Joseph Groia was called to the Ontario Bar in 1981. He served as the OSC's Director of Enforcement from 1987 to 1990. In 2000, he founded Groia and Company PC, where he has been a principal for over 20 years, specializing in securities and corporate litigation. He served as a Bencher of the Law Society of Ontario from 2015 to 2023. In 2018, the SCC acquitted him of 5 LSO charges of professional misconduct arising out of his successful defence of John Felderhof against OSC charges in the Bre-X Minerals case.