Cafeterasub is a Death/Thrash/Groove Metal band from Ambato, Ecuador, with roots stretching back to 1994. Originally founded as a death metal act called Damaged Skull, the band evolved through numerous lineup changes and genre influences to forge a distinct style of their own, releasing full-lengths including Deidades desenmascaradas (2004), Espíritu virus (2007), and the EP Ojos de un dios en celo (2020). They are one of the longer-running metal acts to emerge from Ecuador's central highland region.

Calvario is a groove metal and metalcore band from Ituzaingo, Buenos Aires, Argentina, active since 2016. The band self-released their debut self-titled album through their Bandcamp page, establishing a heavy, riff-driven sound that sits between the rhythmic punch of groove metal and the aggressive structures of metalcore. They remain an active presence in the Buenos Aires underground metal circuit.

Carne de Cañón is a Heavy/Groove Metal band from Cuenca, Ecuador, active since 1999. The band released their self-titled full-length in 2018, a 13-track collection that draws together the best of their catalog and showcases a groove-driven sound firmly rooted in the metal tradition of Ecuador's southern sierra. They continue to operate independently out of Cuenca.

Cerebral Insane was a death/groove metal band from Corrientes, Argentina, formed in May 2017 with a lineup of five members including vocalists Cesar Meza and Esteban Vargas, guitarist Leandro Juarez, bassist Juanma Postigo, and drummer Bruno Sosa. The band released their debut EP "Esquizofrenica" in 2018, featuring tracks "Eutanasia" and "Rompecabeza," and also appeared on the Argentine metal compilation "Voz Eterna" that same year. They have since split up.

Choque is a thrash/groove metal band from Santa Catarina, Brazil, formed in 2017. The band is active in the underground Brazilian metal scene and releases music independently through Bandcamp.

Cinical is a groove metal band from Mendoza, Argentina, founded by brothers Vaka and Bruno Allegretti alongside Warren Marino and Uriel Memoli. Their album Resurgir was produced by Andrés Giménez of Argentine metal legends A.N.I.M.A.L., giving the record a heavy, mid-tempo groove rooted in the Mendoza underground scene.

Claustro is a groove metal band from Buenos Aires and Hurlingham, Argentina, formed in 2011 by guitarist and vocalist Cristian Karpluk alongside guitarist Mariano Valsecchi, bassist Dante Roncali, and drummer Juan Marcelo Hernández Herrero. The band has released three studio albums — Pulsión Animal (2015), H.I.S. (2017), and En el umbral de la extinción (2020) — building a catalog that blends groove and thrash metal with hard rock influences.

Core Divider is a thrash/death/groove metal band from São Paulo, Brazil, formed in 2018 and currently on hold. Their sound draws comparisons to Fear Factory, Pantera, and Machine Head, blending groove metal heaviness with thrash and death metal aggression. The band contributed tracks to the Imperative Music compilation series (volumes 13 and 14), appearing alongside international acts such as Kreator and Obituary.

Craneo is a thrash/death/groove metal band from Corrientes, Argentina, whose lineup includes Walter Gómez on vocals, Ariel Flores on guitar, David Vallejos on bass, and Ariel Duarte on drums. They released a six-track demo in March 2020 and appeared on the compilations "Medellín Death Zone Vol. 1" and "Death To Capitalist Grind Volume One" with tracks including "Cura crucificado" and "Eres cadáver".