Aggressors are a death/thrash metal band from Botucatu, São Paulo state, formed in 2014 around members who previously played together in a different project. Their debut EP The First Evil, released through Odioground Records in September 2016, delivers four tracks of grinding riff-driven thrash with death metal brutality and lyrical themes focused on war, religion, and political critique.

Agnus Die are a thrash metal band from Vinhedo, São Paulo state, formed in 2015 and active in the Brazilian underground thrash circuit. Based in the interior of São Paulo state, they play traditional thrash metal and remain an independent, grassroots act with limited wider documentation outside the Metal Archives registry.

Thrash metal band from Fortaleza, Ceará, formed in 2023. A very new entry into the northeast Brazilian metal scene, playing in the aggressive, riff-heavy thrash tradition that has long been a staple of Brazilian extreme metal.

Thrash metal band from Macaé, Rio de Janeiro, with roots tracing back to a veteran act of the same name founded in 1982 in that city — one of Brazil's earliest thrash outfits. The band recorded demo tapes including 'Destruição Metálica' (1986) and 'Kill or Die' (1988, later reissued on vinyl), singing in Portuguese with hardcore-influenced vocals over raw thrash riffs before disbanding and eventually reconvening.

Ahínco is a progressive death and thrash metal band from Mar del Plata, Argentina, active since 2013 with a lineup anchored by Lucho Alippi on bass, vocals, keyboards, and synths, Hernan Chave on guitar, and Ariel Sanchez on drums. Their prolific Bandcamp catalog includes releases such as La Canción de los Sepulcros (2020) and Quem Deus vult perdere, prius dementat (2021), the latter recorded at UC Dadson studio in Mar del Plata and mixing atmospheric depth with technical intensity. The band's work spans Spanish-language lyrical themes with a compositional range that draws on both death metal aggression and progressive architecture.

Akeronte is a thrash metal band from Haedo, in the Buenos Aires metropolitan area, built around the aggressive, riff-forward sound of classic Bay Area and South American thrash. The band released two EPs early in their career — Mientras los Reyes Ríen in 2009 and Epidemia in 2010 — establishing their place in Argentina's underground thrash scene. The current lineup features Diego Atienza on vocals and guitar, Julian Cortina on guitar, Leandro Lebenas on bass, and Lucas Flores on drums.

Alchemist was a thrash metal band from Porto Alegre, Rio Grande do Sul, formed in 2013 and active in the southern Brazilian underground scene before splitting up. Operating independently, the band released music through their Bandcamp page "alclaboratories" and were part of a thrash revival wave in Porto Alegre, a city with a strong tradition in Brazilian heavy music.

Alcohelldrugs is a raw speed/thrash and metal-punk duo from Vitória de Santo Antão, Pernambuco, formed in 2018 by brothers Thiago Xaruto and Henrique Alcoholic out of the northeastern Brazilian underground. The band released the EP "Never Stop the Madness" and the split "Hellish Alcoholic Attack" with Burial Ground, as well as the 2020 album "Infernal Metal Punk" through Murder Records, playing chaotic, lo-fi thrash punk in the tradition of Brazilian and international extremity.

Alcoholic Rites are a thrash metal band from San Vicente de Tagua Tagua, in Chile's O'Higgins region, who have been active since the early 2010s. Their discography includes the albums Alkomanifesto (2010) and Fermented in Hell (2013), along with the 2016 split Drunk and in Charge with Lustrum on the Eternal Death label, and Rope of the Spirits (2022). The band's self-described "Alcoholic Dirty Heavy Thrash Metal of War" sound is rooted in old-school thrash with lyrics written entirely in Spanish.