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.

Ben Baruk is a Christian symphonic and progressive metal band from Rio de Janeiro, Brazil, formed in 2018 by musicians united by shared faith and a drive to create heavy, introspective music. Their debut EP "Vidas que Choram" (2018) featured six Portuguese-language tracks blending symphonic arrangements with metal influenced by Periphery, TesseracT, Paradise Lost, and Paramaecium. The band has since evolved their lineup and shifted to English-language songwriting while maintaining their progressive and extreme metal identity.

Benefactor was a death metal and grindcore band from Suzano, São Paulo, Brazil, active from 2011 until their split-up. The band operated in the extreme metal underground of the greater São Paulo area, blending the brutality of death metal with the speed and aggression of grindcore. They self-released material through Bandcamp during their active years.

Beraza Chainsaw Massacre are a death metal band from Berazategui, on the southern outskirts of Greater Buenos Aires, active since 2017. They released their album Premeditación y alevosía in October 2018, announcing themselves as a brutally focused act in the Buenos Aires underground death metal scene. The band continues to release music independently through their Bandcamp page.

Berith is a Christian death metal band from São Paulo, Brazil with roots going back to the early 1990s under the name Devilcrusher before adopting the Berith name. The band explored themes of Christianity, sin, and repentance through a death metal framework and released material on Extreme Records during their active years. After splitting up and reforming multiple times, they are currently listed as split-up on the Metal Archives.

Berserk is a death metal band from Fortaleza, Ceará, Brazil, formed in 2020. The band operates in the extreme metal underground of northeastern Brazil and self-releases material through Bandcamp. They contribute to a growing death metal scene in Ceará, a region less commonly associated with the genre compared to São Paulo or Rio de Janeiro.

Bertoncelli is a melodic heavy/power metal project from Buenos Aires Province fronted by vocalist Christian Bertoncelli, a veteran of Argentine metal bands including Horcas, Imperio, and Renacer. The band released the full-length album Leyendas de amor y sangre in 2011, recorded and mixed at Doble B Studios in Buenos Aires. The project later continued under the name Holy Rock.

Bertran de Born is a drone/doom/sludge metal band from Bauru, Brazil, formed in 2015. The band released their debut demo "Malebolgia" in December 2015, an independent release listed on Encyclopaedia Metallum.

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."