Sweet Adelines International
 Sweet Adelines International is a highly respected worldwide organization of women singers committed to advancing the musical art form of barbershop harmony through education and performance.
 
1 North Atlantic - New England
 2 Border Lakes Region - Michigan and Ontario
 3 Lake Michgan - Michigan, Indiana, Illinois
 4 East Central - Ohio, Indiana, Kentucky, West Virginia
 5 Midwest Gateway - Missouri, Illinois, Kentucky, Iowa
 6 Can-Am - Manitoba, Ontario, South Dakota, Minnesota, Montana, Iowa
 7 Midwest Plains - Kansas, Missouri, Iowa, Nebraska
 8 Rocky Mountain - Montana, Wyoming, South Dakota, Nebraska, Kansas, Colorado, Utah
 9 Atlantic Gulf - Florida, Georgia
 10 Great Gulf Coast - Texas, Louisiana
 11 Sequoia Pacifica - Southern California
 12 Pacific Shores - Northern California, Nevada, Hawaii
 13 North Pacific - Washington, Idaho
 14 Blue Ridge - Maryland, Virginia, North Carolina, South Carolina
 15 Greater New York - New York, New Jersey
 16 Lake Ontario - Ontario, New York
 17 Lake Erie - Michigan, Indiana, Ohio, Pennsylvania
 19 Atlantic Bay-Mountain - Delaware, Maryland, New Jersey, Pennsylvania, West Virginia
 21 Golden West - California, Arizona, Texas, Nebraska, New Mexico
 22 Mid-America - Wisconsin, Iowa, Illinois
 23 Heart of Dixie - Alabama, Georgia, Mississippi, Tennessee, Florida
 24 Mount 'n Shore - Montana, Idaho, Washington, Oregon
 25 Heart of America - Texas, Oklahoma, Arkansas, Louisiana, Missouri
 26 Canadian Maple Leaf - western Canada
 31 Quartet of Nations - England, Ireland, Scotland, Wales and the Netherlands
 32 Nordic Light - Sweden
 34 Southern Cross - Australia
 35 New Zealand 
  

If you want to stay informed of the all the happenings of the female barbershop music scene, subscribe to Pitch Pipe, which is put out by Sweet Adelines Internation each quarter. It's full of news, reviews, and previews of coming events and competitions.
 
Barbershop Harmony Society
 The Barbershop Harmony Society brings men together in harmony and fellowship to enrich lives through singing.
BABS - British Association of Barbershop Singers
 The British Association of Barbershop Singers is a registered charity, whose aim is to promote the education of people of any age in the enjoyment of Harmony Singing in the Barbershop Style.
LABBS - Ladies Association of British Barbershop Singers
 LABBS is the only British Ladies Barbershop Association in the UK.
AAMBS - Australian Association of Male Barbershop Singers
 The Australian Barbershop community is vibrant collection of male singers from all over Australia, who gather together to sing tight, exciting four-part harmonies in quartets and in choruses.
NZABS - The New Zealand Association of Barbershoppers Inc.
 All over New Zealand there are men enjoying singing in the barbershop style. They meet as quartets or as choruses and love to sing with each other and to entertain the public of new Zealand.
Harmony, Incorporated
 A vibrant organization of women of all ages, recognized for world-class singing in the barbershop style and promoting bonds of friendship.
World Harmony Council
 An organization of barbershop societies around the world.
Scotland's Harmony Junction
 Once a year since 1997 the five Barbershop Choruses in Scotland have met to celebrate the hobby of Barbershop Harmony and they called it Scotland's Harmony Junction.
BinG! - Barbershop in Germany
 Since BinG! was founded in 1991, many new barbershop choruses and quartets have come into being in Germany, creating their wonderful sounds on the stage with animated enjoyment.
DABS - Dutch Association of Barbershop Singers
FABS - Finnish Association of Barbershop Singers
 FABS was founded in 2004 to promote and support barbershop in Finland. The aim is to increase interest in 4-part a cappella singing among juniors as well as seniors who have singing as their hobby.
Holland Harmony
 The largest Dutch organization for female barbershoppers.
IABS - Irish Association of Barbershop Singers
SABS - Spanish Association of Barbershop Singers
SNOBS - Society of Nordic Barbershop Singers
 SNOBS is an association aiming to spread, develop and preserve Barbershop style in choruses and quartets throughout the Nordic countries.