Ranking the Biggest Companies by Market Cap Globally

Do you know that Apple, Microsoft, and Nvidia are worth more than the economy of many countries? That’s how big some companies have grown today. We often hear the term “market cap” in the news or on social media. But what does it really mean? 

Simply put, it’s the total value of a company’s shares. It shows us how big and powerful a company is in the stock market.

Companies by market cap rankings change often. One new product, a big deal, or global news can move a company up or down the list. But some names, like Apple or Microsoft, seem to stay on top. Why? That’s what we’re here to explore.

Let’s look at the top companies by market cap. We’ll talk about who they are, what they do, and how they got so big. 

Global Top 10 Companies by Market Cap

Nvidia (NVDA)

Market Cap: Around $3.8-$3.9 trillion

Nvidia is now the world’s most valuable company by market cap, overtaking Microsoft. It makes chips called GPUs that power AI, data centers, and gaming. Its stock hit a record of $155 in late June, helped by a U.S.-China trade deal that eased export worries. Analysts like Ananda Baruah project Nvidia’s market cap could reach $6 trillion by 2028. It is driven by rising demand for AI infrastructure known as “AI factories”. 

The company earns most of its revenue from selling these specialized chips. Another big boost comes from its CUDA software, which developers use to build AI tools. Nvidia also recently released its RTX 50-series, powered by the new Blackwell architecture a big step forward in graphics tech. Nvidia with chip demand surging, especially for AI, looks set to stay on top for years to come.

Microsoft (MSFT)

Market Cap: About $3.7 trillion

Microsoft sits close behind Nvidia. Its strength lies in Azure, the cloud platform, and deep ties with OpenAI. Azure grew revenue by about 33% in Q3 2025. This makes up nearly 25% of the cloud market. Microsoft owns around 49% of OpenAI and gets a 20% revenue share from it this deal is expected to bring in billions through 2029. Experts like UBS and Morgan Stanley set price targets from $550 to $600, thanks to AI-driven growth. Its Office suite now includes AI tools like Copilot, and many businesses use Azure to build AI apps. Microsoft with steady profit margins (around 69%) and strong cloud ties, remains a top investment in AI and enterprise tech.

Apple Inc. (AAPL)

Market Cap: Around $3.0-3.01 trillion

Apple is the world’s top consumer-tech firm. By late June 2025, its market cap reached around $3 trillion, thanks to a stock price near $201 and 14.94 billion shares outstanding. We love Apple for its iPhones, Macs, iPads, Apple Watches, and AirPods. In Q2 2025, Apple made $95.4 billion in revenue. iPhones earned $46.8 billion, and its services like Music, iCloud, and the App Store hit a record $26.6 billion. Its wearables brought in another $7.5 billion.

Analysts say Apple’s value lies in its loyal customers and fast-growing services. Services rose 11% year-over-year and now drive much of its profit. Apple is also working on new products like XR headsets and smart glasses, and aim to lead in future tech. Firms like Wedbush think strong holiday sales and AI-enabled iPhones could push Apple to $4 trillion soon. The company feels solid, but its next moves will shape its future success.

Amazon.com Inc. (AMZN)

Market Cap: Around $2.35-2.37 trillion

Amazon holds the fourth spot, with a market cap of about $2.37 trillion in June 2025. The company offers global shopping and AWS cloud services. In Q1 2025, it made $155.7 billion in net sales a 9% increase from last year. AWS alone brought in $29.3 billion, growing 17% year-over-year.

Challenges come from trade tensions and rising tariffs. Goldman says these tariffs could cut $5-10 billion from its profits, and a recent profit forecast missed Wall Street’s estimate. Still, AWS leads with 30% of the global cloud market. Amazon is investing $100 billion this year in AI and cloud infrastructure. This strong cash flow and investments may ensure it stays on top despite some risks.

Alphabet Inc. (GOOGL)

Market Cap: About $2.1-2.2 trillion

Alphabet, Google’s parent, ranks fifth with a market cap near $2.1 trillion. In Q1 2025, it earned $90.2 billion, up 12% year-over-year. Google Search, YouTube ads, Android, and Google Cloud power its earnings. Cloud revenue grew 28% to $12.3 billion in Q1, and the division now makes over $43 billion yearly.

Alphabet’s deep AI investments are a key focus. It plans $75 billion in capital spending this year, much for AI and cloud infrastructure. Yet some investors are worried. Search faces competition from AI chatbots, and its P/E ratio (~19.6) is much lower than Nvidia’s (~56). 

Still, Alphabet owns strong businesses like Gemini AI, Waymo, and YouTube. In fact, Waymo launched robotaxis in Atlanta and is growing fast. The company may be undervalued right now but its AI bet could pay off big.

Meta Platforms Inc. (META)

Market Cap: Around $1.5-1.6 trillion

Meta, owner of Facebook, Instagram, WhatsApp, and Threads, is worth about $1.6 trillion . In Q1 2025, it earned $42.3 billion 16% more than a year earlier. Most of this comes from ads boosted by AI tools. UBS recently raised its price target from $683 to $812, citing strong confidence in Meta’s AI growth.

