Japan is one of Asia’s most developed economies and home to some of the world’s most successful entrepreneurs, investors and business families. Its wealthiest people have built fortunes across technology, fashion, retail, beverages, manufacturing, semiconductors, real estate and finance.
According to Forbes’ 2026 Japan’s 50 Richest ranking, the combined wealth of Japan’s 50 richest people and families reached approximately $294 billion, up 29% from $228 billion the previous year. The increase was helped by a strong Japanese stock market and the global artificial intelligence boom.
The biggest change at the top was the return of Masayoshi Son, founder and CEO of SoftBank Group, to the No. 1 position. His wealth rose dramatically following SoftBank’s multibillion-dollar investment in OpenAI.
Who Is the Richest Person in Japan in 2026?
Masayoshi Son is Japan’s richest person on Forbes’ 2026 Japan’s 50 Richest list.
Forbes estimated Son’s fortune at $80 billion based on stock prices and exchange rates as of May 22, 2026. His wealth increased by $51.8 billion, or 184%, making him the biggest dollar and percentage gainer on the list.
Son founded SoftBank and has transformed it from a telecommunications and technology company into a global investment powerhouse. SoftBank's aggressive investments in artificial intelligence have become an important part of his wealth story.
Forbes reported that SoftBank recorded a record ¥5 trillion ($31 billion) net profit for the fiscal year ended March 31, 2026, following its major investment in OpenAI.
Top 10 Richest People in Japan in 2026
Forbes’ 2026 Japan’s 50 Richest ranking lists the following individuals and families among Japan’s wealthiest:
Rank | Billionaire / Family | Main Source of Wealth | Net Worth |
|---|---|---|---|
1 | Masayoshi Son | Technology & Investments | $80.0B |
2 | Tadashi Yanai & family | Fashion Retail | $65.0B |
3 | Takemitsu Takizaki | Sensors & Technology | $23.6B |
4 | Nobutada Saji | Beverages | $9.3B |
5 | Sekiya family | Semiconductor Equipment | $9.1B |
6 | Yasumitsu Shigeta | Telecommunications | $6.0B |
7 | Takao Yasuda | Retail | $4.7B |
8 | Hideyuki Busujima | Manufacturing | $4.6B |
9 | Toichi Takenaka | Real Estate | $4.0B |
10 | Akira Mori | Real Estate | $3.95B |
These are Forbes’ annual 2026 ranking estimates, calculated using stock prices and exchange rates as of May 22, 2026. Real-time wealth figures can differ as market prices change.
1. Masayoshi Son
Masayoshi Son is the founder and CEO of SoftBank Group and Japan’s richest person in Forbes’ 2026 ranking.
His estimated fortune reached $80 billion, representing an extraordinary increase of $51.8 billion over the previous year.
Son has spent decades investing in technology companies around the world. SoftBank's Vision Funds have invested in hundreds of companies, including major businesses in transportation, e-commerce and technology.
Artificial intelligence has become the central theme of Son's current investment strategy. SoftBank has committed billions of dollars to AI projects, including the Stargate AI infrastructure initiative involving OpenAI, Oracle and MGX.
His return to the top of Japan's wealth ranking demonstrates how quickly fortunes can change when technology investments perform strongly.
2. Tadashi Yanai & Family
Tadashi Yanai, founder of Fast Retailing, ranks second with a family fortune of approximately $65 billion.
Fast Retailing is the parent company of Uniqlo, one of the world's largest clothing retailers. The company also owns brands including GU, Theory and Helmut Lang.
Yanai's fortune increased by more than one-third in the period measured by Forbes, supported by strong revenue and profit growth at Fast Retailing.
Uniqlo has expanded far beyond Japan and has thousands of stores across international markets. Yanai has stated an ambition for Fast Retailing to become the world's largest retailer.
Although Yanai lost the No. 1 position to Son in 2026, he remains one of Japan's most influential self-made entrepreneurs.
