La Bella / E. & O. Mari, Inc. is a family-owned music string manufacturer founded in 1913 by Italian immigrants Olinto and Emilio Mari. The company has been continuously family-owned and operated, currently run by Richard Mari Cocco Jr. with his children, and is known for its heritage in string making dating back to the 17th century. La Bella manufactures a wide range of music strings for guitar, bass, folk, world, and orchestral instruments, and also hand-builds Olinto basses in Brooklyn, NY.