Aiwaz is a gothic doom metal band from Dortmund, Germany, formed in 2017, drawing on dark, melancholic heaviness with gothic overtones. The band explores themes of shadow and mysticism within the framework of slow, crushing doom metal.

Aizz is a heavy metal band from the Idstein and Hunstetten area of Germany, formed in 2024. As a recent entry into the German heavy metal scene, the band is in its early stages of building a discography.

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.

Ajatus creates death metal from Gothenburg since 2016. Their Finnish name meaning 'thought' brings cross-Scandinavian linguistic depth to death metal from the Gothenburg scene.

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.

Akant has evolved from hardcore into thrash metal from Púchov in the Považie region since 2018. Their plant-genus name — the acanthus — brings botanical Greek heritage to compositions from this small Váh River town.

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.