- 2002 Schnauzerfest Information The Working Schnauzer Federation (WSF) is an organization dedicated to the preservation and betterment of the Giant Schnauzer (Riesenschnauzer) in America and throughout the world. The WSF was organized in 1991 and since then has held annual events which include a schutzhund trial, conformation show and other activities appropriate to the breed. This organization ...www.workingschnauzerfederation.com