CampusTours is an American virtual college travel and college travel website and the largest virtual and video travel service provider. It was founded by Christopher Carson in 1997; in 2001, the website began to create multimedia college travel and interactive tours. campus map, simulated campus tours, online camcorders, and college short film activities.

Choice Hotels International is a world-renowned hotel group. It was founded in 1939 and is headquartered in Silver Spring, Maryland. It owns Clarion, Comfort Inn, Comfort Suites, Quality, Cambria Suites, Sleep Inn, and Mainstay. Eleven series of internationally renowned hotel brands, including Suites, Suburban, Econolodge, Rodeway Inn, and Ascend Collection, can meet different levels of consumer needs.

Marriott International is a multinational hotel management group listed on the New York Stock Exchange. It was founded in 1927 and is headquartered in Washington, USA. Marriott International's brands include Marriott Hotels, JW Marriott, Ritz-Carlton, Courtyard, etc., with nearly 4,000 hotels in more than 70 countries and regions around the world. The official website of Marriott Hotels Group provides online room booking function.

Carnival Cruise Lines is one of the world's largest super luxury cruise companies, known as the "King of Cruises". It was established in 1972 and is headquartered in Miami, Florida. Its main competitor is Star Cruises . Carnival Cruise Line owns Princess Cruises, Cunard Line (its predecessor, White Star Cruises, owned the Titanic), Costa Cruise Line, Holland America, Seabourne Famous cruise brands such as Cruise Lines and Windsong Cruises. In addition, Carnival Cruise Line has the reputation of "the most popular cruise ship in the world".

Carlson Hospitality Worldwide is the world's top hotel group and one of the largest private companies in the United States. The group operates more than 1,700 hotels, resorts, restaurants and cruise ships around the world, and owns many famous brands, such as Radisson BLU, Radisson, Park Plaza, Country Inns & Suites and Park Inn, etc. Regent is the top brand of Carlson Hotel Group. There are only two hotels in China, located in Beijing and Taipei respectively.