Finance
Factbox-The World's Biggest Privately Held Companies
Published by Global Banking & Finance Review®
Posted on April 22, 2026
2 min readLast updated: April 22, 2026
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Quick Summary
SpaceX is poised to pursue a blockbuster IPO valuing it between $1.75 trillion and over $2 trillion, potentially becoming one of the largest public offerings ever. Meanwhile, OpenAI’s valuation recently surged to around $852 billion, positioning it among the highest‑valued private companies globally
The World's Biggest Privately Held Companies and Their Latest Valuations
Overview of Top Private Companies by Valuation
April 22 (Reuters) - Elon Musk's rocket and satellite company SpaceX is targeting a valuation of $1.75 trillion when it goes public, which could instantly make it one of the biggest companies in the world.
SpaceX was last valued at $1 trillion after the company acquired artificial-intelligence startup xAI in February. The transaction valued xAI at $250 billion, Reuters reported.
ChatGPT-parent OpenAI and Anthropic are also reportedly racing to an IPO later this year.
With such blockbuster listings expected this year, here's a look at the biggest private companies in the world based on valuations set by investors during priced funding rounds for companies, according to PitchBook.
Company Valuations and Notable Investors
Summary Table of Leading Private Companies
Company Valuation Notable Company Industry
investors HQ
SpaceX $1.25 trln Andreessen United Aerospace
Horowitz States
OpenAI $852 bln SoftBank United Software
States
Anthropic $380 bln ICONIQ United Software
Capital States
ByteDance $300 bln General China Software
Atlantic
Stripe $159 bln Baillie United Financial
Gifford States Technology
Databricks $134 bln Andreessen United Software
Horowitz States
Waymo $126 bln Alphabet United Transportation
States
Reliance $100 bln Abu Dhabi India Retail
Retail Investment
Authority
Ant Group $78.6 bln Carlyle China Software
Group
Revolut $75 bln Tiger Global United Financial
Kingdom Technology
Scale AI $74.1 bln Tiger Global United Software
States
Shein $66 bln Sequoia China Clothing
Capital
Canva $42 bln Stack Australia Software
Capital
Checkout.c $40 bln Tiger Global United Software
om Kingdom
Key Insights and Market Trends
(Reporting by Shashwat Chauhan and Purvi Agarwal in Bengaluru; Editing by Shinjini Ganguli and Janane Venkatraman)
Key Takeaways
- •SpaceX aims for an IPO valuation of $1.75–$2 trillion, seeking to raise $50–75 billion and potentially becoming one of the largest listings in history. (finance.yahoo.com)
- •OpenAI achieved a landmark $122 billion fundraising round in April 2026 at a post‑money valuation of $852 billion, underscoring its meteoric rise in the AI sector. (sacra.com)
- •These valuations would place SpaceX and OpenAI among the world’s most valuable companies—if publicly traded—alongside tech giants like Nvidia, Alphabet, and Amazon. (lemonde.fr)
References
Frequently Asked Questions about Factbox-The world's biggest privately held companies
1Which is the world's largest privately held company by valuation?
SpaceX is currently the largest privately held company by valuation, targeting $1.75 trillion.
2What is the latest valuation of OpenAI?
OpenAI is valued at approximately $852 billion according to recent funding rounds.
3Which private tech companies are planning IPOs in 2024?
SpaceX, OpenAI, and Anthropic are reportedly planning IPOs in 2024.
4How are private company valuations determined?
Valuations are set by investors during priced funding rounds, as reported by PitchBook.
5What is the valuation of ByteDance?
ByteDance, the parent company of TikTok, is valued at $300 billion.
