M.A.C. of Mad is a Prague-based industrial metal act combining hellish female vocals, frantic beats, and brute guitar riffs into a raw digital hardcore assault. Their punk-attitude approach to industrial extremity, heard on releases like "Keep Music Evil," prioritizes abrasive intensity over polish.

Mad Brains is a death and groove metal band from Agrigento, Italy, formed in 2022, incorporating industrial elements. They blend death-groove metal with mechanical industrial textures from Sicily.

Makina is an industrial metal band from Madrid, Spain, formed in 2015. They forge a mechanized sound blending industrial textures with heavy metal aggression.

Maledia is a band from Rome, Italy, active since 2006, having evolved from gothic metal into alternative and industrial rock and metal. Their creative evolution spans two decades of dark musical exploration.

Malignant Eternal is a black metal (early); black metal/industrial (later) band from Bergen/Rosendal, Norway, formed in 1997. They deliver dark, uncompromising black metal from the Norway underground.

Malvento is a band from Naples, Italy, active since 1999, having evolved from black and thrash metal into black and industrial metal. Their creative arc spans nearly three decades of dark Italian extreme metal.

Mammutant is an industrial/death metal band from Fürth, Germany, active since 2017. Their sound fuses the mechanized rhythms and electronic textures of industrial metal with death metal's organic brutality, creating a hybrid assault from the Franconian Mittelfranken region.

Manntra formed in Umag, Croatia in 2011 when former members of industrial metal band Omega Lithium established a new project rooted in the collision of traditional Croatian folk music with heavy metal and electronic production. The band incorporates indigenous instruments such as the sopele, tamburica, and diple alongside electric guitars and programmed elements, singing in Croatian. Their album War of the Heathens (2023) reached number 43 on the German charts, making Manntra the first Croatian band to appear on the German Billboard, and they subsequently signed to Napalm Records for their eighth album Titans (2025).

Mantas is a band from Newcastle upon Tyne, England, formed in 2012, having evolved from heavy metal and AOR into industrial groove metal and hardcore. Their creative arc traces a dramatic shift from melodic metal to crushing industrial heaviness.