This study describes the benefits of systematic universal screening (US) for school counselors engaged in the creation of effective, multi-tiered systems of support that address academic, social, emotional, and behavioral student concerns. The authors used an action research framework to present a case example of one school district's pilot of US and the role of the school counselor in the identification of students in need of social-emotional support. This article discusses implications for school counselor collaboration with other school-based mental health professionals.