Italian experimental power electronics project formed by Andrea Chiaravalli with the assistance of Paolo Bandera and Eraldo Bernocchi. Many of the early recordings were heavily influenced by thrash and speed metal. Since 1994 the project has primarily been just Andrea with the assistance of Paolo Bandera, verging more closely on noise oriented territories. After a period of inactivity started in 1999, 2012 has seen a new track appearing on a compilation, while recording has been completed for new albums and live appearances have started again.
Iugula-Thor has often been closely tied with Sigillum S, as Andrea Chiaravalli has often assisted that project in the studio and live, especially during the late 1980s and early 1990s.