UnitedHealth Group Incorporated operates as a diversified health care company in the United States. The company operates through four segments: UnitedHealthcare, Optum Health, Optum Insight, and Optum Rx. The UnitedHealthcare segment offers consumer-oriented health benefit plans and services for national employers, public sector employers, mid-sized employers, small businesses, and individuals; health care coverage, and health and well-being services to individuals age 50 and older addressing their needs; Medicaid plans, children's health insurance and health care programs; and health and dental benefits, and hospital and clinical services, as well as health care benefits products and services to state programs caring for the economically disadvantaged, medically underserved, and those without the benefit of employer-funded health care coverage. The Optum Health segment provides care delivery, care management, wellness and consumer engagement, and health financial services patients, consumers, care delivery systems, providers, employers, payers, and public-sector entities. The Optum Insight segment offers software and information products, advisory consulting arrangements, and managed services outsourcing contracts to hospital systems, physicians, health plans, governments, life sciences companies, and other organizations. The Optum Rx segment provides pharmacy care services and programs, including retail network contracting, home delivery, specialty and community health pharmacy services, infusion, and purchasing and clinical capabilities, as well as develops programs in the areas of step therapy, formulary management, drug adherence, and disease/drug therapy management. UnitedHealth Group Incorporated was founded in 1974 and is based in Minnetonka, Minnesota.

The Cigna Group, together with its subsidiaries, provides insurance and related products and services in the United States. Its Evernorth Health Services segment provides a range of coordinated and point solution health services, including pharmacy benefits, home delivery pharmacy, specialty pharmacy, distribution, and care delivery and management solutions to health plans, employers, government organizations, and health care providers. The company's Cigna Healthcare segment offers medical, pharmacy, behavioral health, dental, and other products and services for insured and self-insured customers; Medicare Advantage, Medicare Supplement, and Medicare Part D plans for seniors, as well as individual health insurance plans; and health care coverage in its international markets, as well as health care benefits for mobile individuals and employees of multinational organizations. In addition, it offers permanent insurance contracts sold to corporations to provide coverage on the lives of certain employees for financing employer-paid future benefit obligations. The company distributes its products and services through insurance brokers and consultants; directly to employers, unions and other groups, or individuals; and private and public exchanges. The company was formerly known as Cigna Corporation and changed its name to The Cigna Group in February 2023. The Cigna Group was founded in 1792 and is headquartered in Bloomfield, Connecticut.

HCA Healthcare, Inc., through its subsidiaries, owns and operates hospitals and related healthcare entities in the United States. It operates general and acute care hospitals that offers medical and surgical services, including inpatient care, intensive care, cardiac care, diagnostic, and emergency services; and outpatient services, such as outpatient surgery, laboratory, radiology, respiratory therapy, cardiology, and physical therapy. The company also operates outpatient health care facilities consisting of freestanding ambulatory surgery centers, freestanding emergency care facilities, urgent care facilities, walk-in clinics, diagnostic and imaging centers, rehabilitation and physical therapy centers, radiation and oncology therapy centers, physician practices, and various other facilities. In addition, it operates behavioral hospitals, which provide therapeutic programs comprising child, adolescent and adult psychiatric care, adolescent and adult alcohol, drug abuse treatment, and counseling services. The company was formerly known as HCA Holdings, Inc. HCA Healthcare, Inc. was founded in 1968 and is headquartered in Nashville, Tennessee.

CVS Health Corporation provides health solutions in the United States. It operates through Health Care Benefits, Health Services, and Pharmacy & Consumer Wellness segments. The Health Care Benefits segment offers traditional, voluntary, and consumer-directed health insurance products and related services. It serves employer groups, individuals, college students, part-time and hourly workers, health plans, health care providers, governmental units, government-sponsored plans, labor groups, and expatriates. The Health Services segment offers pharmacy benefit management solutions, including plan design and administration, formulary management, retail pharmacy network management, specialty and mail order pharmacy, clinical, disease management, and medical spend management services. It serves employers, insurance companies, unions, government employee groups, health plans, prescription drug plans, Medicaid managed care plans, CMS, plans offered on public health insurance, and other sponsors of health benefit plans. The Pharmacy & Consumer Wellness segment sells prescription and over-the-counter drugs, consumer health and beauty products, and personal care products. This segment also distributes prescription drugs; and provides related pharmacy consulting and other ancillary services to care facilities and other care settings. It operates online retail pharmacy websites, LTC pharmacies and on-site pharmacies, retail specialty pharmacy stores, compounding pharmacies and branches for infusion and enteral nutrition services. The company was formerly known as CVS Caremark Corporation and changed its name to CVS Health Corporation in September 2014. CVS Health Corporation was incorporated in 1996 and is headquartered in Woonsocket, Rhode Island.

