SpaceX becomes America’s most valuable private company

Driven by Starlink’s revenue and Starship’s promise, SpaceX’s valuation climbed to about $400 billion in mid-2025, and by December 2025 it was reported to be in talks for a secondary share sale valuing the company near $800 billion — which would make it the most valuable private company in the United States.

For a company founded in 2002 that nearly went bankrupt after three Falcon 1 failures, reaching that valuation while still private is extraordinary. It reflects both Starlink’s rapid growth into a multibillion-dollar business and investor confidence that Starship will open even larger markets.

The valuation rests on two engines few rivals can match: Starlink, which turned a capital-intensive satellite network into a recurring, high-margin global subscription business, and a launch position so dominant that SpaceX is simultaneously the world’s cheapest provider and its own biggest customer. If Starship reaches full reusability and opens lunar, Mars and point-to-point markets, today’s figure may look conservative — which is why investors keep buying in at each successive round despite the company staying private.