Which companies are the biggest in the world? While not a simple question to answer, one way is to measure market capitalization, or more commonly, market cap.
Market cap is simply the total value of a company’s shares on the stock market, calculated by multiplying the share price by the number of outstanding shares.
As a result, Market cap can be considered a measure of how much investors believe a company is worth. It’s not the same as revenue or profit, and doesn’t account for assets and liabilities, but it’s a key indicator of scale and market influence.
Nvidia, known best for gaming GPUs, is the most valuable company in the world.
In mid-2025, tech and semiconductor firms lead the pack, driven by demand for AI, cloud computing, and consumer electronics. Here’s a look at the current top ten. Nvidia is the current leader, just ahead of Microsoft and Apple.
Top 10 most valuable public companies (June 2025)
1. Nvidia – 3.70 trillion USD
- Industry: Technology
- What they do: GPUs for AI, gaming, and data centers
2. Microsoft – 3.56 trillion USD
- Industry: Technology
- What they do: Software, cloud services, AI, enterprise tools
3. Apple – 3.00 trillion USD
- Industry: Technology
- What they do: iPhones, Macs, wearables, services
4. Amazon – 2.47 trillion USD
- Industry: E-commerce and Cloud
- What they do: Online retail, logistics, AWS cloud services
5. Alphabet (Google) – 2.28 trillion USD
- Industry: Technology
- What they do: Search, ads, YouTube, Android, cloud
6. Meta Platforms – 1.82 trillion USD
- Industry: Social Media and VR
- What they do: Facebook, Instagram, WhatsApp, metaverse tools
7. Saudi Aramco – 1.79 trillion USD
- Industry: Oil and Gas
- What they do: Crude oil production and refining
8. Tesla – 1.13 trillion USD
- Industry: Automotive and Energy
- What they do: Electric vehicles, solar energy, batteries
9. Broadcom – 1.10 trillion USD
- Industry: Semiconductors
- What they do: Chips for wireless, broadband, and enterprise systems
10. TSMC – 1.08 trillion USD
- Industry: Semiconductors
- What they do: Chip manufacturing for companies like Apple and Nvidia
With NVIDIA and Microsoft very close in total market cap, they have traded places a few times for the top spot throughout 2025.
Apple was once the top of the pile, and was the first company to cross the 3 trillion mark, back in 2022, but has since been overtaken by Microsoft and NVIDIA, largely thanks to the AI boom.
Content shared from www.dexerto.com.