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IZUMI group Inc.

IZUMI Group is a holding company centered on architectural design support, operating through four group companies specializing in building environment/disaster prevention consulting, MEP design, energy-saving calculations, and BIM solutions. Key subsidiaries include Izumi Consulting Co., Ltd. (environmental certification such as CASBEE/LEED, ZEB/ZEH-M energy consulting, and proprietary BIM software including cloud service 'B-LOOP') and Wani Sekkei Co., Ltd. (MEP design and energy-saving calculation support). The group leverages BIM-driven DX and carbon-neutral consulting to serve general contractors, subcontractors, design firms, and municipalities, with BPO operations in Vietnam and China.

Market Cap
¥—B
EV
¥—B
Stock¥811
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
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LTM EV/EBIT
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LTM PER
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LTM PBR
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Performance & Balance
Revenue 5Y (¥B)
3.53US$22.5M'24/63.95US$25.2M'25/64.46US$28.5M'26/6
Net Income 5Y (¥B)
0.23US$1.49M'24/60.48US$3.09M'25/60.67US$4.27M'26/6
Shareholders
Top 10 hold 100.0%
as of 2026-09-30 · Source: Annual Securities Report
1
SPRING Co., Ltd.
35.35%
2
Hito Communications Co., Ltd.
32.34%
3
Yasuhito KOIKE
30.05%
4
Toru SAKAGAMI
2.26%
Management
5 officers
Yasuhito KOIKE
Representative Director, President
Apr. 1999: Joined Kume Sekkei Co., Ltd. / Apr. 2005: Appointed Director, Izumi System Sekkei Co., Ltd. (now Izumi Consulting Co., Ltd.) / Oct. 2007: Appointed Representative Director, Izumi System Sekkei Tokyo Co., Ltd. (absorbed into Izumi System Sekkei Co., Ltd. in Jul. 2013) / Apr. 2011: Appointed Representative Director, Izumi System Sekkei Co., Ltd. (current) / Jul. 2017: Appointed Representative Director, CONIT Co., Ltd. / Jul. 2020: Appointed Director, CONIT Co., Ltd. / Nov. 2021: Appointed Representative Director, the Company (current) / Dec. 2021: Appointed Director & CEO, Wani Sekkei Co., Ltd. (current) / Jan. 2022: Appointed Chairman of the Board, IZUMI CONSULTING VIETNAM CO., LTD. (current) / Jun. 2024: Appointed Chairman, Izumi Partner (Shenyang) Information Technology Co., Ltd. (current)
1976-09-30
Toru SAKAUE
Senior Managing Director
Apr. 1992: Joined Kume Sekkei Co., Ltd. / Jan. 2011: Joined Izumi Sekkei Tokyo Co., Ltd. (absorbed into Izumi System Sekkei Co., Ltd. in Jul. 2013) / Dec. 2014: Appointed Director, Izumi System Sekkei Co., Ltd. (now Izumi Consulting Co., Ltd.) / Dec. 2018: Appointed Senior Managing Director, Izumi System Sekkei Co., Ltd. (current) / Nov. 2021: Appointed Senior Managing Director, the Company (current) / May 2024: Appointed President & Director, IZUMI CONSULTING VIETNAM CO., LTD. / Jun. 2024: Appointed Director, Izumi Partner (Shenyang) Information Technology Co., Ltd. (current)
1966-05-11
Munehiko YANAGISAWA
Director
Apr. 1989: Joined Toda Construction Co., Ltd. / Apr. 2026: Joined the Company; Appointed Executive Officer / Jun. 2026: Appointed Director, the Company (current)
1966-02-10
Susumu FUJISAWA
Director
Apr. 1989: Joined Kume Architects & Engineers Co., Ltd. (now Kume Sekkei Co., Ltd.) / Sep. 2017: Appointed Representative Director & President of the same company / Jul. 2025: Established Fujisawa Susumu Architectural Institute; Appointed Representative (current) / Jan. 2026: Appointed Advisor, the Company / Jun. 2026: Appointed Director, the Company (current)
1961-05-25
Tadashi OTSUKA
Audit & Supervisory Board Member
Apr. 1999: Joined Otsuka Tanida Law Office / Dec. 2009: Joined Fukada Ito Registration Office / Apr. 2010: Established Otsuka Judicial Scrivener & Administrative Scrivener Office; Appointed Representative (current) / Jan. 2022: Appointed Auditor, Wani Sekkei Co., Ltd. / Jun. 2024: Appointed Auditor, the Company (current); Appointed Auditor, Izumi Consulting Co., Ltd.
1977-02-11
Large Shareholding Reports
No filings
Disclosures
No disclosures
Primary Source Filings
TDnet
2026-09-30
発行者情報
FY ending Jun 2026
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