Founded by Conrad Hilton in 1919, Hilton Worldwide Holdings, Inc. is an American global hospitality company that manages and franchises a broad portfolio of hotels and resorts. As of January 2016, Hilton Worldwide's portfolio includes 4610 hotels with over 758502 rooms. In January 2016, the opening of the Hilton in Chad marked the 100th country Hilton resides in, thus making the corporation the largest hotel chain in the world by rooms and international presence.