Melodic heavy/power metal band from Vaasa on Finland's Ostrobothnian coast, active since 2018. Their sound channels melodic power metal energy from the bilingual coastal city.

Heavy metal and hard rock band from Ejea de los Caballeros in Aragon, active since 2015. Their sound channels classic metal from the historic medieval town in the Cinco Villas comarca.

Invoice is a heavy/power/speed metal band from Wolfhagen, Germany, formed in 2018, blending the anthemic energy of power metal with the velocity of speed metal and the riff-driven weight of traditional heavy metal. The band delivers a triple-threat approach from the forested hills of northern Hesse.

Involution is a heavy metal band from Bochum, Germany, active since 2014, channeling the spirit of classic European heavy metal through driving riffs and powerful vocals. The band represents the Ruhr's deep heavy metal tradition with over a decade of output.

Inwazja is a heavy/thrash metal band from Bielsko-Biała, Poland, active since 2016 and delivering aggressive, riff-driven thrash with relentless intensity. The project channels the speed and fury of the genre.

Io is a progressive heavy metal band from Leuven, Belgium, formed in 2023, weaving intricate compositional structures through heavy, dynamic arrangements. The band explores ambitious, genre-defying territory where technical musicianship meets expansive songwriting.

Iommi are a doom/heavy metal band from Birmingham, England, formed in 2025. Named after the godfather of heavy metal's hometown, they carry forward Birmingham's rich doom metal tradition.

Iona are a heavy metal band from Pontypool, Wales, rooted in the NWOBHM tradition. They deliver classic British heavy metal from the Welsh valleys.

Ionica are a heavy metal band from Carterton and Oxford, England, formed in 2019. They play traditional heavy metal from the heart of Oxfordshire.