| Sweet Adelines International | head office | www.sweetadelineintl.org/ | |
| Granite City Chorus | the boys! | www.granitecitychorus.co.uk/ | |
| Aberdeen Chorus | sisters' chorus | http://www.aberdeenchorus.co.uk/ | |
| National Association of Choirs | | http://www.nationalassociationofchoirs.org.uk/ | |