Youth Eastside Services | 1,758 followers on LinkedIn. A lifeline for kids and families. | Youth Eastside Services (YES) is the leading behavioral health service provider for children and youth, ages birth to 22, and their families in East King County. We provide evidence-based mental health counseling, substance use and co-occurring disorder counseling and treatment, early childhood behavioral health services, psychiatric services, and education and prevention programs. We help youth with: depression, grief, trauma, cultural, gender and sexual orientation identity issues, anxiety, ADHD, eating disorders, self-harming behaviors, and other challenges.