Heavy metal band from São Paulo, formed in 2018, featuring Nando Fernandes on vocals, Edu Ardanuy on guitar, Luis Mariutti on bass, and Rafael Rosa on drums. Mariutti, a founding member of both Angra and Shaman and a twelve-time winner of Brazil's best bassist award, anchors the rhythm section on the band's self-titled debut album, released in November 2022 and produced at Orra Meu! Studios.

Sinner's Blood is a melodic heavy/power metal project from Santiago, Chile, built around Chilean producer and multi-instrumentalist Nasson and featuring Chilean vocalist James Robledo, known for his work with Renegade (Chile) and Thabu (Argentina). The band released their debut album The Mirror Star on Frontiers Records, drawing on the emotional and vocal traditions of Ronnie James Dio, Jorn Lande, and Russell Allen.

SinSilencio is a progressive metal band from Santiago, Chile — the name translates from Spanish as "WithoutSilence." Their 2016 album Toroide is their second studio full-length, following a trajectory of intricate, Spanish-language progressive rock and metal.

Progressive death/groove metal band from Rio de Janeiro, formed in 2018 by vocalist and guitarist Alexandre Castellan. Their debut album In Chaos We Trust (2018) featured guest drumming from Kevin Talley (Chimaira, Suffocation, Six Feet Under), and their second album Psychonaut (2024), mastered by Mark Lewis, drew lyrical inspiration from Carl Jung, shamanism, and alchemy.

Sistema Kanibal is a death metal and grindcore band from Santiago, Chile whose lyrical themes center on politics, war, and violence. The band released the promo EP Ejércitos del Odio and have been active in Santiago's underground extreme metal scene.

Skarbrand is a thrash metal band from Punta Arenas, Chile, one of the southernmost cities in the world, formed in 2019. They released the album Obliteration, establishing themselves as part of a small but active metal scene at the tip of South America.

Thrash/death metal band from São Paulo, active since 2003, led by guitarist and vocalist André Gubber (also of Pentacrostic and ex-Nervochaos). Their debut album Condemning the Empty Souls (2013) was released by Shinigami Records and featured guest appearances by Fernanda Lira of Nervosa and Luiz Carlos Louzada of Vulcano; the follow-up Dissolved was recorded at Estúdio 44 between March and September 2016 and released in May 2017.

Skizofrenia was a thrash metal band from Limache, Valparaíso, Chile, active from 2012 to 2015 before splitting up. The band started as a tribute act before developing original material, playing in Chile's Valparaíso region during their brief run.

SKLP is an industrial metal project from Santiago, Chile, founded in late 2019 or early 2020, drawing inspiration from late 1980s and mid-1990s industrial metal. The project's name is a contraction of the Sanskrit word "sankalpa," reflecting its lyrical focus on self-transformation and the use of music as mantras and audio sigils.