![Toshiya Tatemoto](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Net worth: 578 901 $ as of 31/05/2026
Currently, Toshiya Tatemoto is Managing Director & Manager-Administration at Nagaoka International Corp.
since 2024.
Other current roles include Director at WDB Functional Chemistry Co., Ltd. since 2008, Director at WDB Medical Co., Ltd. since 2010, Director at WDB ICO Co., Ltd. (Japan) since 2011, Director at Umino Co., Ltd. since 2010, Director at WDB Business Succession Partners Co., Ltd. since 2010, and Member-Supervisory Board at Nahe Equipment (Dalian) Co., Ltd. since 2017.
Formerly, Mr. Tatemoto was Director, GM-Administration & Manager-Accounting at WDB Holdings Co., Ltd. Education includes an undergraduate degree from Kinki University, conferred in 1985.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 31/12/2025 | 70,080 ( 0.99% ) | 578 901 $ | 31/05/2026 |
| Companies | Position | Start |
|---|---|---|
| NAGAOKA INTERNATIONAL CORPORATION | Chief Administrative Officer | 01/07/2016 |
WDB Medical Co., Ltd. | Director/Board Member | 18/08/2010 |
WDB ICO Co., Ltd. (Japan)
 WDB ICO Co., Ltd. (Japan) Miscellaneous Commercial ServicesCommercial Services Provides medical, biotechnological, and pharmaceutical translation services as well as regulatory application and consulting services | Director/Board Member | 06/10/2011 |
WDB Functional Chemistry Co., Ltd. | Director/Board Member | 07/10/2011 |
Umino Co., Ltd. | Director/Board Member | 07/10/2011 |
WDB Business Succession Partners Co., Ltd. | Director/Board Member | 07/10/2011 |
Nahe Equipment (Dalian) Co., Ltd.
 Nahe Equipment (Dalian) Co., Ltd. Oilfield Services/EquipmentIndustrial Services Engages in the manufacturing of internal equipment for petroleum refining and petrochemical plants | Director/Board Member | 01/10/2017 |
| Companies | Position | End |
|---|---|---|
| WDB HOLDINGS CO., LTD. | Chief Administrative Officer | - |
Active
Inactive
Listed companies
Private companies
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
| Private companies | 9 |
|---|---|
WDB Holdings Co., Ltd.
 WDB Holdings Co., Ltd. Personnel ServicesCommercial Services Operates as a holding company which interests in providing human resources services | Commercial Services |
Kinki University
 Kinki University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Nagaoka International Corp.
 Nagaoka International Corp. Industrial ConglomeratesProducer Manufacturing Provides water treatment technology services | Producer Manufacturing |
WDB Functional Chemistry Co., Ltd. | |
WDB Medical Co., Ltd. | |
WDB ICO Co., Ltd. (Japan)
WDB ICO Co., Ltd. (Japan) Miscellaneous Commercial ServicesCommercial Services Provides medical, biotechnological, and pharmaceutical translation services as well as regulatory application and consulting services | Commercial Services |
Umino Co., Ltd. | |
WDB Business Succession Partners Co., Ltd. | |
Nahe Equipment (Dalian) Co., Ltd.
Nahe Equipment (Dalian) Co., Ltd. Oilfield Services/EquipmentIndustrial Services Engages in the manufacturing of internal equipment for petroleum refining and petrochemical plants | Industrial Services |
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