British association of Barbershop Singers  (BABS)

www.singbarbershop.com
 

Ladies association of British Barbershop Singers (LABBS)

www.labbs.org.uk
 

Southern Union Chorus (Poole based men chorus)

www.southernunionchorus.co.uk
 

Mind The Gap Quartet

https://m.facebook.com/mtgquartet/
 

Halfeight Quartet

www.halfeight.co.uk
 

Barbershop harmony Society (USA)

www.barbershop.org