Barbed Wire were a death/thrash metal band from Brasília, the Brazilian capital, operating in the underground during the mid-2010s before splitting up. Brasília has a smaller but dedicated extreme metal community, and Barbed Wire delivered the raw, aggressive blend of death and thrash that the band's name implies, in the tradition of the brutal early Brazilian extreme metal scene.

Bastardos are a heavy/thrash metal band from Campana, Buenos Aires province, featuring guitarist and vocalist Leandro Maidana, guitarist Marcos Campos, bassist Facundo Bougnet, and drummer Cristian Basilio. The band released their album Visiones de un Mundo en Decadencia in July 2020, an eight-track record that includes tracks such as "Sacerdotes de la Miseria" and "Nada Quedará." Not to be confused with the Buenos Aires-based Bastardös, this band carves out a rawer, more street-level approach to Argentine heavy metal.

Bastardös are a thrash metal band from the La Paternal neighborhood of Buenos Aires, built around vocalist and guitarist Tommy Doglioli alongside drummer Federico Pinzolas, guitarist Camilo Ibañez, and bassist Maximiliano López. The band earned a reputation in the Argentine underground for visceral live shows and lyrics grounded in everyday street-level hardship. Their 2024 album Entierrö, a 27-minute slab of aggressive thrash, was formally presented at Uniclub in Buenos Aires to mark the record's official release.

Basttardz are a crossover thrash/hardcore band from São Luís, Maranhão, formed in 2020 during the Covid-19 pandemic. Taking cues from Ratos de Porão, Municipal Waste, and D.R.I., the band sings entirely in Portuguese and channels working-class Brazilian rage on their debut album Brasil com Z, which tackles labor exploitation and social inequality in eight tracks recorded in a garage spirit.

Battery was a thrash metal band from Jundiaí, São Paulo, active from 1998 until their split. Part of the interior São Paulo underground thrash scene, the band played in the aggressive Bay Area–influenced style that was widespread in Brazilian metal clubs during that era, with Jundiaí serving as a small but active node in the broader state metal circuit.

Thrash metal duo from Anápolis, Goiás, Brazil — brothers Gabriel and Lucas Alves on guitar/vocals and drums — who later relocated to New Jersey. Formed in 2013, they blend old-school thrash with progressive arrangements and modern production, citing Metallica, Sepultura, Death, and Dream Theater as touchstones; their debut album Burn Up This Truth arrived in August 2020.

Thrash metal and crossover band from São Paulo, Brazil, active from 2012 until their split-up. Rooted in the São Paulo scene's affinity for American-style crossover thrash, Belial played fast, aggressive music at the intersection of metal and hardcore punk, in the tradition of the city's long-running street-level extreme underground.

Belzek is a thrash metal band from Olmué, Chile, whose debut album The Process was recorded and mixed at Nube Negra Records in Limache and released on December 31, 2024. The eight-track record features the five-piece lineup of Marcelo Villalón Vergara (vocals), Marcelo González Galarce and Álvaro Soto Chávez (guitars), Ivan Pinto Castro (bass), and Alan Reyes Iribarra (drums), delivering aggressive thrash with songs tackling conflict, social distrust, and inner struggle.

Berzerkers is a thrash metal band from Aracaju, Sergipe, Brazil, blending thrash with elements of death and speed metal. The band is an active independent act within the underground metal scene of Sergipe, with releases including the track "Machine Gun."