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Bay Area
 | Outta the Vox
Singing today's hits and classics from decades past, we are Outta the Vox! OTV is one of Sacramento's premiere a cappella ensembles, serving you fresh takes on some of your favorite tunes. Members: Genessee Tudino, Louis Moreno, Allison Johansen , Justin Hampel , Justin Pratt, Justin Vaughn, Parker Mitchell   |
 | Ro Sham Bo
Ro Sham Bo brings a surprising and exciting spark to the Bay Area vocal music scene. Ro Sham Bo's roots are steeped in jazz and funk, and their performances deliver an inspired blend of complexity and ease. Most group members are music educators or music educated, arrange, perform, and direct not only for Ro Sham Bo but for groups from San Jose to Black Rock City, and have taught students from Stanford University Jazz Workshop to Jazz Camp West to Blue Bear School of Music. Members: Michael Eng Hoe Khor, Sam Kim, Robert Lee, Amy Lin, Amie Shapiro, Rick Wood  |
 | Find A Capella
We are a group of vocal singers, music lovers, and young professionals based in the Bay Area. We held our first concert on Oct 15, 2022, a few days past our first anniversary. We hosted 200 people and sang 14 songs throughout the concert. We found in music not only friendship, excitement, emotional support, but also most importantly, each other. We work on pop songs and musicals, and we also love jazz, folk, and church songs. We hope to deliver our good vibes to our audience and the community. We are 'Find A Cappella'. Members: Shuting Fu, Caiwei He, Rui Yang, Jeffrey Wang, Yulou Zhou, Yunfei Song, Yichao Wu, Zhihao Li, Sunny Li, Maogeng Qin, Di Zha  |
 | Chromatic Convergence
Chromatic Convergence is an all-gender contemporary a cappella group that provides an engaging experience through unique arrangements of today s popular music. including pop, jazz, R&B, rock, hip-hop, soul, gospel, and musical theater. The group is conducted by Dario Johnson, who is also credited with a number of the group s musical arrangements. Members: Lofn Young, Jo Basile, Karter Ruud, Claire Yackley, Nao Hartwig, Ivan Vielma, Truesten Tautolo, Kevin Schoenfeld, Noah Rulison, Brandon Park  |
 | Coda Conduct
SF Coda Conduct is a contemporary a cappella group that has delighted Bay Area audiences since 2024. Comprised of 12 experienced singers from diverse musical backgrounds, the group has grown into a tight-knit ensemble known for its dynamic sound and high energy arrangements. Performing everything from nostalgic classics to today's hits, Coda Conduct aims to bring fresh energy to the Bay Area vocal scene. We are proud to return to Harmony Sweepstakes for our second time! Follow our journey on Instagram @sfcodaconduct Members: Caroline Meinhardt, Candice Yung, Rosie Bochenek, Laynee Daniels, Dhanya Jayagopal, Julia Rogers, Sam Joffe, Jonathan Bloom, Tyler Hedrick, Ben Alpers, Alex Bignell, Jon Abello |
 | HOUSE//MIX
HOUSE//MIX is a collaborative project that bridges a cappella and EDM into unforgettable and electric live performances. Powered by next-level beatboxing, lip bass, synth sounds, and other vocal effects, HOUSE//MIX strives to push the musical boundaries of what a cappella can really do. The group brings together singers from all corners of the Bay Area s vibrant a cappella scene including members of A Cappella Collective, Business Casual, Loop Buddies, and Offbook. Members: Connie Chang, Janelle Tong, Cassie Greene Chamoun, Danny Olefsky, Michael Eng Hoe Khor, Kunwoo Hong, Danny Cavero |
 | Twilight Quartet
Twilight is the current Sweet Adelines International Region 12 champion quartet Members: Anna-Pia Hubacher, Kristi Penelton, Bridget Barrett, Lysanda Lee |
 | Vocal Music Workshop
Vocal Music workshop has gone through many changes over the years. Originally a show choir (with full band and choreography), Vocal is at present a 12-member a cappella sensation, exploring the music of all genres and time periods. Year-round they are called upon to entertain and inspire the community, performing at sports events and private special events. Over the years Vocal has been fortunate to share the stage with amazing performers such as Bobby McFerrin, Dick Van Dyke, The House Jacks, The EDLOS, OC Times, Straight No Chaser, Rockapella, The Exchange, VoicePlay, The Philharmonic and SixAppeal. Members: |
Chicago
 | THUMMp
Once upon a time, one of the greatest acappella groups in the Midwest was a buzz in the ears of Milford, MI. From 1998 - 2010, elmoTHUMM wowed audiences with their aggressive sound, rich arrangements, and boundless energy. They won countless contests, accepted awards, played for Presidents and royalty, filled TV screens, and worked their way into the hearts of kids and parents throughout the country. Now THUMMp, they look forward to bringing Chicago more great music as only THUMMp can. Members: Greg Vaden, Jason Miller, Ed Pendleton, Tre Cruz |
 | 4O6
4O6--pronounced four-oh-six--is the competitive sub-group of Bradley University's Dynamix A Cappella club. They are a co-ed, student-run group that performs throughout their home campus and the greater Peoria area, singing a variety of genres including pop, rock, jazz, and a cappella classics. Their 11 members range from music majors to first-time performers. This will be their first time competing in an a cappella competition, as their group was just recently formed last year, though you might recognize them from their guest performance at the 2025 Harmony Sweepstakes competition. 4O6 is thrilled to be back, and they wish all the competing groups the best of luck. Members: Mars Heath, Grace Leonard, Olivia Williams, Kaitlyn Bell, Audrey Drake, Diamanda Vavilis, Shelcy Altis, Bruce Smolucha, Christopher Leatherwood, Casper Chhe, Sean Crawford |
 | Linc 182
Linc 182 is a new and exciting acapella ensemble, mostly versed in the barbershop style of singing. They recently won the 2023 Illinois District State Barbershop Quartet Contest and qualified/competed at the 2024 International Quartet Contest. Although fairly new, this quartet is full of experienced musicians, well at least 3/4 full. The older members of the quartet have won multiple Illinois District quartet championships, competed Internationally, as well as won chorus championships with the award winning Sound of Illinois Chorus, located in Bloomington, Normal. The Linc part of the quartet is 14 year old tenor, Lincoln Beutel, who is the son of the baritone, Tim Beutel. We hope you enjoy the rich harmonies and spritely energy of Linc 182! Members: |
 | Outbound A Cappella
Outbound A Cappella is a contemporary a cappella group based out of the Chicago suburbs. Founded in 2023, they are known to perform a diverse set of music, spanning various genres and decades. Members: Megan Ryan, Sabra Gerber, Ilana Bley, Marissa Buchan, Kendall Bregenzer, Courtney Tedesco, Anish Parikh, Jake Scheuring, Michael Severino, Scott Spector, Dan Kassel |
 | The Peppermint Patties
The Peppermint Patties is a Chicago-based vocal group founded in 2018 by Anna Caldwell, Laura Emery, and Daina Fischer, with Nikki Krzebiot joining in 2023. The group specializes in close-harmony jazz and musical theater, with a dash of pop and classical music. All of the Patties are professionally trained musicians with degrees in vocal performance and music education. They perform across Chicagoland and the Midwest as both a trio and a quartet, appearing at private events and headlining shows at venues such as Venus Cabaret and Hey Nonny. In 2025, The Peppermint Patties won third place at the Chicago Harmony Sweepstakes A Cappella Festival. Members: Anna Caldwell, Daina Fischer, Nikki Krzebiot |
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