Quest Diagnostics is the leader in diagnostic information services, including Advanced Diagnostics and related information services, such as molecular and biochemical genetics, cytogenetics, and molecular hematology-oncology. The company’s suite of services combines state-of-the-art technologies in next generation sequencing and nucleic acids, special chemistry and biomarker detection, immunology, flow cytometry, and bioinformatics with deep interpretative expertise and digital enablement to guide clinical decisions across the continuum of care. The test menu in genetics and genomics includes single gene to whole exome/genome, covering both germline/constitutional and somatic disease conditions that address screening and diagnosis, prognosis, prediction, and prevention of diseases. Around the world, elite health systems refer their most challenging cases in hematology-oncology, genetics, women’s health, cardiovascular and other specialties to Quest Diagnostics for added diagnostic insights. The more than 50 years of history in laboratory medicine is a testimony of the expertise of Quest Diagnostics in the evolving practice of Precision Medicine. With its innovations, Quest Diagnostics aims to continually set higher expectations for quality, access, expertise, and clinical value.