Top 50 Largest Companies in the World by Market Cap (Updated Daily)

20th May 2026
The world’s biggest companies are changing faster than ever as AI, semiconductors, energy, banking and cloud computing reshape global markets. NVIDIA remains the world’s most valuable company in 2026, ahead of Alphabet, Apple and Microsoft, while semiconductor firms continue dominating the top of the global rankings. Below are the largest public companies in the world by market capitalization, updated daily using live market data. What Changed Today? Wednesday 20 May 2026 NVIDIA extended its lead as the world’s most valuable company, with its market capitalization climbing to roughly £3.992 trillion as investors continued pouring money into AI infrastructure, data-centre expansion and semiconductor demand. Alphabet remained firmly in second place ahead of Apple after another strong session for AI-linked technology stocks, while Microsoft and Amazon also continued benefiting from ongoing cloud-computing and artificial-intelligence spending. Semiconductor companies again dominated the global rankings. TSMC, Broadcom, SK Hynix, Micron Technology, AMD and Intel all remained among the world’s most valuable businesses as AI-chip demand continued driving one of the strongest investment themes across global markets. Tesla held above the £1 trillion mark as investors continued backing the company’s long-term ambitions in robotics, autonomous driving and AI systems. Healthcare giant Eli Lilly stayed among the top 15 most valuable companies globally as pharmaceutical and weight-loss drug demand continued supporting the sector. Chinese technology and banking groups including Tencent, Alibaba, China Construction Bank, Agricultural Bank of China and ICBC also remained firmly inside the global rankings as markets monitored Chinese economic stimulus expectations and broader global trade conditions. Energy giants Saudi Aramco, Exxon Mobil and Chevron continued holding major global positions despite ongoing volatility in oil markets and geopolitical uncertainty tied to energy supply concerns. Major financial institutions including JPMorgan Chase, Bank of America, Morgan Stanley, Visa, Mastercard and HSBC also remained among the world’s largest companies as investors continued reacting to interest-rate expectations and global economic forecasts. Top 10 Largest Companies by Market Cap — 20 May 2026 Rank Company Ticker Market Cap Country 1 NVIDIA NVDA £3.992T USA 2 Alphabet (Google) GOOG £3.484T USA 3 Apple AAPL £3.280T USA 4 Microsoft MSFT £2.316T USA 5 Amazon AMZN £2.084T USA 6 TSMC TSM £1.521T Taiwan 7 Broadcom AVGO £1.454T USA 8 Saudi Aramco 2222.SR £1.341T Saudi Arabia 9 Meta Platforms META £1.142T USA 10 Tesla TSLA £1.133T USA Market Note: The top 10 remains heavily dominated by U.S. technology and AI-linked companies. NVIDIA, Alphabet, Apple, Microsoft, Amazon, TSMC, Broadcom, Meta and Tesla show how much market value is now concentrated around AI infrastructure, cloud computing, chips, advertising platforms and data centres. Companies Ranked 11–20 Rank Company Ticker Market Cap Country 11 Samsung Electronics 005930.KS £899.22B South Korea 12 Walmart WMT £799.25B USA 13 Berkshire Hathaway BRK-B £774.27B USA 14 Eli Lilly LLY £680.54B USA 15 SK Hynix 000660.KS £614.59B South Korea 16 JPMorgan Chase JPM £592.00B USA 17 Micron Technology MU £588.76B USA 18 AMD AMD £504.45B USA 19 Exxon Mobil XOM £503.41B USA 20 Visa V £468.77B USA Market Note: The next group shows how the AI boom is spreading beyond Big Tech. Samsung, SK Hynix, Micron, AMD and Intel all sit near the top of global markets because memory chips, processors and semiconductor supply chains have become central to future growth. At the same time, Walmart, Berkshire Hathaway, Eli Lilly, JPMorgan, Exxon Mobil and Visa show that retail, healthcare, banking, energy and payments still carry huge global weight. Companies Ranked 21–30 Rank Company Ticker Market Cap Country 21 ASML ASML £420.27B Netherlands 22 Intel INTC £416.08B USA 23 Johnson & Johnson JNJ £413.67B USA 24 Tencent TCEHY £395.64B China 25 Oracle ORCL £389.93B USA 26 Costco COST £362.74B USA 27 Cisco CSCO £340.51B USA 28 Mastercard MA £329.89B USA 29 Caterpillar CAT £296.01B USA 30 Chevron CVX £293.52B USA Market Note: This section shows the wider infrastructure behind the AI economy. ASML, Oracle, Cisco, Mastercard and Caterpillar all benefit from different parts of the capital-spending cycle, from chipmaking equipment and cloud software to networks, payments and industrial machinery. Companies Ranked 31–40 Rank Company Ticker Market Cap Country 31 China Construction Bank 601939.SS £283.00B China 32 AbbVie ABBV £282.18B USA 33 Netflix NFLX £281.04B USA 34 Bank of America BAC £268.82B USA 35 UnitedHealth Group UNH £264.11B USA 36 Coca-Cola KO £263.34B USA 37 Lam Research LRCX £255.44B USA 38 Roche RO.SW £251.95B Switzerland 39 Agricultural Bank of China 601288.SS £248.30B China 40 Procter & Gamble PG £245.84B USA Market Note: Healthcare, banking and consumer names remain powerful even as AI dominates the top of the table. Roche, AbbVie, UnitedHealth, Coca-Cola and Procter & Gamble show that defensive sectors still command enormous investor confidence, while Chinese banks and Alibaba reflect the continued importance of China’s financial and technology markets. Companies Ranked 41–50 Rank Company Ticker Market Cap Country 41 Alibaba Group BABA £243.14B China 42 Palantir Technologies PLTR £242.27B USA 43 Applied Materials AMAT £241.28B USA 44 ICBC 1398.HK £233.88B China 45 HSBC HSBC £226.70B UK 46 Home Depot HD £225.07B USA 47 Morgan Stanley MS £223.42B USA 48 Philip Morris International PM £223.08B USA 49 General Electric GE £222.70B USA 50 Novartis NVS £214.47B Switzerland Market Note: The full top 50 shows a global market split between the AI economy and the old economy. Semiconductors, cloud computing and data centres are driving the fastest valuation shifts, but banks, oil majors, healthcare groups, consumer brands and industrial companies still make up a large share of the world’s most valuable businesses. Why This Ranking Matters The global market-cap leaderboard increasingly reflects where investors believe the future economy is heading. Artificial intelligence, semiconductors, cloud computing and data-centre infrastructure continue driving many of the largest valuation gains in global markets, helping U.S. technology firms maintain enormous dominance across worldwide equity markets. At the same time, energy giants, pharmaceutical companies, banks and industrial manufacturers remain among the most valuable businesses on the planet, showing how traditional industries still hold enormous global influence despite the rapid expansion of AI-related companies. The rankings also increasingly act as a real-time snapshot of broader global themes, including AI investment, energy demand, semiconductor competition, cloud expansion, geopolitical risk and shifting global capital flows.