Subway is a restaurant franchise based in America, with its corporate office and headquarters in Milford Connecticut. Doctor's Associates, Inc. is the owner of this franchise with restaurants across ninety-eight countries. The company primarily sells salads and submarine sandwiches. The signature varieties offered by the restaurant chain include Subway Club, Roasted Chicken, Subway melt, Tuna, Italian B.M.T, Steak & Cheese, Chicken Teriyaki, etc. The company also offers English muffins, breakfast sandwiches, and flatbreads. The menu on offer at different locations depends on the region where the restaurant is located. It is also known for its use of nutritional content in its recipes.