Sheldon Yellen, the CEO of privately-held disaster-cleanup company Belfor Holdings based in Birmingham, MI which generated $1.5 billion in revenue last year, once allegedly worked for reputed mobsters in the Motor City including a stint as a teenage boy cleaning toilets at the Southfield Athletic Club as reported by Forbes:
According to two retired FBI agents, the man in charge of the Southfield Athletic Club, where Yellen worked from age 14 to 22, was Mafia associate Leonard Schultz. His sons also worked at the club. The place served as headquarters for reputed mobster Anthony "Tony Jack" Giacalone, the Mafia's alleged street boss in Detroit who was long suspected of helping orchestrate the disappearance of Jimmy Hoffa. According to former FBI agents, Giacalone and his brother Vito ("Billy Jack") had hidden interests in a series of businesses throughout town, including a juice manufacturer named the Home Juice Co.
Yellen "got into business with Home Juice after the Schultzes gave him clearance to run a juice concession inside the Southfield Athletic Club," and "around the same time, Schultz helped Yellen secure a line of credit to get started in the vending-machine industry, which former FBI agents say was heavily infiltrated by the Mafia at the time." Yellen "flatly denies that he ever worked in organized crime" although "he says cryptically at one point" that "I've worked for some Italian people that controlled a lot of turf." There is no allegation that Balfor Holdings is tied to organized crime.