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.

Memphis sludge and alternative metal outfit Thundergun have been hauling the deep South's blues-inflected heaviness into distorted territory since 2014, blending the raw emotional directness of alternative metal with the punishing density of sludge.

Formed in Oregon in 2024, Thunderhorn deal in the murky overlap of stoner and sludge metal, building low-tuned, fuzz-soaked walls of sound rooted in the Pacific Northwest's long tradition of heavy, feedback-drenched music. Still in their earliest days, they carry the deliberate, crushing pace of sludge alongside the hazy groove of the stoner world.

Eau Claire, Wisconsin's Thunderlung operate in the ambitious space between sludge, post-metal, and progressive metal, constructing layered, slow-building compositions that reward patient listening. Founded in 2018, they bring an Upper Midwest sense of space and patience to music that can shift from suffocating heaviness to expansive, textural passages within a single track.