The # actually produced in the U.S. is pretty low, LibTech is really the only major one, then you have moment, on3p, etc. A couple board companies too.
wrong thread? I believe this info is actually on sia's website in one of the available documents. let me do a quick search and I'll get back to you. I look at my market intel report and didn't see those stats.
The market is split by Chain, Specialty, and Internet retailers. On page 20 it will tell you the sample size and how they created the report, I think it will give you some of the info you are looking for.
These are excellent reports to use for school. I used them all the time for paper's and project during undergrad and grad school.
They are free to everyone too, taken right off of www.snowsports.org. Hope this helps.