Sorry for not being able to write in German, hope someone can help me with an answer anýways.

I need more tricks to get cities and their authoritys to like me all hints and tricks and shady tips will be apriciated

Peter Banck
auf Helsingborg
Schweden

Besides just waiting, there are only two ways to increase the company rating:

1. plant trees around the city (more than one tree per tile has no effect)
2. bribe the local authority (only with TTDPatch)

In case you understand German well enough, read this:
http://www.tt-ms.de/tipps/#vdob

I found what I needed thanks pal 8)