https://en.wikipedia.org/wiki/Hyatt

The original owners were entrepreneurs Hyatt Robert von Dehn and Jack Dyer Crouch; after a few years, 
Von Dehn sold his share in the hotel to entrepreneur Jay Pritzker. Jay's younger brother Donald Pritzker 
also took on an important role in the company.

Over the following decade, acquisitions were made, and Hyatt became the fastest-growing hotel chain in 
the United States. Donald died in 1972; Jay continued to run the company.

In 1969, Hyatt opened its first hotel outside the United States, the Hyatt Regency Hong Kong. In 1980 
the Grand Hyatt and Park Hyatt brands were introduced. Hyatt runs resort hotels, starting with the 
Hyatt Regency Maui in 1980. As of 2012 Hyatt had over 490 hotels worldwide.

In 1972 Hyatt formed Elsinore Corporation, a subsidiary to operate the Four Queens Hotel and Casino 
and the Hyatt Lake Tahoe. After Hyatt became a private company in 1979, Elsinore was spun off as a 
public company. The company opened the Playboy Hotel and Casino as a joint venture with Playboy 
Enterprises.

In June 2004, substantially all of the hospitality assets owned by Pritzker family business interests, 
including Hyatt Corporation and Hyatt International Corporation, were consolidated under a single entity 
called Global Hyatt Corporation. On June 30, 2009, Global Hyatt Corporation changed its name to Hyatt 
Hotels Corporation.

In December 2004 Hyatt Hotels Corporation acquired AmeriSuites, an upscale chain of all-suite business 
class hotels from affiliates of the Blackstone Group, a New York-based private equity investment firm. 
Blackstone had inherited AmeriSuites from its 2004 acquisition of Prime Hospitality. The AmeriSuites 
chain was rebranded and called Hyatt Place, a competitor to the limited-service products Marriott 
International's Courtyard by Marriott and Hilton Worldwide's Hilton Garden Inn.

In December 2005 Hyatt acquired limited service company Summerfield Suites from the Blackstone Group. 
Blackstone had inherited Summerfield Suites from its purchase of Wyndham International. According to 
a Hyatt press release, in January 2012 Hyatt Summerfield Suites were rebranded as Hyatt House to 
compete in the "upscale extended stay market" against Residence Inn, Homewood Suites and Staybridge 
Suites.

In August 2009 it was reported that Hyatt Hotels Corporation filed plans to raise up to $1.15 billion 
in an initial share sale. That November Hyatt completed an initial public offering and began trading 
publicly on the New York Stock Exchange under the symbol H. According to the filing Mark S. Hoplamazian 
was to serve as CEO and Thomas Pritzker as Executive Chairman. The public offering is a result of the 
acrimonious breakup of the Pritzker family empire. Accused of looting family trusts, Thomas and cousins 
Penny and Nicholas took control of the family businesses when they and other family members were sued 
by cousin Liesel Pritzker, claiming fraud and seeking damages of over US$6 billion.

As of 31 December 2014 Hyatt Corporation's worldwide portfolio consisted of 587 properties. 

On September 1, 2011, Hyatt acquired Hotel Sierra, which has 18 properties in 10 states. Along with 
Hyatt Summerfield Suites hotels, several of these properties were rebranded as Hyatt house in 
January 2012.

Hyatt Hotels Corporation operates several chains. The Human Rights Campaign (HRC) awarded the company 
100% in the HRC Equality Index for eight consecutive years. The Hyatt Regency brand is the oldest 
brand in the company, with the Grand Hyatt and Park Hyatt brands being introduced in 1980. Some of 
these are styled as "resort" properties, and may have spas or other recreational facilities. Other 
brands include Hyatt Place, designed as a limited service offering for business travelers. An extended 
stay chain, Summerfield Suites, was acquired by Hyatt in 2005, and was renamed Hyatt House in January 
2012. Hyatt launched the Andaz brand in April 2007. The first Andaz hotel was The Great Eastern Hotel 
in London, followed by hotels in San Diego, West Hollywood, Shanghai and New York City (Andaz Wall 
Street & Andaz 5th Avenue).

On November 2013 Hyatt introduced their first all-inclusive resort brands, Ziva and Hyatt Zilara.


Sources:

"History of Hyatt Corporation - FundingUniverse". Fundinguniverse.com. Retrieved 2012-10-30.
"New World Development". Nwd.com.hk. Retrieved 2012-10-30.
"About Hyatt". Hyatt.com. 2012-06-30. Retrieved 2012-10-30.
"Elsinore Corporation". The Gale Group, Inc. Retrieved 4 August 2009.
Knightly, Arnold M. "Gaming pioneer Jeanne Hood dies". Las Vegas Review-Journal. Retrieved 4 August 2009.
Hyatt Hotels Corporation 2010 annual report, Part 1, Item 1, page 3
"Hyatt Officially Welcomes Hyatt House to the Neighborhood". Hyattpressroom.com. Retrieved 2012-10-30.
"Hyatt Hotels Corporation Prices Initial Public Offering". Hyattpressroom.com. Retrieved 2012-10-30.
Nadja Brandt (August 6, 2009). "Hyatt to Raise Up to $1.15 Billion in Share Sale". BloombergLPcom.
Andrews, Suzanna. "Shattered Dynasty". Vanity Fair. Retrieved 2012-10-30.
"Hotel Sierra Joins Hyatt". Hyatt.com. 2011-09-01. Retrieved 2012-10-30.
"Our Brands". Hyattpressroom.com. Retrieved 2012-10-30.
Hyatt Hotels Corporation Announces Andaz(TM)
shanghai.andaz.hyatt.com
"Hyatt Residence Club". Hyatt.com. Retrieved 2012-10-30.
"Assisted Living, Senior Residence, Independent Retirement Living 
Vi". Viliving.com. Retrieved 2012-10-30.
"Hyatt at Home". Hyatt at Home. Retrieved 2012-10-30.