George Andreadis has been involved in many committees and boards entrusted with organizing
major events, and especially ones re-affirming the place of the sport in the Olympic Games,
sharing his insights and experience, such as being a founder member of the Hellenic Olympians
Association in 1987.
- Vice President of the Executive Board World Olympians Association (2011-2015)
- Vice-President of the Executive Board World Olympians Association (2011-current)
- President Hellenic Olympians Association (2000-current)
- Executive Board member World Olympians Association (2003-2007)
- Member of the Executive Board of the Mediterranean Games (1991)
- Member of the Hellenic Olympic Committee (1980-1984)
- Member of the International Olympic Academy Committee (1980-1984)
- Administrative Board Member Athens 1996 Bid Committee (1988-1990)