Cencora, Inc. sources and distributes pharmaceutical products in the United States and internationally. The company's U.S. Healthcare Solutions segment distributes pharmaceuticals, over-the-counter healthcare products, home healthcare supplies and equipment, and related services to acute care hospitals and health systems, independent and chain retail pharmacies, mail order pharmacies, medical clinics, long-term care and alternate site pharmacies, and other customers; provides pharmacy management, staffing, and other consulting services; supply management software to retail and institutional healthcare providers; packaging solutions to institutional and retail healthcare providers; clinical trial support, product post-approval, and commercialization support services; data analytics, outcomes research, and other services for biotechnology and pharmaceutical manufacturers; pharmaceuticals, vaccines, parasiticides, diagnostics, micro feed ingredients, and other products to the companion animal and production animal markets; and sales force services to manufacturers. This segment also distributes plasma and other blood products, injectable pharmaceuticals, vaccines, and other specialty products; and offers other services to physicians who specialize in various disease states, such as oncology, as well as to other healthcare providers, including hospitals and dialysis clinics. Its International Healthcare Solutions segment provides international pharmaceutical wholesale and related service, and global commercialization services; distributes pharmaceuticals, other healthcare products, and related services to pharmacies, doctors, health centers, and hospitals; and offers specialty transportation and logistics services for the biopharmaceutical industry. The company was formerly known as AmerisourceBergen Corporation and changed its name to Cencora, Inc. in August 2023. Cencora, Inc. was founded in 1871 and is headquartered in Conshohocken, Pennsylvania.

Universal Health Services, Inc., through its subsidiaries, owns and operates acute care hospitals, and outpatient and behavioral health care facilities. It operates through Acute Care Hospital Services and Behavioral Health Care Services segments. The company's hospitals offer general and specialty surgery, internal medicine, obstetrics, emergency room care, radiology, oncology, diagnostic and coronary care, pediatric services, pharmacy services, and/or behavioral health services. It also provides commercial health insurance services; and various management services, which include central purchasing, information, finance and control systems, facilities planning, physician recruitment, administrative personnel management, marketing, and public relations services. Universal Health Services, Inc. founded in 1978 and is headquartered in King of Prussia, Pennsylvania.

Select Medical Holdings Corporation, through its subsidiaries, operates critical illness recovery hospitals, rehabilitation hospitals, outpatient rehabilitation clinics, and occupational health centers in the United States. It operates in four segments: Critical Illness Recovery Hospital, Rehabilitation Hospital, Outpatient Rehabilitation, and Concentra. The Critical Illness Recovery Hospital segment consists of hospitals that provide services for heart failure, infectious disease, respiratory failure and pulmonary disease, surgery requiring prolonged recovery, renal disease, neurological events, and trauma. The Rehabilitation Hospital segment offers therapy and rehabilitation treatments, including rehabilitative services for brain and spinal cord injuries, strokes, amputations, neurological disorders, orthopedic conditions, pediatric congenital or acquired disabilities, and cancer. The Outpatient Rehabilitation segment operates rehabilitation clinics that provide physical, occupational, and speech rehabilitation programs and services; and specialized programs, such as functional programs for work related injuries, hand therapy, post-concussion rehabilitation, pediatric and cancer rehabilitation, and athletic training services. The Concentra segment operates and provides occupational health centers, telemedicine platforms, onsite clinics, and contract services at employer worksites that deliver occupational health services, consumer health, physical therapy, and preventive care. Select Medical Holdings Corporation was founded in 1996 and is headquartered in Mechanicsburg, Pennsylvania.

Accolade, Inc., together with its subsidiaries, engages in the development and provision of personalized and technology-enabled solutions that help people to understand, navigate, and utilize the healthcare system and their workplace benefits in the United States. The company offers a platform with cloud-based intelligent technology and multimodal support from a team of advocates and clinicians, including registered nurses, physician medical directors, pharmacists, behavioral health specialists, women's health specialists, case management specialists, expert medical opinion providers, and primary care physicians. It also provides medical opinion services to commercial customers; and navigation, care, and advocacy solutions. In addition, the company offers medical consultations that connect patients to qualified condition-specific specialists for adult and pediatric care; and primary care and mental health support solutions. It serves employers who provide employees and their families a single place to turn for their health, healthcare, and benefits needs. The company was incorporated in 2007 and is headquartered in Seattle, Washington.