| Year | Quartet | Chapter(s) |
|---|---|---|
| 2023 | FreshF | Lexington, KY |
| 2019 | Brothers of a Chord (Fall) | |
| 2016 | Midwest Vocal Authority (Fall) | |
| 2015 | Saturday Night Special (Spring) | |
| 2014 | Jordan River Crossing (Spring) | The Guyer Boys (Fall) | |
| 2013 | Miller's Boys (Fall) | |
| 2012 | Vintage Airstream (Spring) | Major Lift (Fall) | Lexington | Fort Wayne |
| 2011 | The 7ths (Fall) | Bloomington |
| 2010 | The Reen Family Singers (Fall) | Columbus - Greenwood |
| 2009 | All in the Cards (Fall) | |
| 2008 | Timeless (Spring) | Greater Indianapolis |
| 2007 | Southern Spark (Fall) | |
| 2005 | Four for the Price (Fall) | |
| 2004 | Special Effect (Fall) | |
| 2003 | Indiana Tones | |
| 2002 | Notable Exception (Fall) | |
| 2001 | Sounds Familiar | Greater Indianapolis, Muncie |
| 2000 | Ready Four Anything | |
| 1999 | Naturally Sharp (Fall) | |
| 1998 | Note Worthy | South Bend-Mishawaka |
| 1995 | Courthouse Square | Union City |
| 1993 | Highland Express | Terre Haute |
| 1990 | Chordially Yours | Bloomington |
| 1989 | Wild Pitch | Indianapolis |
| 1988 | Final Four | Indianapolis |
| 1987 | Vocal Express | South Bend-Mishawaka |
| 1986 | Lockerbie Squires | Indianapolis |
| 1985 | Indiana Tradition | Terre Haute |
| 1984 | Sound System | Mammoth Cave |
| 1983 | Men of Accord |
