Representative Director, Chairman and CEO
Kenji Kamiyama
Kenji Kamiyama
View BiographyGraduated from The University of Tokyo,Faculty of Economics
- April 1988
- Joined The Sumitomo Bank, Ltd. (Currently Sumitomo Mitsui Banking Corp.)
- June 2001
- Joined JAC Co., Ltd. (Currently Ledax Co., Ltd.)
and appointed President and Representative Director - March 2003
- Joined Nagasakiya Co., Ltd. and appointed President and Representative Director.
- March 2009
- Joined GABA Corporation and appointed President and Representative Director.
- December 2012
- Joined Gurunavi, Inc. and appointed Director and Senior Executive Vice President.
- December 2013
- Joined World Co., Ltd. and appointed Managing Executive Officer and Assistant COO.
- June 2014
- Appointed Managing Executive Officer and COO at World Co., Ltd.
- April 2015
- Appointed Representative Director and President, Executive Officer at World Co., Ltd.
- June 2020
- Appointed Chairman of the Board at World Co., Ltd
- October 2024
- Joined OUTSOURCING Inc.and appointed Representative Director, Chairman and CEO
- January 2025
- Joined BREXA Holdings Inc. (Formerly K.K.BCJ-78 )
and appointed Representative Director, Chairman and CEO(Current Position)
Representative Director, President and COO
Takayuki Yamazaki
Takayuki Yamazaki
View BiographyGraduated from Keio University, Faculty of Policy Management
- April 1997
- Joined The Japan Research Institute, Limited
- August 1998
- Joined Intelligence, Ltd. (currently PERSOL CAREER CO., LTD.)
- July 2001
- Joined EC Serve Technology Co., Ltd. and appointed Director
(currently PERSOL PROCESS & TECHNOLOGY CO., LTD.) - October 2004
- Joined Intelligence, Ltd. and appointed Executive Officer
- April 2010
- Appointed Executive Managing Director at Intelligence, Ltd.
- December 2012
- Appointed Executive Managing Director in charge of Outsourcing Division, Asia Regional Headquarters, and China Regional Headquarters at Intelligence, Ltd.
- July 2016
- Joined Temp Holdings Co., Ltd. and appointed Executive Officer
(currently PERSOL HOLDINGS CO., LTD.)
- December 2020
- Joined PERSOL Asia Pacific Pte. Ltd. and appointed CEO (Regional Headquarters for PERSOL Group in Asia)
- September 2024
- Joined OUTSOURCING Inc.and appointed Representative Director, President, President and COO
- January 2025
- Joined BREXA Holdings Inc. (Formerly K.K.BCJ-78 )
and appointed Representative Director, President and COO (current postion)
Executive Officer CFO
Takayuki Yokota
Takayuki Yokota
View BiographyGraduated from Keio University, Faculty of Law
- April 1996
- Joined SUMITOMO CORPORATION
- December 2003
- Joined Dow Chemical Japan Limited and appointed Country Controller
- August 2006
- Joined GE Toshiba Silicones Co., Ltd.
and appointed Japan Finance Manager
(Currently Momentive Performance Materials Japan LLC) - September 2011
- Joined Unilever Asia Private Limited
and appointed Finance Director, Global Marketing Operations - August 2012
- Joined Unilever Japan Holdings K.K. and appointed Representative Director,
Vice President, Finance, Japan & Korea - July 2016
- Joined Unilever PLC
and appointed Vice President, Finance, Global Hair Care Category - January 2020
- Appointed Vice President, Financial Accounting Department, Shiseido Co., Ltd.
- January 2021
- Appointed Executive Officer and CFO at Shiseido Co., Ltd.,
- March 2021
- Appointed Director at Shiseido Co., Ltd.
- March 2024
- Appointed Corporate Executive Officer at Shiseido Co., Ltd.
- July 2024
- Joined OUTSOURCING Inc.and appointed Managing Operating Officer and CFO
- January 2025
- Joined BREXA Holdings Inc. (Formerly K.K.BCJ-78) and appointed Executive Officer and CFO (Current Position)
Executive Officer and CSO
Shingo Ikeda
Shingo Ikeda
View BiographyGraduated from Waseda University with a B.S. and M.S. in Science and Engineering (Information and Communication Engineering)
- April 2003
- Joined Roland Berger Strategy Consultants (Currently Roland Berger GmbH), Japan office
- January 2011
- Joined Roland Strategy Consultants (Currently Roland Berger GmbH), Singapore office and appointed Principal
- January 2015
- Joined Deloitte Tohmatsu Consulting LLC and appointed Executive Officer and Partner
Joined Deloitte Consulting Pte. Ltd (Singapore office) and appointed Partner - June 2019
- Joined Deloitte China （Shanghai Office） and appointed Partner
- June 2024
- Joined Deloitte Tohmatsu Consulting LLC and appointed Executive Officer and Partner
- April 2025
- Joined BREXA Holdings Inc. (Formerly K.K.BCJ-78 )
and appointed Executive Officer and CSO,Responsible for Corporate Branding Office and Corporate Strategy Office(Current Position)
Executive Officer and CAO
Masashi Umehara
Masashi Umehara
View Biography- January 1993
- Joined Nagoya Ohara Gakuen Educational Corporation
- August 1999
- Joined Noboru Imamoto Tax Accountant Office
- September 2000
- Joined Fushimi Tomoyoshi Tax Accountant Office (currently Fushimi Tax Corporation)
- December 2002
- Joined OUTSOURCING Inc.
