I'am sorry but I don't know very well what the Yoseikan Aikido is. The few, I saw on this martial art in France is that it is known as Yoseikan Budo
and not Yoseikan Aikido. There are some Yoseikan Budo clubs in France and it seems that they are affiliated with the Karate federation.
I never hear about Yoseikan in my Aikido Federation or in the other official federation. But there are in France some little Aikido groups not recognized by the French sport minister (because they aren't affiliated with one of the recognized federations) and so there is certainly a Yoseikan Aikido club in France but I don't know more about, sorry.