Finance
The world's biggest privately held companies (October 3)
Published by Global Banking & Finance Review®
Posted on October 3, 2025
2 min readLast updated: January 21, 2026
Global Banking & Finance Review®
Company
Published by Global Banking & Finance Review®
Posted on October 3, 2025
2 min readLast updated: January 21, 2026
OpenAI leads as the most valuable private company at $500 billion. Tether follows closely. AI interest boosts valuations. Data from Crunchbase.
(Corrects October 3 story to drop OpenSea from list after data provider's clarification)
(Reuters) -ChatGPT-parent OpenAI reportedly reached a valuation of $500 billion earlier this week, cementing its place as the most valuable privately held company in the world, according to Crunchbase data.
Another company potentially close to that valuation is crypto giant Tether. Bloomberg News reported last month that Tether was in talks to raise as much as $20 billion, which could value the firm at about $500 billion.
With investor enthusiasm for AI reshaping valuations across financial markets, here is a look at some of the biggest private companies worldwide:
Company Valuation Notable Company Industry
investors HQ
OpenAI $500 bln SoftBank United Software
States
SpaceX $400 bln Andreessen United Aerospace
Horowitz States
ByteDance $220 bln Sequoia China Software
Capital
Anthropic $183 bln ICONIQ United Software
Capital States
Ant Group $150 bln Alibaba China Software
Reliance $100 bln Abu Dhabi India Retail
Retail Investment
Authority
Databricks $100 bln Andreessen United Software
Horowitz States
Shein $66 bln Sequoia China Clothing
Capital
Stripe $65 bln Baillie United Software
Gifford States/Ir
eland
Reliance Jio $58 bln Meta, Google India Telecoms
xAI $50 bln Elon Musk United Software
States
Revolut $45 bln Tiger Global United Software
Kingdom
Waymo $45 bln Alphabet United Transportat
States ion
Canva $42 bln Fidelity Australia Software
Management
Checkout.com $40 bln Altimeter United Software
Kingdom
** Data is based on valuations set by investors during priced funding rounds for companies, according to data firm Crunchbase, as of October 3.
(Reporting by Shashwat Chauhan and Purvi Agarwal in Bengaluru; Editing by Shinjini Ganguli)
A privately held company is owned by individuals or groups and does not offer shares to the public. Its financial information is not required to be disclosed publicly.
Valuation is the process of determining the current worth of an asset or a company based on various factors, including market conditions, financial performance, and future growth potential.
A funding round is a stage in which a company raises capital from investors. It typically involves selling equity or debt to finance business operations and growth.
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