Named for the fearsome medieval Gaelic-Norse mercenary warriors, Texas's Gallóglaigh arrived in 2025 with a black metal ferocity that lives up to the legacy. Still in their earliest chapter, they signal ambition in both name and sound.

Boston's Gamaliel tear through black and speed metal with a reckless, fire-and-brimstone energy that fits the city's long history of aggressive underground acts. Since 2016 they've been among the more ferocious presences in the Massachusetts extreme metal scene.

New Jersey's Gangr emerged in 2023 with a stark black metal approach that favors atmosphere and malevolence over accessibility. Still early in their existence, they carry the project-style intensity common to the current US black metal underground.

Named for the King of Evil himself, Escondido, California's Gannondorf have been playing raw, uncompromising black metal since 2010 with the single-minded ferocity their namesake would demand. Over a decade into their existence, they remain a committed presence in the Southern California underground.

Hailing from Normal, Illinois, Garg deals in raw, no-frills black metal that embraces the underground's most primitive and unpolished instincts. Formed in 2022, they work in the stripped-back style that prioritizes atmosphere through harshness over any kind of technical refinement.

Connecticut's Gargamel marries symphonic grandeur to black metal extremity, building elaborate, orchestral arrangements atop a still-venomous core. The project has been active since 2010, amassing a catalog that tilts theatrical without abandoning its harder impulses.

Springfield, Illinois outfit Gargantuan merges the atmosphere of black metal with the pummeling density of death metal into a sound that's as expansive as its name implies. Since 2019 they've built a reputation in the Illinois underground for uncompromising extremity.

Elizabeth, New Jersey thrash act Gargoyle channels the caustic energy of classic speed and thrash metal into a punishing and direct style. Formed in 2021, they keep the attack sharp and the tempo aggressive.

Named for the hound that guards the gates of Hel in Norse mythology, Milford, Connecticut's Garm pursues a raw and cold black metal sound with appropriately grim intent. Active since 2021, the project carries its mythological namesake seriously.