A Quartet based in Perth Scotland, established in 1998, who have a varied repertoire and are available for weddings, funerals, retirals and other special events.

A barbershop quartet performing in the central valley of California who are all members of the Gold Note chorus.

A registered SPEBSQSA Quartet based in the Des Moines, Iowa area.

Barcode (formerly Voice Male)1998 Dutch barbershop quartet champions.

Quartet with two members from the Bowie Knights of Harmony and two from Heart of Maryland chorus.

1996 Mid-Atlantic District Quartet Champions from Alexandria,?Virginia.

1978 International Quartet Champions from Louisville, Kentucky.

1980 International Quartet Champions from Boston, Massachusetts.

Quartet from Mount Blue High School in Farmington, Maine.?

The 2001 Land of Lakes District Quartet Champions. Links to its members chorus and associated organizations.

1998 Land O' Lakes district quartet champions from Fargo,?North Dakota.

Comedy quartet from Charleston,?Illinois known for their "Singing Sumos" routine.

An A Cappella quartet from the Netherlands which sings 4 part doo wop, close harmony and barbershop.

Kenmore State High School quartet from Brisbane Australia. High Distinction award winners at the 1998 Australian Academy Festival of Music.

Buckeye Blend specializes in OSU tailgate parties and parody skits

1999 Illinois District Champion Quartet and International Competitors.

Dallas,?Texas quartet available for shows.