Youth suicide is an urgent public health problem. However, schools often lack standardized protocols for suicide intervention, and many school-based mental health professionals are not prepared adequately to assess and respond to students at risk for suicide. This paper describes a professional development workshop, Helping Students At-Risk for Suicide, developed collaboratively by a state school psychology association, a state Office of Mental Health Suicide Prevention Center, and a university center. The workshop includes an integrated theoretical model of risk that serves as a foundation, introduces standardized procedures and evidence-based tools, and provides support for a collaborative process that guides school personnel from risk assessment through the student's safe return to school. Results of preliminary evaluations of the workshop, including pilot testing (N = 71) and satisfaction data from workshop participants (N = 251) are presented, in addition to other evidence of impact and future directions.