GRAIL, Inc., a commercial-stage healthcare company, focuses on developing technologies for early cancer detection in the United States and internationally. It provides Galleri, a screening test for asymptomatic individuals over 50 years of age; and DAC, a diagnostic aid for cancer tests to accelerate diagnostic resolution for patients for whom there is a clinical suspicion of cancer. The company offers development services including support for ongoing clinical studies, pilot testing, research, and therapy development. It also develops minimal residual disease post-diagnostic tests. The company was incorporated in 2015 and is headquartered in Menlo Park, California.