The Largest Materials Companies by Market Cap in September 2026

BHP Group, Linde, and Rio Tinto Group are the biggest companies by market cap in the materials sector

By Lyle DalyUpdated Sep 8, 2026 at 11:52 AM EST | Fact-checked by Frank Bass

Key Points

  • BHP Group is the world's largest materials company with a market cap of $230 billion, largely driven by its global mining operations.
  • Linde focuses on chemical production and is increasing investments in clean energy.
  • Rio Tinto Group, a major miner, is expanding iron ore and copper projects globally.

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