In 2025, the health insurance industry in the United States is projected to be highly competitive. With advancements in clinical experience, modern technology, and data and health information, insurance companies are constantly evolving to provide the best coverage and benefits to their customers. In this blog, I will discuss the top 10 health insurance companies in the United States in 2024, based on their market share and direct written premiums.
1. United Health Group
United Health Group is the leading health insurance company in 2025, with direct written premiums of $176.7 billion and a market share of 14.1%. The company excels in clinical experience, modern technology, and data and health information. United Health Group has two platforms that serve customers and consumers in the United States and over 130 other countries. United Healthcare provides healthcare coverage and benefits, while Optum delivers information and technology-enabled health services. With an annual investment of over $4 billion in technology and innovation, United Health Group conducts over 1.1 trillion transactions.
2. Kaiser Foundation
Kaiser Foundation is a not-for-profit healthcare provider that offers a wide range of services to patients throughout the United States. With direct written premiums of $104.2 billion and a market share of 8.3%, Kaiser Foundation is one of the top health insurance companies in 2024. The institution provides services in areas such as allergy, audiology, cardiology, dermatology, oncology, hospice, laboratory, nephrology, occupational therapy, pain management, pediatric rehabilitation, and pharmacy.
3. Anthem Incorporated
Anthem Incorporated is dedicated to enhancing people’s lives and making healthcare more accessible. With direct written premiums of $76.9 billion and a market share of 6.2%, Anthem Incorporated serves over 106 million people through its connected enterprises. The company offers a variety of health plans, including HMOs, PPOs, network-based dental products, hybrid and specialty products, and health plan services. Individual members and corporate groups have the flexibility to choose from basic and extensive plans that suit their needs.
4. Centene Corporation
Centene Corporation focuses on uninsured and underinsured individuals and provides a portfolio of services to government-sponsored healthcare programs. With direct written premiums of $75 billion and a market share of 6%, Centene Corporation is a Fortune 500 company that administers local health plans and offers a variety of health insurance options. The company also collaborates with other healthcare and commercial organizations to provide specialty services, such as behavioral health, dental benefits, life and health insurance, pharmacy benefits management, and more.
5. Humana
Humana aims to provide individualized and simplified whole-person healthcare experiences to help members reach their optimal health. With direct written premiums of $73.9 billion and a market share of 5.9%, Humana develops innovative solutions and resources to cater to the ever-changing healthcare needs of individuals, families, and communities. The company offers a wide range of healthcare services and plans that can be tailored to meet the specific needs of its members.
6. CVS Health
CVS Health is a healthcare innovation firm that pioneers a new approach to comprehensive health. With direct written premiums of $69 billion and a market share of 5.5%, CVS Health provides various health services plans and community pharmacists to assist individuals in achieving better health. The company has walk-in medical clinics, a pharmacy benefits manager, a diversified healthcare benefits company, a dedicated senior pharmacy care business, expanding specialty pharmacy services, and a standalone Medicare Part D prescription drug plan.
7. HCSC
HCSC, the largest customer-owned healthcare insurance company in the United States, has a market share of 3.4% and direct written premiums of $42 billion. The company offers a comprehensive range of life and health insurance products and services through its affiliates and subsidiaries. HCSC serves over 16 million members in five states and provides access to a network of healthcare providers and services.
8. Cigna Corporation
Cigna Corporation is a worldwide health services company that offers a wide range of insurance plans and products. With direct written premiums of $31.8 billion and a market share of 2.5%, Cigna Corporation provides healthcare insurance for individuals and families, dental insurance plans, Medicare plans, Medicare supplementary plans, supplemental insurance, and overseas health insurance. The company aims to ensure that its clients and patients receive the best possible healthcare services.
9. Molina Healthcare Incorporated
Molina Healthcare Incorporated focuses solely on government-sponsored healthcare programs for qualifying individuals and families. With direct written premiums of $21.4 billion and a market share of 1.7%, Molina Healthcare works with state governments as a health plan to provide a wide range of high-quality healthcare services. The company offers health plans in several states and has been selected to participate in dual demonstration projects to manage the care for those eligible for Medicaid and Medicare.
10. Independence Health Group
Independence Health Group, based in Philadelphia, serves about 10 million clients in 27 states and the District of Columbia. With direct written premiums of $20.1 billion and a market share of 1.6%, Independence Health Group provides a range of services, including commercial, Medicare, and Medicaid coverage, pharmacy benefits management, workers’ compensation, and third-party benefits administration. The company is an independent licensee of the Blue Cross and Blue Shield Association.
These top 10 health insurance companies in the United States in 2024 are constantly striving to provide the best healthcare coverage and benefits to their customers. With their investments in technology, innovation, and a wide range of services, these companies aim to enhance people’s lives and make healthcare more accessible. Whether it’s through clinical experience, modern technology, or data and health information, these companies are at the forefront of the industry.
Overall, the insurance company in 2024 landscape is highly competitive, with these top 10 companies leading the way in terms of market share and direct written premiums. They serve millions of customers across the United States and offer a wide range of healthcare services and plans to suit individual needs. As the industry continues to evolve, these companies will play a crucial role in shaping the future of healthcare in the United States.