Antropos is a Brazilian groove metal and metalcore band formed in 2020, blending the heavy mid-tempo rhythms and chugging riffs of groove metal with the melodic structures and dynamic range characteristic of metalcore. Active within Brazil's contemporary underground scene, the band represents the country's ongoing absorption and reinterpretation of international heavy subgenres through a distinctly South American lens. They distribute their music independently through Bandcamp.

Antítese were a thrash/death metal band from Osasco, São Paulo, originally founded in 1986 and part of the first wave of Brazilian extreme metal. Their sole full-length album, also titled 'Antítese', was released in 1989 — a record marked by old-school thrash riffing and semi-growled vocals with a death metal edge, placing them alongside contemporaries like Sepultura and Mutilator in the late-80s Brazilian underground. The lineup included vocalist Hetzel 'Bruxxo', guitarist Laércio Jr., bassist Fábio Barreto, and drummer Nonô.

Anubis is a Brazilian black metal band formed in 2009, named after the Egyptian deity of death and the afterlife — a common touchstone for black metal's preoccupation with mortality and the occult. Operating within Brazil's deeply rooted extreme metal underground, the band has remained active since formation and releases music independently through Bandcamp. Their sound follows the raw, atmospheric tradition of black metal that has long thrived in Brazil's underground scene.

Heavy metal band from Mogi das Cruzes, São Paulo, active since 2013. Their Bandcamp catalog includes the split release "Chalet / Split w/ DEADMEN" alongside other heavy metal material, placing them within the underground heavy metal circuit of greater São Paulo. The band maintains an active presence in the Brazilian independent metal scene.

Black metal and grindcore band from Manaus, Amazonas, active from 2016 until their dissolution. Operating out of the Amazon region — an unconventional home for extreme metal — they blended the blastbeat intensity of grindcore with the rawness of black metal. The band documented their output on Bandcamp and maintained a presence in Brazil's underground extreme metal network.

Anuuruk is a death metal band from Santiago, Chile, whose music draws on Sumerian mythology, occultism, and themes of uncreation. The band's lineup includes vocalist Xul, bassist and rhythm guitarist Hiberg Urthoris, and lead guitarist Amon. They released their debut album Unspeakable Uncreation in August 2017 through Apocalyptic Productions, a Santiago-based underground death and black metal label.

Anátema was a black/doom metal band from Campina Grande, Paraíba, Brazil, formed in 2021. The band combined the desolate atmosphere of black metal with the slow, crushing weight of doom metal, drawing from a region of Brazil with a small but growing extreme metal underground before splitting up.

Aonikenk is a speed metal band from Plaza Huincul, Neuquén, taking their name from the Tehuelche word for "people from the south" in a nod to their Patagonian roots. The band built a catalog of heavy metal albums with socially conscious and nativist themes, including "Sentir Metalero" (2001) and "A Mi Argentina" (2005), the latter released on Icarus Music. Members Daniel Carrasco, Ariel Basualto, and Juanchy Basualto drove the band's distinctly Argentine sound throughout their run.

Aorta was a melodic heavy metal band from the Buenos Aires area who released three studio albums — "Desde el Infierno," "Esclavo de tu castigo" (2005, featuring a guest appearance by Claudio Marciello of Almafuerte), and "Sin temor a continuar" (2009) — on the Del Imaginario Discos label. The band's most notable live milestone came in 2009 when they opened for Motörhead. They eventually disbanded, leaving behind a solid catalog within Argentina's traditional heavy metal scene.