Most of the hotel companies have some. I've done a few for Coyle in the past, another for a company that has some Utah properties, and a high-end Park City hotel that requires skiing for the assignment.
Sadly I'm a snowboarder and agreed to that assignment before I realized that snowboards are not allowed at that particular resort. The resort outside of Park City that gives you free lift tickets with the hotel stay is probably the best shop. It has great food and usually offers a 3-night stay.
You will need a good reputation with any company to get the ski resorts, though.