Ignicion is a groove metal band from Valparaíso, Chile, whose sound combines heavy riffing with driving rhythmic propulsion. The band debuted with an EP in 2020 and released three singles in 2023, building a regional profile that included an opening slot for Brujería in Valparaíso alongside appearances alongside Chilean acts such as Nuclear and Siniestro.

Incurse is a death/groove metal band from Varginha, Minas Gerais, Brazil, formed in 2017. The band blends death, groove, progressive, and heavy metal influences, releasing the single "Tormented Scars" in May 2019 as a preview of their debut album Constant Violence.

Infested Co is a melodic death/groove metal band from Bogotá, Colombia, active since 2009. The band released their debut EP Treason Walls in 2014, a six-track record that blends melodic death metal riffing with groove-driven heaviness and lyrics touching on themes of hate and violence.

Inraza is a groove metal and metalcore band from São Paulo, Brazil, founded in 2018 by veterans of the city's underground scene, with a lineup including vocalist Stephany Nusch and guitarist Gabriel Colonna. Drawing on influences such as Lamb of God, Fear Factory, and Sepultura, the band blends contemporary heaviness with melodic passages and socially engaged lyrics. Their debut album Infection was released in November 2020, followed by further studio work including (Still) Stuck and Sociexit.

Insânia is a thrash and groove metal band from Recife, Pernambuco, Brazil, whose blunt, Portuguese-language lyrics engage directly with Brazilian society and politics. The band released a self-titled debut in 2019 to regional acclaim and followed it with the full-length Histeria in March 2021, delivering a tighter and more aggressive sound. They subsequently released the single "Dry," their first English-language track, exclusively through Chaoszine, with the lineup featuring Diogo Felipe on vocals, Raffa Farias on guitar, André Cabral on bass, and Vitor Lima on drums.

Iridio is a groove metal band from Arroyo Cabral, Córdoba, formed in 2012, featuring vocalist Gastón Ceballos, guitarist Matías Morelli, bassist Damián Andrés, and drummer Ale Pereyra. Their debut album 'A paso firme' — recorded at AV studios and engineered by Matías Tacaya — contains 12 original compositions, and the band made an early mark on the national scene by performing at Metal para Todos 6 in 2013 at Malvinas Argentinas stadium in Buenos Aires, one of Argentina's largest metal festivals.

Ithaca is a heavy/groove metal trio from Buenos Aires, formed in 2020 during the pandemic lockdown, comprising Chino Gorosito (guitar/vocals/piano), Marcelo Bracalente (bass), and Pato Strunz (drums), the latter a veteran of iconic Argentine bands Hermética and Malón. The band is signed to Icarus Music and released their debut album "El Peso Que No Pesa" in September 2024, preceded by three singles — "El Sol Sin Ser," "Susurrando en Tu Mañana," and the title track — released monthly through the northern summer of 2024. The album was recorded at La Nave de Oseberg studio in Buenos Aires with engineer Martín Toledo.

Kala Sumeriah is a stoner/groove metal band from Mendoza, Argentina, featuring vocalist Gus Banco Pravata, guitarist Edu Palladino, bassist Martin Fumarola, and drummer Alvaro Garcia Bensi. Their fourth studio album, Wormoboros, was released on April 27, 2022, produced by the band and recorded at The Arrival Studio.

Kariwa is a groove metal band from Bogotá, Colombia, formed in 2013 with a lineup that has included members of Goretrade and Luciferian. The band released two full-lengths — "10.000 años" (2016) and "No creo que a dios le importe" (2018) — and appeared on the True Metal Subversion 8 compilation.