StageZero Life Sciences Ltd., a vertically integrated healthcare company, develops and commercializes proprietary molecular diagnostic tests for the early detection of diseases and personalized health management with a primary focus on cancer-related indications in the United States and Canada. Its proprietary platform technology is Sentinel Principle, which identifies novel biomarkers from whole blood. The company's lead product is Aristotle, a multi-cancer panel test for simultaneously screening for various cancers from a single sample of blood with high sensitivity and specificity for each cancer. It also offers ColonSentry, a blood test to determine an individual's current risk for having colorectal cancer; COVID polymerase chain reaction testing and blood test analysis; Prostate Health Index, a screening test for prostate cancer; and BreastSentry, a test to determine a woman's risk for developing breast cancer. The company was founded in 1998 and is headquartered in Richmond Hill, Canada.