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Exact Sciences Corporation provides cancer screening and diagnostic test products in the United States and internationally. The company offers Cologuard, a non-invasive stool-based DNA screening test to detect DNA and hemoglobin biomarkers associated with colorectal cancer and pre-cancer. It also provides Oncotype DX Breast Recurrence Score Test; Oncotype DX Breast DCIS Score Test; Oncotype DX Colon Recurrence Score Test; OncoExTra Test for tumor profiling for patients with advanced, metastatic, refractory, relapsed, or recurrent cancer; and Covid-19 testing services. The company's pipeline products focus on enhancing the Cologuard test's performance characteristics and developing blood and other fluid-based tests. It has license agreements with MAYO Foundation for Medical Education and Research, and Johns Hopkins University. Exact Sciences Corporation was incorporated in 1995 and is headquartered in Madison, Wisconsin.

Guardant Health, Inc., a precision oncology company, provides blood and tissue tests, data sets, and analytics in the United States and internationally. The company provides Guardant360; Guardant360 LDT; Guardant360 CDx Test; Guardant360 Response Test; Guardant360 TissueNext Test; GuardantINFINITY Test; GuardantConnect, an integrated software-based solution designed for clinical and biopharmaceutical customers to connect patients tested with assays with actionable alterations with potentially relevant clinical studies; GuardantOMNI Test for advanced stage cancer; and GuardantINFORM, an in-silico research platform for tumor evolution and treatment resistance across various biomarker-driven cancers. It offers Shield Test; Guardant Reveal Test for adjuvant treatment selection in early-stage cancer patients; Smart Liquid Biopsy Platform; and Guardant Galaxy, an AI-backed digital pathology platform that helps improve cancer biomarker detection. In addition, the company offers development services, including companion diagnostic development and regulatory approval, clinical study setup, monitoring and maintenance, testing development and support, technologies licensing, and kits fulfillment. The company has a collaboration agreement with Illumina, Inc. for the sharing of specimen samples to advance cancer research. The company was incorporated in 2011 and is headquartered in Palo Alto, California.

Natera, Inc., a diagnostics company, develops and commercializes molecular testing services worldwide. Its products include Panorama, a non-invasive prenatal test that screens for chromosomal abnormalities of a fetus, as well as in twin pregnancies; Horizon carrier screening test for individuals and couples determine if they are carriers of genetic variations that cause certain genetic conditions; Vistara single-gene NIPT screens for 25 single-gene disorders that cause severe skeletal, cardiac, and neurological conditions; Spectrum, preimplantation genetic tests for couples undergoing IVF; Anora that analyzes miscarriage tissue from women; Empower, a hereditary cancer screening test; and non-invasive prenatal paternity product, which allows a couple to establish paternity without waiting for the child to be born. The company also provides Signatera, a ctDNA blood test for molecular residual disease assessment and surveillance of disease recurrence in patients previously diagnosed with cancer; Altera, a tissue based comprehensive genomic profiling test; Prospera to assess active rejection in patients who have undergone kidney, heart, and lung transplantation; and Renasight, a kidney gene panel test. In addition, it offers Constellation, a cloud-based software product that enables laboratory customers to gain access through the cloud to the company's algorithms and bioinformatics to validate and launch tests. The company offers products through its direct sales force, as well as through a network of laboratory and distribution partners. It has a partnership agreement with BGI Genomics Co., Ltd. to develop, manufacture, and commercialize NGS-based genetic testing assays; and Foundation Medicine, Inc. to develop and commercialize personalized circulating tumor DNA monitoring assays. The company was founded in 2003 and is headquartered in Austin, Texas.

Veracyte, Inc. operates as a diagnostics company in the United States and internationally. The company offers Afirma Genomic Sequencing Classifier for cancerous thyroid nodules; Decipher Prostate Biopsy and Radical Prostatectomy for prostate cancer diagnosis; Prosigna Breast Cancer Assay for breast cancer diagnosis; Percepta Nasal Swab Test for lung cancer diagnosis; and Envisia Genomic Classifier for diagnosing interstitial lung disease, including idiopathic pulmonary fibrosis. It is also developing Envisia Classifier, the nCounter analysis system; and LymphMark for lymphoma subtyping test. The company was formerly known as Calderome, Inc. and changed its name to Veracyte, Inc. in March 2008. Veracyte, Inc. was incorporated in 2006 and is headquartered in South San Francisco, California.