Thrash metal band from Sete Lagoas, Minas Gerais, formed in 2014. Their debut full-length Give Him Your Soul was released in 2015 through a joint effort between Eternal Hatred Records, Black Legion Productions, and Rising Records.

Serpentor is a thrash metal band from Rafael Castillo in the greater Buenos Aires area whose discography spans six releases, including the albums Poseido (2004), Final Sangriento (2007), Privación Ilegítima de la Libertad (2009), and Legiones (2015). Over their career they shared stages with international acts including Megadeth, Overkill, Testament, Destruction, and Sodom, with vocalist Guillermo Romero and bassist Pablo Lescano among their longtime members.

Death and thrash metal band from Rio de Janeiro, formed in 1999 and later split up. The band released a self-titled album documented on Discogs in both vinyl and CD formats, with tracks including War Feelings, Death Penalty, and Finis Glori Mundi.

Crossover thrash band from São Gonçalo, Rio de Janeiro, formed in 2008 around vocalist Marcos, guitarist Vinicius, and bassist Juan. The band released their debut album Crossover Inferno on May 12, 2017 — a 14-track record recorded at Vinicius Gomez's home studio in Japeri, RJ, with cover art by Natacha Andrade.

Sick Faith is a thrash metal band from Sevilla, Valle del Cauca, Colombia, formed in 2007. They released their debut full-length "Blinded Nation" in 2013 through EBM Records, followed by "A Comedy Called Religion" in 2015 on Brutalized Records, with material covering themes of war, violence, and politics. The band has appeared on multiple Colombian metal compilations including two volumes of the Extreme Magazine sampler series.

Death/thrash metal solo project from Teresina, Piauí, run by Stephen Lemos, who handles all instruments and vocals. Lemos revived the project in 2018 after an eleven-year hiatus from its original 2007 formation, releasing the Primeira Demo in 2019 and the self-titled EP in 2023, with lyrics focused on political and religious criticism.

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.

Sin Pudor is a thrash metal and punk band from Bogotá, Colombia, active since 2005. They released the EP "Lasciva Intoxicación" in 2015 and have issued several singles and split releases, with lyrical themes centered on LGBTQ+ rights, gender expression, feminism, and anti-fascism. The band operates independently and has built a catalog of politically charged material through digital releases on their Bandcamp page.

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.