Claim: Texas is the home of Six Flags.

Six Flags , officially Six Flags Entertainment Corporation , is an amusement park corporation based in the United States , with properties in the US , Canada , and Mexico . It is the largest amusement park company in the world , based on the number of properties owned , and is ranked fifth in terms of attendance . The company maintains twenty properties throughout North America including theme parks , thrill parks , water parks , and family entertainment centers . In 2015 , Six Flags properties hosted over 28.5 million guests .   Six Flags was founded in Texas and derived its name from its first property , Six Flags Over Texas . The company maintains a corporate office in Midtown Manhattan and its headquarters are in Grand Prairie , Texas . On June 13 , 2009 , the corporation filed for Chapter 11 bankruptcy protection , which it successfully exited after restructuring on May 3 , 2010 .