SeaWorld

SeaWorld was founded in 1964 by Milton Shedd, Ken Norris, David Demott and George Millay. The four graduates of UCLA originally set out to build an underwater restaurant and marine life show. When the underwater restaurant concept was deemed unfeasible, they scrapped those plans and decided to build a park instead, and SeaWorld San Diego was opened on March 21, 1964. With only a few dolphins, sea lions, 6 attractions and 22 acres (89,000 m2), the park proved to be a success and more than 400,000 guests visited in the first 12 months.

After considering other locations in the midwest, including the Lake Milton/Newton Falls area west of Youngstown, Ohio, it was decided that Aurora, Ohio would be the new home of a SeaWorld. The park opened on May 29, 1970. The Aurora site was approximately 15 miles (24 km) northwest of the Lake Milton site and 30 miles (48 km) southeast of Cleveland. By this time, the founders of the company had captured a few more species of animals, including a killer whale that was brought to the new facility. The harsh winter climate permitted the park to be open only from mid-May until mid-September.

The Walt Disney World Resort in Orlando, Florida opened near the end of the second operating season of SeaWorld Ohio. The success of Disney in Orlando provided a location that was already popular with tourists. SeaWorld Orlando opened in 1973.

Harcourt Brace Jovanovich, Inc. (HBJ) purchased the company in 1976 and 12 years later they built a new park in Texas. In 1988, SeaWorld San Antonio opened just a few miles outside of San Antonio. Growth has pushed the city outwards and now SeaWorld San Antonio lies in the Westover Hills community in West San Antonio. The park was open year-round like its sister parks in California and Florida in 1988 and 1989, then went to a seasonal schedule.

In May 1987, Robert Maxwell's British Printing and Communication Corporation (BPCC) made an unsolicited bid to acquire HBJ. HBJ defended itself from the hostile takeover attempt by going deeply into debt to make large cash payments to shareholders. The strain of the debt from fighting off the takeover, as well as a strategic decision to re-focus on HBJ's core publishing and insurance businesses, were factors in HBJ's decision to sell its theme park holdings in 1989.

The Anheuser-Busch Company made an offer to purchase the SeaWorld parks. HBJ also owned and operated two other parks, Cypress Gardens and Boardwalk and Baseball, and out of fear of not being able to find a buyer for the two other parks, HBJ refused to sell the parks individually. Despite a long negotiation, Anheuser-Busch bought all six parks in 1989: SeaWorld in San Diego, Aurora, Orlando and San Antonio as well as Cypress Gardens in Winter Haven and Boardwalk and Baseball in Haines City. Soon after the sale was final, Busch sold Cypress Gardens to the park's management and closed Boardwalk and Baseball. Anheuser-Busch put millions of dollars back into the parks to revive and prolong their longevity. SeaWorld is accredited by the Association of Zoos and Aquariums (AZA).

In July 2008, Anheuser-Busch was purchased by Belgian-Brazilian brewer InBev. InBev had a reputation as a cost-cutting company that would not be interested in holding non-beverage businesses. In 2009, the combined AB InBev sold its Busch Entertainment division to the Blackstone Group. The company was renamed SeaWorld Parks & Entertainment in December 2009. In 2013, Blackstone shortened the company's name to SeaWorld Entertainment and sold 37% of it in an initial public offering.

In 2016, SeaWorld admitted that it had been sending its employees to pose as activists to spy on animal rights organization PETA. Following an investigation by an outside law firm, SeaWorld's Board of Directors directed management to end the practice.