those are not their sponsors... For Rage, Ski films are their side job pretty much. They do lots of marketing and advertising work. Porsche, Harley Davidson, Nike Bags amongst the other companies in that REEL appear to be some of their past clients.
And thats how you really make money in the film industry. Sick stuff.
Oh and for everyone that thinks Rage is "dead," Im pretty sure Sky is still doing all of this commercial stuff (and maybe mtn bike videos too if i remember correctly), so they might be back into skiing by next season or at a later time. Im not positive on any of that though.