I like #168. Please use for the whole polygone the dark blue. Chance "BCF" and "Bauchemie Forchheim" like #103. Change "Die Abdicher und Sanierer" like #46. Delete the ®.
I'm sorry for this back and forth but I like the font style in #103 more than that in #190. It's a little less bold and looks more elegantly. Use the same font without serifes for the polygone as in the slogan.