Sinistro formed in Lisbon, Portugal in 2011, initially releasing an instrumental debut before integrating the distinctive voice of vocalist Patrícia Andrade, which became the defining element of the band's atmospheric doom and post-metal sound. After signing to Season of Mist, the band released Semente (2016) and Sangue Cássia (2018), earning praise from peers including Paradise Lost and Cult of Luna and appearances at Roadburn Festival. Their fourth full-length Vértice arrived in 2024 via Alma Mater Records. Sinistro are widely considered one of Portugal's most important metal exports, with Andrade's vocal presence lifting their work beyond genre convention.

Somali Yacht Club formed in Lviv, Ukraine in 2010 as a jam-oriented trio before developing into one of Eastern Europe's most celebrated stoner and psychedelic rock acts. Their debut EP Sandsongs (2011) was followed by full-lengths The Sun (2014) and The Sea (2018), each deepening the band's layered approach to hypnotic, riff-driven post-rock and stoner metal. The Space (2022), released through Season of Mist, broadened their international reach significantly. Working from Lviv throughout the Russian invasion of Ukraine, the band continued to record and tour, making their persistence under extraordinary circumstances as notable as their music.

Atmospheric doom/death/post-metal project from Flanders, formed in 2022, whose name references the River Styx of Greek mythology. Their multi-genre approach creates expansive, emotionally weighted compositions that draw from the heaviest and most atmospheric corners of extreme metal.

Atmospheric post-metal band from Sint-Niklaas in East Flanders, active since 2013, crafting expansive, dynamic compositions that build from quiet introspection to crushing heaviness. Their decade-long presence reflects a sustained commitment to the atmospheric end of the metal spectrum.

Sunniva blend doom, sludge, and post-metal from Turku, building expansive, heavy compositions named after the medieval Norwegian saint. Active since 2017, they bring hagiographic weight to the southwestern Finnish scene.

Sunstead craft atmospheric post-metal from Dortmund, building expansive, layered compositions that evoke celestial permanence. Formed in 2024, they bring solar-themed ambience to the Ruhr Valley's growing post-metal landscape.

Surema channel sludge and post-metal from the northern Finnish city of Oulu, building expansive, heavy compositions from the Arctic-adjacent landscape. Formed in 2020, they bring Estonian-named dying to the Ostrobothnia scene.

Bristol's Svalbard formed in 2011, building a body of work that fuses blackened post-hardcore, post-metal, crust punk, and shoegaze into a politically charged and emotionally confrontational sound. Co-led by guitarists and vocalists Serena Cherry and Liam Phelan, the band released four albums — including When I Die, Will I Get Better? (2020) and The Weight of the Mask (2023) on Nuclear Blast — before announcing their disbandment in 2025 following a farewell tour. Their final single 'If We Could Still Be Saved' appeared in November 2025.

Salzburg-based sludge/post-metal act formed in 2022, with releases including "Exitus Triumphalis" and "The Ardent Weight Of Thoughts" that explore crushing heaviness and atmospheric depth. Their sound bridges the physical weight of sludge metal with the expansive dynamics of post-metal.