OpenTable is an online restaurant-reservation service company. It provides online reservations at about 54,000 restaurants around the world seating some 30 million diners monthly. The company was founded in San Francisco, California in 1998. Reservations are free to end users; the company charges restaurants monthly and per-reservation fees for their use of the system. In addition to online reservations, OpenTable offers restaurant management software for table management, guest management, and reservation management. OpenTable went public on the NASDAQ in 2009, and in 2014 it was acquired by Priceline Group for $2.6 billion.