Daemonizer is a progressive metal band from Siegen, Germany, formed in 2018. They explore complex arrangements and technical musicianship within a heavy progressive framework.

Daevidius plays progressive metal and rock from Bromolla in Skane, active since 2016. Their Latinized personal-name format signals a solo vision of technically accomplished, cerebral compositions from southern Sweden.

Dageraad is a two-piece blackened progressive sludge outfit from Leuven, Belgium, formed within the fertile tradition of Belgian post-metal that has produced internationally recognized acts on labels like Consouling Sounds. Their debut EP In Bloed, released in late 2024, marks the project's first formal recorded statement.

Dahlian is a progressive black metal band from Mainz, Germany, active since 2013. Their music blends aggressive metal with ambient and acoustic passages, featuring introspective lyrics that explore identity and existential themes across releases like "Moonlit."

Dakaraius is a progressive/heavy metal band from Bristol, England, formed in 2015. They deliver ambitious progressive metal from the West Country.

Dakesis is a progressive/power metal band from Birmingham, active since 2009 and emerging from the same city that gave birth to heavy metal itself. Their compositions blend the technical ambition of progressive metal with power metal's soaring melodies, creating an accessible yet sophisticated sound rooted in Birmingham's legendary metal heritage.

Dale is a progressive metal band from Tromso in Arctic Norway, active since 2000 and crafting complex compositions under the northern lights. Their quarter-century career from above the Arctic Circle makes them one of the northernmost progressive metal acts in the world.

Dallian plays a hybrid of progressive, symphonic, and death metal from Leiria in central Portugal, active since 2018. Their multi-genre approach layers orchestral grandeur and progressive complexity over a death metal foundation, creating ambitious compositions of considerable scope.

Damim is a progressive black/death metal band from London, England, active since 2005. With two decades of history, they push extreme metal into cerebral progressive territory.