| Year | Quartet Name / Chapter(s) | Tenor | Lead | Baritone | Bass |
|---|---|---|---|---|---|
| 2023 | California Kings Westminster |
Alex Carlson | Lucas Der Mugrdechian | O.J. de la Osa | Mitchell James Sampang |
| 2022 | Motley Q Greater Los Angeles & La Jolla |
Travey Sandberg | Linda Schrab | Bryan Sandberg | Charles Carothers |
| 2019 | Noteable Frank Thorne, Sante Fe Springs |
Jacob Gonzalez | Tim Villegas | Emil Pichardo | Ethan Miley |
| 2018 | Saucebox Central Arizona, Greater Phoenix, Mesa |
Randy Bingel | Adam Kaufman | Bob Shaffer | Don Koehnlein |
| 2017 | Scoop 'Em Up Salt River Valley, Santa Fe Springs |
Scott Wiegand | Alex Hannan | Brent Graham | Gary Steinkamp |
| 2016 | West Coast Ringers Santa Fe Springs, Orange (Quartet), Santa Monica |
Egan Carroll | Jeremy Loper | Charles Carothers | Adam Marangkis |
| 2015 | Batteries Not Included Greater Phoenix |
Eric Jeide | Ryan Malikowski | Chaz Chesser | Matt Marino |
| 2014 | Brannigan Bay Area, Montclair, Frank Thorne |
Julian Kusnadi | John Pilla | Gabriel Lotto | Chris Lewis |
| 2013 | The Newfangled Four Westminster, Santa Fe Springs & Las Vegas |
Joey Buss | Jackson Niebrugge | Ryan Wisniewski | Jake Tickner |
| 2012 | SBPC California Delta |
Brandon Dyer | Anthony Tavianini | Matt Surges | Jason Dyer |
| 2011 | 56 East La Jolla, Santa Fe Springs, |
Preston Kingsley | Dave Pfiznemeier | Jude Thomas | John Forrest |
| 2008 | Sound Agreement Greater Phoenix |
Mark Spriggs | Corbin Beu | Mike Pippenger | Rodney Armstrong |
| 2007 | Uproar! Fresno |
James Irwin | Quint Ellis | Loren Wiens | Eric Essayan |
| 2006 | Equinox Greater Phoenix |
David Baker | Jim Case | Jim Ziegler | Tim Haskins |
| 2005 | The Club Santa Fe Springs |
Garry Texeira | Colby Stroud | Justin Miller | Brian Harmon |
| 2004 | High Five Phoenix Saguaro |
George Couch | Tim McMullan | Eric Bjornsen | Scot Cinnamon |
| 2003 | OC Times Aloha, Santa Fe Springs, Westminster |
Shawn York | Sean Devine | Patrick Claypool | Drew Harrah |
| 2002 | Rhythm And Rhapsody Phoenix |
Grant Fox | Tim McMullan | Mark House | Shreyas Amin |
| 2001 | Prestige Conejo Valley |
Larry Dixon | Dan Cardin | John Brockman | Ken Barker |
| 2001 | The Perfect Gentlemen Frank Thorne, South Bay, Inland Cities |
Tim Reeder | Dan Jordan | Mike Economou | Jim Campbell |
| 1999 | Top Cats Sacramento, Central Valley |
Eric Brickson | Timothy Huntsinger | Bruce Sellnow | Alan LeVezu |
| 1969 | The Eirelads Reseda Valleyaires |
Bob Mathis | Tom Laverty | Bob Cathaway | Don West |