2022
South Seattle Threshold Singers
(Seattle, WA, US)
Shepherdstown Threshold Singers
(Shepherdstown, WV, US)
Gentle Voices TS
(Leesburg, FL, US)
Westerly Threshold Singers
(Westerly, RI, US)
2021
Casco Bay Threshold Singers
(North Yarmouth, ME, US)
Ballina Threshold Singers
(Ballina, Australia)
2020
Ultra Sounds Threshold Singers of Boca Raton
(Boca Raton, FL, US)
Haven Threshold Choir
(Bellingham, WA, US)
(Wageningen, Netherlands)
Stockholm Bedside Singers
(Stockholm, Sweden)
Providence Threshold Singers
(Providence, RI, US)
Heart of Oregon Threshold Singers
(Bend, OR, US)
Rockbridge Area Threshold Singers
(Lexington, VA, US)
Crystal Lake Threshold Singers
(Beulah, MI, US)
2019
Sutter Care at Home Threshold Singers
(San Francisco, CA, US)
Crestone Threshold Singers
(Crestone, CO, US)
Columbia Gorge Threshold Singers
(Hood River, OR, US)
Stillwater Hospice Threshold Singers
(Fort Wayne, IN, US)
(South Brent, United Kingdom)
Greater Lafayette Threshold Singers
(West Lafayette, IN, US)
Oaxaca Canta
(Oaxaca, Mexico)
Gunnison Valley Threshold Singers
(Crested Butte, CO, US)
2018
Voices of Compassion TC
(Edmonton, Canada)
Song of the Mountain TS
(Colorado Springs, CO, US)
Toronto Threshold Singers
(Toronto, Canada)
Sail On Singers
(Marquette, MI, US)
(Sheffield, United Kingdom)
2017
Pure Joy Threshold Singers
(Campbell River, Canada)
TS of Richmond, Indiana
(Richmond, IN, US)
Meadow Vista TS
(Meadow Vista, CA, US)
(Westhampton Beach, NY, US)
Reflections TS of Christchurch
(Christchurch, New Zealand)
TC of West Wales
(Llangolman, United Kingdom)
Hospicare TC
(Ithaca, NY, US)
2016
Grand Valley TS
(Grand Junction, CO, US)
Chilkat Valley TC
(Haines, AK, US)
(Great Barrington, MA, US)
Alpine Voices TC
(Canmore, Canada)
2015
(San Luis Obispo, CA, US)
(London ENG, United Kingdom)
2014
2013
Pathways Comfort Singers
(Chesterfield, MO, US)
Brisbane TC
(Brisbane, Australia)
TC of the Palouse
(Pullman, WA, US)
Bowen Threshold Singers
(Bowen island, Canada)
2012
2011
2010
HeartSongs TC of Stanwood/Camano
(Stanwood, WA, US)
2009
(Colorado Springs, CO, US)
Greater Hartford TC
(West Simsbury, CT, US)
(Sterling Heights, MI, US)
(Chapel Hill/Durham, NC, US)
2008
2007
(Charlottesville, VA, US)
2006
2005
Aromas TC
(Aromas, CA, US)
(Glen Ellen/Sonoma, CA, US)
2001
2000