Trending Step 1 of 10

#10 Berkshire Hathaway

Opening our top 10 companies by market cap in 2026 is the great outlier – the one name near the summit that isn’t a technology company. Berkshire Hathaway, the conglomerate built by Warren Buffett, is a holding company that owns everything from insurance giant GEICO to the BNSF railroad, plus enormous stakes in public companies. With a market cap in the trillion-dollar range, it proves that old-fashioned value investing can still compete with the AI titans above it – even in a year when tech dominates almost everything.

Key facts

  • Market cap: ~$1.0-1.1 trillion (approximate – confirm on publish day)
  • Sector: Diversified holding company (insurance, rail, energy, consumer)
  • Founded: Textile roots dating to the 1800s; transformed by Buffett from the 1960s
  • Why it matters: The market's most famous long-term investor, and proof value still scales

Why it ranks here

  • It's the only non-tech name this high, a rare feat in an AI-driven market.
  • Its sprawling holdings make it a bet on the broad economy rather than a single trend.
  • A leadership transition era makes its every move closely watched.