About Masayoshi Son
Masayoshi Son is the founder and CEO of SoftBank Group Corp., one of the world's most influential technology conglomerates. Often described as Asia's most daring tech investor, Son has spent over four decades building SoftBank from a small software distribution company in Japan into a global technology powerhouse with investments spanning telecommunications, AI, semiconductors, and internet platforms.
Son is widely recognized for his prescient early bets, most notably his $20 million investment in Alibaba in 2000 — which grew into one of the most profitable venture investments in history, peaking at over $100 billion in value. He also orchestrated the $32 billion acquisition of ARM Holdings in 2016, positioning SoftBank at the center of the global semiconductor ecosystem.
In recent years, Son has pivoted SoftBank's strategy decisively toward artificial intelligence, declaring that AI is the defining technology of the century. Through the SoftBank Vision Fund and the Stargate Project, a joint venture with OpenAI and Oracle to build massive AI data centers in the United States, Son continues to shape the global AI landscape at an unprecedented scale.
Net Worth
Masayoshi Son's net worth is estimated at approximately $60 billion as of 2025, making him one of the wealthiest individuals in Japan and globally. His fortune is primarily tied to his controlling stake in SoftBank Group and the performance of its massive investment portfolio.
SoftBank Group is the cornerstone of Son's wealth. As the largest shareholder, his stake fluctuates with the company's market capitalization, which is heavily influenced by the performance of portfolio companies like ARM Holdings, and the Vision Fund's holdings.
Son's net worth has been highly volatile throughout his career. During the dot-com crash of 2000, he famously lost an estimated $70 billion in paper wealth — the largest personal financial loss in history at the time. His resilience in rebuilding his fortune through subsequent strategic bets is a defining aspect of his investment legacy.
Investment Strategy
Masayoshi Son's investment strategy is defined by bold, concentrated bets on transformative technologies at massive scale. He operates with a self-described "300-year vision" — believing that technology investments should be evaluated not on quarterly returns but on their potential to reshape entire industries over decades.
Son's approach through the SoftBank Vision Fund is characterized by writing exceptionally large checks — often $100 million to $10 billion per deal — to help portfolio companies achieve market dominance through aggressive growth. This strategy has been applied to ride-hailing (Uber, DiDi, Grab, Ola), real estate tech (WeWork), e-commerce (Coupang, Flipkart), and most recently, artificial intelligence.
Since 2023, Son has declared AI as SoftBank's singular strategic focus. He envisions a future where Artificial Super Intelligence (ASI) will emerge within the next decade and believes SoftBank must position itself at the center of this transformation — through chip design (ARM), AI infrastructure (Stargate), and AI applications. His willingness to take outsized risks on paradigm-shifting technologies remains the hallmark of his investment philosophy.
Notable Quotes
“I was born to realize Artificial Super Intelligence. That is why I am alive.”
— SoftBank Annual General Meeting, 2023
“In 30 years, the Singularity will happen. I truly believe this.”
— SoftBank Vision Fund announcement, 2017
“I invested based on my sense of smell. I could sense something big was coming from Jack Ma.”
— Interview on the Alibaba investment
“I lost $70 billion. But I never lost my vision.”
— Post dot-com crash interview
“ARM will be the brain of AI. Every AI chip, every intelligent device, will run on ARM architecture.”
— SoftBank World 2024
Contact Information
For business inquiries or investment-related communication with Masayoshi Son or SoftBank Group, the official corporate website is the primary point of contact. Please visit group.softbank/en/contact for detailed information.
For press and media inquiries, SoftBank Group maintains an active public relations department accessible through their corporate communications team. Masayoshi Son also occasionally shares updates and insights on his Twitter/X account.
Use Lessie to find verified contact information, mutual connections, and the best outreach strategy for reaching Masayoshi Son and similar investors.
Contact via LessiePublications
Masayoshi Son is not a prolific author, but his ideas and strategies have been extensively documented:
- SoftBank Annual Presentations: Son delivers highly detailed keynote presentations at SoftBank World and annual shareholder meetings, often outlining his long-term technology vision with detailed slides and data.
- Biography — "Aiming High" (志高く): A widely-read biography by Atsuo Inoue documenting Son's rise from humble beginnings in Japan to building one of the world's largest technology investment empires.
- Media Coverage: Extensive profiles and interviews in The Wall Street Journal, Bloomberg, Financial Times, Nikkei, and Forbes.
Podcast
Masayoshi Son is not a regular podcast host, but he frequently appears in keynote-style presentations and interviews:
- SoftBank World: SoftBank's annual technology conference where Son delivers extensive keynote addresses on AI, technology trends, and SoftBank's strategic direction.
- Bloomberg, CNBC, Nikkei: Regular appearances on major business networks discussing global technology investment trends and AI.
- Earnings Calls & Shareholder Meetings: Son's quarterly and annual presentations to SoftBank investors are closely watched by the global investment community for insights into tech market direction.
Frequently Asked Questions
Who is Masayoshi Son?
What is Masayoshi Son known for?
Son is best known for founding SoftBank Group, making one of the most profitable venture investments in history ($20 million in Alibaba that grew to over $100 billion), acquiring ARM Holdings for $32 billion, launching the world's largest technology-focused venture fund (Vision Fund), and leading the Stargate Project to build AI infrastructure in the United States.
What companies has Masayoshi Son invested in?
Through SoftBank and the Vision Fund, Son has invested in Alibaba, ARM Holdings, Uber, WeWork, DoorDash, Coupang, Grab, DiDi, Flipkart, ByteDance, Yahoo Japan, Sprint (now T-Mobile), and many other technology companies globally. More recently, his investments are heavily concentrated in AI companies and infrastructure.
What is Masayoshi Son's investment philosophy?
Son operates with a "300-year vision," focusing on technologies that will fundamentally transform society. He is known for making bold, large-scale bets — often investing billions in a single company to help it achieve market dominance. His current thesis centers entirely on artificial intelligence and what he calls the coming era of Artificial Super Intelligence (ASI).
What is the SoftBank Vision Fund?
The SoftBank Vision Fund is the world's largest technology-focused investment fund. Vision Fund I, launched in 2017 with approximately $100 billion in capital (backed by Saudi Arabia's PIF and others), invested in late-stage technology companies. Vision Fund II followed with $56 billion, primarily funded by SoftBank itself. Together, they have invested in hundreds of companies across AI, fintech, health tech, and logistics.
What is the Stargate Project?
The Stargate Project is a joint venture announced in January 2025 between SoftBank, OpenAI, and Oracle, with plans to invest up to $500 billion in building AI data center infrastructure across the United States. Masayoshi Son is the chairman of the venture, reflecting his conviction that AI infrastructure will be the most critical investment of this decade.
What is Masayoshi Son's net worth?
As of 2025, Masayoshi Son's net worth is estimated at approximately $60 billion, primarily tied to his controlling stake in SoftBank Group and its holdings, especially ARM Holdings. His wealth has been notably volatile, including a $70 billion paper loss during the dot-com crash of 2000.
How can I contact Masayoshi Son or SoftBank?
For business and investment inquiries, the best approach is through SoftBank Group's official website at group.softbank/en/contact. For Vision Fund-related opportunities, visit visionfund.com. Masayoshi Son also maintains a presence on Twitter/X (@masaboroso).