McDonald's, Chipotle & Starbucks bank on this man By: CNBC.com News May 04, 2015 at 16:27 PM EDT First it was Starbucks, then Chipotle signed on with this on-demand delivery service. Could Postmates turn around the Golden Arches, too? Read More >> Related Stocks: Chipotle Mexican Grill McDonald's Corp Starbucks Corp