Theodorus Niemeijer

Partner, Deloitte Touche Tohmatsu LLC

Theodorus Niemeijer

Marunouchi Nijubashi Building

3-2-3 Marunouchi, Chiyoda-ku



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Theodorus (Theo) leads the International Service Group (ISG) in Risk Advisory Japan. The ISG is a diverse and multi-national team that focusses on supporting foreign firms in Japan and Japanese firms operating abroad. The ISG aims to identify, pursue and deliver cross-border risk advisory projects in close collaboration with Partners in Japan and Deloitte Partners overseas (NSE, US, DCE, AP). By establishing virtual international teams, the ISG drives and coordinates these international collaboration activities. The ISG target services and solutions cover the complete global risk advisory offering portfolio.

Theo’s personal competency area is in the domain of Cyber & Strategic Risk, with a special interest in security risk management, cyber transformations and crisis and resilience. He has extensive experience with servicing clients globally across several industries including Power and Utility, Industrial Products, Consumer, Telecommunications and Banking.

Theo joined Deloitte in 2013 in the Netherlands and transferred to Japan in 2018.

Theodorus Niemeijer