3. Takemitsu Takizaki
Takemitsu Takizaki is the founder of Keyence, a leading supplier of sensors and electronic components used in factory automation.
Forbes ranked him third with an estimated fortune of $23.6 billion.
Keyence serves customers across industries including automobile manufacturing, electronics and food packaging.
The company has a particularly strong international presence, with overseas sales accounting for roughly two-thirds of its revenue.
Takizaki stepped down as chairman in 2015 but remains on the company's board and serves as honorary chairman.
4. Nobutada Saji
Nobutada Saji ranks fourth among Japan's richest people with a fortune of approximately $9.3 billion.
His wealth is associated with Suntory Holdings, one of Japan's best-known beverage companies.
Suntory operates across alcoholic and non-alcoholic beverages and has expanded internationally through acquisitions and global brands.
Saji's position demonstrates the continued importance of consumer brands in Japan's billionaire economy.
5. Sekiya Family
The Sekiya family ranks fifth with a combined fortune of approximately $9.1 billion.
Their wealth is connected to Disco, a Japanese manufacturer of semiconductor production equipment.
The family's fortune increased significantly in 2026 as Disco's shares more than doubled amid strong demand for equipment related to artificial intelligence. Forbes reported that the family added approximately $4.1 billion to its fortune during the measured period.
The rise of the Sekiya family highlights the growing financial importance of AI-related semiconductor infrastructure.
6. Yasumitsu Shigeta
Yasumitsu Shigeta ranks sixth with an estimated fortune of approximately $6 billion.
His wealth is associated with telecommunications and technology-related businesses.
Japan's telecommunications sector has remained an important source of wealth as consumers and businesses increasingly depend on mobile connectivity, digital services and high-speed networks.
7. Takao Yasuda
Takao Yasuda ranks seventh with an estimated fortune of $4.7 billion.
He is best known for his success in the Japanese retail sector.
Japan's retail market remains one of the world's largest and most sophisticated, with consumers supporting everything from discount chains and convenience stores to luxury brands and specialized retailers.
8. Hideyuki Busujima
Hideyuki Busujima ranks eighth with approximately $4.6 billion.
His wealth is associated with manufacturing and the business interests established by his family.
The Busujima family's business success reflects Japan's long-standing strength in precision manufacturing and industrial products.
9. Toichi Takenaka
Toichi Takenaka ranks ninth with an estimated fortune of approximately $4 billion.
His wealth is connected to real estate and property-related investments.
Real estate remains an important source of wealth in Japan, particularly in major metropolitan markets such as Tokyo.
10. Akira Mori
Akira Mori rounds out the top 10 with an estimated fortune of approximately $3.95 billion.
Mori is associated with Mori Trust, a major Japanese real estate company.
The company has developed and invested in office buildings, hotels and other properties, making Mori one of Japan's most prominent real estate billionaires.
Why Is Japan Home to So Many Billionaires?
Japan's wealthiest people come from a diverse range of industries.
Technology and AI
Technology is increasingly important to Japan's billionaire economy. Masayoshi Son's SoftBank has made artificial intelligence a central investment theme, while semiconductor-related businesses such as Keyence and Disco have benefited from AI-driven demand.
Fashion and Retail
Tadashi Yanai's Uniqlo empire demonstrates how a Japanese consumer brand can become a global business.
Fast Retailing's international expansion has helped turn Yanai into one of the world's wealthiest fashion entrepreneurs.
Manufacturing
Japan has a long history of precision manufacturing, industrial automation and advanced technology. Keyence and other industrial companies have benefited from global demand for sophisticated manufacturing systems.
Beverages and Consumer Brands
Suntory and other Japanese consumer companies have built powerful brands in both domestic and international markets.
Real Estate
Real estate continues to create significant wealth, particularly through commercial developments, hotels and major urban projects.
AI Is Reshaping Japan's Billionaire Economy
One of the biggest stories behind Japan's 2026 billionaire rankings is artificial intelligence.
