Who we are



Tel: +44-77-1186-0911
E-mail: koji.tanaka@circlefield.com

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Based in the UK and Japan, Dr. Koji Tanaka is a specialist in the area of strategy, management and dispute resolution, providing independent advice and report on strategy, management, expert witness, arbitration, construction adjudication and expert determination for both domestic and international projects and stakeholders.   

He is a member of RICS, RIBA, CIArb, JIA, and drafting member of International Standards-IPMS, ICMS and IES.


RICS Registered Valuer  5625861
Royal Institute of Chartered Surveyors (registered in 2011).  FRICS. 5625861
Royal Institute of British Architects (registered in 2011).         RIBA.  20004806
Chartered Institute of Arbitrators (registered in 2010).            MCIArb. 27497
The Japan Institute of Architects                                                         JIA 1001884                                       


Academic career

2021: Doctor of Philosophy (Engineering) -Kyoto University.       PhD
2012: Bachelor of Law -The University of London, Law School.  LLB(Hons)          
1994/1992: Master and Bachelor of Engineering – Kyoto University.


Professional career

2015- Current      Circle Field Associates Limited
2008-2015    Mitsui Fudosan UK
1994-2008    Shimizu Corporation(Japan, Singapore, Dubai, UK)


Major articles and publishes 

International Property Measurement Standards (Co-author)
International Cost Management Standards (Co-author)
International Ethics Standards (Co-author)



English                                   Japanese                                   Chinese (Mandarin)


Specialist area                                                                                                                                     

Strategy and Management                                   Expert witness                                   Arbitration

Construction adjudication                                   Expert determination                           


CV-Koji Tanaka(ENG)

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