- Group Name
- San Marcos HS (TX)
- Hometown
- San Marcos, TX
- Contact
- Matthew Sotelo
- Website
- https://www.rattlerbands.org/san-marcos-high-school.html#/
- Group Name
- San Marino HS
- Hometown
- San Marino, CA
- Contact
- Edgard Areas
- Website
- https://www.sanmarinohs.org/
- Group Name
- San Mateo HS
- Hometown
- San Mateo, CA
- Contact
- April Pietsch
- Website
- https://www.bearcatmusic.org
- https://www.facebook.com/BearcatMusic
- https://www.instagram.com/bearcat.music/
- Group Name
- Sand Creek HS
- Hometown
- Colorado Springs, CO
- Contact
- Katarina Springer
- Group Name
- Sandra Day O'Connor HS JV
- Hometown
- Phoenix, AZ
- Contact
- Austin Cilone
