In an article in Public Health Reports, National Institutes of Health (NIH) and Centers for Disease Control and Prevention (CDC) researchers examined the sponsors for publications included in systematic reviews used by the Community Preventive Services Task Force (CPSTF) to make evidence-based recommendations about preventive services, programs, and policies in community settings to improve public health during a 9-year period. They assessed study publications used in these reviews for sources of support; classified sources as government, nonprofit, industry, or no identified support. They also identified the country of origin for each sponsor and the most frequently mentioned sponsors. The authors concluded the evidence base used by the CPSTF was supported by an array of sponsors, with government agencies providing the most support. Study findings highlight the need for sponsorship transparency and the role of government as a leading supporter of studies that underpin CPSTF recommendations for improving public health.