DQ Investigation

We provide best risk management solutions
and Anti-Fraud solutions.

D-Quest Holdings, Inc. is a Tokyo-based full-service corporate investigative agency offering due diligence investigations, background checks, and intellectual property rights protection investigations/support, in particular anti-counterfeit measures and infringement investigations.
We have associates around the world including Japan, China, SouthKorea, Hong Kong, Thailand, Indonesia, Vietnam, U.S.A.and Europe. With our high expertise and wide intelligence network, we provide comprehensive and accurate business intelligence to our clients in both individuals and organizations.

A world leader in training fraud-prevention experts
The only ACFE-certified investigative agency in Japan

In October 2004, DQG entered into a licensing agreement with the Association of Certified Fraud Examiners (ACFE), a world leader in the expert training of fraud investigators.
Established in 1998, the ACFE consists of over 85,000 professional fraud investigators in about 200 branches throughout the world. The title of certified fraud examiner (CFE) awarded by the association is an internationally recognized qualification held in high regard by U.S. institutions such as the Government Accountability Office, the Federal Bureau of Investigation, and the Pentagon.
DQG-related association: ACFE JAPAN


Background Check Services
DQ Investigation offers background check services with dedicated internet researchers and comprehensive investigation experts for delivering intelligence to our clients instantly.
Basic Background Check Services
With many research options of background check services, it might be difficult to know which option is necessary for your needs.
Our experts highlighted a number of researchs for you to select.
To avoid any complexity of background checks, we provide simple basic background check services with reasonable price.
Due Diligence Services
Our due diligence research and investigations are useful to support and guide organizations making the right decisions in corporate disputes.
We provide the most up-to-date and accurate information to our clients to prevent risks and take the best actions.
Counterfeit Products Check Services
While there are some general precautions you can take to avoid buying counterfeits, we provide our services could also help companies identify all of copyright infringement. Our services involve identifing the genuineness of the products, product packages or selling stores and so on.
A flawless information-security system
To manage sensitive data, DQG has acquired the relevant certifications (ISMS certifications ISO/IEC 27001:2013 / JIS Q 27001:2014 [ISR025]) and built and maintains a complete system for managing information security.