Baltimore's Thought Eater formed in 2018 and plays the kind of slow, oppressive doom/sludge metal that suits the city's gritty industrial character. Rooted in the mid-Atlantic heavy underground, they favor churning, feedback-soaked heaviness over speed or flash.

Phoenix's Thra formed in 2019 and occupies a brutally claustrophobic corner of extreme metal where blackened sludge, death metal, and black metal collide under the Arizona desert heat. The result is dense, punishing, and unrelenting — music that reflects the scorched harshness of the Southwest landscape.

Fort Wayne, Indiana outfit formed in 2018 who draw from the deep well of stoner, doom, and sludge metal, building songs around heavy, slow-rolling riffs and oppressive atmospheres that reward patience and reward volume.

Tallahassee, Florida's Threshing occupy the slow, suffocating overlap between sludge, doom, and post-metal, constructing oppressive walls of distortion that sag under their own weight — a sound shaped as much by Southern heat as by heaviness.

Austin, Texas's Throat Piss emerged in 2023 with a deliberately confrontational name and a sound to match — experimental sludge metal colliding with hardcore punk in unpredictable, abrasive bursts drawn from the city's noise-tolerant DIY scene.

Birmingham, Alabama's Throng of Shoggoths take their Lovecraftian name seriously, conjuring thick, malevolent death-doom and sludge from the deep South since 2015. They merge the oppressive low-end rumble of sludge with death metal's abrasive attack, fitting naturally into Birmingham's storied tradition of heavy, regionally-specific extreme music.

New Jersey's Thrown to the Hole and Eaten by Rats arrived in 2025 with a name as uncompromising as their sound, fusing the ugliness of sludge metal with the confrontational energy of hardcore into something deliberately abrasive.

Richmond, Virginia's Thunderchief have been working the doom-sludge axis since 2015, their music heavy with the kind of mid-paced, feedback-drenched menace that the region's underground consistently produces with little fanfare and considerable force.

Gainesville, Florida's Thunderclap have been delivering doom-soaked sludge metal since 2014, their music carrying the oppressive heat and heaviness that seems to seep naturally out of Florida's fringes into some of the country's most unrelenting heavy music.