GRAIL, Inc. operates as a commercial-stage healthcare company, which engages in the development of a technology for early detection of cancer. It utilizes machine learning, software, and automation to detect and identify multiple deadly cancer types in earlier stages. The company was founded by Jeffrey T. Huber, William H. Rastetter, Mostafa Ronaghi, and Richard D. Klausner on September 11, 2015 and is headquartered in Menlo Park, CA.