In the mid-1960s, Florida Governor Claude Kirk commissioned the Wackenhut Corporation to help fight a "war on organized crime", awarding the company a $500,000 contract.

Wackenhut had good contacts in politics, including Florida Governor Claude Kirk and Senator George Smathers, a friend of John F. Kennedy.

Soon after its founding, Wackenhut received lucrative contracts to guard Cape Canaveral and nuclear weapons testing sites in Nevada.

As a partner of the US government, Wackenhut received contracts in sensitive areas of national security, such as embassies and nuclear power plants.

[7] During the McCarthy era, the right-wing George Wackenhut began compiling files with information on politically suspect individuals, accusing them of communist activities.

The then-director of international operations, Ernesto Bermudez, admitted that he had 1,500 men in El Salvador who “do things you don't want your mother to know about.”[7] In Belgium, Wackenhut is said to have worked with right-wing extremists in the 1980s, who in turn had contacts with security services.

In September 2007, its employees Kerry Beal and Paul A. Kennedy videotaped their fellow security guards at the Peach Bottom Nuclear Generating Station sleeping while on duty.

[12] In 2003, the management of WCC, the wholly owned subsidiary of Wackenhut's prison business, raised funds to repurchase all common stock held by G4S since 2002, changing its name to The GEO Group, Inc.

Plaintiff alleges that several of the guards and motel employees conspired to "teach Janet Chandler a lesson" by beating, sexually assaulting, and killing her).

"[17] In 2010 the parents of Janet Chandler contended that Wackenhut did not thoroughly check the employees' backgrounds and then failed to properly supervise them, ignoring problems that arose with the workers.

[18] Fingers were pointed at Wackenhut when it was revealed that anti-nuclear protesters, including an 82-year-old nun, had managed to cut through fences of one of the United States’ most protected nuclear facilities at Oak Ridge in Tennessee in July 2012.

[19] Three activists broke into the US Government's only weapons grade storage facility to paint graffiti and throw what they claimed was human blood on the walls.

[19] The breach and lack of security at the site at the time was blamed upon the absence of key Wackenhut personnel in the previous few weeks; the plant manager and chief operating officer had retired 12 days prior to the incident.

[22] Under Florida state law, for him to work as an armed guard the company was required either to make a full psychiatric evaluation of Mateen, or to administer a "validated written psychological test".

"[23] Carol Nudelman, the psychologist listed on the character certification submitted by G4S to the state said she stopped working for the company in 2005 and denies ever having met him.

"[23] On September 10, 2016, the Florida Department of Agriculture and Consumer Services fined G4S $151,400 for providing inaccurate psychological testing information after it found the psychologist whose opinion was necessary to permit Mateen to carry a weapon was not practicing as a screener.

[34] After Mateen claimed to his co-workers a family connection to Al Qaeda and said he was a member of Hezbollah, the county sheriff's office called in the Federal Bureau of Investigation.

[40] The PGA Village board voted unanimously to review a $1 million annual contract with G4S and consider other vendors after the sale of a resident's home was cancelled by a purchaser who learned that Mateen had patrolled the community.