Moreno Valley, California's Trapped Within Burning Machinery have been churning out slow, suffocating doom and sludge metal since 2009, combining crushing low-end weight with the caustic edge their name implies.

Colorado Springs outfit blending death metal brutality, sludge's tar-thick low end, and grindcore's blunt violence into a dense, punishing whole since 2019. One of the heavier acts to emerge from the Colorado Springs scene.

Santa Cruz, California doom and sludge trio that has been cultivating slow, toxic heaviness since 2017, combining the crushing weight of doom with stoner haze and sludge's abrasive edge. Their Bandcamp handle hints at a UK-influenced atmosphere despite their West Coast roots.

World War Metal from Austin featuring members of Imprecation and Morbosidad. Debut full-length Commandoccult released 2022 on Godz Ov War Productions.

Indianapolis quartet Trenches emerged in 2021 fusing the punishing low-end of sludge metal with the structured aggression of metalcore, a combination that feels at home in the Midwest underground. Their Bandcamp handle "digtrenches" signals an ethos of burrowing deep into the heavy.

Trilobite is a sludge metal band from Palm Beach, Florida, formed in 2011, channeling the thick, feedback-laden aggression of Southern sludge metal into a dense and abrasive sound.

Tripping the Mechanism is a doom/sludge metal band from North Charleston, South Carolina, formed in 2013, combining lumbering tempos, corrosive guitar tones, and a desolate Southern heaviness.

Triton is a sludge/death metal band from Fort Collins, Colorado, formed in 2023, merging the slow, grinding weight of sludge metal with death metal's darkness and brutality.

True Illusion is a Hutchinson, Kansas band formed in 2020 that blends melodic groove metal, thrash, and metalcore influences into a driving, riff-centered sound.

Sludge metal band from Lansdale, Pennsylvania, formed in 2014, built on slow, crushing riffs and the corrosive sonic weight characteristic of the genre.

Boston, Massachusetts sludge metal band formed in 2021, dredging up slow, feedback-drenched riffs and oppressive heaviness in the manner of the Northeast's underground heavy music scene.

Portland, Oregon psychedelic doom/sludge metal band active since 2012, layering crushing low-end weight with hazy, hallucinatory atmospheres in the Pacific Northwest tradition of slow and heavy music.

Tung is a sludge metal band from Ventura, California, formed in 2019, delivering slow-grinding heaviness rooted in the coastally-tinged Southern California underground scene.

please update this band

Tunnell is a Columbus, Ohio sludge and stoner metal band formed in 2021, combining fuzz-drenched riffs with the grit and drag of sludge to create a dense, oppressive sonic presence.