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The Largest Consumer Staples Companies by Market Cap in May 2026

Walmart, Costco, and Procter & Gamble lead the consumer staples sector.

By Lyle Daly – Updated May 8, 2026 at 2:52 PM EST | Fact-checked by Frank Bass

Key Points

  • Walmart leads in market cap among consumer staples, holding a $1.05 trillion valuation.
  • Costco operates profitably due to membership fees covering operational costs.
  • Procter & Gamble distributes popular household brands globally across 180 countries.

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