Masayoshi Son

Founder at SoftBank Group Corp.

Masayoshi Son

Masayoshi Son

Founder at SoftBank Group Corp.

Career Highlights

SVF Holdco (UK) Ltd.
SoftBank Holdings, Inc.
SoftBank Capital Partners LLC

RelSci Relationships


Number of Boards



08/11/1957 - Tosu, SA, Japan



Number of Awards


Estimated Net Worth




Contact Data
Trying to get in touch with Masayoshi Son? Subscribe today to access their professional contact information and receive a one time promotion of free Contact Data credits!
RelSci Relationships are individuals Masayoshi Son likely has professional access to. A relationship does not necessarily indicate a personal connection.

President & Director at Softbank, Inc.

Relationship likelihood: Strong

Executive Chairman at Sprint Corp.

Relationship likelihood: Strong

Executive President, Chief Executive Officer & Representative Director at SoftBank Corp.

Relationship likelihood: Strong

Chief Financial Officer & Senior Managing Executive Officer at SoftBank Group Corp.

Relationship likelihood: Strong

Chief Financial Officer & Director at SoftBank Corp.

Relationship likelihood: Strong

President, Chief Executive Officer & Representative Director at Yahoo Japan Corp.

Relationship likelihood: Strong

Head, Strategic Finance at SoftBank Group Corp.

Relationship likelihood: Strong

Chief Executive Officer at ARM, Inc.

Relationship likelihood: Strong

Co-Founder at GungHo Online Entertainment, Inc.

Relationship likelihood: Strong

Former Chief Executive Officer at Yahoo Japan Corp.

Relationship likelihood: Strong

Paths to Masayoshi Son
Potential Connections via
Relationship Science
Masayoshi Son
Founder at SoftBank Group Corp.
Family Members

GungHo Online Entertainment America (GOEA) is a multiplatform publisher dedicated to delivering the best titles, content and support for the online gaming community. Established in 2012 and led by former Square Enix and XSEED Games executive Jun Iwasaki, GOEA is the US division of GungHo Online Entertainment, an established Japanese publisher. GOEA’s content partners include leading developers Game Arts, Acquire and Gravity, all of which are subsidiaries of GungHo Online Entertainment. GOEA publishes and distributes network-oriented games for console, handheld, mobile, tablet and MMO-style games for PC.

BA in Economics
Class of 1980

University of California Berkeley National rankings: In a National Research Council analysis of 212 doctoral programs at American universities, 48 Berkeley programs place among the top 10 nationwide. Faculty awards and honors: There are 8 Nobel Laureates, 32 MacArthur Fellows, and 4 Pulitzer Prize winners among the current faculty. History of UC Berkeley: Historical highlights, arranged by topic, following the campus's development — from UC's founding in 1868 to a turn-of-the-century building boom, a research explosion in the 1930s, the Free Speech Movement of the '60s, and Berkeley's key role today in science and technology revolutions. Timeline of discoveries and contributions by UC Berkeley scholars. Traditions of Cal: Who was the Angel of Death? What's with the "Big C" up there in the hills — and why is it sometimes green? Who wears Oski's jolly bear head and size 54 yellow sweater? Tours and webcams: Check out what's happening on Sproul Plaza, the campus's true heart. See stunning live views of the Bay Area from the Lawrence Hall of Science's perch in the Berkeley hills. Chancellor and administration: Information on Chancellor Robert Birgeneau, Executive Vice Chancellor and Provost George W. Breslauer, and how the university is organized. Organizational charts are included. UC System overview and links: On the campuses, laboratories, and medical centers that comprise UC's public educational system, as well as UC's K-12 partnerships, economic impact, and agriculture and environmental resources.



Career History
2016 - Current

SoftBank Investment Advisers is a global advisory firm that seeks to make investments in the technology sector. They focus on growing businesses run by disruptive innovators that are seeking to be the foundational platforms of the information revolution.

