Japan PI Tokyo

Private Investigators serving Tokyo, Yokohama, and more.

Japan’s Premiere Bilingual PI Agency

About Us

Japan PI Inc. is a full service bilingual Private Investigator Agency with an office in Shinjuku-ku, Tokyo Japan. We’ve been in business since 2002, and our lead agent, Goro Koyama, has 27 years of experience as a Private Detective. We are the only agency where you can communicate directly with field agents in English.

From our Shinjuku office, we serve the 23 districts (ku) in Tokyo, as well as West Tokyo, Yokohama, Kanagawa, Chiba & Saitama.



Japan PI Inc.

2-6-20-504 Kitashinshuku, Shinjuku-ku,
Tōkyō-to 169-0074, Japan
P. 03-3362-3939

Japan PI Inc. Google Maps

Surveillance in Japan

Who We Serve

  • Individuals
  • Businesses
  • Investors
  • Insurance Companies
  • Law Firms & Attorneys
We serve both foreign companies & individuals seeking services in Japan, as well as domestic Japanese companies & individuals.

Services We Offer:

  • Surveillance
  • People Search
  • Find Lost Family
  • Background Checks
  • Company Investigations
  • Corporate Due Diligence
  • Service of Process

Why Japan PI?

We serve you with honesty and get things done with the best efficiency.

Integrity and Efficiency

We serve you with honesty and get things done with the best efficiency.

Legal Assistance

Legal Assistance

We specialize in assisting attorneys based on our rich experience in legal matters.

Bilingual PI

Bilingual PI

We specialize in cultural bridge services with a fusion of private investigation and translation.

To learn more about Japan PI:

  • Who we are & what we stand for
  • Who we serve
  • Why we are better
  • Services we offer

Head over to our home page to learn more.

Learn More About Japan PI

"I cannot tell you how pleased I am for your work... Perhaps we shall meet some day, but if not, I hope you know you have made a fundamental difference in my life and with several other people. In my culture, we have a word, mensch, which means a really good person, one whom you can trust and respect. You, sir, are a mensch. It is an honor to have worked with you."
Mark D

Contact Japan PI

For more info, contact an English speaking agent now

Scroll to Top
Scroll to Top