The Association of California Symphony Orchestras (ACSO) was founded in 1969 at Asilomar as a means of sharing information and resources for California Orchestras and it is the largest state orchestra association in the United States. Over the past 40 years, ACSO membership has grown to include over 400 individuals and organizations from California and other states. Its 21-member Board of Directors is representative of organizations with different budget sizes, from different geographic areas, and consists of trustees, music directors, musicians, volunteers and staff.
Membership is open to orchestras, choruses and classical music presenters of all sizes, symphony leagues and guilds, youth orchestras, festivals, artists managements, businesses, and individuals associated with orchestras or wishing to access its services.
Current members of ACSO with Wikipedia pages include:
Orchestras & Choruses: Bay Area Rainbow Symphony, California Symphony, California Youth Symphony, Fremont Symphony Orchestra, Livermore-Amador Symphony, Los Angeles Chamber Orchestra, Los Angeles Children's Chorus, Los Angeles Philharmonic, Music Academy of the West, New Century Chamber Orchestra, New West Symphony, North State Symphony, Oakland East Bay Symphony, Ojai Music Festival, Orchestra Nova San Diego, Pacific Chorale, Pacific Symphony, Peninsula Symphony, Philharmonia Baroque Orchestra, Sacramento Philharmonic Orchestra, Sacramento Youth Symphony, San Diego Symphony, San Francisco Conservatory of Music, San Francisco Symphony, San Jose Youth Symphony, Santa Barbara Symphony Orchestra, Santa Cruz County Symphony, Southwest Chamber Music, Stockton Symphony
Businesses: ASCAP, League of American Orchestras, Opus 3 Artists