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."

Bestial Curse is a black/thrash metal band from Niterói, Rio de Janeiro, Brazil, drawing influence from Hellhammer, Venom, and Bathory. The band features members with ties to Brazilian acts Apokalyptic Raids and Flagelador, and released the album "Masters of Mayhem," recorded at Eclypse Studio in Niterói, on Dark Sun Records.

Bestial Possession is a Black/Thrash Metal band from Trujillo, Peru, formed in 2003 and currently signed to Tyrants Records. The band blends raw South American black metal aggression with thrash fury, drawing on themes of Satan, sex, and death. Their discography spans demos and splits from the late 2000s through to the 2020 full-length "Altares sangrientos" and the 2021 split "Legacy of Terror."

Betrayal is a thrash metal band from Fortaleza, Ceará, Brazil, formed in 2007 and still active. The band's lyrical themes cover war, politics, and destruction, placing them within the aggressive tradition of Brazilian thrash. They have released demo recordings and are listed on Encyclopaedia Metallum.

Betrayer is a heavy and thrash metal band from Belo Horizonte, Minas Gerais, Brazil, formed in 2019 and currently active. Based in one of Brazil's most historically significant metal cities, the band draws on the Brazilian heavy and thrash tradition rooted in the scene that produced acts like Sepultura and Sarcófago. They are catalogued on Encyclopaedia Metallum.

Bewitchment is a one-man death/thrash metal project from Rio Grande da Serra, São Paulo, Brazil, helmed by Rodrigo "Infectz" Costa. The project draws heavily on old-school death metal influences, particularly the early works of Death and Pestilence's "Malleus Maleficarum" era, blending those sounds with thrash aggression. The project released the full-length "Oblivion Shall Reign" (2019) in a limited pressing of 500 copies through multiple Brazilian underground labels including Rapture Records and Extreme Sounds Records.