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.

Beyond the Grave is a thrash metal band from Itaquaquecetuba, São Paulo, Brazil, with lyrical themes centered on war, death, and religion. The band released the full-length album "Predictions of Disgrace" in 2016 through Kill Again Records, their second studio effort, recorded at No Limits Estúdio in Arujá. They have maintained an active presence in the Brazilian underground thrash scene with additional demo and compilation appearances.

Big Bastards are a Santiago groove and D-beat metal band who released their self-titled five-track debut in September 2021. The record is a raw and direct statement of political and social rebellion, with tracks like "Hijos del fuego" and "Muere por tu lider" driving home its confrontational edge.

Bio Terror are a black/thrash metal band from Chillán, Chile, operating in the tradition of South American necro metal with themes of anti-Christianity, destruction, and war. Their 2023 compilation "Blasfemia, Sodomia y Muerte," released on limited cassette through Spain's Profaner Records, gathered material from across the band's entire history alongside live recordings from a 2021 show in Talca.

Black Goat Spell is a thrash metal and crossover band from São Paulo, Brazil, formed in 2021. The band incorporates influences from Afro-Brazilian spiritual traditions such as orixas and umbanda into their aggressive crossover thrash sound, setting them apart in the Brazilian underground. They released their self-titled debut material in 2025 via Bandcamp.