Tesla

Tesla's market cap of approximately $1.2 trillion makes it by far the most valuable automaker in history, despite producing a fraction of the vehicles of Toyota or Volkswagen. The company's valuation rests on its dominant EV market share, its industry-leading battery technology, and the enormous optionality embedded in its Full Self-Driving software and Optimus humanoid robot program, which entered limited commercial deployment in Tesla factories in 2025. CEO Elon Musk's ties to the US government have complicated Tesla's international reputation but have opened new domestic opportunities.