- January 2011
- Appointed Manager of Accounting Dept. at OUTSOURCING Inc.
- August 2017
- Appointed Executive Officer at OUTSOURCING Inc.
- March 2022
- Appointed Appointed Director, General Manager of Corporate Management Division at OUTSOURCING Inc.
- January 2025
- Appointed Managing Operating Officer and CAO, General Manager of Corporate Management Division at OUTSOURCING Inc.
- January 2025
- Joined BREXA Holdings Inc. (Formerly K.K.BCJ-78 ) and appointed Executive Officer and CAO(Current Position)
Executive Officer and CGCO
Naohiro Igi
Naohiro Igi
View BiographyGraduated from Senshu University, Faculty of Economics
- March 1993
- Joined Sony Finance International, Inc.
- June 2001
- Appointed Legal Group Manager, Legal & Compliance Dept. at Sony Finance International, Inc.
- January 2010
- Joined BellSystem24,
and appointed Head of Legal & Compliance Div.
(Currently BellSystem24 Holdings, Inc.) - March 2013
- General Manager of Legal and Compliance Department at BellSystem24 Holdings, Inc.,
- February 2014
- General Manager of Legal & Compliance Div., assumed the position of General Manager of Purchase Control Div. at BellSystem24, Inc. (currently BellSystem24 Holdings, Inc., Concurrently)
- February 2016
- General Manager of Legal and Compliance Department at BellSystem24 Holdings, Inc.,
- June 2017
- General Manager of Legal and Compliance Department at BellSystem24 Holdings,
Inc.,
assumed the position of Director at BI Medical, Inc. (Concurrently) - March 2021
- General Manager of Legal and Compliance Department at BellSystem24 Holdings,
Inc.,
assumed the position of Auditor at CTC First Contact Corporation(Concurrently)
- May 2022
- Joined Solasto Corporation and appointed General Manager of Legal and Compliance Div.
- April 2023
- General Manager of Legal and Compliance Div, assumed Operating Officer, Chief Compliance Officer (CCO) at Solasto Corporation (Concurrently)
- July 2024
- Joined OUTSOURCING Inc.and appointed Senior Executive Operating Officer CCO
Head of Legal and Compliance Division(Concurrently) - January 2025
- Joined BREXA Holdings Inc.and apoointed Executive Officer and CGCO,
General Manager, Legal Division(Concurrently/Current Position)
Executive Officer and CTrO
Tomonori Tomura
Tomonori Tomura
View BiographyGraduated from The University of Tokyo, Faculty of Agriculture, Graduate School (M.S. in Life Sciences), The University of Tokyo
- April 2010
- Joined Boston Consulting Group Japan
- August 2018
- Appointed Principal
- April 2021
- Joined Thermo Fisher Scientific Japan K.K.
and appointed Director and Corporate Strategy & Marketing - October 2023
- Joined Bain Capital and appointed Senior Executive
- January 2025
- Joined BREXA Holdings Inc（Formerly K.K.BCJ-78) and appointed Executive Officer and CTrO
Responsible for Second Founding Project Office - April 2025
- Appointed Executive Officer and CTrO at BREXA Holdings Inc. (Formerly K.K.BCJ-78)
Responsible for Group Improvement Office (Current Position)
Executive Officer and CHRO
Osamu Aihara
Osamu Aihara
View BiographyGraduated from Hitotsubashi University, Faculty of Law
- April 1984
- Joined Toray Industries, Inc.
- May 2001
- Joined The GE Edison Life Insurance Co., Ltd. (Currently The Gibraltar Life
Insurance Co., Ltd.)
and appointed General Manager, Compensation & Benefits - June 2004
- Joined DHL Japan, Inc. and appointed Executive Officer, Head of Human Resources
- March 2012
- Joined Boehringer Ingelheim Japan, Inc. (Currently Nippon Boehringer Ingelheim Co., Ltd.) and appointed Director, Head of Human Resources
- September 2018
- Joined Pfizer Japan Inc.
and appointed Director, Executive Officer, Head of People Experience - May 2025
- Joined BREXA Holdings Inc. (Formerly K.K.BCJ-78)and appointed Executive Officer and CHRO
Responsible for HR Labour Relations Department, Human Resources Operations Department, and Organizational and Talent Strategy Department(Current Position)