1981 - Current

SoftBank Group Corp. operates as a holding company which engages in the management of its group companies. It operates through the following segments: Domestic Telecommunications, Sprint, Yahoo Japan, Distribution, Arm, SoftBank Vision Fund (SFV), and Others. The Domestic Telecommunications segment provides mobile communication, broadband, and telecom services in Japan. The Sprint segment provides mobile communication services in the United States. The Yahoo Japan segment engages in the business of Internet advertising, e-commerce, and membership services. The Distribution segment distributes mobile devices, and sells personal computer (PC) software, peripherals, and mobile accessories in Japan. The Arm segment designs microprocessors and develops software technologies. The SFV segment manages investment activities through the SoftBank Vision Fund. The Others segment includes robotics and the Fukuoka SoftBank HAWKS related business. The company was founded by Masayoshi Son on September 3, 1981 and is headquartered in Tokyo, Japan.

President & Director

SoftBank Holdings, Inc. engages in gathering information on Internet-related companies with a view to strategic investment. The company was founded in March 1994 and is headquartered in Wilmington, DE.

Boards & Committees
Chairman, Board of Directors
2015 - Current

SoftBank Corp. engages in the provision of mobile communication, broadband, ICT solutions and telecom services. It offers the following services: smartphone, mobile and tablet devices; network and VPN services; cloud services; voice call and landline telephone services; IBM Watson; Internet of Things; digital marketing; security services; datacenter; outsourcing; and conferencing and global services. It operates through the following businesses: Consumer, Corporate, Distribution and Other business. The Consumer business handles mobile communication and broadband services, The Corporate business includes mobile communication service, network VPN service, cloud service, fixed telephone service, digital marketing, and security services for corporate customers. The Distribution business manages the wholesale distribution of software. The Other business comprises of solutions and services for online business, planning and production of digital media and digital contents. The company was founded on December 9, 1986 and is headquartered in Tokyo, Japan.

Member, Board of Directors
2000 - Current

Alibaba Group Holding Ltd. engages in providing online and mobile marketplaces in retail and wholesale trade. It operates through the following segments: Core Commerce; Cloud Computing; Digital Media and Entertainment; and Innovation Initiatives and Others. The Core Commerce segment comprises of platforms operating in retail and wholesale. The Cloud Computing segment consists of Alibaba Cloud, which offers elastic computing, database, storage and content delivery network, large scale computing, security, management and application, big data analytics, a machine learning platform, and other services provide for enterprises of different sizes across various industries. The Digital Media and Entertainment segment relates to the Youko Tudou and UC Browser business. The Innovation Initiatives and Others segment includes businesses such as AutoNavi, DingTalk, Tmall Genie, and others. The company was founded by Chung Tsai and Yun Ma on June 28, 1999 and is headquartered in Hangzhou, China.

Member, Board of Directors
1996 - Current

Yahoo Japan Corp. engages in the internet advertising, e-Commerce, and members services businesses. It operates through the Media and Commerce business segments. The Media business segment covers advertisement related services that include search linked advertisement and dsiplay advertisement. The Commerce business segment handles commerce related services in Yahoo Auction!, Yahoo! Shopping, ASKUL Corp., and Yahoo! Premium. It also provides settlement finance related services. The company was founded on January 31, 1996 and is headquartered in Tokyo, Japan.

Chairman, Board of Directors
Details Hidden
Details Hidden
Details Hidden
Public Holdings
Restricted data only for RelSci Professional users.

Founder at Carmen Group, Inc.

Awards & Honors
Rank #34
Forbes Magazine - The World's Billionaires
Rank #32
Hurun - Global Rich List
Rank #82
Forbes Magazine - The World's Billionaires
This web site is not endorsed by, directly affiliated with, maintained, authorized, or sponsored by Masayoshi Son. The use of any trade name or trademark is for identification and reference purposes only and does not imply any association with the trademark holder. The Presence of Masayoshi Son's profile does not indicate a business or promotional relationship of any kind between RelSci and Masayoshi Son.
  • be_ixf; php_sdk; php_sdk_1.4.15