A.L.M.A. is a groove and death metal band from Chascomús, Buenos Aires Province, active in the Argentine underground metal circuit. The band is documented on Encyclopaedia Metallum and released Demo 1, marking their entry into the local extreme metal scene.

Act of Revenge is a groove/death metal and deathcore band from Salvador, Bahia, formed in 2015 and anchored by vocalist Danfacto Oliveira, whose performance earned the band Best Vocalist honors at the Prêmio Palco do Rock 2014 popular vote — the same year they also won Best Band. Their 2018 EP 5 Atos delivers heavy, groove-driven material entirely in Portuguese, and the band has performed across multiple editions of the Festival Palco do Rock, establishing them as one of Salvador's most visible acts in the heavy underground.

Ambivalentt is a groove and thrash metal band from São Paulo, Brazil, formed in 2018. The band released a self-titled EP in April 2018, drawing on the city's rich tradition of crossover and groove-inflected thrash. São Paulo's dense metal underground has long been a hotbed for thrash acts pushing toward heavier and more rhythmically aggressive territory, and Ambivalentt fits squarely within that lineage.

Ancesttral were a groove/thrash metal band from São Paulo active from 2003 until their split-up, drawing on classic US thrash influences — Metallica, Pantera, Slayer, Anthrax — while incorporating modern groove and alternative metal textures. Their discography includes the debut full-length The Famous Unknown (2007) and Web of Lies (2016), the latter a well-reviewed eleven-track album that showcased a heavier, more polished direction.

Groove and thrash metal band from Brasília with horror-themed lyrics drawn from slasher films, zombies, and Lovecraftian mythology. Their sound draws from 1980s thrash metal and 1990s stoner and sludge, resulting in an eclectic heaviness reflected in releases such as "Grooves From the Grave: Mutants, Slashers, Zombies and Enraged Lovecraftian Deities." The band was active until their split-up and self-released their catalog on Bandcamp.

Athkan is a groove and thrash metal band from Salta, Argentina, formed in 2013 by guitarist Gustavo Díaz and bassist Sergio Ruiz. Drawing on the post-thrash heaviness of Pantera and Meshuggah, the band released two records in 2013 — the album Walking Through Fear and the compilation Simbiosis — with vocalist Mauro Espínola and drummer Eduardo Fernández rounding out the lineup.

Black Djamba is a groove/death metal and hardcore band from Campinas, São Paulo, Brazil, formed in 2023. The five-piece outfit — featuring Pedro Oliveira on guitar, Matheus Daldon on bass, Yuri Dimov on drums, Pedro Mantovani on vocals, and Arthur Custodio on guitar — fuses death metal heaviness with groove and hardcore aggression. They are an independent act operating in the contemporary Brazilian metal underground.

Carnívoro is a groove/death/thrash metal band from Boa Vista, Roraima, Brazil, one of the few extreme metal acts to emerge from that northern state. The band plays original extreme metal blending thrash and death metal influences, with the single "Panorama de Aço" showcasing their hybrid of aggressive rhythms and heavy riffing.

Choke is a groove/death metal and grindcore band from Curitiba, Paraná, Brazil. Signed to Top Music Brazil, the band's lyrical themes center on death, misery, and social unrest, and their early releases include the demo "Dictatorshit Holocaust from Third World" (1999) and the split CD "Manifest" (2001) with STN, followed by "Slum Radio" in 2003.