Humana Inc. is a for-profit American health insurance company based in Louisville, Kentucky. As of 2014 Humana had over 13 million customers in the U.S.,[2] reported a 2013 revenue of US$41.3 billion,[3] and had 51,600 employees.[4] In 2018, the company ranked 56 on the Fortune 500 list,[5] which made it the highest ranked (by revenues) company based in Kentucky. It has been the third largest health insurance in the nation.[6] The U.S. Dept. of Health and Human Services investigated Humana in 2009 for sending flyers to Medicare recipients that the AARP characterized as deceptive. The company’s managed care model has also been criticized for ethical lapses and limitations. The health insurer Aetna said on July 3, 2015, that it had agreed to acquire its smaller rival Humana for $37 billion in cash and stock[7] but walked away from the deal after a court ruling that the merger would be anti-competitive.

Johnson & Johnson is an American multinational corporation founded in 1886 that develops medical devices, pharmaceutical and consumer packaged goods. Its common stock is a component of the Dow Jones Industrial Average and the company is ranked No. 37 on the 2018 Fortune 500 list of the largest United States corporations by total revenue. J&J is one of the world’s most valuable companies. Johnson & Johnson is headquartered in New Brunswick, New Jersey, the consumer division being located in Skillman, New Jersey. The corporation includes some 250 subsidiary companies with operations in 60 countries and products sold in over 175 countries. Johnson & Johnson had worldwide sales of $70.1 billion during calendar year 2015.[3] Johnson & Johnson’s brands include numerous household names of medications and first aid supplies. Among its well-known consumer products are the Band-Aid Brand line of bandages, Tylenol medications, Johnson’s Baby products, Neutrogena skin and beauty products, Clean & Clear facial wash and Acuvue contact lenses.

Laboratory Corporation of America Holdings, more commonly known as LabCorp, is an American S&P 500 company headquartered in Burlington, North Carolina. It operates one of the largest clinical laboratory networks in the world, with a United States network of 36 primary laboratories. Before a merger with National Health Laboratory in 1995, the company operated under the name Roche BioMedical. LabCorp performs its largest volume of specialty testing at its Center for Esoteric Testing in Burlington, North Carolina, where the company is headquartered. As of 2018, LabCorp processes 2.5 million lab tests weekly. LabCorp was an early pioneer of genomic testing using polymerase chain reaction (PCR) technology, at its Center for Molecular Biology and Pathology in Research Triangle Park, North Carolina, where it also performs other molecular diagnostics. It also does oncology testing, human immunodeficiency virus (HIV) genotyping and phenotyping. LabCorp also operates the National Genetics Institute, Inc. (NGI) in Los Angeles, California which develops PCR testing methods. LabCorp’s ViroMed facility, originally in Minnetonka, Minnesota until closing this site in 2013, is now housed in Burlington, NC and performs real-time PCR microbial testing using laboratory-developed assays. LabCorp also provides testing in Puerto Rico and, outside the United States, in three Canadian provinces. LabCorp utilizes seven PA-31-350’s and one PC-12 aircraft on nightly runs from Burlington, NC for use on the East Coast.

LifePoint Health is a company that provides healthcare services in growing regions, rural communities and small towns. It was established in 1999 and is headquartered in Brentwood, Tennessee. As of November 16, 2018, it operated 89 hospital campuses in 30 states with more than $6 billion in revenues. In 2011, the company was included in the Hospital Engagement Network by the Department of Health and Human Services, being the only private organization in the country.

Merck & Co., Inc., d.b.a. Merck Sharp & Dohme (MSD) outside the United States and Canada, is an American multinational pharmaceutical company and one of the largest pharmaceutical companies in the world. Merck is incorporated in New Jersey. [4] The company was established in 1891 as the United States subsidiary of the German company Merck, which was founded in 1668 by the Merck family. Merck & Co. was expropriated by the US government during World War I and subsequently established as an independent American company in 1917. While it operates as Merck & Co. in North America, the original Merck based in Darmstadt holds the rights to the Merck name everywhere else. Merck & Co. is the world’s seventh largest pharmaceutical company by market capitalization and revenue. Its headquarters is located in Kenilworth, New Jersey.[5] The company ranked No. 78 in the 2018 Fortune 500 list of the largest United States corporations by total revenue.[6] Merck & Co. publishes The Merck Manuals, a series of medical reference books for physicians, nurses, technicians, and veterinarians. These include the Merck Manual of Diagnosis and Therapy, the world’s best-selling medical reference. The Merck Index, a compendium of chemical compounds, was formerly published by Merck & Co. before being acquired by the Royal Society of Chemistry in 2012.

