Hiroshi Sakuma

Director/Board Member at THE WHY HOW DO COMPANY, INC.

81 year

Distribution Services

Technology Services

Profile

Hiroshi Sakuma is Independent Outside Director at Why How Do Co., Inc. since 2017.
Mr. Sakuma is Director & Executive Vice President at Sumiseki Trading Co., Ltd. since 2015.
Mr. Sakuma is Independent Outside Director at ArtGreen Co., Ltd. since 2023.
Formerly, Mr. Sakuma was Independent Outside Director at Sumiseki Holdings, Inc.

Hiroshi Sakuma active positions

Companies	Position	Start
THE WHY HOW DO COMPANY, INC.	Director/Board Member	2017-08-31
ARTGREEN. CO.,LTD.	Director/Board Member	2022-12-31
Sumiseki Trading Co., Ltd.	Director/Board Member	2015-05-31

All active positions of Hiroshi Sakuma

Former positions of Hiroshi Sakuma

Companies	Position	End
SUMISEKI HOLDINGS,INC.	Director/Board Member	-

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Experiences
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Linked companies

Private companies	4
Why How Do Co., Inc. Why How Do Co., Inc. Packaged SoftwareTechnology Services Develops software and operates restaurants & provides educational services	Technology Services
Sumiseki Holdings, Inc. Sumiseki Holdings, Inc. Wholesale DistributorsDistribution Services Engages in the manufacture and sale of coal, artificial diamonds, and crushed stones	Distribution Services
Sumiseki Trading Co., Ltd.
ArtGreen Co., Ltd. ArtGreen Co., Ltd. Wholesale DistributorsDistribution Services Wholesales flowers	Distribution Services