Burznazg Productions
Burznazg = Black Ring or Black Circle, according to Varg Vikernes.
The label has apparently changed ownership several times since 1993; started by Varg Vikernes in 1993 who later abandoned this name in favor of Cymophane; continued by Wolf Möbus and Stephan "Brandolf" Guba after 1996 when Vikernes conceded the rights on "Burznazg" to Hendrik "JFN" Möbus while both of them were imprisoned for murder; just to be abandoned again in the early 2000's and to be picked up by an undisclosed entity in 2011.
The label has apparently changed ownership several times since 1993; started by Varg Vikernes in 1993 who later abandoned this name in favor of Cymophane; continued by Wolf Möbus and Stephan "Brandolf" Guba after 1996 when Vikernes conceded the rights on "Burznazg" to Hendrik "JFN" Möbus while both of them were imprisoned for murder; just to be abandoned again in the early 2000's and to be picked up by an undisclosed entity in 2011.