Como creo que puede ser de utilidad, comparto parte de un mensaje de Leif Stensson en ks:
There are various fulfillment centres within the EU that offers this kind of repackaging service; one of the best big ones is the French company Philibert (
https://www.philibertnet.com/en/ ) which is a boardgame webshop but which also handles packaging and shipping for other companies and does it quite well.
If you end up with too small volumes to make Philibert a feasible option, there are a few gaming stores in various countries within the EU that sometimes perform this kind of service too for limited volumes. One such store is Alphaspel in Sweden (
http://www.alphaspel.se/ ). Possibly, they may also accept partial payment in the form of extra copies of the game.