7 North, Glady's, The Original Ramen Burger, and Cemitas el Tigre participate.

The company declined to say how many restaurants are using the service but mentioned that popular spots like Mighty Quinn's, No. Users won't be able to tell if their favorite restaurants are participating - they're listed just like any other restaurant is, Glading says. It only hit New York in the last few months and started with Brooklyn and Queens. Seamless has been nationally testing the program, called 'turnkey delivery service,' since 2014. And in a bid to put even more restaurants on the site, they're primarily targeting restaurants that previously did not offer delivery, she says.

But now, Seamless has its own driver network, too, according to company spokeswoman Sandra Glading. Most restaurants listed on Seamless employ their own delivery people, while newcomers to the market like UberEats and Postmates run their own network of food messengers.

In the ongoing battle for New Yorker's delivery dollars, the Seamless/GrubHub conglomerate has been quietly using its own delivery people in New York for the past few months.

Seamless sign up driver