DoorDash, Inc. is an American company that operates an online food ordering and food delivery platform. It is located in San Francisco, California, USA. With a 56 percent market share, it is the largest food delivery company in the United States. In the convenient delivery category, it also holds a 60% market share. As of December 31, 2020, the platform was used by 450,000 merchants, 20 million consumers and 1 million deliverers.