The Fathomless Deep is an avant-garde sludge/post-metal band from the Helsinki metropolitan area, formed in 2011. They push the boundaries of sludge and post-metal with avant-garde compositional approaches.

The Full Nelson from Copenhagen deliver sludge metal with the wrestling-hold intensity their grappling name demands since 2024. Their sound locks the listener in an inescapable grip of low-tuned heaviness from the Danish capital.

The Grudge is a southern/sludge metal band from London, active since 2016. Their music brings the swampy, low-tuned heaviness of southern sludge metal to the British capital, delivering crushing grooves and abrasive vocals.

The Malefic Grip is a sludge/doom metal band from Bristol, active since 2018. Their music channels the city's long history of heavy, experimental music through crushing sludge and doom riffs with a menacing atmosphere.

The Medea Project is a doom/gothic/sludge metal band from the east coast of England, active since 2017. Named after the tragic figure of Greek mythology, their music blends the weight of doom and sludge with the dark romanticism of gothic metal.

The Moth is a sludge metal band from Hamburg, Germany, formed in 2013. They deliver crushing, abrasive sludge metal from the Hanseatic city.

The Ocean formed in Berlin, Germany in 2000 under the direction of guitarist Robin Staps, evolving into a large collective of rotating musicians that produced sprawling, conceptually ambitious post-metal. The band's discography traces geological and philosophical themes across concept album series, most notably the Precambrian diptych (2007) and the Phanerozoic sequence (2018–2020), as well as the acclaimed Pelagial (2013), a single continuous piece representing a descent through ocean depths. Their own label, Pelagic Records, grew out of the project and became a significant home for progressive and post-metal acts. Holocene (2023) marked a further conceptual departure.

The Ocean Collective is a progressive/atmospheric sludge/post-metal band from Berlin, Germany, active since 2000 and released through Metal Blade Records. Their ambitious concept albums — "Precambrian," "Heliocentric/Anthropocentric," "Pelagial," and the "Phanerozoic" series — map geological epochs through expansive, intellectually ambitious post-metal.

The Owls from Orlová blend sludge metal's crushing weight with the atmospheric expansiveness of post-black metal, creating a dense, layered sound since 2010. Hailing from the industrial Silesian coal region of the Czech Republic, their music mirrors the heavy, overcast landscapes of northeastern Moravia.