Top Healthcare Companies in USA List by Market Cap as of August 2026

ALNYLAM PHARMACEUTICALS is Biopharmaceutical company with headquarters is in Massachusetts, USA.ALNYLAM leaders from the biopharmaceutical industry, bringing together their experiences of drug discovery, drug development, and commercialization.Alnylam has led the translation of RNAi (RNA interference) from Nobel Prize-winning discovery into an innovative, entirely new class of medicines.

Zoetis is a Pharmaceutical company manufacturing medicine and vaccinations for animals. Headquarters is in USA. As on 2021, Zoetis have over 12,100 employees. Zoetis headquarters is in USA.

As on 2022, Zoetis has 13,800 employees.

Zoetis annual revenue generated for period ending Dec-2022 was 8,080 million USD.

Zoetis annual net income generated for period ending Dec-2022 was 2,114 million USD.

Illuminia is a Biotechnology company with headquarters is in USA. Illuminia is a global leader in genomics – an industry at the intersection of biology and technology. Illuminia enables their customers to read and understand genetic variations. Illuminia Genetic Solutions helping to treat patients which are not possible a few years back.

As on 2022, Illuminia has 10,200 employees.

Illuminia annual revenue generated for period ending Dec-2022 was 4,584 million USD.

Mettler-Toledo International manufactures technology products, precision instruments and services for many applications in research and development, quality, production, logistics and retail to customers around the world. Headquarters is in Ohio, USA.

As on 2022, Mettler-Toledo International has 18,000 employees.

Mettler-Toledo International annual revenue generated for period ending Dec-2022 was 3,919 million USD.

WellCare Health Plans is health insurance company with headquarters is in California, USA.

Centene acquired WellCare for 17.3 billion USD and completed the transaction in 2020.

Insmed is a Biopharmaceutical company. The headquarters is in USA.

QUEST DIAGNOSTICS provides diagnostics, research and testing laboratory services related to healthcare industry. Headquarters is in New Jersey, USA. It is derived from the world's largest database of clinical lab results, their diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management.

Quest Diagnostics total number of employees in 2022 was 49,000.

QUEST DIAGNOSTICS annual revenue generated for period ending Dec-2022 was 9,883 million USD.

Health care diagnostics company with headquarters is in North Carlina, USA.]

As on 2022, LABORATORY CORPORATION OF AMERICA HOLDINGS has 80,000 employees.

LABORATORY CORPORATION OF AMERICA HOLDINGS annual revenue generated for period ending Dec-2022 was 14,876 million USD.

LABORATORY CORPORATION OF AMERICA HOLDINGS annual net income generated for period ending Dec-2022 was 1,279 million USD.

Moderna is Biotechnology sector company with headquarters is in Massachusetts, USA. It has done good work on Covid-19 vaccine.

As on 2022, Moderna has 3,900 employees.

Moderna annual revenue generated for period ending Dec-2022 was 18.87 billion USD.

Moderna annual net income generated for period ending Dec-2022 was 8.36 billion USD.

Moderna annual revenue generated for period ending Dec-2021 was 16,471 million USD.

West Pharmaceutical Services is a manufacturer of packaging components and delivery systems for injectable drugs and healthcare products. It's technologies include the design and manufacture of packaging components, contract laboratory services, and other services. The headquarters is in USA.

As on 2022, West Pharmaceutical Services has 13,550 employees.

West Pharmaceutical Services annual revenue generated for period ending Dec-2022 was 2,886 million USD.