Custom frames

@ german marc, if you have ideas about what your looking for, maybe you could share with us and then we could give you an informed and coherent response, no price range, no material preference, no idea what you want to use the bike for, what sort of response would you expect. If you have frame builders in mind, have a search for them on here and take it from there, more than likely they will have been spoken about, mentioned, discussed and you can get some sense of what people think about them.
On this forum search is and always will be your friend, do a bit of the leg work and we'll help you with the rest....

Repped for delivering common sense, coupled with practical advice!