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Exact Sciences, headquartered in Madison, Wisconsin, provides cancer screening and diagnostic test products in the United States and internationally. Exact's Cologuard screening test, a noninvasive stool-based DNA test, is a precancer screening test for colorectal cancer. The company also competes in the precision oncology market with Oncotype DX, a suite of tissue-based genomic tests for estimating recurrence risk and likelihood of benefit from chemotherapy for breast and colon cancer, and OncoExTra, a liquid-based comprehensive genomic profiling test. It is also developing liquid biopsy tests for molecular residual disease, colorectal cancer screening, and multicancer screening.
U.K.-listed Pearson is the world's largest educational provider. The company has been disposing of noncore businesses such as the Financial Times, The Economist, and publishing house Penguin, and is now focused on being an educational resource and testing provider. While Pearson's primary activity centres on higher-level education, the firm also has significant operations in providing clinical assessments, professional certification and testing.