Marriott International, Inc. is an American multinational diversified hospitality company that manages and franchises a broad portfolio of hotels and related lodging facilities. Founded by J. Willard Marriott, the company is now led by his son, executive chairman Bill Marriott, and president and chief executive officer Arne Sorenson. Marriott International is the largest hotel chain in the world. 

It has 30 brands with 7,003 properties in 131 countries and territories around the world. It is headquartered in Bethesda, Maryland, in the Washington, D.C. metropolitan area.

Marriott International was formed in 1993 when the Marriott Corporation split into two companies, Marriott International and Host Marriott Corporation. In 1995, Marriott was the first hotel company worldwide to offer guests the option to book reservations online, via the company's implementation of MARSHA (Marriott's Automatic Reservation System for Hotel Accommodations).

According to en.wikipedia