Providing compassionate bereavement care for families experiencing perinatal loss is a standard of care in most healthcare organizations. In this article, we describe the development of The Alliance of Perinatal Bereavement Support Facilitators, begun over 25 years ago in Chicago by staff who identified the need to reach out to colleagues at other area institutions for advice and support in this work. This collaboration created a regional support network that has resulted in a long-lasting, active, sustainable organization of excellence focused on enhancing practice, education, and perinatal bereavement care. Alliance activities center around four main areas: education, networking/support, policy, and recognizing outstanding service to families. By continuing to draw upon the collective talent, wisdom, and expertise of its members, The Alliance still serves grieving families and provides mentoring for future interdisciplinary team members engaged in this work. The path taken to build this organization can be used by professionals in other specialties who are looking to create their own alliance infrastructure based on mutual benefit and interest.