Private Investigators & Detectives

English-speaking detectives that perform undercover work including stake outs, following cheating spouses or lovers, child abduction cases, divorce, mystery shopping, competitive intelligence, locating missing people and private investigative work.

Galu Agency
Detective agency for personal state and corporate relationship research. Located at Izumishoji Hitotsugi Building 5F, 3-19-9 Akasaka, Minato-ku, Tokyo 107-0052.
Tokyo Tantei Chosa-shi Kai
Nationwide hotline for people search.
Private Detective AG
Private Detective Agency in Tokyo, Japan. Office located at 3-2-27 Nishi-Shinjuku.
Japan Private Investigator
Private investigation and risk protection group.
D-Quest Incorporated
Full range of intelligence and risk management services, from due diligence to background checks, competitor intelligence and intellectual property rights protection. Located at Ryumeikan-honten Building 12F, 3-4 Kandasurugadai, Chiyoda-ku.
Japan PI Inc.
We are a Bilingual full-service Private Investigation firm in Tokyo & Osaka. We serve Individuals, Businesses, Law Firms, Investors & Insurance Companies.
Argus Research
Private investigator. Tokyo office located at Yamada Building 2F, 5-18-11 Nishi-Nippori, Arakawa-ku.
Teitan Co., Ltd. (Teikoku Private Detective Agency)
Japan private detective agency that provides investigative services such as: Background investigations, Spouse/partner surveillance, Missing persons, Undercover work, Stakeout, Photography, Japanese records research, Missing persons, Child abduction, Trad...
Competitive intelligence, fraud, spousal infidelity, locating missing people
Investigations Japan
Investigations Japan helps solve cases of fraud, blackmail, stalking, spousal infidelity, embassy proxy services, stop divorce, stop adoption, copyright search, pre-employment background check & more.
Spectrum OSO Asia (Japan Office)
Business and competitive intelligence services. Tokyo office is located at NITTO Building 6F, 126 Yaraicho, Shinjuku-ku.