[inglondon]

Through a separate list I found a couple of companies: http://www.spielkarten.com/ http://philos.quasarshop.de/Home.asp?Lang=D http://www.dalnegro.com/ (Italian company)

I have never dealt with playing cards specifically so I cannot give concrete advice on this market but as with most products that I have had to source, I have found that most people are very helpful if you either write to them or pick up the phone and call and ask for advice. Since the playing cards market is not that big I am sure that companies are more than willing to give advice to entrants to this specific field.