Insane Breed is a groove metal band from Moscow, Russia, active since 2015 and delivering heavy, rhythmic riffage with crushing mid-tempo intensity. The project channels the headbanging immediacy of groove metal.

Insane Court is a thrash/death/groove metal band from Thessaloniki, Greece, active since 2006 and merging death metal's heaviness with thrash's relentless velocity. The project delivers aggressive crossover fury.

Progressive heavy/groove metal band from the Community of Madrid, active since 2016. Their sound blends progressive structures with heavy and groove metal from the Madrid metropolitan area.

Insomnia Creep is a melodic death/groove metal band from Reggio di Calabria, Italy, active since 2011 and blending melodic harmonies with death metal aggression. The project channels the twin-guitar traditions of Scandinavian-influenced melodeath.

Groove metal band from Bermeo on the Basque coast, active since 2017. Their sound channels rhythmic, riff-driven heaviness from the fishing town on the Bay of Biscay.

InstinctHate are a groove and thrash metal band from Imst in the Tyrolean Alps of Austria, channeling the Pantera-descended groove metal tradition through tight riffing and an aggressive posture. The band self-releases material through their Bandcamp page as an independent act in the Austrian underground.

Intact is a groove metal band from Tallinn, Estonia, active since 2011, delivering thick, rhythmic heaviness from the Baltic capital. Over a decade, the band has become a fixture of Estonia's growing heavy music scene.

Interlock are an industrial/groove metal band from London, formed in 2021. They fuse industrial textures with groove-laden heaviness.

Internal Perdition is a progressive groove/thrash metal band from Poznań / Murowana Goślina, Poland, active since 2012 and blending thrash metal's velocity with groove metal's rhythmic punch. The project delivers high-energy, riff-driven metal.