Sin Anestesia is a thrash metal band from Comodoro Rivadavia, Chubut, Argentina, with a lineup featuring bassist Nacho Carzoglio, guitarist Fuentes, and drummer Casanova. The band released their debut EP, "Nunca Seré Parte," in 2020 across digital platforms and followed it with a CD release in 2021 through The Ragged Records Music. Drawing on the old-school thrash sound of acts like Anthrax and Overkill, the five-track EP established them as part of Argentina's active underground thrash scene.

Sincope is a thrash/crossover hardcore band from Buenos Aires, Argentina, featuring Gaby on vocals, Bava on guitar, and Pela on drums. The band has released three studio albums: "Nuestra Generación" (2004), "Carroña" (2013), and "Somos Culpables" (2016), all independently produced and self-managed. Their music addresses social and political themes from a working-class perspective, and they have sustained over two decades in the Buenos Aires underground scene.

Skullmasher is a death-thrash metal band from Campana, Buenos Aires province, Argentina, operating as an independent act since their formation in 2013. The band released "Death Follows Your Steps" in January 2013 and followed it with two releases in June 2015: "Human Slaughterhouse" and "Wrath of the Fallen Gods." Their music blends death and thrash metal elements with black metal influences, placing them within Argentina's underground extreme metal scene.

Thrash metal band from São Paulo formed in September 1996 by vocalist Sidney Guerra alongside bassist Marcos Rodrigues, drummer Texx, and guitarist Leandro Brenner. The band released their debut demo 'Travelling Through Another Reality' in September 1997 before splitting up.

Skyreach is a black/thrash metal band from Merlo, Argentina, operating in the DIY underground scene with a lineup of Byakko (guitars and vocals), Matías "Matymoto" (bass and backup vocals), and Marce Sic (drums). The band draws heavy influence from Japanese extreme music — particularly ABIGAIL and G.I.S.M. — blending black metal with thrash, hardcore punk, and extreme noise, and taking their aesthetic cues from Japanese horror cinema. Their debut release "Tsubaki Kyo no Shōki" saw them expand beyond Argentina, including promotional shows in Uruguay.

Blackened speed/thrash metal band from Curitiba, Paraná, whose roots trace to 1987 before the project was formally established in 1999 and then reformed in 2017. Their 2017 self-titled two-track release features the lineup of Urso on bass and vocals, Zema on guitars, and Jairo on drums.

Blackened death/thrash metal band from Porto Alegre, Rio Grande do Sul, active from 2003. The band released two demos — 'Bless the Plague' in 2003 and 'Third World Guerrilla Mothafuckers!!!' in 2005 — with a lineup of Marcello Marzari on bass and vocals, Ed Storm and Ronaldo Lima on guitars, and Sandro Moreira on drums before splitting up.

Thrash metal band from Ananindeua, Pará, formed in December 2019 with a stated focus on old school thrash. The band released their debut album 'Nação Suicida' on August 5, 2021, a nine-track record addressing themes of political conflict, systematic alienation, and postmodern social problems.

Death/black metal band from João Pessoa, Paraíba, formed in 2003, with a discography spanning five albums: Sadomazocristo (2005), Renascida em Trevas (2008), Sempiterno Agressor (2011), Mutapestaminação (2016), and Animaligna (2022). The current lineup includes vocalist and bassist Daniel Hate alongside guitarists Samidarish and Seth, with the band signed to Altera Pars Records.