TravelCenters of America LLC is the largest publicly traded full-service travel center company in the United States. The company operates full service centers, convenience stores, and restaurants under the TravelCenters of America, TA, Petro, Petro Stopping Centers, Minit Mart, and Quaker Steak & Lube brands. TravelCenters of America is headquartered in Westlake, Ohio, operates in 43 U.S. states and 1 Canadian province, and employs more than 20,000 people, as of 2018.