HC Guitars - Brasil
Delta Guitars (Violões Resonadores) - Brasil
Max Rosa Guitars - Brasil
Gibson
Martin Guitars
Collings Guitars
Recording King
Breedlove
Bourgeois Guitars
Santa Cruz Guitars
Eastman
Deering Banjos
The Loar
Saga
Kimble Mandolins
Duff Mandolins
Stelling Banjos
Gold Tone
Elderly
Strings By Mail
Banjo.com
The Mandolin Store
Stewart MacDonald
Banjo Ben Clark Store
International Bluegrass Music Association (IBMA)
European Bluegrass Music Association (EBMA)
Bluegrass Music Hall of Fame and Museum
Bluegrass Unlimited