Meta also invested $14.3 billion in Scale AI and brought in Scale’s CEO to run its AI lab. It uses AI in ads, messaging, and devices like Quest VR. Reality Labs lost $4.2 billion this quarter, but smart glasses like Ray-Ban are gaining attention. Meta with Threads growing to 350 million users, shows its reach across social apps. Analysts say Meta’s AI and ad tools may make it a top AI stock in the near future.

Saudi Aramco

Market Cap: Around $1.57-1.60 trillion

Saudi Aramco is the world’s largest oil producer. Its market cap reached about $1.57 trillion in late June, with a P/E ratio near 14.6. In the past year, oil prices of $80-90 per barrel helped push its value up.

On a trailing twelve-month basis, Aramco earned $478 billion in revenue and $101 billion in net income, with a profit margin of about 22%. It also pays a 5.45% dividend yield. Its value depends on oil prices and global energy policies. It remains key in global energy, but faces long-term pressure from renewables and climate policy.

Berkshire Hathaway Inc. (BRK.A/B)

Market Cap: Around $1.05-1.05 trillion

Berkshire Hathaway, run by Warren Buffett, is worth about $1.05 trillion as of late June 2025. Its market cap rose by nearly 19% in the past year.

The firm owns insurance companies (like GEICO), BNSF railroad, and big stock stakes in Apple and Bank of America. It’s known for a patient, value-driven investment style. Class A shares trade around $730,700 per share. Berkshire also holds $259 billion in equity investments. Its massive cash reserves give it power to buy, even in tough times. It’s respected for long-term growth, though it lacks the flash of tech names.

Taiwan Semiconductor Manufacturing Company (TSMC)

Market Cap: About $870-970 billion

TSMC is the world’s largest chip manufacturer. Its market cap reached about $871.6 billion in May and possibly $971 billion in June. In Q1 2025, it posted a 42% revenue increase to $25.53 billion and a 60% net profit rise to $11.12 billion. May revenue was NT$320.5 billion up nearly 40% from last year.

TSMC makes leading-edge chips for Apple, Nvidia, AMD, and others. It leads in 3 nm and 2 nm chip tech. It’s building fabs in the U.S. and Japan to reduce risk and serve global clients better. Yet discipline around non-AI demand and trade issues may slow its long-term forecast. Still, it’s a key player in the AI chip boom.

Eli Lilly and Company (LLY)

Market Cap: Around $700-796 billion

Eli Lilly ranks about $700 billion in market value in June 2025. In Q4 2024, its revenue grew 45% to $13.53 billion, and profits doubled driven by diabetes and weight-loss drugs Mounjaro and Zepbound. For 2025, it expects $58-61 billion in revenue and EPS between $22.50 and $24 per share.

Its diabetes drug Mounjaro made $3.53 billion last quarter, and Zepbound $1.9 billion. Lilly is also growing its pipeline in oncology, neurology, and immunology. Despite some sales slowing, its forecast for profit and expansion into markets like China and India look promising. With strong drugs in demand, Lilly is well-positioned in healthcare.

Honorable Mentions: Big Players to Watch

Even though they’re not in the top 10 list right now, these companies are still huge players. Some were in the top before, while others are on their way up again. Let’s take a quick look at the ones worth watching closely:

Tesla Inc. (TSLA)

Tesla hovers around the $1 trillion mark. But its valuation isn’t stable. The company’s early robotaxi launch got some praise its stock surged nearly 10% after the Austin debut but sales in Europe dropped for the fifth straight month and its 2025 deliveries may underwhelm.

Analysts remain split: some envision it climbing to $1.5 trillion with AI and robotics growth, while others warn of falling deliveries and rising costs .

Visa Inc. (V)

Visa remains a top financial giant with a market value near $940 billion (≈ C$938 billion). It’s the backbone of global payments, handling billions of transactions worldwide. Growing digital commerce and travel support its steady rise, making it a strong player just outside the mega-cap club.

Johnson & Johnson (JNJ)

This healthcare leader has a market cap of about $395 billion as of March 2025. It pulled in $88.8 billion in revenue in 2024, driven by pharmaceuticals, medical devices, and consumer health goods. Its consistent cash flow and global operations keep it in the spotlight.

Samsung Electronics

South Korea’s tech champion floats around a ₩397.9 trillion valuation (≈ C$398 billion). It’s a leader in memory chips, smartphones, TVs, and appliances. Strong demand for semiconductors and innovation in 5G and AI chips help keep Samsung competitive worldwide.

Final Thoughts

Today companies by market cap leaderboard is dominated by tech and innovation. AI chips, cloud services, and consumer power create a new era of value. But energy, investments, and healthcare still matter. We’re living through big changes in where global money flows. Expect these rankings to shift as tech evolves and new giants rise.

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Disclaimer:

This content is made for learning only. It is not meant to give financial advice. Always check the facts yourself. Financial decisions need detailed research.