About us

Deloitte Tohmatsu Risk Services Co., Ltd.

As a member firm of Deloitte's Cyber Risk Services(CRS) team, we provide high-quality consulting service concerning risk management.

We strengthen the ability to deal with IT risks

Today, business risks that companies encounter are expanding rapidly along with technological innovation, globalization, and strengthening of regulatory requirements. Not only to conduct the conventional type of risk management, it is also becoming important to build up a risk management system assuming risks in all fields. 

As a member firm of Deloitte's Cyber Risk Services(CRS) team, we work in close coordination with other organizations of Deloitte Tohmatsu Group (Deloitte Japan) and with member firms of Deloitte Touche Tohmatsu Limited (DTTL) throughout the world in order to provide IT risk consulting services for leading global companies and organizations.


Deloitte Tohmatsu Risk Services Co., Ltd. supports risk managements at a company and at an organization in a comprehensive manner with knowledge and past accomplishments ranging from cyber security, IT governance through business continuity management (BCM).

Cyber Security 

We provide various cyber security services based on our experience in providing services for many leading domestic and overseas companies.

Dealing with Incidents 

Deloitte supports clients to deal with crisis and to grab an “unexpected opportunity”.

ERP Security and Internal Control

In order to improve both internal controls and operational efficiency, we support to effectively utilize the internal controls implemented by ERP system.

Software Asset Management

We support to manage risks concerning software assets.

Business Continuity Management

We provide services designing the contents to meet needs in each phase of analysis, development, implementation and continuous improvement / quality assurance by utilizing Deloitte’s BCM methodology.

IT Governance

We support to develop and realize IT strategy mitigating IT risks through appropriate management and supervision.

Corporate Profile

Company Name

Deloitte Tohmatsu Risk Services Co., Ltd.


President: Mitsuhiko Maruyama

Head Office

Marunouchi Nijubashi Building


Marunouchi Nijubashi Building 3-2-3 Marunouchi, Chiyoda-ku, Tokyo 100-0005 Japan

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