Walmart Inc. engages in the operation of retail, wholesale, other units, and eCommerce worldwide. The company operates through three segments: Walmart U.S., Walmart International, and Sam's Club. It operates supercenters, supermarkets, hypermarkets, warehouse clubs, cash and carry stores, and discount stores under Walmart and Walmart Neighborhood Market brands; membership-only warehouse clubs; ecommerce websites, such as walmart.com.mx, walmart.ca, flipkart.com, PhonePe and other sites; and mobile commerce applications. The company offers grocery and consumables, including dairy, meat, bakery, deli, produce, dry, chilled or frozen packaged foods, alcoholic and nonalcoholic beverages, floral, snack foods, candy, other grocery items, health and beauty aids, paper goods, laundry and home care, baby care, pet supplies, and other consumable items; fuel, tobacco and other categories. It is also involved in the provision of health and wellness products covering pharmacy, optical and hearing services, and over-the-counter drugs and other medical products; and home and apparel including home improvement, outdoor living, gardening, furniture, apparel, jewelry, tools and power equipment, housewares, toys, seasonal items, mattresses and tire and battery centers. In addition, the company offers consumer electronics and accessories, software, video games, office supplies, appliances, and third-party gift cards. Further, it operates digital payment platforms; and offers financial services and related products, including money transfers, bill payments, money orders, check cashing, prepaid access, co-branded credit cards, installment lending, and earned wage access. Additionally, the company markets lines of merchandise under private brands, including Allswell, Athletic Works, Equate, and Free Assembly. The company was formerly known as Wal-Mart Stores, Inc. and changed its name to Walmart Inc. in February 2018. Walmart Inc. was founded in 1945 and is based in Bentonville, Arkansas.

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.

McKesson Corporation provides healthcare services in the United States and internationally. It operates through four segments: U.S. Pharmaceutical, Prescription Technology Solutions (RxTS), Medical-Surgical Solutions, and International. The U.S. Pharmaceutical segment distributes branded, generic, specialty, biosimilar and over-the-counter pharmaceutical drugs, and other healthcare-related products. This segment also offers practice management, technology, clinical support, and business solutions to community-based oncology and other specialty practices; and consulting, outsourcing, technological, and other services, as well as sells financial, operational, and clinical solutions to pharmacies. The RxTS segment serves biopharma and life sciences partners, and patients to address medication challenges for patients by working across healthcare; connects patients, pharmacies, providers, pharmacy benefit managers, health plans, and biopharma companies to deliver innovative solutions to help people get the medicine needed to live healthier lives; and provides prescription price transparency, benefit insight, dispensing support, third-party logistics, and wholesale distribution support services. The Medical-Surgical Solutions segment offers medical-surgical supply distribution, logistics, and other services to healthcare providers, including physician offices, surgery centers, nursing homes, hospital reference labs, and home health care agencies. The International segment provides distribution and services to wholesale, institutional, and retail customers in Europe and Canada. McKesson Corporation was founded in 1833 and is headquartered in Irving, Texas.

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.

Cardinal Health, Inc. operates as a healthcare services and products company in the United States, Canada, Europe, Asia, and internationally. It provides customized solutions for hospitals, healthcare systems, pharmacies, ambulatory surgery centers, clinical laboratories, physician offices, and patients in the home. The company operates in two segments: Pharmaceutical and Specialty Solutions, and Global Medical Products and Distribution. It distributes branded and generic pharmaceutical, specialty pharmaceutical, and over-the-counter healthcare and consumer products, as well as medical supplies. The company also provides services to pharmaceutical manufacturers and healthcare providers for specialty pharmaceutical products; offers pharmacy management services to hospitals; operates pharmacies, including pharmacies in community health centers; and repackages generic pharmaceuticals and over-the-counter healthcare products. In addition, it manufactures, sources, and distributes Cardinal Health branded medical, surgical, and laboratory products and devices that include exam and surgical gloves; needles, syringe, and sharps disposals; compression solution, incontinence, nutritional delivery, and wound care products; single-use surgical drapes, gowns, and apparel products; fluid suction and collection systems; urology products; operating room supply products; and electrode product lines. Further, the company distributes a range of national brand products, including medical, surgical, and laboratory products; provides supply chain services and solutions to hospitals, ambulatory surgery centers, clinical laboratories, and other healthcare providers; and assembles and sells sterile, and non-sterile procedure kits. Additionally, it manufactures, prepares, delivers, and distributes radiopharmaceuticals and related treatments; and optimizes direct shipments through integrated technology solutions. The company was incorporated in 1979 and is headquartered in Dublin, Ohio.

