Tema
- Woodside High School4
- World Class Wrecking Crew1
- World Conference of Mayors1
- YEP1
- YMCA9
- YMCA of the Mid-Peninsula2
- YUCA3
- Yee Wo Mock1
- Yolonda 'Doc' Blom1
- Youth Community Service2
- Youth Development Center5
- Youth Development Center (YDC)1
- Youth United for Community Action (YUCA)5
- Youthswork Inc.1
- Yvonne Ellis1
- Zacc Baker1
- Zakiya Carr Johnson1
- Zalika Sykes2
- Zellerbach Family Fund3
- Zoecon Chemical Corporation1