Sound Alliance’s dues-paying member institutions benefit from the leadership development of their own people, and believe in taking action for the common good together.
- Diocese of Olympia - Episcopal Church in Western Washington
- Friends of the Sound Alliance
- Health Equity Circle
- International Association of Heat & Frost Insulators & Allied Workers
- Saltwater Unitarian Universalist Church
- Society of Professional Engineering Employees in Aerospace (SPEEA)
- St. Mary's Catholic Church
- Swedish Family Medicine Residency Cherry Hill
- University Unitarian Church
- St Paul's Episcopal Church
- Wallingford Presbyterian Church
- Washington Education Association Staff Organization
- Woodland Park Presbyterian Church