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.
Private investigation firm serving individuals, businesses, law firms, investors and insurance companies. Located at 2-6-20-504 Kitashinjuku, Shinjuku, Tokyo 169-0074.
Competitive intelligence, fraud, spousal infidelity, locating missing people
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.
Spectrum OSO Asia (Japan Office)
Business and competitive intelligence services. Tokyo office is located at NITTO Building 6F, 126 Yaraicho, Shinjuku-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...
Tokyo Tantei Chosa-shi Kai
Nationwide hotline for people search.
Argus Research
Private investigator. Tokyo office located at Yamada Building 2F, 5-18-11 Nishi-Nippori, Arakawa-ku.
Japan Private Investigator
Private investigation and risk protection group.
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.
Private Detective AG
Private Detective Agency in Tokyo, Japan. Office located at 3-2-27 Nishi-Shinjuku.
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.