Ajabur is a two-piece black/doom metal band from Dresden, Germany, consisting of S. on guitars and vocals and C. on drums. Their releases, including the 2023 self-titled session EP and the 2025 session album Transmissions, embrace a deliberately raw, lo-fi aesthetic described as relentless and without compromise, with the band donating a portion of their merchandise proceeds to social care organizations.

Led by ex-Amorphis vocalist Pasi Koskinen, Ajattara is a Helsinki black metal sextet named after an evil forest god in Finnish mythology. Across eight albums including "Itse," "Kuolema," and "Lupaus," they've developed a Celtic Frost-influenced sound that fuses synthesizers with crushing guitars, exploring themes of death, evil, and Finnish paganism.

Ajatuska weaves melodic black metal with progressive elements from the Jokela and Järvenpää area since 2020. Their Finnish name and multi-genre approach reflect a project exploring the intersection of melody, complexity, and extreme metal.

Ajdaya practices black metal from the Bryansk Oblast as of 2025. Their name, possibly derived from a Slavic word, connects to the folklore of this western Russian region bordering Ukraine and Belarus.

Karditsa's Akantha channel dark, thorny black metal from the heart of Thessaly, their name (Greek for 'thorn') perfectly capturing the piercing aggression of their sound. Active since 2018, they contribute to central Greece's growing black metal presence.

Akatharton channels black metal from the ancient walled city of Chester since 2017, their Greek name meaning "unclean" adding classical dimensions to their sound. Their Roman-founded city origins create layers of historical resonance.

Akathartos creates black metal and ambient from an undisclosed Russian location since 2021. Their Greek name meaning 'unclean' or 'impure' drives atmospheric compositions that embrace contamination and spiritual pollution.

Akefal is a black and death metal band from Copenhagen, Denmark, formed in 2019, combining the atmospheric intensity of black metal with death metal's guttural force. The band contributes to Copenhagen's diverse and active extreme metal underground.

A cornerstone of Spanish black metal since 1997, Akerbeltz has spent nearly three decades channeling Satanic fury from Lloret de Mar through releases on labels like BlackSeed Productions. From early works like "A Wave of Darkness" through 2022's "Merciless," the project remains one of the Iberian Peninsula's most enduring black metal institutions.