Northeast U.S.
Greater Hartford TC
(West Simsbury, CT)
Casco Bay Threshold Singers
(North Yarmouth, ME)
Providence Threshold Singers
(Providence, RI)
Westerly Threshold Singers
(Westerly, RI)
Mid-Atlantic U.S.
Hospicare TC
(Ithaca, NY)
Serenity Threshold Singers of Southeastern Pennsylvania
(West Chester, PA)
Lehigh Valley TC
(Whitehall, PA)
Rockbridge Area Threshold Singers
(Lexington, VA)
Southeast U.S.
Gentle Voices TS
(Leesburg, FL)
Athens Threshold Choir
(Athens, GA)
Threshold Singers of Wake County
(Raleigh, NC)
Midwest U.S.
TS of Richmond, Indiana
(Richmond, IN)
Greater Lafayette Threshold Singers
(West Lafayette, IN)
Jennings Threshold Choir
(Garfield Heights, OH)
Great Lakes U.S.
Fort Wayne Area Threshold Singers
(Fort Wayne, IN)
Crystal Lake Threshold Singers
(Beulah, MI)
Sail On Singers
(Marquette, MI)
Kenosha Lighthouse Threshold Singers
(Kenosha, WI)
Central U.S.
Pathways Comfort Singers
(Chesterfield, MO)
Dallas By Your Side Singers
(Dallas, TX)
Rocky Mountains U.S.
Song of the Mountain TS
(Colorado Springs, CO)
Gunnison Valley Threshold Singers
(Crested Butte, CO)
Crestone Threshold Singers
(Crestone, CO)
Grand Valley TS
(Grand Junction, CO)
Southwest U.S.
Southern California
Northern California
Meadow Vista TS
(Meadow Vista, CA)
Sutter Care at Home Threshold Singers
(San Francisco, CA)
Northwest U.S.
Chilkat Valley TC
(Haines, AK)
Heart of Oregon Threshold Singers
(Bend, OR)
Columbia Gorge Threshold Singers
(Hood River, OR)
Haven Threshold Choir
(Bellingham, WA)
Kitsap Threshold Singers
(Port Orchard, WA)
Port Townsend TC
(Port Townsend, WA)
HeartSongs TC of Stanwood/Camano
(Stanwood, WA)
Europe
TC of West Wales
(Llangolman, United Kingdom)
(South Brent, United Kingdom)
(Wageningen, Netherlands)
(London ENG, United Kingdom)
Stockholm Bedside Singers
(Stockholm, Sweden)
Canada
Alpine Voices TC
(Canmore, Canada)
Voices of Compassion TC
(Edmonton, Canada)
Bowen TS
(Bowen Island, Canada)
Pure Joy Threshold Singers
(Campbell River, Canada)
Kamloops Threshold Singers
(Kamloops, Canada)
Toronto Threshold Singers
(Toronto, Canada)
Mexico and Central America
Oaxaca Canta
(Oaxaca, Mexico)
Pacific and Southeast Asia
Reflections TS of Christchurch
(Christchurch, New Zealand)
Ballina Threshold Singers
(Ballina, Australia)
Brisbane TC
(Brisbane, Australia)
Maleny Vigil Threshold Singers
(Maleny, Australia)