Not an agency
No team between you and the work. You talk to the person who builds it.
The second name · On the poster
I work out of Cologne, and I am not the hero of this story. You are. I am the one sitting next to you when it gets tight, and the one who builds what you decided.

Part one · Why the mix matters
A developer does not understand your margin. Someone who only advises cannot build what he recommends, and finds out too late that it does not work.
I have done both. So in the same conversation you hear what something costs and whether it works at all. Not after the quote from an agency.
Part two · What I am not
No team between you and the work. You talk to the person who builds it.
The hard part comes after. That is exactly where most people are gone.
If your idea is the worst one on the list, you will hear it from me.
Credits · The start