obviously you won't find the info about the smaller ski companies, but the larger ones will post their revenue. although, these larger companies almost all have outerwear and boots, bindings, etc etc so it's not just ski revenue.
but for example
Atomic's revenue was 1.533 billion Euro in 2009. pretty ridiculous.
Yea the Atomic one is off. That was the Amer Sports revenue for 2009. My bad. Their total revenue was 1.88 billion Euro in 2011 though. Winter and sports category is 1.14 billion euro.
But from what I can gather, ~15-20% of Amer Sports revenue is from Atomic. Which means 280-375 million Euro. So ~360-490 million USD. This was 2011.
~360-500 million USD is still a significant revenue though.