Top 3 Tech Companies by Market Cap (2026)

As of May 2026, the top three technology companies by market capitalization are Nvidia ($5.2 trillion), Alphabet ($4.2-$4.7 trillion), and Apple ($3.9-$4.5 trillion).

Sources

• Largest Technology Companies by Market Cap in 2026 - AlphaSense
• The World's Largest Companies by Market Cap (May 2026): Tech Dominance and AI‑Po
• capital.com
• The Largest Companies by Market Cap in August 2026 - The Motley Fool
• visualcapitalist.com
• techbhavik.com

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