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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.

GE HealthCare Technologies Inc. engages in the development, manufacture, and marketing of products, services, and complementary digital solutions used in the diagnosis, treatment, and monitoring of patients in the United States, Canada, and internationally. The company operates through four segments: Imaging, Ultrasound, Patient Care Solutions, and Pharmaceutical Diagnostics. The Imaging segment offers molecular imaging, computed tomography (CT) scanning, magnetic resonance (MR) imaging, image-guided therapy, X-ray systems, and women's health products. The Ultrasound segment provides medical devices and solutions for screening, diagnosis, treatment, and monitoring of certain diseases in clinical areas, such as radiology and primary care, women's health, cardiovascular, and point of care and handheld ultrasound solutions, as well as surgical visualization and guidance products. The Patient Care Solutions segment provides medical devices, consumables, services, and digital solutions. Its portfolio includes patient monitoring solutions, anesthesia delivery and respiratory care products, electrocardiogram solutions, maternal infant care products, and consumables and services. The Pharmaceutical Diagnostics supplies diagnostic agents, including CT, angiography and X-ray, MR, single-photon emission computed tomography, positron emission tomography, and ultrasound to the radiology and nuclear medicine industry. The segment also provides contrast media pharmaceuticals that are administered to a patient prior to certain diagnostic scans to increase the visibility of tissues or structures during imaging exams; and molecular imaging agents or radiopharmaceuticals, which are molecular tracers labeled with radioisotopes. It has an AI collaboration with Mass General Brigham. The company was formerly known as GE Healthcare Holding LLC and changed its name to GE HealthCare Technologies Inc. in December 2022. The company was incorporated in 2022 and is headquartered in Chicago, Illinois.

Hologic, Inc. develops, manufactures, and supplies diagnostics products, medical imaging systems, and surgical products for women's health through early detection and treatment. The company operates through four segments: Diagnostics, Breast Health, GYN Surgical, and Skeletal Health. It provides Aptima molecular diagnostic assays to detect the infectious microorganisms; Aptima viral load assays for Hepatitis B virus, Hepatitis C virus, human immunodeficiency virus, and human cytomegalo virus; Aptima bacterial vaginosis and candida vaginitis assays for the diagnosis of vaginitis; Aptima SARS-CoV-2 and Panther Fusion SARS-CoV-2 assays to detect SARS-CoV-2; ThinPrep System for cytology applications; and Rapid Fetal Fibronectin Test that assists physicians in assessing the risk of pre-term birth. The company also offers breast cancer care solutions in the areas of radiology, breast surgery, pathology, and treatment, such as 3D digital mammography systems, image analytics software, reading workstations, minimally invasive breast biopsy guidance systems, breast biopsy site markers, localization, specimen radiology, and connectivity solutions; and breast conserving surgery products. In addition, it provides MyoSure Hysteroscopic Tissue Removal System for the removal of fibroids and polyps in the uterus; NovaSure Endometrial Ablation System to treat abnormal uterine bleeding; Fluent Fluid Management System that provides liquid distention during diagnostic and operative hysteroscopic procedures; Acessa ProVu system to treat various fibroids; and CoolSeal portfolio, such as bipolar vessel sealing devices. Further, the company offers Horizon DXA, a dual energy X-ray system; and Fluoroscan Insight FD mini C-arm to perform minimally invasive orthopedic surgical procedures. It sells its products through direct sales, service forces, independent distributors, and sales representatives. Hologic, Inc. was incorporated in 1985 and is headquartered in Marlborough, Massachusetts.

Koninklijke Philips N.V. operates as a health technology company in North America, the Greater China, and internationally. The company operates through Diagnosis & Treatment Businesses, Connected Care Businesses, and Personal Health Businesses segments. It also provides diagnostic imaging solutions, includes magnetic resonance imaging, X-ray systems, and computed tomography (CT) systems and software comprising detector-based spectral CT solutions, as well as molecular and hybrid imaging solutions for nuclear medicine; echography solutions focused on diagnosis, treatment planning and guidance for cardiology, general imaging, obstetrics/gynecology, and point-of-care applications; integrated interventional systems, and interventional diagnostic and therapeutic devices to treat coronary artery and peripheral vascular disease. In addition, the company offers acute patient management solutions; emergency care solutions; sleep and respiratory care solutions; and electronic medical record and care management solutions. Further, it provides power toothbrushes, brush heads, and interdental cleaning and teeth whitening products; infant feeding, baby monitors, and digital parental solutions; and grooming and beauty products and solutions. The company has strategic partnership agreements with TriHealth, Northwell, and Atrium Health. The company was formerly known as Koninklijke Philips Electronics N.V. and changed its name to Koninklijke Philips N.V. in May 2013. Koninklijke Philips N.V. was founded in 1891 and is headquartered in Amsterdam, the Netherlands.