Inflexion is a band from Sagunto, Spain, formed in 2018, blending heavy metal/hard rock foundations with melodic groove metal elements. The band delivers a versatile sound that spans from classic metal hooks to rhythmic groove-driven heaviness from the coastal Valencian town.

Influens is a groove metal band from Budapest (early); Birmingham, Hungary, active since 2018 and delivering heavy, rhythmic riffage with crushing mid-tempo intensity. The project channels the headbanging immediacy of groove metal.

Inhumantra is a heavy/groove metal band from Budapest, Hungary, active since 2021 and delivering heavy, rhythmic riffage with crushing mid-tempo intensity. The project channels the headbanging immediacy of groove metal.

Inhumen is a groove metal/metalcore band from Eger, Hungary, active since 2019 and delivering heavy, rhythmic riffage with crushing mid-tempo intensity. The project channels the headbanging immediacy of groove metal.

Innermost Fear is a heavy/groove metal with alternative rock elements band from Athens, Greece, active since 2021 and delivering heavy, rhythmic riffage with crushing mid-tempo intensity. The project channels the headbanging immediacy of groove metal.

Innerself is a thrash/groove metal band from Pola de Lena, Spain, active since 1997, making them one of Asturias's longest-running thrash acts. Nearly three decades of output have seen the band perfect their blend of thrash velocity and groove metal weight from the mountainous Asturian interior.

Inntrance is a heavy/groove metal band from Madrid, Spain, active since 2011, blending traditional heavy metal power with the rhythmic crunch of groove metal. Over a decade, the band has built a hypnotic, trance-inducing approach to heavy music from the Spanish capital.

Inprobus is a melodic death/groove metal band from Štúrovo, Slovakia, active since 2020 and blending melodic harmonies with death metal aggression. The project channels the twin-guitar traditions of Scandinavian-influenced melodeath.

Insane Art is a groove/thrash metal/metalcore band from Novosibirsk, Russia, active since 2017 and blending thrash metal's velocity with groove metal's rhythmic punch. The project delivers high-energy, riff-driven metal.