Courtesy of Citybizlist โ€“ With a net worth of $3.7 billionMitchell Rales, the 55-year-old founder of manufacturing and technology company Donaher, led Marylandโ€™s nine billionaires on Forbes magazineโ€™s listing of the worldโ€™s billionaires.

Rales, along with brother Steven, built Equity Group Holdings by buying small manufacturing companies during the junk bond frenzy of the 1980s.

Forbes, which has tracked the worldโ€™s billionaires for the past 25 years, counted an all-time high 1,226 billionaires worth a record $4.6 trillion this year. Mexican Carlos Slim topped the list with $69.5 billion.

Baltimoreโ€™s Kevin Plank made the list at #1075. Baltimore Ravens owner Steve Bisciotti, who lives in Anne Arundel County, also made the list.

Read the list at Citybizlist