TSMC is the most valuable company outside the United States at about $2.30 trillion, ahead of Saudi Aramco and Samsung. The 20 largest non-US companies are worth roughly $11.6 trillion together, according to a snapshot taken on October 13, 2026.
Outside the United States, the biggest companies are chip makers, oil producers and Chinese state-owned banks. Here are the 20 most valuable non-US companies by market capitalisation.
- TSMC (Taiwan) – $2.30 trillion: the world’s leading contract chip maker
- Saudi Aramco (Saudi Arabia) – $1.66 trillion: oil and gas
- Samsung (South Korea) – $1.13 trillion: electronics and memory chips
- SK Hynix (South Korea) – $766 billion: memory chips
- ASML (Netherlands) – $672 billion: chip-making lithography machines
- CXMT (China) – $497 billion: DRAM memory maker; its Shanghai shares rose about 466% on their July 2026 debut
- Tencent (China) – $488 billion: WeChat, games and fintech
- China Construction Bank (China) – $444 billion: state-owned bank
- Agricultural Bank of China (China) – $379 billion: state-owned bank
- Roche (Switzerland) – $357 billion: pharmaceuticals and diagnostics
- ICBC (China) – $347 billion: state-owned bank
- Bank of China (China) – $340 billion: state-owned bank
- HSBC (UK) – $323 billion: international bank
- Shell (UK) – $289 billion: oil, gas and energy
- Alibaba (China) – $276 billion: e-commerce and cloud
- Novartis (Switzerland) – $273 billion: pharmaceuticals
- Arm Holdings (UK) – $273 billion: chip designs
- Royal Bank of Canada (Canada) – $267 billion: banking
- Mitsubishi UFJ Financial (Japan) – $252 billion: banking group
- SAP (Germany) – $251 billion: business software
What the List Shows
Semiconductors lead: TSMC, Samsung, SK Hynix, ASML and CXMT together account for more than $5.3 trillion. China has seven entries, including four state-owned banks, Tencent, Alibaba and CXMT, which listed in Shanghai in July 2026 and became the country’s most valuable listed company on its debut, according to CNBC. The UK has three entries, while Switzerland and South Korea have two each. Saudi Aramco is the only company from the Middle East.
Adding up the 20 figures gives roughly $11.6 trillion, about a third of the $37.9 trillion in the US top 20. Valuations for the Korean chip makers differ widely between sources: StockAnalysis, for example, put SK Hynix at about 1,170 trillion won on October 12, 2026, which is higher than the figure used here.
The gap between first and second place is large: TSMC is about $640 billion ahead of Saudi Aramco and alone makes up about a fifth of the total. The smallest company on the list, SAP, is worth about $251 billion, only slightly more than Mitsubishi UFJ Financial, so the bottom of the ranking can change within days. The list ranks companies by market value, not by sales or profit, and uses the country shown by the data provider.
Market values change every trading day, and data providers use different share counts and timing, so figures differ between sources. This ranking uses a single snapshot from companiesmarketcap.com taken on October 13, 2026.
Image: The TSMC Global R&D Center in Hsinchu, Taiwan (file photo, 2023). Photo: 曾 成訓 / Wikimedia Commons (CC BY 2.0)
