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Quest Diagnostics Incorporated provides diagnostic testing and services in the United States and internationally. The company develops and delivers diagnostic information services, such as routine, non-routine and advanced clinical testing, anatomic pathology testing, and other diagnostic information services. It offers diagnostic information services primarily under the Quest Diagnostics brand, as well as under the AmeriPath, Dermpath Diagnostics, ExamOne, and Quanum brands to physicians, hospitals, patients and consumers, health plans, government agencies, employers, retailers, pharmaceutical companies and insurers, and accountable care organizations through a network of laboratories, patient service centers, phlebotomists in physician offices, call centers and mobile phlebotomists, nurses, and other health and wellness professionals. The company also provides risk assessment services for the life insurance industry; and healthcare organizations and clinicians information technology solutions. Quest Diagnostics Incorporated was founded in 1967 and is headquartered in Secaucus, New Jersey.

Elekta AB (publ), a medical technology company, provides clinical solutions for treating cancer and brain disorders worldwide. The company offers Versa HD, a brain metastases solution; Elekta Unity for real-time MR visualization; Elekta Harmony, a linear accelerator; Elekta Infinity for treating a range of patients with simple-to-complex radiotherapy needs; Elekta Synergy, a digital accelerator for image guided radiation therapy; treatment and workflow management solutions; radiation and medical oncology; and other patient services. It also provides Elekta Studio, an image guided brachytherapy solution; ImagingRing, a mobile CT scanner; Oncentra Brachy, a smart tool that facilitate repetitive tasks; Venezia applicator that enables the oncologist to treat locally advanced cervical cancer; Elekta Flexitron afterloader for enabling the precise execution of all steps in the workflow; Geneva, an applicator for cervical cancer treatment; veterinary radiation therapy products; and Elekta Kaiku for personalized cancer care. In addition, the company offers stereotactic radiosurgery, such as Leksell Gamma Knife Icon for personalized radiation treatment; Leksell Gamma Knife Perfexion, a tool for radiosurgeons; and Elekta Esprit. Further, it provides neurosurgery products comprising Leksell Vantage Stereotactic System for intracranial neurosurgery; and Leksell Stereotactic System for minimally invasive stereotactic neurosurgery. The company was incorporated in 1972 and is headquartered in Stockholm, Sweden.

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.

Laboratory Corporation of America Holdings operates as a life sciences company that provides vital information to help doctors, hospitals, pharmaceutical companies, researchers, and patients make clear and confident decisions. It operates in two segments, Labcorp Diagnostics (Dx) and Biopharma Laboratory Services (BLS). The company offers various tests, such as blood chemistry analyses, urinalyses, blood cell counts, thyroid tests, PAP tests, hemoglobin A1C and vitamin D, prostate-specific antigens, tests for sexually transmitted diseases, hepatitis C tests, microbiology cultures and procedures, and alcohol and other substance-abuse tests. It also provides specialty testing services comprising gene-based and esoteric testing; advanced tests target specific diseases; services related to anatomic pathology/oncology, cardiovascular disease, coagulation, diagnostic genetics, endocrinology, infectious disease, women's health, pharmacogenetics, parentage and donor testing, occupational testing services, medical drug monitoring services, chronic disease programs, and kidney stone prevention tests; and health and wellness services to employers and managed care organizations (MCOs), including health fairs, on-site and at-home testing, vaccinations, and health screenings. In addition, the company offers online and mobile applications that enable patients to check test results; online applications for providers, MCOs, and accountable care organizations; and drug development, medical device, and companion diagnostic development solutions from early-stage research to clinical development, as well as support for crop protection and chemical testing. It serves pharmaceutical, biotechnology, medical device, and diagnostics companies; and MCOs, employer plans, other health insurance providers, governmental agencies, physicians and other healthcare providers, hospitals and health systems, employers, patients and consumers, contract research organizations, crop protection and chemical companies, academic institutions, independent clinical laboratories, and retailers. The company was incorporated in 1994 and is headquartered in Burlington, North Carolina.

Invitae Corporation, a medical genetics company, that provides genetic information to improve healthcare of people in the United States, Canada, and internationally. The company offers genetic tests in various clinical areas, including hereditary cancer, precision oncology, women's health, rare diseases, and pharmacogenomics; digital health solutions; and health data services. It serves patients, healthcare providers, biopharma companies, and other partners. The company was formerly known as Locus Development, Inc. and changed its name to Invitae Corporation in 2012. Invitae Corporation was incorporated in 2010 and is headquartered in San Francisco, California.