SpaceX leads U.S. private company valuations at $180 billion, followed by Stripe and Databricks. These companies have chosen to stay private despite valuations rivaling public market giants.
The Data
The largest private companies in America have valuations that would make them Fortune 500 members if they were public. Many have chosen to delay IPOs, enjoying the benefits of private ownership while accessing massive funding rounds.
| Rank | Company | Valuation | Industry |
|---|---|---|---|
| 1 | SpaceX | $180B | Aerospace |
| 2 | Stripe | $95B | Fintech |
| 3 | Databricks | $62B | Data/AI |
| 4 | OpenAI | $80B | AI |
| 5 | Anduril | $14B | Defense |
SpaceX is no longer private. On June 12, 2026 it completed the largest IPO in history (Nasdaq: SPCX) at a valuation near $1.77 trillion — nearly 10x the $180B figure below — and its first-day surge pushed Elon Musk past $1 trillion to become the world's first trillionaire. The ranking below reflects its final pre-IPO private valuation. See our live Elon Musk net worth counter for the latest.
Analysis
SpaceX dominated the private rankings right up until its 2026 IPO. Elon Musk's rocket company carried a valuation nearly double its closest private competitor, driven by Starlink's growth and NASA contracts — and then repriced to ~$1.77 trillion when it went public.
AI is the new frontier. OpenAI and Databricks represent the massive investor appetite for artificial intelligence companies.
Methodology
Valuations based on most recent funding rounds and secondary market transactions as reported by Forbes and PitchBook.