Two third-party delivery services have launched a partnership with major brands.

DoorDash is moving further into grocery delivery with a new partnership with Walmart in the Atlanta market. “You can use the term ‘white label,’ but our drivers still will often wear the DoorDash shirt and have the DoorDash bag,” COO Christopher Payne said in an interview with Tech Crunch. However, if consumers go onto, and order from Walmart in Atlanta, they’ll have no idea its being delivered by DoorDash.

Meanwhile, Postmates is teaming up with San Diego-based Jack in the Box to bring on-demand delivery of the hamburger chain’s entire menu to Postmates’ customers. Delivery is now available from more than 1,000 restaurants in 28 of Postmates’ U.S. markets.To celebrate the partnership’s launch, Postmates offered a limited promotion where customers received free Jumbo Jack burgers if they recruited others to try delivery via Postmates. The company also offered limited-time free delivery.

In the interview with Tech Crunch, Payne suggested this new partnership could be an example of its desires to become a delivery option for other businesses.