Impera Regnum is a metalcore and death metal band from Bogotá, Colombia. The band released their debut full-length The Honor of Tribal Blood in 2025.

Imperador Belial is an old school black metal band from São Gonçalo, Rio de Janeiro, Brazil, formed in 2013. The band released the album "Morbid Rites" in 2013 through Narcoleptica Productions, followed by "Curse of Belial", establishing themselves as consistent contributors to the Brazilian black metal underground. Their sound is rooted in raw, orthodox black metal tradition.

Imperfecta is a heavy/thrash metal band from Rio de Janeiro, Brazil, whose concept was developed by guitarist Nilmon Filho over more than a decade before the official debut in 2021. The band released their debut album "Broken Humanity" in 2021, marking the formal arrival of a project long in gestation. Their music channels classic thrash metal aggression within the vibrant Rio de Janeiro heavy metal scene.

Imperial Doom is a death metal band from São José do Rio Preto, São Paulo, Brazil, with roots tracing back to 1994 and a renewed activity in the early 2020s. The band released the demo "MMXXII" and the recording "Forest of Blood" in 2022, followed by "MMXXIV" in 2024, maintaining a prolific output since their return. They play old school death metal rooted in the traditions of the early Brazilian and international extreme metal scene.

Imperial Dusk is a black metal band from Santa Maria da Vitória, Bahia, Brazil, whose prolific discography includes the albums Satanic Emperor (2011), Northern Hordes (2014), and Dimensions of Shadows (2015). The band is a trio featuring vocalist/guitarist Nocturnus, bassist Mortem, and drummer Aeternal, recording at Cripta Studio in their hometown. Their sound draws on raw second-wave black metal traditions with themes of Satanism and occultism.

Imperio is a power metal band founded in Buenos Aires in August 1996 by guitarists Gustavo Gorosito and Wan Lee alongside vocalist Christian Bertoncelli, becoming one of the most prominent power metal acts in Argentina. Their second album Paz en la tormenta (2000) featured guest appearances by Roland Grapow, guitarist of German legends Helloween, and the band later released the live album Regreso vivo (2008) and the studio album Latidoamérica (2010).

Imperium Infernale is a black metal trio from São Paulo, Brazil, composed of vocalist Áscaris, guitarist/bassist Morbius, and drummer Impaler, with a discography spanning from 2006 to 2014. The band draws on second-wave black metal influences, blending raw aggression with melody, and delivers material largely in English with some Portuguese lyrics. Their work has been noted by Brazilian metal press as among the stronger domestic black metal acts.

Imperius Profanus is a black metal band from Goiânia, Goiás, Brazil, founded in 2009 by Lord Blasphemation, formerly of Profanos. The band released their debut demo Barbaria in early 2009, followed by the full-length Império Profano in 2017 via Ad Bellum Records. Their lyrical content centres on Satanism and occultism.

Impery was a black metal band from Caracas, Venezuela, active from 2005 until their eventual split-up, releasing music on Satanarsa Records. The band built a substantial catalog rooted in anti-Christian and Satanic themes, spanning early demos through three full-lengths: "I" (2013), "Ars Goetia" (2015), and "II - La mirada muerta de la serpiente" (2017), with a final album, "Cristo fue mortal," appearing in 2019. Their Bandcamp page presents a dark aesthetic consistent with their occult lyrical focus.