Both policymakers and educators have identified the pressing need for clear and consistent pathways from two-year to four-year postsecondary institutions in STEM fields. Though numerous interventions for transfer pathways have been designed and implemented, there remains a need for effective and sustainable models of transfer partnership that address the specific needs of STEM transfer students. This report describes the key components of a successful program to initiate a community of practice for STEM transfer that supports a cultural shift from siloed colleges and universities to an interconnected system that centers student success.