| World Harmony Council - Umbrella Organisation for all barbershop organisations worldwide |  |
| Barbershop in Harmony - Umbrella Organisation for all barbershop organisations in the UK |  |
| Barbershop Harmony Society - US, previously known as the Society for the Preservation and Encouragement of Barbershop Quartet Singing in America |  |
| BABS - British Association of Barbershop Singers (Men) |  |
| AAMBS - Australian Association of Male Barbershop Singers |  |
| BinG! - Barbershop in Germany |  |
| DABS - Dutch Association of Barbershop Singers |  |
| FABS - Finnish Association of Barbershop Singers |  |
| Harmony Inc - American based sister organisation |  |
| Holland Harmony - Ladies Association of Dutch Barbershop Singers |  |
| IABS - Irish Association of Barbershop Singers |  |
| NZABS - The New Zealand Association of Barbershoppers Inc. |  |
| SABS - Spanish Association of Barbershop Singers |  |
| SNOBS - Society of Nordic Barbershop Singers |  |
| SPATS - Southern Part of Africa Tonsorial Songsters |  |
| Sweet Adelines International - Sweet Adelines (links to Region 31 Quartet of Nations) |  |
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