I do know this. When I looked everyhere, and I mean EVERY WHERE, There were only two vendors/sites that I could find for the United States that You could buy them. That's the sites mentioned above. I'm sure there are more, but probably not having the variety that these two do.
Pikevi, isn't it fascinating on how it's done? So easy too. You can see the technique and how it's done on
New World Orchids
Kmarch: I would definitely consider them the experts here in the U.S. I got to talk to one of them for quite a while over the phone. Very fascinating. He goes to Japan personally 2-3 times a year for orders on Neos ! Even though he also has them growing in GH. How awesome is that?