The name of 'Soroptimist' comes from

latin words, 'soror' (sister) and 'optimum (best), which means best for women.
Soroptimist International is a world service organization for women in management and the professions
4 Federations There are 120 clubs (almost 95,000 members) in over 120 countries around the world.
・ Americas (SIA)
・ Europe (SIE)
・ Great Britain & Ireland (SIGBI)
・ South West Pacific (SISWP)
Japanese soroptimists come under SIA (Soroptimist International of the Americas) and are divided into:
5 Regions There are a total of approximately 550 clubs with 14750 members in Japan.
Japan Chuo
・Japan Kita
・Japan Higashi
・Japan Nishi
・Japan Minami regions.

About Soroptimist

Soroptimist International of Tsuyama belongs to :
Japan Nishi Region
Service Programs
Soroptimist International are performing various service activities in relation to the following six programs.
・Economic/Social Development ・Education ・Environment ・Health 
・Human Rights/Status of Women ・International Goodwill and Understanding
Award Programs
American Federation Programs
*Women's Opportunity Awards
*Violet Richardson Award
*Making a Difference for Women Award
Japan West Region Programs
*Japan West Region Women's Opportunity Awards
*Japan West Region Violet Richardson Award
*Making a Difference for Women Award