aTeofania creates death, black, and doom metal from Taranto in Puglia since 2019. Named after the Greek concept of divine manifestation (theophany), they pursue revelation through the combined weight of three extreme metal subgenres.

Ater Era channels black metal from Slovene Istria since 2011. Their Latin name meaning 'black era' drives fifteen years of compositions from Slovenia's Mediterranean coastal strip.

Aterna is a melodic death and power metal band from Stuttgart, Germany, formed in 2014, featuring an international lineup including vocalist Ruben Picazo and vocalist Debora Blanco alongside Achokarlos Garcia on guitars, Daniel Molina Carabia on drums, and Luis Varo on bass. Their 2014 EP The Way to Live Again is the second part of a trilogy about two alchemists searching for the path to resurrection, blending conceptual storytelling with melodic extreme metal.

Athabas channels doom and stoner metal from the Bourgogne-Franche-Comté region since 2016, their name evoking the indigenous peoples of subarctic North America. Their heavy, psychedelic approach draws from the region's wine country traditions of patience and fermentation.

Athanasy creates death and doom metal from Lisbon since 2022. Their Greek-derived name meaning 'immortality' drives compositions that explore the weight of endless existence through crushing dual-genre heaviness.

AthanaTheos delivers death metal from Nantes since 2012, their Greek-theological name meaning "immortal god" adding a divine dimension to their mortal brutality. Over a decade of activity reflects sustained commitment within the Loire-Atlantique underground.

A death metal band from Brno documented on Metal Archives, Athanor represent the South Moravian underground extreme metal scene. Their Bandcamp URL resolves to a French metal act of the same name, and specific release details for the Czech band were not verifiable through available sources.

Athanorr crafts melodic power and thrash metal from an undisclosed Luxembourgish location since 2008. Named after the alchemical furnace, they forge compositions that blend melodic ambition with thrash aggression from the tiny Grand Duchy.

Athar Aghanon channels black metal from Oslo since 2021. Their name, drawing from multiple ancient linguistic traditions, adds scholarly mysticism to their Norwegian black metal.