This commentary describes the development, vision, and initial progress of the newly-founded Boston Physical Activity Resource Collaborative (BPARC). Our aims are to move the field of physical activity forward, with broader dissemination and translation, by creating a local Boston and Massachusetts hub for researchers, practitioners, advocates, and policymakers. Participants come from multiple academic and medical centers, local advocacy groups, and government agencies, all of whom are working on components of physical activity promotion. We have had initial success in collaborating on study design, methodology, and grant applications. Future endeavors aim to produce streamlined methods and products with maximal impact for the field of physical activity research, policy, and practice.