Masayoshi Son
Founder at
SOFTBANK GROUP CORP.
Net worth: 93 348 M $ as of 30/05/2026
Profile
Mr. Masayoshi Son is a Chairman at Supercell Oy, a Chairman & Chief Executive Officer at SoftBank Group Corp., a Chairman & Chief Executive Officer at SB Investment Advisers (UK) Ltd. and a President & Representative Director at Wireless City Planning, Inc. He is on the Board of Directors at Arm Ltd. (United Kingdom), SoftBank Group Japan KK, SoftBank Corp. and Wireless City Planning, Inc. Mr. Son was previously employed as a Chairman by SVF Holdco (UK) Ltd., a President, CEO & Representative Director by Softbank Telecom Corp., a President, CEO & Representative Director by SOFTBANK BB Corp., a Chairman by Brightstar International Corp., a Principal by MIC America LLC, a President & Director by SoftBank Holdings, Inc., and a Member by Son Asset Management LLC. He also served on the board at Sprint Corp., Alibaba Group Holding Ltd. and Z Holdings Corp. He received his undergraduate degree from the University of California, Berkeley.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
SOFTBANK GROUP CORP. 34.73% | 27/11/2025 | 1,983,698,464 ( 34.73% ) | 93 347 M $ | 30/05/2026 |
WDI Corp.
 WDI Corp. RestaurantsConsumer Services Operates restaurants 0.57% | 29/09/2025 | 36,000 ( 0.57% ) | 666 223 $ | 30/05/2026 |
Latest news about Masayoshi Son
Masayoshi Son active positions
| Companies | Position | Start |
|---|---|---|
| SOFTBANK GROUP CORP. | Founder | 02/09/1981 |
| SOFTBANK CORP. | Founder | 31/03/2006 |
| ARM HOLDINGS PLC | Chairman | 28/02/2018 |
Supercell Oy
 Supercell Oy Packaged SoftwareTechnology Services Develops mobile games | Chairman | 31/10/2013 |
Broadband Association | Director/Board Member | - |
SB Energy Corp.
 SB Energy Corp. Engineering & ConstructionIndustrial Services Provides solar system installation services | Chairman | - |
SBLA Advisers Corp.
 SBLA Advisers Corp. Investment ManagersFinance SBLA Advisers invests in companies located in Latin America primarily in Argentina, Brazil, Chile, Colombia and Mexico. The firm focuses on Information technology, e-commerce, digital financial services, healthcare, mobility and insurance sectors. It provides financing for early and growth stage capital requirements. | Chief Executive Officer | 31/12/2016 |
Arm Ltd. (United Kingdom)
 Arm Ltd. (United Kingdom) SemiconductorsElectronic Technology Develops semiconductors and software platform for IP solutions | Chairman | 28/02/2018 |
SoftBank Group Japan KK
 SoftBank Group Japan KK Financial ConglomeratesFinance Functions as an investment holding company | Director/Board Member | 29/02/2016 |
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Former positions of Masayoshi Son
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Training of Masayoshi Son
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
62
1st degree connections
24
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 24 |
|---|---|
SoftBank Group Corp.
 SoftBank Group Corp. Specialty TelecommunicationsCommunications Provides mobile communication, broadband and telecom services | Communications |
SVF Holdco (UK) Ltd.
 SVF Holdco (UK) Ltd. Financial ConglomeratesFinance Provides investment services | Finance |
Arm Ltd. (United Kingdom)
Arm Ltd. (United Kingdom) SemiconductorsElectronic Technology Develops semiconductors and software platform for IP solutions | Electronic Technology |
LY Corp.
 LY Corp. Internet Software/ServicesTechnology Services Provides information content, on-line search capabilities, maps, shopping and other services | Technology Services |
Softbank Telecom Corp.
 Softbank Telecom Corp. Specialty TelecommunicationsCommunications Provides wired and wireless telecommunication services | Communications |
Likewize Corp.
 Likewize Corp. Property/Casualty InsuranceFinance Provides insurance, warranty, repair, trade-in, recycling and support services for lost, stolen, damaged & malfunctioned tech devices | Finance |
University of California, Berkeley
 University of California, Berkeley Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
SOFTBANK BB Corp.
 SOFTBANK BB Corp. Internet Software/ServicesTechnology Services Provides broadband internet services | Technology Services |
MIC America LLC
 MIC America LLC Miscellaneous Commercial ServicesCommercial Services Provides educational support services | Commercial Services |
SoftBank Corp.
 SoftBank Corp. Wireless TelecommunicationsCommunications Provides mobile communication, broadband and telecom services | Communications |
SoftBank Holdings, Inc.
 SoftBank Holdings, Inc. Information Technology ServicesTechnology Services Engages in gathering information on internet-related companies with a view to strategic investment | Technology Services |
Alibaba Group Holding Ltd.
 Alibaba Group Holding Ltd. Internet RetailRetail Trade Operates retail and wholesale e-commerce platforms & provides cloud computing and logistics services | Retail Trade |
Son Asset Management LLC | |
The Raine Group LLC
 The Raine Group LLC Regional BanksFinance Operates as a global merchant bank that focuses on technology, media and telecommunications | Finance |
Wireless City Planning, Inc.
 Wireless City Planning, Inc. Specialty TelecommunicationsCommunications Provides wireless data and voice services | Communications |
Supercell Oy
Supercell Oy Packaged SoftwareTechnology Services Develops mobile games | Technology Services |
Sprint Corp.
 Sprint Corp. Wireless TelecommunicationsCommunications Provides wireless and wired telecommunications services | Communications |
SB Energy Corp.
SB Energy Corp. Engineering & ConstructionIndustrial Services Provides solar system installation services | Industrial Services |
SB Investment Advisers (UK) Ltd.
 SB Investment Advisers (UK) Ltd. Investment ManagersFinance Softbank Vision invests in technology companies across the Globe. The firm acquires minority and majority interests in both private and public companies with a minimum investment size of $100 million. | Finance |
SoftBank Group Japan KK
SoftBank Group Japan KK Financial ConglomeratesFinance Functions as an investment holding company | Finance |
Miami Beckham United LLC
 Miami Beckham United LLC Miscellaneous Commercial ServicesCommercial Services Operates as agents of artists, athletes and entertainers | Commercial Services |
Broadband Association | |
SBLA Advisers Corp.
SBLA Advisers Corp. Investment ManagersFinance SBLA Advisers invests in companies located in Latin America primarily in Argentina, Brazil, Chile, Colombia and Mexico. The firm focuses on Information technology, e-commerce, digital financial services, healthcare, mobility and insurance sectors. It provides financing for early and growth stage capital requirements. | Finance |
Arm Holdings Plc
 Arm Holdings Plc SemiconductorsElectronic Technology Develops chips, CPUs, processors and software related to computers | Electronic Technology |
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