One of the earliest Brazilian thrash bands, Necromancia came together in São Bernardo do Campo in the mid-1980s and spent decades honing the groove-inflected thrash attack that defined their later records. Check Mate (2004), produced by Sepultura's Andreas Kisser, marked a high point in that evolution, blending the bone-dry riffing of Pantera-era groove metal with their São Paulo thrash roots, while Back from the Dead (2011) pushed the tempos back up toward their earliest material.

Negativus blends old-school death metal with groove-laden heaviness, drawing on the sounds of Obituary, Entombed, and Celtic Frost while writing all their lyrics in Portuguese. Their 2024 debut "Detestabilis" features vocalist Eduardo Jarry alongside guitarist Thyago Trajano, bassist/guitarist Victor Hugo Targino, and drummer Eduardo Amorim, delivering ten tracks of punishing, mid-paced brutality.

Num is a groove metal band from Buenos Aires, Argentina, whose sound blends thrash, djent, and alternative metal influences into a dense, rhythmically focused attack. The band released three albums in rapid succession — NUM (2014), Desarreglos (2015), and Lo Que Sangra (2017) — building a reputation in the Argentine underground metal scene.

Groove/death metal band from Santiago, Chile, formed in 2015. Their debut release, the five-track EP Disruption (August 2015), blends the rhythmic chug and midtempo heaviness of groove metal with death metal aggression.

Obsoleto is a Buenos Aires melodic death/metalcore band founded in 2017 by guitarists Ezequiel Zuazo and Patricio Puyo, later joined by vocalist Roberto Wolk and drummer Sebastian Lecoque. The band's English-language lyrics draw on science fiction source material — Terminator, Blade Runner, and Westworld among them — exploring themes of artificial intelligence rebellion against humanity. Their debut album Awakening was released in February 2022.

Patricide is a father-son death/groove metal project from Buenos Aires that weaves in djent and doom textures. The band released their album Scelerate in 2025, a twelve-track effort showcasing their dense, technically oriented approach to extreme metal.

Plano D is a groove metal band from Rio Grande do Sul formed in 2016, channeling the heavy, mid-tempo riff-driven energy of the genre's core influences into a southern Brazilian context. The band later evolved and continued activity under the name Obscure Perception, suggesting an ongoing drive to develop their sound beyond their original groove metal roots.

Pot Zombies emerged from Rio de Janeiro in 2017 with their debut demo "Straight from the Grave," a five-track release that leans into the churning, mid-paced riffs of groove metal with touches of thrash and punk aggression. Their self-described "undead" aesthetic pairs dense, heavy rhythms with dark lyrical themes across short, punchy songs.

Ranterío is a groove metal band from Buenos Aires who released their debut album Agonía independently in 2016, followed by a second album, Hoguera de Miserias, around 2020. The band has been a fixture of the Buenos Aires underground metal circuit, including an appearance at Heresy Fest at The Other Place venue in the city.