Aegrotum is a two-piece black metal band from Hesse, Germany, founded in 2007 by Antares and Samuel, who recorded three demos before releasing the full-length Pilgrim to Total Negation in 2014. Their 2012 compilation Hostimentum, limited to 100 copies through Sturmglanz, collects their early demo material into a document of the project's evolution from raw beginnings to refined misanthropy.

Aegrotus is an anonymous Finnish raw black metal project active since 2017, embracing the lo-fi hostility and obscured identity that define the genre's most uncompromising wing. Their Latin name, meaning "sick" or "diseased," reflects the pestilent nature of their sound.

Aegult channels raw black metal from Manchester since 2021, embracing the lo-fi hostility that defines the genre's most uncompromising wing. Their stripped-down approach draws darkness from one of England's most industrial cities.

Aehrebelsethe is a one-man pagan black metal project from the Basque Country, created by Akerbelex, who handles all instruments and vocals. The 2018 debut EP Gauaren Semeak, recorded during Samhain 2017 and limited to one hundred CDs, features lyrics in Euskera and draws on Basque mythology and cultural identity through raw pagan black metal.

AEiOU is a black metal project from Chemnitz, Germany, formed in 2021, exploring the genre's capacity for atmospheric darkness from the former Karl-Marx-Stadt in Saxony. The project adds to Chemnitz's growing reputation as a breeding ground for underground extreme metal in eastern Germany.

Thessaloniki's Aelveryth emerged in 2025 with atmospheric black metal of ethereal beauty, layering shimmering tremolo melodies over blast beats and ambient textures. Their elven-sounding name reflects a mystical, fantasy-inspired approach to atmospheric extremity.

Ioannina's Aenaon are one of Greece's most adventurous extreme metal acts, fusing progressive and avant-garde sensibilities with black metal intensity on acclaimed albums for Code666 and Agonia Records. Their sound draws from influences as diverse as Solefald, Enslaved, and Dodheimsgard, resulting in a cerebral, shape-shifting approach that has earned them international recognition.

Aendsnigh blends black, sludge, and doom metal from Kotlje in the Mežica Valley as of 2026. From this tiny mountain village in the Karavanke Alps of northern Slovenia, they forge multi-genre extremity in extreme geographic isolation.

Aenfrz channels raw depressive black metal and dark ambient from Chernivtsi in western Ukraine since 2019. Their consonant-heavy, vowel-stripped name mirrors the airless, suffocating quality of their Bukovinian DSBM.