Ignoramus is a atmospheric black metal act from Yekaterinburg, Russia, active since 2019 and crafting immersive, expansive compositions that push beyond conventional black metal boundaries. The project blends atmospheric textures with the intensity of extreme metal.

Ignotum is a black metal project from Como, Italy, active since 2014 and forging dark, aggressive extremity within the Italy black metal scene. The project channels the unrelenting intensity of the genre.

French musician Gautier Serre has operated as Igorrr since 2005, self-releasing demo recordings before building an internationally recognized catalog that defies genre categorization by fusing black metal, death metal, breakcore, baroque classical music, Balkan folk, and trip hop into recordings of extreme compositional density. After signing with Metal Blade Records in 2017, the project released Savage Sinusoid (2017) and Spirituality and Distortion (2020), with earlier albums Nostril (2010) and Hallelujah (2012) establishing the foundational aesthetic of abrupt tempo shifts, operatic vocals, growling, and electronic manipulation. The project has expanded into a full live band performing Serre's compositions.

Igric is a pagan/ambient black metal act from Nitra, Slovakia, active since 2004 and channeling ancient mythology and warrior heritage through aggressive metal. The project draws from pre-Christian traditions and epic themes.

Ihloosuhree is an experimental black metal band from Antwerp, Belgium, formed in 2018, blending dissonant and psychedelic black metal with atmospheric noise elements. Their releases, including Analysis Paralysis (2018), In De Fleur Van De Sleet (2020), and Een étude in de val, herval en verval (2023), push black metal into uncharted, avant-garde territory.

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

IHXHI is a atmospheric/post-black metal act from Oslo, Norway, active since 2025 and crafting immersive, expansive compositions that push beyond conventional black metal boundaries. The project blends atmospheric textures with the intensity of extreme metal.

IIIusion is a depressive black metal, ambient project from Trento, Italy, active since 2021 and channeling despair and isolation through raw, emotionally charged black metal. The project explores the most sorrowful and bleak reaches of the genre.

IIIXK is a black metal project from Russia, active since 2020 and forging dark, aggressive extremity within the Russia black metal scene. The project channels the unrelenting intensity of the genre.