Hawkmoonmor is a epic/atmospheric black metal band from Odesa, Ukraine, formed in 1999. They craft expansive, atmospheric black metal compositions with textural depth.

Formed in London in November 1969, Hawkwind are among the earliest and most influential space rock bands, fusing psychedelic rock, proto-punk energy, and science fiction mythology into an immersive live experience built on synthesizers, tape loops, and electronic noise. Their 1971 album In Search of Space was a landmark critical success, while the 1972 single 'Silver Machine' — recorded during the tenure of bassist Lemmy Kilmister — reached number one in the UK. With more than two dozen studio albums across six decades and Dave Brock as their sole continuous member, Hawkwind remain an active and foundational force in heavy psychedelic music.

Hawthorn is a melodic death/thrash metal band from Ciechanów, Poland, formed in 2012. They forge aggressive extreme metal at the crossroads of death and thrash.

Haxan is a death metal band from France, active since 2020 and delivering uncompromising extremity through crushing riffs and guttural vocals. The project channels the relentless brutality of the genre.

Symphonic black/doom metal act from Innsbruck, Austria, formed in 2020. Their debut album Invocation, recorded at Village Road Studios and mastered at Kalthallen Studios, delivers eight tracks of blackened doom steeped in pagan themes across a weighty forty-one minutes.

Sludge metal/hardcore band from Osnabruck, Germany, active since 2014. Their crushing, feedback-drenched sound merges the visceral weight of sludge metal with hardcore punk intensity.

Hazael is a death metal (early/later); doom/gothic metal (mid) band from Płock, Poland, formed in 2020. They craft crushing doom-death compositions steeped in oppressive heaviness.

Hazarder is a doom/sludge metal band from Zagreb (early); Barcelona, Croatia, formed in 2013. They channel crushing sludge-doom through abrasive riffs and oppressive weight.

Haze of Summer is a melodic black/post-metal band from Podolsk, Russia, formed in 2017. They craft atmospheric melodic black metal with sweeping melodies and emotional depth.