Owens & Minor, Inc. (NYSE: OMI) is a global healthcare solutions company with integrated technologies, products, and services aligned to deliver significant and sustained value for healthcare providers and manufacturers across the continuum of care. With 17,000 dedicated teammates serving healthcare industry customers in 90 countries, Owens & Minor helps to reduce total costs across the supply chain by optimizing episode and point-of-care performance, freeing up capital and clinical resources, and managing contracts to optimize financial performance. A Fortune 500 company, Owens & Minor was founded in 1882 in Richmond, Virginia, where it remains headquartered today. The company now has distribution, production, customer service and sales facilities located across the Asia Pacific region, Europe, Latin America, and North America.

Pfizer Inc. (NYSE: PFE, /?fa?z?r/)[2] is an American multinational pharmaceutical corporation headquartered in New York City was founded in 1849, based in New York City and was listed on New York Stock Exchange[3]. It is one of the world’s largest pharmaceutical companies.[4] It is listed on the New York Stock Exchange, and its shares have been a component of the Dow Jones Industrial Average since 2004.[5] Pfizer ranked No. 57 on the 2018 Fortune 500 list of the largest United States corporations by total revenue.[6] On December 19, 2018, Pfizer announced a joint merger of their consumer healthcare division with UK pharma giant GlaxoSmithKline; the British company will maintain a controlling share (listed at 68%).[7] The company develops and produces medicines and vaccines for a wide range of medical disciplines, including immunology, oncology, cardiology, endocrinology, and neurology. Its products include the blockbuster drug Lipitor (atorvastatin), used to lower LDL blood cholesterol; Lyrica (pregabalin) for neuropathic pain and fibromyalgia; Diflucan (fluconazole), an oral antifungal medication; Zithromax (azithromycin), an antibiotic; Viagra (sildenafil) for erectile dysfunction; and Celebrex (also Celebra, celecoxib), an anti-inflammatory drug. In 2016, Pfizer Inc. was expected to merge with Allergan, Plc to create the Ireland-based “Pfizer plc” in a deal that would have been worth $160 billion.[8] The merger was called off in April 2016, however, because of new rules from the United States Treasury against tax inversions, a method of avoiding taxes by merging with a foreign company.[9] The company has made the second-largest pharmaceutical settlement with the United States Department of Justice.

Tenet Healthcare Corporation is a multinational investor-owned healthcare services company based in Dallas, Texas, United States. Through its brands, subsidiaries, joint ventures, and partnerships,[4] including United Surgical Partners International (USPI),[5] the company operates a number of facility types.[6][7][8][9] At the end of 2018, Tenet had 115,500 employees and operated 68 hospitals with approximately 17,935 licensed beds, 23 surgical hospitals, and 475 outpatient centers. The company subsequently sold three hospitals in the Chicago area in January 2019, bringing the total hospital count to 65.[1] Since its founding in 1969,[10] Tenet has expanded significantly. Among other major acquisitions and formations, Tenet founded Conifer Health Solutions in 2008,[11] MedPost Urgent Care in 2014,[12] and in 2013 acquired Vanguard Health Systems, Inc., an investor-owned hospital company whose operations complemented Tenet’s existing business.[13] The acquisition created the third-largest investor-owned hospital company in the United States in terms of revenue and the third-largest in number of hospitals owned.[14] In 2015, Tenet acquired USPI, which created the largest operator of outpatient surgery centers in the United States.[5] In 2018, the company ranked 147th in the Fortune 500.

Walgreens Boots Alliance, Inc. is an American holding company headquartered in Deerfield, Illinois, that owns Walgreens, Boots, and a number of pharmaceutical manufacturing, wholesale, and distribution companies. The company was formed on December 31, 2014, after Walgreens purchased the 55% stake in UK and Switzerland-based Alliance Boots that it did not already own. The total price of the acquisition was $4.9 billion in cash and 144.3 million common shares with fair value of $10.7 billion.[2] Walgreens had previously purchased 45% of the company for $4.0 billion and 83.4 million common shares in August 2012 with an option to purchase the remaining shares within three years.[3] Walgreens became a subsidiary of the newly created company after the transactions were completed.[4] The company is organized into three divisions: Retail Pharmacy USA (Walgreens and Duane Reade), Retail Pharmacy International (Boots and other retail operations internationally), and Pharmaceutical Wholesale, incorporating Alliance Healthcare.[5] The new holding company began trading on the NASDAQ on December 31, 2014.[6] The combined business has operations in over 25 countries. Walgreens had formerly operated solely within the United States and its territories, while Alliance Boots operated a more international business. In October 2018, Walgreens Boots Alliance published its fourth quarter earnings report. Fiscal year 2018 sales were $131.5 billion, up 11.3% from fiscal 2017, and GAAP net earnings increased to $5.0 billion.[7] On June 26, 2018, Walgreens Boots Alliance replaced General Electric on the Dow Jones Industrial Index.