DoorDash

DoorDash Inc. is an American on-demand prepared food delivery service. founded by Stanford students Tony Xu, Stanley Tang, Andy Fang and Evan Moore. It is one of several technology companies. It uses logistics services to offer food deliveries from restaurants on-demand. DoorDash launched in Palo Alto and, as of May 2019, had expanded to more than 4,000 cities and offers a selection of 340,000 stores across the United States, Canada and Australia. 
It is expected to launch an IPO in 2020, the company is currently worth close to $16 billion and is the largest third-party delivery service in the U.S., surpassing Grubhub in 2019.
Restaurants delivered by DoorDash include Long John Silver's, Taco Bell and Chick-fil-A.