Artificial intelligence startups continue to dominate venture capital headlines in 2026, with major funding rounds and soaring valuations reshaping the global startup landscape. As investors pour billions into next-generation technologies, from AI infrastructure to autonomous systems, a recent report exploring the world of private businesses valued at US $1 billion or more, known as unicorns, has revealed the world’s most valuable private startups.

For this report, the team at BestBrokers analyzed the Crunchbase Unicorn Board’s list of private startups with a valuation of at least $1 billion, or the so-called ‘unicorns’. Data was also aggregated from PitchBook and several other sources on the largest private company funding rounds and company valuations throughout 2025 and 2026.

Data shows that Elon Musk’s SpaceX has emerged as the world’s most valuable private startup, reaching a staggering $1.25 trillion valuation following its merger with xAI, the billionaire’s other high-profile venture. The deal makes it the most valuable private company in history, overtaking OpenAI, the creator of ChatGPT, whose valuation has also surged to $840 billion after securing the largest investment ever made in a private company, a $110 billion backing from Nvidia, SoftBank, and Amazon.

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The Most Valuable Unicorn Startups as of March 2026

SpaceX – Aerospace & SpaceTech – United States – $1.25 trillion

OpenAI – AI – United States – $840 billion

ByteDance – Media & Entertainment – China – $480 billion

Anthropic – AI – United States – $380 billion

Stripe – Fintech – United States – $159 billion

Ant Group – Fintech – China – $150 billion

Databricks – AI – United States – $134 billion

Waymo – Robotics – United States – $126 billion

Reliance Retail – E-commerce – India – $101 billion

Revolut – Fintech – United Kingdom – $75 billion

Shein – E-commerce – Singapore – $66 billion

Reliance Jio – Telecommunications – India – $58 billion

Canva – Enterprise Tech – Australia – $42 billion

Ripple – Cryptocurrency – United States – $40 billion

Checkout.com – Fintech – United Kingdom – $40 billion

The Most Valuable Companies That Became Unicorns in 2026

  • Ricursive Intelligence – AI – United States – $4 billion 
  • Rain – Cryptocurrency & Blockchain – Bahrain – $1.9 billion 
  • Bedrock Robotics – Robotics – United States – $1.8 billion 
  • Roark – Defense & SecurityTech – United Kingdom – $1.8 billion 
  • Pomelo Care – HealthTech – United States – $1.7 billion 
  • Arena Intelligence – AI – United States – $1.7 billion 
  • Oxide – Cloud & Infrastructure – United States – $1.6 billion 
  • Varda Space Industries – Aerospace & SpaceTech – United States – $1.6 billion 
  • Upwind Security – Cybersecurity – United States – $1.5 billion 
  • Flapping Airplanes – AI – United States – $1.5 billion