Mos Food Services, Inc. operates MOS BURGER hamburger franchises and other food service businesses in Japan and internationally. The company operates MOS CAFÉ outlets, which offer drinks, sweets, and alcoholic beverages; and Mother Leaf specialty black tea stores, which provide fresh black tea, sweets, pasta-based or other meals, coffees, handmade sweets. It also operates Mother Leaf Tea Style, a cafe that offers novel black tea-inspired products; MOSDO! stores; and restaurants under the chef's V, GREEN GRILL, and AEN brands. The company was founded in 1972 and is headquartered in Tokyo, Japan.