Michael Bloomberg and Lei Jun are influential entrepreneurs who built successful businesses in finance and technology. Bloomberg founded Bloomberg L.P., a global financial information company, while Lei Jun established Xiaomi, one of China’s leading consumer technology brands. Their careers reflect different approaches to innovation, leadership, and wealth creation. Beyond business, their families, lifestyles, and philanthropic activities also attract public interest.
Profile Bio
| Personal Details | Michael Bloomberg | Lei Jun |
|---|---|---|
| Full Name | Michael Rubens Bloomberg | Lei Jun |
| Date of Birth | February 14, 1942 | December 16, 1969 |
| Age (2026) | 84 years | 56 years |
| Birthplace | Boston, Massachusetts, USA | Xiantao, Hubei, China |
| Nationality | American | Chinese |
| Profession | Entrepreneur, philanthropist | Entrepreneur, investor |
| Net Worth (Nov. 2026) | Estimated $94.9 billion | Estimated $24.6 billion |
| Height | Approximately 5’8″ (reported) | Not officially confirmed |
| Marital Status | Married to Diana Taylor | Reportedly married to Zhang Tong |
| Children | Two daughters | Details not reliably confirmed |
| Siblings | Marjorie Tiven (sister) | Not publicly confirmed |
| Education | Johns Hopkins University, Harvard Business School | Wuhan University |
| Known For | Founder of Bloomberg L.P. | Founder of Xiaomi |
Who Are Michael Bloomberg and Lei Jun?
Michael Bloomberg is an American businessman, philanthropist, and former mayor of New York City. Born on February 14, 1942, he built his fortune by developing financial information services. His company, Bloomberg L.P., provides market data, news, analytics, and professional technology solutions to customers worldwide.
Lei Jun is a Chinese entrepreneur born on December 16, 1969. He founded Xiaomi in 2010 and helped expand the company from smartphones into smart devices, household electronics, and electric vehicles. Both entrepreneurs are billionaires, although their businesses operate in different markets.
Early Life and Education
Michael Bloomberg grew up in Medford, Massachusetts, in a middle-class family. His father, William Henry Bloomberg, worked as a bookkeeper, while his mother, Charlotte Rubens Bloomberg, worked as an office manager. Bloomberg studied electrical engineering at Johns Hopkins University before earning an MBA from Harvard Business School in 1966.
Lei Jun was born in Xiantao, Hubei Province, China. He developed an early interest in computers and technology. He attended Wuhan University, where he studied computer science and graduated in 1991. His educational background later helped him establish businesses in software development, internet services, and consumer electronics.
Michael Bloomberg’s Business Career
Bloomberg began his career at Salomon Brothers in 1966. He advanced through the investment bank before leaving in 1981 following its acquisition. Using his financial knowledge and technical experience, he founded the company that became Bloomberg L.P.
His most important innovation was the Bloomberg Terminal, which provides financial professionals with market information, analytical tools, and news. The company’s success allowed it to expand internationally into media, software, and data services.
Bloomberg also served as mayor of New York City from 2002 to 2013. His political career focused on public administration, education, economic development, and public health.
Lei Jun’s Business Career
Lei Jun joined software company Kingsoft in 1992 and eventually became one of its senior executives. He later founded Joyo.com, an online retailer acquired by Amazon in 2004. These experiences strengthened his understanding of technology businesses and investment opportunities.
In 2010, he cofounded Xiaomi, initially concentrating on smartphones and software. Xiaomi attracted customers through competitive pricing and innovative products. The company later expanded into televisions, wearable technology, smart appliances, and electric vehicles. Lei remains Xiaomi’s chairman and CEO.
Michael Bloomberg and Lei Jun Net Worth
Michael Bloomberg and Lei Jun have accumulated substantial fortunes through their business ownership and investments.
According to Forbes’ estimates dated November 10, 2026, Bloomberg’s net worth was approximately $94.9 billion, while Lei Jun’s fortune was estimated at $24.6 billion.
Bloomberg’s fortune primarily comes from his ownership of Bloomberg L.P. Lei Jun’s wealth is closely connected to Xiaomi shares and other technology investments. These valuations fluctuate with business performance and market conditions.
Michael Bloomberg’s Family
Michael Bloomberg has a sister named Marjorie Tiven. He was previously married to Susan Brown, with whom he has two daughters, Emma Bloomberg and Georgina Bloomberg.
Emma has worked in public service and nonprofit organizations, while Georgina is an accomplished equestrian.
