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Mark Schaefer is an experienced leader in the security industry with a robust background in operations and business development. Currently serving as General Manager at Per Mar Security Services since January 2017, Schaefer previously held the roles of General Manager and Strategic Account Manager at Whelan Security, where responsibilities included overseeing personnel and operations across Wisconsin. Prior experience includes a tenure at G4S Secure Solutions, where Schaefer focused on business development and established relationships across various sectors to enhance security services. Schaefer holds a Bachelor's degree in Criminal Justice from the University of Wisconsin-Milwaukee, earned between 1989 and 1994.