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Tsunesaburo Sugaya
Director/Board Member at
PLAT'HOME CO., LTD.
Net worth: 344 355 $ as of 30/08/2026
Profile
Tsunesaburo Sugaya is currently Director at Ultrasolar Technology, Inc. and I Peace, Inc. Mr. Sugaya is Independent Outside Director at Plat'Home Co., Ltd. since 2015, Macnica Holdings, Inc. since 2019, and Auditor at Artiza Networks, Inc. since 2022.
Mr. Sugaya is Partner at Miyako Capital Co., Ltd. since 2016.
Formerly, Mr. Sugaya was Executive Officer at JAFCO Group Co., Ltd. from 1999 to 2011, Managing General Partner at Icon Ventures LLC in 2009, and Principal at Motorola, Inc. (Japan).
Education includes undergraduate studies at the National Defense Academy of Japan.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 29/09/2025 | 66,900 ( 1.4% ) | 344 355 $ | 30/08/2026 |
Tsunesaburo Sugaya active positions
| Companies | Position | Start |
|---|---|---|
| PLAT'HOME CO., LTD. | Director/Board Member | 31/05/2015 |
| MACNICA HOLDINGS, INC. | Director/Board Member | 31/05/2019 |
| ARTIZA NETWORKS, INC. | Comptroller/Controller/Auditor | 27/10/2022 |
Ultrasolar Technology, Inc.
 Ultrasolar Technology, Inc. Miscellaneous Commercial ServicesCommercial Services Develops technology to improve the efficiency of solar photovoltaic panels | Director/Board Member | - |
I Peace, Inc.
 I Peace, Inc. Miscellaneous Commercial ServicesCommercial Services Engages in conducting research in biotechnology | Director/Board Member | - |
Miyako Capital KK
 Miyako Capital KK Investment ManagersFinance Miyako Capital invests in companies located in Japan. The firm focuses on information technology, environmental services, biotechnology and agri/food-related business sectors. It provides financing for seed, early and later stage capital requirements. The firm acquires minority interest. | Private Equity Investor | 27/02/2016 |
Former positions of Tsunesaburo Sugaya
| Companies | Position | End |
|---|---|---|
Icon Ventures LLC
 Icon Ventures LLC Investment ManagersFinance Icon Ventures invests in companies located in the United States. The firm focuses on enterprise, data management, cybersecurity, digital health, and consumer sectors. It provides financing for seed and early stage capital requirements and also acts as a lead investor. | Corporate Officer/Principal | 30/12/2011 |
| JAFCO GROUP CO., LTD. | Corporate Officer/Principal | - |
Motorola, Inc. (Japan)
 Motorola, Inc. (Japan) Telecommunications EquipmentElectronic Technology Imports and markets telecommunication equipment | Corporate Officer/Principal | - |
Training of Tsunesaburo Sugaya
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
48
1st degree connections
10
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 10 |
|---|---|
Ultrasolar Technology, Inc.
Ultrasolar Technology, Inc. Miscellaneous Commercial ServicesCommercial Services Develops technology to improve the efficiency of solar photovoltaic panels | Commercial Services |
JAFCO Group Co., Ltd.
 JAFCO Group Co., Ltd. Investment ManagersFinance Operates as a venture capital and buyout investment company | Finance |
Artiza Networks, Inc.
 Artiza Networks, Inc. Telecommunications EquipmentElectronic Technology Manufactures and sells communication measuring instruments for building communication infrastructure and network management systems | Electronic Technology |
Plat'Home Co., Ltd.
 Plat'Home Co., Ltd. Computer Processing HardwareElectronic Technology Provides IT consulting services | Electronic Technology |
Icon Ventures LLC
Icon Ventures LLC Investment ManagersFinance Icon Ventures invests in companies located in the United States. The firm focuses on enterprise, data management, cybersecurity, digital health, and consumer sectors. It provides financing for seed and early stage capital requirements and also acts as a lead investor. | Finance |
Motorola, Inc. (Japan)
Motorola, Inc. (Japan) Telecommunications EquipmentElectronic Technology Imports and markets telecommunication equipment | Electronic Technology |
National Defense Academy of Japan
 National Defense Academy of Japan Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Miyako Capital KK
Miyako Capital KK Investment ManagersFinance Miyako Capital invests in companies located in Japan. The firm focuses on information technology, environmental services, biotechnology and agri/food-related business sectors. It provides financing for seed, early and later stage capital requirements. The firm acquires minority interest. | Finance |
Macnica Holdings, Inc.
 Macnica Holdings, Inc. Wholesale DistributorsDistribution Services Engages in the import, export, and sales of electronic components | Distribution Services |
I Peace, Inc.
I Peace, Inc. Miscellaneous Commercial ServicesCommercial Services Engages in conducting research in biotechnology | Commercial Services |
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