Baxter International Inc., through its subsidiaries, develops and provides a portfolio of healthcare products worldwide. The company operates through four segments: Medical Products and Therapies, Healthcare Systems and Technologies, Pharmaceuticals, and Kidney Care. The company offers sterile intravenous (IV) solutions; infusion systems and devices; parenteral nutrition therapies; generic injectable pharmaceuticals; surgical hemostat and sealant products, advanced surgical equipment; smart bed systems; patient monitoring and diagnostic technologies; and respiratory health devices, as well as advanced equipment for the surgical space, including surgical video technologies, precision positioning devices, and other accessories. It also provides administrative sets; adhesion prevention products; inhaled anesthesia; drug compounding; chronic and acute dialysis therapies and services, including peritoneal dialysis (PD), hemodialysis (HD), continuous renal replacement therapies (CRRT), and other organ support therapies. The company's products are used in hospitals, kidney dialysis centers, nursing homes, rehabilitation centers, ambulatory surgery centers, doctors' offices, and patients at home under physician supervision. The company sells its products through direct sales force, as well as through independent distributors, drug wholesalers, and specialty pharmacy or other alternate site providers in approximately 100 countries. It has an agreement with Celerity Pharmaceutical, LLC to develop acute care generic injectable premix and oncolytic products; and a collaborative research agreement with Miromatrix Medical Inc. aiming to advance care for patients with acute liver failure. Baxter International Inc. was incorporated in 1931 and is headquartered in Deerfield, Illinois.

Bausch + Lomb Corporation operates as an eye health company in the United States, Puerto Rico, China, France, Japan, Germany, the United Kingdom, Canada, Russia, Spain, Italy, Mexico, Poland, South Korea, and internationally. It operates in three segments: Vision Care, Pharmaceuticals, and Surgical. The Vision Care segment provides contact lens that covers the spectrum of wearing modalities, including daily disposable and frequently replaced contact lenses; and contact lens care products comprising over-the-counter eye drops, eye vitamins, and mineral supplements that address various conditions, such as eye allergies, conjunctivitis, dry eye, and redness relief. Its Pharmaceuticals segment offers proprietary and generic pharmaceutical products for post-operative treatments, as well as for the treatment of glaucoma, eye inflammation, ocular hypertension, dry eyes, and retinal diseases. The Surgical segment provides medical device equipment, consumables, and technologies for the treatment of cataracts, corneal, vitreous, and retinal eye conditions; and intraocular lenses and delivery systems, phacoemulsification equipment, and other surgical instruments and devices for cataract surgery. The company sells its products and services through direct sales forces and independent distributors. Bausch + Lomb Corporation was founded in 1853 and is headquartered in Vaughan, Canada. Bausch + Lomb Corporation operates as a subsidiary of Bausch Health Companies Inc.

111, Inc., together with its subsidiaries, operates an integrated online and offline platform in the healthcare market in the People's Republic of China. It operates in two segments, B2C and B2B. The company sells medical and wellness products through online retail, and wholesale and retail pharmacies, as well as provides value-added services that include online consultation services and electronic prescription services to consumers. It offers prescription and over-the counter drugs, including western and traditional Chinese medicines; nutritional supplements, such as vitamins and dietary products; contact lenses; medical supplies and devices comprising bandages and thermometers; and personal care products consisting of skin care, birth control, sexual wellness products, and baby products. The company also operates an online marketplace where third-party sellers can directly sell to pharmacies; provides online loan application services to the clients of 1 Pharmacy, which include pharmacies and wholesalers; and data and supply chain integration services. In addition, it offers warehousing, logistics, procurement, research and development, and consulting services; and software development and information technology support services. The company operates offline retail pharmacies under the Yi Hao Pharmacy brand name in Guangdong, Guangzhou, Tianjin, and Kunshan. It serves pharmacies, pharmaceutical companies, medical professionals, and insurance companies. The company was formerly known as New Peak Group and changed its name to 111, Inc. in April 2018. 111, Inc. was founded in 2010 and is headquartered in Shanghai, the People's Republic of China.