Seattle

• Ancora
  
• Ave Renaissance Women's Choir
  
• Cantare Vocal Ensemble
• Cappella Romana
• Choir of the Sound
• Choral Arts
• The Esoterics
• The Magi Ensemble
  
• Magnolia Chorale
• Market Street Singers
• Medieval Women's Choir
  
• Mirinesse Women's Choir
  
• Musica Sacra Chamber Chorale
• Northwest Chamber Chorus
• Northwest Choirs
• Northwest Chorale
• Northwest Girlchoir
• Opus 7
• Phinney Neighborhood Community Chorus
  
• Sacred Music Chorale
• Seattle Bach Choir
• Seattle Children's Chorus
• Seattle Choral Company
• Seattle Girls' Choir
• Seattle Jewish Chorale
• Seattle Labor Chorus‏
• Seattle Peace Chorus
  
• Seattle Pro Musica
• Seattle SeaChordsmen
  
• Sparkling Choir of Love
  
• Sine Nomine: Renaissance Choir
• The Sound of the Northwest
• Spirit of The Sound Choir
• 
  

Eastside

• Bellevue Chamber Chorus
• Bellevue Girlchoir
  
• Cascadian Chorale
• Columbia Choirs
  
• Kirkland Choral Society
• Lake Washington Singers
• Pacific Sound Chorus
  
• Master Chorus Eastside
• Redmond Chorale

North Sound

• Cantabile of Skagit Valley
• Everett Chorale
• Skagit Valley Chorale
  
• Sno-King Chorale
• Sonus Boreal
  
• Whatcom Chorale

South Sound

• Canonici
• Cora Voce
• Federal Way Chorale
• Illumni Men's Chorale
• Jet Cities Chorus
• Masterworks Choral Ensemble
  
• Northwest Repertory Singers
• Rainier Chorale
• Rainier Youth Choirs
• 
  
West Sound
• Bainbridge Chorale
• Vashon Island Chorale

Beyond the Sound

• Port Townsend/East Jefferson County Community Chorus