Josef Maria Klumb (born 1962 in Bingen am Rhein) is a German musician who has been a member of a number of punk rock, industrial, and darkwave bands in the "dark culture".
Klumb founded the punk-rock band Aus-98 in the early 1980s, which fairly quickly morphed into Circle of Sig-Tiu.
By the mid-1980s, Circle of Sig-Tiu began incorporating gothic rock and darkwave aspects; the band broke up in 1988.
In 1995, Klumb, along with his brother Burn (also from Forthcoming Fire) formed Von Thronstahl, a martial industrial group.
Later Burn would leave the group and instead former Circle of Sig-Tiu bandmate Raymond P., Marcel P., and Rene joined.