Open Society Institute was created in 1993.
Open Source Software Institute was created in 2000.
Vivekanand Education Society's Institute of Technology was created in 1984.
Open Knowledge Society was created in 2008.
Open Spaces Society was created in 1865.
Party for the Open Society was created in 1998.
Open Society Archives was created in 1995.
Government
New Zealand Open Source Society was created in 2003.
International Journal of Foundations of Computer Science was created in 1990.
The Institute was created in 1983.
Guttmacher Institute was created in 1968.
The Rodale Institute was created in 1947.