Acid Phase plays heavy metal from Lubań in Lower Silesia, with origins dating remarkably to 1964 — making them one of the oldest metal-associated acts in Poland. Their extraordinary longevity from this small town near the Czech and German borders is unmatched in the Polish metal landscape.

Acido is a heavy metal band from Madrid, Spain, formed in 2020, whose Spanish name meaning 'acid' hints at a corrosive, no-holds-barred approach to heavy metal. The band operates from Spain's capital city, one of the Iberian Peninsula's most active metal centers.

Acies are a heavy metal band from Göppingen, Germany, active since 2017, with releases including Seenot and Space that explore diverse sonic territory within the traditional metal framework. Based in the Staufer region of Baden-Württemberg, they bring a disciplined approach to their craft.

Acrimonia wields heavy and speed metal from Foggia in the Puglia flatlands since 2015. Their Latin-derived name meaning 'harshness' captures the biting edge they bring from this Adriatic-adjacent agricultural city.

Acrophobia plays heavy and thrash metal from Genoa, the Ligurian port city, since 2017. Named after the fear of heights — ironic for a city built on steep hillsides — their sound pairs the classic twin attacks of heavy and thrash metal with Mediterranean intensity.

Acrum plays heavy metal from Władysławowo on the tip of the Hel Peninsula in Pomerania since 2021. From this Baltic seaside resort at Poland's northernmost point, they forge classic heavy metal with a salt-air edge.

Acts of Vengeance brings heavy metal and thrash from Hertfordshire since 2024, their retaliatory name capturing the aggressive energy of their dual-genre assault. The project represents the newest wave of traditional metal from the Home Counties.

Actual plays heavy metal from Prievidza in the Upper Nitra since 2021. Their direct, unpretentious name drives classic heavy metal from this central Slovak mining-district city.

Adamantine forges heavy, power, and speed metal from Bonn, the former West German capital, since 2010. Named after the mythical unbreakable substance, their Rhine-based approach layers the strength of three classic metal styles.