This document discusses the collaboration between Early Childhood Comprehensive Systems (ECCS) and Strengthening Families Illinois (SFI) at the state and local levels in Illinois. ECCS is housed within the Illinois Department of Human Services and coordinates various state-level collaboratives and initiatives focused on early childhood. SFI, within the Department of Children and Family Services, aims to embed protective factors into early childhood settings to strengthen families and prevent child abuse. At the local level, SFI Learning Networks and All Our Kids Early Childhood Networks collaborate through referrals and shared training opportunities focused on protective factors.