Organizational context, including line worker characteristics and service settings, may help explain the equivocal findings of intervention studies in the field of child welfare. Yet organizational context has been largely ignored in studies of child welfare interventions. The purpose of this article is to expound upon the likely role of the organizational context in explaining service effectiveness in child welfare. Several bodies of literature within child welfare and human service organization and administration are reviewed and synthesized. A conceptual framework that can be used to guide future child welfare research is then proposed. (Contains 1 figure.)