Anxius has thrashed through Budapest's underground since 2017, bringing a restless, high-tension energy that their Latin-derived name promises. Their thrash metal carries the urgency and aggression befitting Hungary's sprawling capital city.

Aorta is a thrash metal and grindcore band from Schwerin, Germany, formed in 2013, combining thrash's speed and precision with grindcore's blast-beat fury from the capital of Mecklenburg-Vorpommern. The band represents the extreme metal underground in northeastern Germany.

Aoryst is a thrash metal band from Osnabruck, Germany, formed in 2024, carrying on the proud tradition of German thrash metal as one of the newest entrants into the scene. The band delivers the genre's characteristic speed and aggression from the Lower Saxony region.

Aoviccan blends folk metal's storytelling with thrash metal's ferocity from Madrid, weaving traditional elements into extreme metal since 2021. Their hybrid approach creates an unusual sonic tapestry that draws from both Spanish folk traditions and modern thrash aggression.

A young thrash/death metal four-piece from the Kolín area, Aparath began writing material in 2023 and gave their first live performance in spring 2025. Their early demos include the tracks Hladomor and Kosa Smrti, signaling a raw, aggressive approach to Czech underground extreme metal.

Aparthate channels pagan and thrash metal from Kyiv since 2015. Their separation-themed name drives over a decade of folk-influenced thrash from the Ukrainian capital.

Apatra delivers death and thrash metal from Moscow since 2017. Their name, possibly derived from the Greek word for deception, drives compositions of duplicitous aggression from the Russian capital.

Aphrenety has evolved from thrash, death, and groove metal into a black and death metal combination from Wolfsburg, the Volkswagen city, since 2021. Their name, suggesting a frenetic loss of reason, drives their Lower Saxony-bred extremity through multiple stylistic phases.

Apocalips delivers melodic thrash metal from Timișoara since 2023. From the Banat capital that triggered Romania's liberation, they forge high-speed melodic aggression.