Last year, Clinicians for Wellness successfully raised $318.20 for the U-District Youth Center, a Seattle based non-profit. This organization provides social services for homeless youth with the eventual goal of having them transition to adult life.
I have not personally volunteered with this organization. However, a friend of mine was familiar with the great community work they do. Do not just take my word for it, see for yourself. Check out this link and the video below for more information.
Hope this helps,