash metal band from Waidhofen an der Ybbs in Lower Austria, active from 1993 until splitting up in the late 1990s. The band worked independently and had a full-length album planned for autumn 1997, though it was never completed. Their brief run placed them among a generation of rural Lower Austrian bands working within the European thrash and heavy metal tradition.

Mayak is a Bielefeld, Germany-based band self-described as playing "sludgy black metalpunkblabla," blending black metal, sludge, stoner rock, and punk into a volatile crossover. Their discography spans from the 2012 self-titled EP through 2018's "Trenches" LP, released on vinyl through Twisted Chords.

Mayzel is a thrash/death metal band from Katowice, Poland, formed in 2015. They forge aggressive extreme metal at the crossroads of death and thrash.