Agonia is a death/thrash metal band from Los Angeles with an extraordinarily prolific output — fourteen releases since 2024 alone. The project's relentless pace includes multiple full-lengths, EPs, and singles that suggest either a deep well of material or a one-person creative torrent.

Agony Forge is a thrash/power metal and melodic death metal band from Madison, Wisconsin. Their 2021 EP "The Sleepy Sessions" offers a brief but energetic glimpse of the band's genre-crossing approach.

Agony Reigns is a thrash metal and metalcore band from the Minneapolis/Saint Paul area of Minnesota. Their 2017 "Powerhouse Demo" captures the raw early energy of a Twin Cities crossover act.

Agressor is a heavy and power metal band from New York City. With four releases between 2018 and 2021 — including the full-lengths "Medieval Rites" and "Neverending Destiny" — the band plays classic-styled power metal with an epic, medieval flair.

Agrezor is a thrash metal band from Los Angeles. Their 2023 output includes the EP "Death to Earth" alongside a reissued 2008 demo, connecting the band's present-day thrash to over a decade of underground activity.

Chicago thrash metal project. The name promises aerial bombardment through Windy City speed metal.

Akasha is a melodic heavy metal and hard rock band originally from Brownsville, Texas, now based in Memphis, Tennessee. With five releases in 2024-2025 alone — including the Spanish-language EP "Huellas" and single "Santa Cecilia" — the band bridges Latin American musical identity with classic heavy metal.

Tuba City, Arizona black/thrash metal project from the Navajo Nation. One of the few metal acts from indigenous reservation land.

Akrasia is a black metal band from Salem, Massachusetts — a city whose witchcraft history makes it a fitting home for extreme metal. With eleven releases spanning 2011 to 2026, the project has been a prolific and enduring presence in the New England black metal underground.