Iseghaal were a Salzburg black metal band founded in autumn 2005 by Lord Drakanus, sAv, and Sodium, recording their debut album Iuvavum Black Metal Demon — titled after the Roman name for Salzburg — in February 2008. The band explored themes of Satanism and paganism across their active years before splitting up, leaving behind two active periods: 2005–2009 and 2013–2017.

Isegrim is a black metal band from Pfinztal, Germany, formed in 2026, named after the wolf character from the Reynard medieval tales. The band represents the newest generation of Baden black metal.

Black metal band from Kouvola in southeastern Finland, active since 2015. Their name — referencing a legendary Norse warrior — channels black metal from the Kymenlaakso region.

Isenscur is a black metal project from Birmingham, United Kingdom, active since 2012 and forging dark, aggressive extremity within the United Kingdom black metal scene. The project channels the unrelenting intensity of the genre.

Isenvinter is a melodic black metal band from Copenhagen, Denmark, formed in 2024, channeling the cold beauty of Scandinavian winter into tremolo-picked melodies and atmospheric darkness. The band's name — evoking "iron winter" — captures the frozen severity of their sound.

Isfyd is a black metal project from Swansea, United Kingdom, active since 2023 and forging dark, aggressive extremity within the United Kingdom black metal scene. The project channels the unrelenting intensity of the genre.

Isgherurd Morth is a avant-garde/progressive black metal project from Krasnoyarsk, Russia, active since 2021 and forging dark, aggressive extremity within the Russia black metal scene. The project channels the unrelenting intensity of the genre.

Isgärde is a black metal project from Öland, Sweden, active since 2017 and forging dark, aggressive extremity within the Sweden black metal scene. The project channels the unrelenting intensity of the genre.

Ish Kerioth is a black metal band from Ghent, Belgium, formed in 2019, with releases including One of the Twelve, Under Unclean Wings, and a split with Zwarte Dood titled Silent on the Cross. The band's Biblically themed titles and With Roman Precision suggest a conceptual focus on religious betrayal and ancient violence.