The Spinoza Gesellschaft is dedicated to supporting both German language Spinoza research and the reintroduction of Spinoza into German culture.
http://www.spinoza-gesellschaft.de/
The publishing house was founded in 1727 when Sigmund Steinbart started a bookshop and printing business, ran by Gottlob Benjamin Fromman, in an orphanage in Züllichau (today Sulechów, Poland) [...]
http://www.frommann-holzboog.de/
Literature by and about Baruch Spinoza in the German National Library's catalogue.