Latifundio was a heavy metal band from Concordia, Entre Ríos, built around brothers Alejandro Ferrando (vocals) and Pablo Ferrando (drums), joined by guitarist Matías "Bochi" Benítez. The band released two independent albums — "Herejías" (2004) and "Piel de Metal" (2017) — with lyrics addressing social, religious, and political themes.

Lazaro is a thrash metal band from Rafael Castillo, Buenos Aires, founded by guitarist Jorge Moreno following his departure from the long-running Argentine thrash act Serpentor. The band carries on the tradition of socially and politically charged thrash metal from the Greater Buenos Aires underground scene.

Le Chant Noir is an avant-garde black metal project from Rio de Janeiro, formed in 2016, built around vocalist Lord Kaiaphas (ex-Ancient, Thokkian Vortex), guitarist Mantus (Marcelo Vasco of The Troops of Doom and Patria), and drummer Malphas (Mysteriis). The trio released their debut album Ars Arcanvm Vodvm in 2017, weaving together black metal with progressive and classical influences alongside occult and voodoo lyrical themes. Their second full-length, La Société Satanique des Poètes Morts, followed in 2021 through Personal Records and drew international attention from outlets including Decibel Magazine.

Left Behind is a melodic death metal band from Dores de Campos, Minas Gerais, Brazil, formed in 2013. The band released the album Death, Take Me in October 2013, establishing themselves in the Brazilian underground melodic death metal scene.

Legacy of Kain is a groove and thrash metal band from Curitiba, Paraná, Brazil, featuring guitarists Angelo Torquetto and Karim Serri, both veterans of bands including Doomsday Hymn and Desertor. The band released their debut album I.N.V.E.R.S.O in 2017, sung entirely in Portuguese, followed by Paralelo XI in 2019, and has toured Argentina as part of regional metal festival circuits.

Legacy of the Dead is an epic doom metal band from Irecê, Bahia, Brazil, drawing heavy influence from Candlemass and the classic Scandinavian doom tradition. The band performed the track "Spaceship of Doom" live and contributed to The Power of Doom Metal Bahia, a regional compilation uniting thirteen doom metal bands from Bahia state.

Legio Inferi is a depressive occult black metal band from Campos do Jordão, São Paulo, Brazil, crafting rustic black metal with melancholic passages and dissonant harmonies centered on themes of anti-life, death, and the occult. The band released the full-length Tragédias do Infinito Nascer in 2014 and the EP The Black Host through Plague Demon Records, as well as a split with Namtaru titled That Is Not Dead Which Can Eternal Lie in 2021.

Legion is a thrash metal band from La Plata, Argentina, whose lineup includes Nicolas Liendo on guitar and vocals, Rafael Garritano on guitar, Sergio Carrizo on drums, and John Williams on bass. Their debut album "Gran Mal" was recorded and mixed at Dormir Sucio studio in Berisso during 2016 and released in 2017. The band draws on the tradition of Argentine thrash acts such as Hermética and Horcas.

LegionSky is a symphonic power metal band from Buenos Aires, Argentina, featuring vocalist Gaston Lopez Gullen, keyboardist Luca Medina, and guitarists Gonzalo Albarracin and Sebastian Duarte. Their debut full-length "Víspera bélica" was released in November 2014, conceived as the first part of a concept trilogy in which each track represents a chapter in history. Vocals and guitars for the album were recorded at Luca Medina's private studio in Buenos Aires.