Kompagnistræde 12 is a Neoclassical property situated on the shopping street Strædet, between Badstuestræde and Knabrostræde, in the Old Town of Copenhagen, Denmark. Like most of the other buildings in the area, it was constructed as part of the rebuilding of the city following the Copenhagen Fire of 1795. The building was listed in the Danish registry of protected buildings and places in 1964. C. E. Fritzsche, a glass shop with roots dating back to 1788, is now based in the building.