(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)