Organizers
- Sam Perkins Basketball Camp
- Samalayuca Desert Challenge
- Samish Indian Nation
- Sammamish Rowing Association
- Sammamish Running
- Sammamish/Issaquah Young Life
- Sammys Triathlon Club
- Sampson County Parks and Recreation
- Sam's Adventure Camp
- Samurai Lacrosse
- San Angelo YMCA
- San Anselmo Recreation Department
- San Antonio 110 9/11 Memorial Climb
- San Antonio Humane Society
- San Antonio Road Runners
- San Antonio RoadRunners
- San Antonio Sports
- San Antonio Tennis Association
- San Antonio Young Marines
- San Antonio Zoo
- San Bernadino Parks and Recreation and Community Service Department
- San bernardino Valley College Athletics
- San Bruno Community Services Department
- San Carlos Children's Theater
- San Carlos School District
- San Diego Air & Space Museum
- San Diego Blood Bank
- San Diego Cyclo-Vets
- San Diego Fire Rescue Foundation
- San Diego Gymnastics
- San Diego Humane Society
- San Diego Jewish Academy
- San Diego Rhythmic Gmnasics Academy
- San Diego Rhythmic Gymnastics Academy
- San Diego Rock Church
- San Diego Run For The Hungry
- San Diego State Football
- San Diego State Men's Basketball
- San Diego State University Cheer and Dance
- San Diego State University Women's Soccer
- San Diego's Biggest Sports Play Date
- San Dimas Little League
- San Domenico School
- San Fernando Recreation and Community Services
- San Francisco Conservatory of Music
- San Francisco FrontRunners
- San Francisco Italian Athletic Club
- San Francisco Running and Walking
- San Francisco Seals
- San Francisco Zoo
