* The New York Voices is an American vocal jazz group that formed in 1987. The group is known for its tight harmonies and improvisational skills.
* Take 6 is an American vocal jazz group that formed in 1980. The group is known for its tight harmonies and gospel-influenced sound.
* The Real Group is a Swedish vocal jazz group that formed in 1984. The group is known for its use of wordless vocals and its innovative arrangements of jazz standards.
* Vocalese is an American vocal jazz group that formed in 1990. The group is known for its use of wordless vocals and its interpretations of jazz instrumentals.