for 55 years, phi has accelerated the impact of public health. phi and its programs improve health, equity and wellness by discovering new research, strengthening key partnerships and programs, and advancing sound public health policies. our hundreds of programs have impacted millions of people, creating an architecture that will continue to impact communities for generations to come. phi’s curated portfolio focuses on the ideas, programs and individuals positioned to transform health. we restructure food systems. build the capacity of diverse public health and healthcare leaders, in the u.s. and globally. tackle emerging diseases. use tech to speed healthcare delivery. amplify local leaders. no idea is too small—or too big—to succeed. phi strengthens the work of public health and builds community power through three key roles: as a fiscal sponsor, as a thought leader and as a partner.