![Shinichiro Yoshioka](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>)
Shinichiro Yoshioka
Founder at
ALPHA GROUP INC.
Net worth: 344 801 $ as of 30/08/2026
Profile
Mr. Shinichiro Yoshioka is a President & Representative Director at Alpha Group KK, a President & Representative Director at Alpha Rise KK and a President & Representative Director at Alpha Group, Inc. He is on the Board of Directors at In Charge, Inc., Alpha Group KK, Alpha Rise KK and Alpha Group, Inc. Mr. Yoshioka was previously employed as a Chairman by Alpha IT, Inc. He also served on the board at Dr. I.A.C.
KK.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
Sakai Holdings Co., Ltd.
 Sakai Holdings Co., Ltd. Electronics/Appliance StoresRetail Trade Sells mobile communication equipment and provides renewable resource energy, insurance, funeral and real estate rental services 0.72% | 30/03/2026 | 79,000 ( 0.72% ) | 344 801 $ | 30/08/2026 |
Shinichiro Yoshioka active positions
| Companies | Position | Start |
|---|---|---|
| ALPHA GROUP INC. | Founder | 29/11/1994 |
Alpha Group KK
 Alpha Group KK Wireless TelecommunicationsCommunications Retails mobile phones and related contracts | President | - |
Alpha Rise KK
 Alpha Rise KK Wholesale DistributorsDistribution Services Trades and wholesales furniture, office equipments, stationery, and female accessories, and cosmetics as well as manufactures and installs telecommunication equipments | President | 30/09/2014 |
In Charge, Inc.
 In Charge, Inc. Specialty StoresRetail Trade Sells mobile phone peripheral equipment | Director/Board Member | 31/03/2016 |
Former positions of Shinichiro Yoshioka
| Companies | Position | End |
|---|---|---|
Dr. I.A.C. KK | Director/Board Member | - |
Alpha IT, Inc
 Alpha IT, Inc Data Processing ServicesTechnology Services Provides web marketing, development, search engine optimization (SEO), and listing services | Chairman | - |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
8
1st degree connections
6
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 6 |
|---|---|
Alpha Group, Inc.
 Alpha Group, Inc. Internet RetailRetail Trade Provides strategy, 5G and mobile marketing services | Retail Trade |
Alpha Group KK
Alpha Group KK Wireless TelecommunicationsCommunications Retails mobile phones and related contracts | Communications |
Alpha Rise KK
Alpha Rise KK Wholesale DistributorsDistribution Services Trades and wholesales furniture, office equipments, stationery, and female accessories, and cosmetics as well as manufactures and installs telecommunication equipments | Distribution Services |
Alpha IT, Inc
Alpha IT, Inc Data Processing ServicesTechnology Services Provides web marketing, development, search engine optimization (SEO), and listing services | Technology Services |
Dr. I.A.C. KK | |
In Charge, Inc.
In Charge, Inc. Specialty StoresRetail Trade Sells mobile phone peripheral equipment | Retail Trade |
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