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Tsunesaburo Sugaya
Director/Board Member at
PLAT'HOME CO., LTD.
Net worth: 279 908 $ as of 2026-06-29
Profile
Mr. Tsunesaburo Sugaya is an Independent Outside Director at Macnica Holdings, Inc., an Auditor at Artiza Networks, Inc., a Partner at Miyako Capital KK and an Independent Outside Director at Plat'Home Co., Ltd. He is on the Board of Directors at Macnica Holdings, Inc., Plat'Home Co., Ltd., I Peace, Inc. and Ultrasolar Technology, Inc. Mr. Sugaya was previously employed as a General Partner & Head-Asia Business Development by JAFCO Ventures, an Executive Officer by JAFCO Group Co., Ltd., and a Principal by Motorola, Inc. (Japan).
He received his undergraduate degree from National Defense Academy of Japan.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2025-09-29 | 66,900 ( 1.4% ) | 279 908 $ | 2026-06-29 |
Tsunesaburo Sugaya active positions
| Companies | Position | Start |
|---|---|---|
| PLAT'HOME CO., LTD. | Director/Board Member | 2015-05-31 |
| MACNICA HOLDINGS, INC. | Director/Board Member | 2019-05-31 |
| ARTIZA NETWORKS, INC. | Comptroller/Controller/Auditor | 2022-10-27 |
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 targets companies operating in the field of information technology, environmental services, biotechnology and agri/food-related business sector. It provides financing for seed, early and later stage transaction. It acquires minority interest. | Private Equity Investor | 2016-02-27 |
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 | 2011-12-30 |
| 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
29
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 targets companies operating in the field of information technology, environmental services, biotechnology and agri/food-related business sector. It provides financing for seed, early and later stage transaction. It 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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