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.

Elevance Health, Inc., together with its subsidiaries, operates as a health benefits company in the United States. The company operates through four segments: Health Benefits, CarelonRx, Carelon Services, and Corporate & Other. It offers a variety of health plans and services to program members; health products; an array of fee-based administrative managed care services; and specialty and other insurance products and services, such as stop loss, dental, vision, life, disability, and supplemental health insurance benefits. The company operates in the pharmacy services business; and markets and offers pharmacy services, including pharmacy benefit management, as well as home delivery and specialty pharmacies, claims adjudication, formulary management, pharmacy networks, rebate administration, a prescription drug database, and member services. In addition, it provides healthcare-related services and capabilities, including utilization management, behavioral health, integrated care delivery, palliative care, payment integrity services, subrogation services, and health and wellness programs, as well as services related to data management, information technology, and business operations. Further, the company is involved in the National Government Services business. The company provides its services under the Anthem Blue Cross and Blue Shield, Wellpoint, and Carelon brand names. The company was formerly known as Anthem, Inc. and changed its name to Elevance Health, Inc. in June 2022. Elevance Health, Inc. was incorporated in 2001 and is headquartered in Indianapolis, Indiana.

Humana Inc., together with its subsidiaries, provides medical and specialty insurance products in the United States. It operates through two segments, Insurance and CenterWell. The company offers medical and supplemental benefit plans to individuals. It has a contract with Centers for Medicare and Medicaid Services to administer the Limited Income Newly Eligible Transition prescription drug plan program; and contracts with various states to provide Medicaid, dual eligible, and long-term support services benefits. In addition, the company provides commercial fully-insured medical and specialty health insurance benefits comprising dental, vision, life insurance, and other supplemental health benefits, as well as administrative services only products to individuals and employer groups; military services, such as TRICARE T2017 East Region contract; and engages in the operations of pharmacy benefit manager business. Further, it operates pharmacies and senior focused primary care centers; and offers home solutions services, such as home health, hospice, and other services to its health plan members, as well as to third parties. The company sells its products through employers and employees, independent brokers and agents, sales representatives, and digital insurance agencies. The company was formerly known as Extendicare Inc. and changed its name to Humana Inc. in April 1974. Humana Inc. was founded in 1961 and is headquartered in Louisville, Kentucky.

Globe Life Inc., through its subsidiaries, provides various life and supplemental health insurance products, and annuities to lower middle- and middle-income families in the United States. The company operates in four segments: Life Insurance, Supplemental Health Insurance, Annuities, and Investments. It offers whole, term, and other life insurance products; Medicare supplement and supplemental health insurance products, such as accident, cancer, critical illness, heart, and intensive care plans; and single-premium and flexible-premium deferred annuities. The company sells its products through its direct to consumer division, exclusive agencies, and independent agents. The company was formerly known as Torchmark Corporation and changed its name to Globe Life Inc. in August 2019. Globe Life Inc. was founded in 1900 and is headquartered in McKinney, Texas.

Primerica, Inc., together with its subsidiaries, provides financial products and services to middle-income households in the United States and Canada. The company operates in four segments: Term Life Insurance; Investment and Savings Products; Senior Health; and Corporate and Other Distributed Products. The Term Life Insurance segment underwrites individual term life insurance products. The Investment and Savings Products segment provides mutual funds and various retirement plans, managed investments, variable and fixed annuities, and fixed indexed annuities. The Senior Health segment offers segregated funds; and medicare advantage and supplement plans. The Corporate and Other Distributed Products segment provides mortgage loans; prepaid legal services that assist subscribers with legal matters, such as drafting wills, living wills and powers of attorney, trial defense, and motor vehicle-related matters; ID theft defense services; auto and homeowners' insurance; home automation solutions; and insurance products, including supplemental and accidental death, and disability insurance. It distributes and sells its products through licensed sales representatives. Primerica, Inc. was founded in 1927 and is headquartered in Duluth, Georgia.

Selective Insurance Group, Inc., together with its subsidiaries, provides insurance products and services in the United States. The company operates through four segments: Standard Commercial Lines, Standard Personal Lines, E&S Lines, and Investments. It offers casualty insurance products that covers the financial consequences of employee injuries in the course of employment and bodily injury and/or property damage to a third party; property insurance products, which covers the accidental loss of an insured's real property, personal property, and/or earnings due to the property's loss; and flood insurance products. The company also invests in fixed income investments and commercial mortgage loans, as well as equity securities, short-term investments, and alternative investments, and other investments. It offers its insurance products and services to businesses, non-profit organizations, local government agencies, and individuals through independent retail agents and wholesale general agents. The company was founded in 1926 and is headquartered in Branchville, New Jersey.

eHealth, Inc. operates a health insurance marketplace that provides consumer engagement, education, and health insurance enrollment solutions in the United States. The company operates in two segments, Medicare; and Employer and Individual. The Medicare segment offers sale of Medicare-related health insurance plans, which includes Medicare advantage, Medicare Supplement, and Medicare Part D prescription drug plans to Medicare-eligible customers including but not limited to, dental, and vision insurance, as well as advertising program for marketing and other services. The Employer and Individual segment engages in the sale of individual, family, and small business health insurance plans; and ancillary products to non-Medicare-eligible customers including but not limited to, dental, vision, and short and long term disability insurance. In addition, the company provides ecommerce platforms and consumer engagement solutions, which includes market leading information, decision support, customer engagement, and transactional services to group of health insurance consumers; and organize and present the insurance information in objective format to individuals, families, and small businesses to research, analyze, compare and purchase health insurance plans. Further, it markets health insurance plans through its websites, including eHealth.com, eHealthInsurance.com, eHealthMedicare.com, Medicare.com, PlanPrescriber.com, and GoMedigap.com. The company also offers online sponsorship and advertising, non-broker of record, lead referral, technology licensing, as well as performs various post-enrollment services for members in Medicare health insurance plans. eHealth, Inc. was incorporated in 1997 and is headquartered in Austin, Texas.

GoHealth, Inc. operates as a health insurance marketplace and Medicare-focused digital health company in the United States. The company operates a technology platform that leverages machine-learning algorithms of insurance behavioral data to optimize the process for helping individuals find the health insurance plan for their specific needs. It provides Medicare plans, including Medicare Advantage, Medicare Supplement and Prescription Drug, and Medicare Special Needs Plans. The company also offers partner marketing services. It sells its products through carriers and online platform, as well as independent and external agencies. The company was founded in 2001 and is headquartered in Chicago, Illinois.