Aetion is a health care technology company that delivers real-world evidence for life sciences, payers, providers, and regulatory agencies. The Aetion Evidence Platform analyzes data from the real world to produce transparent, rapid, and scientifically validated answers on treatments, costs, and outcomes. Founded by Harvard Medical School faculty members with decades of experience in epidemiology and health outcomes research, Aetion informs health care’s most critical decisions — what works best, for whom, and when — to guide treatment development, commercialization, and payment innovation into health care’s modern era.