The companies filed separate complaints in New York state court claiming the law, which takes effect next week, is based on a misunderstanding of how the food delivery industry works.
Relay Delivery Inc also filed a lawsuit in the same court claiming the law will put the New York-based company out of business unless it raises the fees it charges to restaurants.
Grubhub Inc joined DoorDash in its lawsuit.
The law will require that drivers be paid $17.96 an hour, which will rise to nearly $20 in April 2025. Companies can decide whether to pay drivers hourly or per delivery.