Atomic Dog plays heavy metal and hard rock from Oulu since 2013. From the northern Finnish city known for its air guitar championships, they channel canine ferocity through classic-leaning metal and rock.

Atomiko channels heavy metal energy from Barcelona since 2021, bringing explosive intensity to Catalonia's densely populated metal underground. Their atomic-themed approach suggests a band intent on maximum impact.

Newcastle's Atomkraft were pioneers of the NWOBHM and speed metal movements, delivering blistering heavy metal with a raw, uncompromising edge since reforming in 2015. Their name ('nuclear power' in German) reflects the explosive energy of their sound, which bridges the gap between classic heavy metal and early thrash.

Patras' Atrophic deliver muscular power metal infused with heavy metal grit, crafting anthemic songs built on driving rhythms and powerful vocals. Since 2009, they've been a reliable force in the Peloponnesian metal scene.

St. Helens' Attache revive the spirit of NWOBHM with twin guitar harmonies, galloping rhythms, and soaring vocal melodies that honour the movement's golden era. Since 2016, they've carried the torch for classic British heavy metal with authenticity and passion.

Glasgow's Attica Rage built a formidable reputation across four critically acclaimed albums and extensive touring with the likes of Judas Priest, Slash, and Anthrax. Founded by brothers Richie Rage and Jonny Parr, they evolved from their thrash roots into a powerhouse of modern British heavy metal before disbanding in 2018.

Attick Demons has delivered heavy and power metal from Almada across the Tagus from Lisbon since 2011. Their attic-dwelling demonic imagery drives over a decade of energetic, classic-styled metal from the southern bank of the estuary.

Attila Heller creates symphonic and heavy metal from Belgrade since 2023. Named for a Hungarian historical figure, they bring Central European grandeur to orchestrally enhanced metal from the Serbian capital.

Attis plays heavy metal from Reșița in the Caraș-Severin mountains since 2016. Named after the Phrygian vegetation deity, they bring ancient Anatolian mythology to classic metal from this steel-industry town in the western Carpathians.