AI Drives the Biggest Private Valuations in History
According to Forge’s data, OpenAI now sits at a $324 billion valuation, making it the most valuable private tech company in the world. SpaceX follows closely at $456 billion, cementing its dominance in space exploration and satellite communications.
Other leaders include:
Anthropic – $178 billion
xAI (Elon Musk’s AI startup) – $90 billion, now raising funds at a $200 billion target
Databricks – $100 billion
Stripe – $92 billion
Anduril (defense tech) – $53 billion
Together, these companies represent the cutting edge of artificial intelligence, defense technology, fintech, and aerospace—industries that are attracting unprecedented investor attention.
The demand for AI technology has skyrocketed across industries. From data analytics to defense systems, companies are racing to integrate AI into their business models. Forge CEO Kelly Rodriques explained:
“We’ve not seen this in the private market ever. Companies are growing at 100%, 200%, 300% on already huge numbers.”
The numbers back this up: 19 AI companies raised $65 billion in 2025 alone, representing nearly 77% of all private market capital. This massive influx of funding means many of these companies have little incentive to go public anytime soon.
Instead, they can continue scaling operations privately, building bigger data centers, developing next-generation AI models, and expanding global infrastructure.
Public Market Ripple Effects
While these companies remain private, their influence on public markets is undeniable. Consider these examples:
Oracle’s stock jumped 36% in a single day after announcing a major AI deal with OpenAI.
Broadcom signed a massive partnership with OpenAI, sending its stock soaring.
Microsoft’s early bet on OpenAI continues to deliver outsized returns.
Google, Meta, and Amazon have all boosted infrastructure spending to keep pace with AI demand.
This crossover shows that even though the companies themselves may not yet be listed, their deals and partnerships are directly shaping stock market performance.
Sam Altman Admits: “We Are in a Bubble”
Interestingly, even industry leaders are acknowledging how overheated the market feels. At a private dinner in San Francisco, OpenAI CEO Sam Altman admitted:
“These valuations are insane… we are in a bubble.”
Yet, despite calling out the bubble, Altman revealed OpenAI’s aggressive plans:
“You should expect OpenAI to spend trillions of dollars on datacenter construction. We will spend maybe more aggressively than any company who’s ever spent on anything… because we just have this very deep belief in what we’re seeing.”
In short, even if valuations are running hot, the scale of investment suggests AI adoption is only just beginning.
Defense Tech, Fintech, and Space Fuel the AI Race
While AI labs like OpenAI and Anthropic grab headlines, other sectors are quietly riding the same wave:
Anduril: With $53 billion in valuation, this defense tech firm is pouring money into military-grade AI. Forge even had to create a separate defense-focused investment fund to meet demand.
Stripe: The fintech giant remains a cornerstone in digital payments, valued at $92 billion, as AI-driven fraud detection and financial automation become more important.
SpaceX: Beyond rockets, its Starlink satellite internet network is critical infrastructure for global connectivity, making it a key player in the AI-driven world.
The Road Ahead: AI’s Billion-Dollar Arms Race
With xAI raising $10 billion at a $200 billion valuation, the AI arms race shows no signs of slowing. Private companies are raising billions to build infrastructure, train larger models, and develop AI-first products that will reshape industries.
For investors, this raises two critical questions:
How long will these companies remain private? With abundant private capital, IPOs may be delayed.
Are we truly in a bubble, or just at the start of an AI-driven economic era?
Final Thoughts
The private tech market crossing $1.3 trillion is more than just a financial milestone—it’s proof that AI is rewriting the rules of global innovation. OpenAI, SpaceX, Anthropic, xAI, Stripe, Databricks, and Anduril are shaping not only the private investment landscape but also influencing public markets in ways we’ve never seen before.
For now, investors and tech watchers alike can only buckle up. Whether this ends in a bubble burst or ushers in a new AI-powered economy, one thing is certain: the private tech boom is just getting started.
⚠️ Disclaimer
This article is for informational purposes only and does not constitute financial advice. Always conduct your own research or consult with a professional financial advisor before making investment decisions.