The Largest Healthcare Companies by Market Cap in September 2026

Eli Lilly, Johnson & Johnson, and AbbVie are the biggest companies by market cap in the healthcare sector

By Lyle Daly – Updated Sep 7, 2026 at 3:19 PM EST | Fact-checked by Frank Bass

Key Points

  • Eli Lilly leads as world's most valuable drug company with a market cap of $1.1 trillion.
  • Johnson & Johnson's market cap hits $663 billion, excelling in pharmaceuticals and medical devices.
  • AbbVie, valued at $453 billion, focuses on biotech for severe illnesses and offers high dividend yields.

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