On November 9, 2026, Bloomberg married his longtime partner, Diana Taylor, in a private ceremony in Manhattan. Taylor is a business executive and former New York State superintendent of banks.
Lei Jun’s Wife and Family
Lei Jun keeps most aspects of his family life private. Some online biographies identify Zhang Tong as his wife and report that he has children. However, these details are not fully established through official corporate biographies.
Information about his parents, siblings, and children remains limited in reliable public sources. Unlike his professional achievements, which receive extensive media attention, Lei rarely discusses his household or relatives publicly.
Age, Height, and Physical Appearance
As of November 2026, Michael Bloomberg is 84 years old, while Lei Jun is 56 years old.
Bloomberg has gray hair and is commonly photographed wearing formal business attire. Some secondary sources estimate his height at approximately 5 feet 8 inches (173 cm), although no official measurement is established.
Lei Jun has dark hair and frequently wears business-casual clothing during company presentations. His exact height and weight have not been reliably confirmed.
Lifestyle and Personal Interests
Michael Bloomberg maintains an active professional lifestyle involving business management, public affairs, and philanthropy. He owns valuable properties and contributes substantial amounts to charitable organizations. His philanthropic interests include education, climate action, public health, and the arts.
Lei Jun’s public activities focus on technology development, investments, and Xiaomi product launches. He frequently interacts with customers through social media and participates in industry events. His lifestyle is primarily documented through his professional responsibilities rather than personal spending.
Social Media Presence
Both entrepreneurs maintain public profiles, although they communicate with different audiences.
Bloomberg shares updates related to philanthropy, business, and public initiatives. Lei Jun mainly discusses Xiaomi products, technology innovations, and company developments.
Business Achievements and Philanthropy
Bloomberg transformed financial information services through the Bloomberg Terminal and expanded his company into an international media and technology organization. His charitable organization, Bloomberg Philanthropies, supports education, public health, environmental programs, and government innovation.
Lei Jun helped Xiaomi become a globally recognized electronics manufacturer. The company’s expansion into electric vehicles represents another major business milestone. In 2023, Lei donated 1.3 billion yuan to Wuhan University to support education and scientific research.
Are Michael Bloomberg and Lei Jun Related?
There is no publicly verified family relationship or direct business partnership between Michael Bloomberg and Lei Jun.
Their names are sometimes compared because both founded major technology-oriented companies and accumulated considerable personal wealth. However, Bloomberg primarily serves financial professionals, while Lei Jun’s company focuses on consumer electronics, connected devices, and automobiles.
Their professional similarities do not indicate a personal connection.
Interesting Facts
- Bloomberg founded his company after leaving Salomon Brothers in 1981.
- He studied electrical engineering before entering finance.
- Bloomberg served three terms as mayor of New York City.
- Lei Jun founded Xiaomi in 2010.
- Xiaomi became publicly listed in Hong Kong in 2018.
- Lei Jun previously founded the online retailer Joyo.com.
- Xiaomi began electric vehicle deliveries in April 2024.
Conclusion
Michael Bloomberg and Lei Jun represent two distinct paths to entrepreneurial success. Bloomberg built a financial information business, while Lei Jun developed a global consumer technology company.
Their careers demonstrate the value of technical knowledge, business planning, and understanding customers. Although their family backgrounds, lifestyles, and industries differ, both have established lasting influence through their companies, investments, and philanthropic contributions.
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FAQs
Who are Michael Bloomberg and Lei Jun?
Michael Bloomberg is an American billionaire and founder of Bloomberg L.P. Lei Jun is a Chinese entrepreneur best known for founding Xiaomi. Both are influential figures in business and technology.
What are Michael Bloomberg and Lei Jun’s net worths in 2026?
As of November 10, 2026, Forbes estimated Michael Bloomberg’s net worth at $94.9 billion and Lei Jun’s at $24.6 billion. These estimates can change over time.
Are Michael Bloomberg and Lei Jun related?
No, Michael Bloomberg and Lei Jun have no publicly confirmed family relationship or direct business partnership. They are known for founding successful companies in different industries.
Who are Michael Bloomberg and Lei Jun’s wives?
Michael Bloomberg married Diana Taylor on November 9, 2026. Lei Jun reportedly married Zhang Tong, although details about his family remain largely private.
How old are Michael Bloomberg and Lei Jun?
Michael Bloomberg is 84 years old, born February 14, 1942. Lei Jun is 56 years old, born December 16, 1969, as of November 2026.
