• AOS Pacific Central Judging Center
• California Sierra Nevada Judging Center
• The Orchid Wire —
  Orchid Resource Directory

• American Orchid Society
• Diablo View Orchid Society
• Malihini Orchid Society
• Napa Valley Orchid Society
• Orchid Society of California
• Pacific Orchid Society
• Peninsula Orchid Society
• SF Conservatory of Flowers
• Santa Clara Valley Orchid Society
• Santa Cruz Orchid Society
• Sonoma County Orchid Society
• San Francisco Orchid Society
• San Diego Orchid Society
• Gold Coast Cymbidium Growers