The Nikkei 225 index rose nearly 70% between the previous wealth measurement and May 22, 2026, driven partly by enthusiasm surrounding AI.
This created major gains for technology investors.
Masayoshi Son benefited from SoftBank's massive AI investments, while the Sekiya family gained from strong demand for semiconductor manufacturing equipment. Keyence founder Takemitsu Takizaki also benefited from the continuing importance of automation and industrial technology.
The trend suggests that AI is not only creating new technology companies but also increasing the value of businesses that provide the infrastructure needed to build AI systems.
Japan's Wealthiest Entrepreneurs Are Becoming More Global
Many of Japan's richest business leaders have built companies with substantial international operations.
Uniqlo has expanded across dozens of countries, Keyence generates a large portion of its revenue outside Japan, and SoftBank invests in technology companies around the world.
This international focus has allowed Japanese entrepreneurs to benefit from global markets rather than relying exclusively on domestic economic growth.
The Future of Japan's Billionaires
The next generation of Japanese billionaire wealth could increasingly come from artificial intelligence, semiconductors, robotics, automation, renewable energy, biotechnology and digital infrastructure.
Japan already has a strong foundation in robotics and advanced manufacturing. Combined with its growing participation in the global AI ecosystem, these industries could produce new fortunes in the coming decade.
At the same time, established sectors such as retail, beverages and real estate are likely to remain important.
Final Thoughts
Japan's richest people in 2026 demonstrate the diversity of the country's economy.
Masayoshi Son leads the ranking after a dramatic increase in his fortune connected to SoftBank's AI investments. Tadashi Yanai remains a global retail powerhouse through Uniqlo, while Takemitsu Takizaki represents Japan's strength in industrial technology. The Sekiya family's rise highlights the growing importance of semiconductor equipment in the AI era.
Forbes' 2026 ranking shows that Japan's 50 richest people and families collectively control approximately $294 billion, a 29% increase from the previous year.
As artificial intelligence, advanced manufacturing and global technology investment continue to expand, Japan's billionaire landscape could become even more closely connected to the industries shaping the future.
FAQs
Who is the richest person in Japan in 2026?
Masayoshi Son, founder of SoftBank Group, is Japan's richest person on Forbes' 2026 Japan's 50 Richest list, with an estimated fortune of $80 billion.
Who is the second-richest person in Japan?
Tadashi Yanai and family, the owners of Fast Retailing and the Uniqlo brand, rank second with approximately $65 billion.
How much are Japan's 50 richest people worth?
Forbes estimates that Japan's 50 richest people and families had a combined fortune of approximately $294 billion in 2026.
Why did Masayoshi Son's wealth increase so much?
Son's fortune increased sharply because of the strong performance of SoftBank and its major investments in artificial intelligence, including its multibillion-dollar investment in OpenAI.
Who founded Uniqlo?
Uniqlo is owned by Fast Retailing, the Japanese retail group founded and led by Tadashi Yanai.
Who is Takemitsu Takizaki?
Takemitsu Takizaki is the founder of Keyence, a Japanese company that supplies sensors and electronic components for factory automation. He ranked third on Forbes' 2026 Japan's 50 Richest list with $23.6 billion.
Which industries create the most billionaire wealth in Japan?
Japan's richest people have built fortunes in technology, artificial intelligence, fashion, retail, manufacturing, semiconductors, beverages, telecommunications and real estate.
Is Japan's richest-person ranking fixed?
No. Forbes' annual ranking uses wealth estimates at a specific date. Changes in stock prices, exchange rates and company valuations can cause rankings to change significantly. Forbes' 2026 figures were based on market data through May 22, 2026.
How has AI affected Japan's richest people?
AI has significantly influenced Japan's 2026 billionaire rankings. SoftBank benefited from AI investments, while semiconductor-equipment companies experienced strong demand as global AI infrastructure expanded.
