Awake the Mighty Dragon is an epic black/doom metal band from Uberlândia, Minas Gerais, Brazil, with roots stretching back to 1998 before a reunion in 2017. Their 2020 compilation Lord of Oblivion collects their 1999 demo The Original Sin alongside material recorded between 2017 and 2019, showcasing a sound that blends raw black metal atmosphere with lengthy, doom-laden compositions and occultist lyrical themes.

Away from the Sun is a modern metalcore band from Curitiba, Paraná, Brazil, formed in 2020. Blending melodic death metal with contemporary metalcore, the band weaves themes of psychoanalytic archetypes, philosophy, and misanthropy throughout their releases, including the albums Unity and Anima. Their sound draws on the melodic Gothenburg tradition while incorporating the rhythmic aggression of modern metalcore.

Axecuter is a speed/thrash metal band from Curitiba, Paraná, Brazil, formed around 2010–2013 and signed to Sangue Frio Produções. Devoted to early 1980s metal worship with zero concession to modern trends, they deal in grinding buzzsaw riffs and breakneck tempos, releasing albums such as Metal Is Invincible, Headbangers Afterlife, and A Night of Axecution, and have appeared on Brazilian tribute compilations including a Sabbat tribute.

Axia was a heavy metal band from Campinas, São Paulo, Brazil, formed in 2018 and active until their split. Playing straightforward traditional heavy metal in the Brazilian underground mold, the band recorded and released material before disbanding.

Axsem is a brutal death metal band from Viedma, Río Negro, founded and led by guitarist, vocalist, and producer Matías Carrasco, who has also organized eleven consecutive editions of the Extremo Fest in the city. Their fourth album, "Altar de la tortura" (2023, Putrid Productions), draws its concept from medieval torture methods and the Inquisition, following earlier releases including "Capítulos de Siniestro Tragedia" (2016).

AXTY is a metalcore and nu-metalcore band from São Paulo, Brazil, formed in 2016 by vocalist Felipe Hervoso as a solo project originally named Anxiety, later expanding into a full quartet with guitarist Felipi Grivol, bassist Jonathas Peschiera, and drummer Gabriel Vacari. Their music draws on contemporary metalcore acts such as Architects and Bring Me the Horizon, incorporating electronic elements and alternating between harsh screams and clean vocals. Their 2024 album Hannya spans nu-metalcore, post-hardcore, and electronic territory, with lyrics centered on mental health and personal resilience.

Ayat Akrass is a death metal/hardcore band from Curitiba, Paraná, Brazil. The band blends the aggression of hardcore punk with death metal heaviness, with lyrical themes centering on equality, capitalism, and political resistance. Their 2003 demo "Quando o Preço da Glória é Pago com Sangue" (When the Price of Glory is Paid with Blood) was released jointly through the Shades Before Dawn and L-Dopa labels.

Ayax is a power metal band from Buenos Aires, Argentina whose lineup has included vocalist Nicolas Cabrera, guitarists Gustavo Dhaini and Martin Oviedo, bassist Oscar Pedini, keyboardist Pablo Marciello, and drummer Gustavo Nemitz. The band has been active in the Argentine power metal scene and released an early EP in 2005.

Aygan is a progressive metal band from São Paulo, Brazil, formed around 2001 and active into the 2010s. Their sound blends heavy riffing, groove, and progressive rock complexity, landing somewhere between melodic hard rock and progressive metal. The band released the full-length album "Plastic City" in 2010 — recorded at Mr. Som Studios in São Paulo and premiered live at the Fúria Festival on a bill that included Sepultura and André Matos.