He was a director of
Florida National Banks of Florida, Inc. from 1960 to 1974; in 1978, he became chairman, chief executive officer and controlling shareholder of
American Banks of Florida, Inc., until their merger with
SouthTrust of Alabama, Inc. in 1998. Mason has served as vice chairman of
Juniper Content Corporation since January 2007 and as a director of Firestone Communications, which operated a Spanish children's television network. That same year, he acquired a 35 percent interest in
Intrepid Capital Management Inc., a
Jacksonville Beach investment management firm. He also has an interest in
AccentHealth, which provides medical information for consumers. Mason has been chairman of
Rebuilding Services, Inc. (since July 1949),
Acorn Ventures, Inc. (since August 1998),
12K, LLC (since December 2003), managing partner of
Middle East Ventures and
Connemara Capital Company, LLC (since December 2003), which are private investment companies with investments in real estate, media, financial services, oil and gas and transportation. ==Mentor==