Hammerheart Records

Hammerheart Records is a record label founded in 1994, working in heavy metal. The name has long been associated with the tougher, darker end of the genre, and the catalogue sample here points to that continuing interest, with releases by artists such as Castle.

That gives you the shape of the label: metal-focused, established in the mid-90s, and still active enough to connect newer records with a longer-running identity. With only limited catalogue evidence supplied, the clearest thing to say is also the most useful: Hammerheart Records is a specialist metal label with roots going back three decades.