Seiichi Kumagai

Director/Board Member at SUN-LIFE HOLDING CO.,LTD.

74 year

Finance

Consumer Durables

Consumer Services

Profile

Seiichi Kumagai is President & Representative Director at Nihon Insatsu Kogyo KK since 2018.
Serving as Outside Director at Oginoya KK since 2013, Helix Japan KK since 2017, Vesper Co. Ltd. since 2018, and Independent Outside Director at Sun-Life Holding Co., Ltd. starting 2025.
Manager-Management Research Institute at Japan Management Consultants Association since 2013.
Auditor at Art-Advisary-Bank Corporation since 2005.
Former Independent Director at Ascot Corp.
Former Independent Outside Director at KATITAS Co., Ltd.

Seiichi Kumagai active positions

Companies	Position	Start
SUN-LIFE HOLDING CO.,LTD.	Director/Board Member	01/06/2025
Japan Management Consultants Association Japan Management Consultants Association Japan Management Consultants Association is a private company based in Tokyo, Japan.	Corporate Officer/Principal	01/04/2013
Oginoya KK	Director/Board Member	01/04/2013
Art-Advisary-Bank Corporation	Director/Board Member	01/09/2005
Helix Japan KK	Director/Board Member	01/03/2017
Nihon Insatsu Kogyo KK	President	01/11/2018
Vesper Co. Ltd. Vesper Co. Ltd. Real Estate DevelopmentFinance Leases, develops and manages real estate properties	Director/Board Member	01/04/2018

All active positions of Seiichi Kumagai

Former positions of Seiichi Kumagai

Companies	Position	End
ASCOT COR	Director/Board Member	-
KATITAS CO., LTD.	Director/Board Member	-

See the detail of Seiichi Kumagai's experience

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Seiichi Kumagai's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	9
KATITAS Co., Ltd. KATITAS Co., Ltd. HomebuildingConsumer Durables Engages in renovation and revitalization of housing projects	Consumer Durables
Ascot Corp. Ascot Corp. Real Estate DevelopmentFinance Provides apartments, offices, commercial and logistics facilities development & leasing and property management services	Finance
Nihon Insatsu Kogyo KK
Japan Management Consultants Association Japan Management Consultants Association Japan Management Consultants Association is a private company based in Tokyo, Japan.
Oginoya KK
Art-Advisary-Bank Corporation
Helix Japan KK
Sun-Life Holding Co., Ltd. Sun-Life Holding Co., Ltd. Other Consumer ServicesConsumer Services Provides hotel management, catering and ceremony products arrangement services	Consumer Services
Vesper Co. Ltd. Vesper Co. Ltd. Real Estate DevelopmentFinance Leases, develops and manages real estate properties	Finance