The use of interorganizational relationships such as collaboration, partnerships, and alliances between public, private, and nonprofit organizations for the delivery of human services has increased. This article contributes to the growing body of knowledge on collaboration by exploring one kind of interorganizational relationship—interagency collaboration—in the field of early care and education. It examines variations within interagency collaborations and their impact on management and program outcomes. The findings show that interagency collaboration has a clear impact on management, program, and client outcomes: Specifically, the intensity of the collaborative relationship has a positive and statistically significant impact on staff compensation, staff turnover, and school readiness.