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.

Competitive intelligence, fraud, spousal infidelity, locating missing people
Detective agency for cheating investigation, marriage fraud, fight against stalkers, bullying abuse, trial data collection, background check and whereabouts survey. Located at 3-7-1 Shimane, Adachi-ku.
Investigation services in Japan range from surveillance, limited records research and locate investigations.
Nationwide hotline for people search.
Background check, marriage investigation, adoption and human resources research, credit check and industry research. Located at 4-20-1 Sendagaya, Shibuya-ku.
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.
Detective agency for personal state and corporate relationship research. Located at Izumishoji Hitotsugi Building 5F, 3-19-9 Akasaka, Minato-ku, Tokyo 107-0052.
Data investigation, people search, surveillance, executive protection and undercover agents.
Detective and research agency. Located at Mizorogi Building, 1-4-13 Shinjuku, Shinjuku-ku.
Detective and investigation agency for marital issues, employee verification, under-cover operations, missing person investigation, corporate and fraud, theft, surveillance, shadowing investigation, recovery services, tracing individuals and companies.
Business and competitive intelligence services. Tokyo office is located at NITTO Building 6F, 126 Yaraicho, Shinjuku-ku.
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.
Private investigation and risk protection group.
Private investigation for cheating, affairs and divorce.
Private investigator. Tokyo office located at Yamada Building 2F, 5-18-11 Nishi-Nippori, Arakawa-ku.
Private Detective Agency in Tokyo, Japan. Office located at 3-2-27 Nishi-Shinjuku.
Private investigation firm serving individuals, businesses, law firms, investors and insurance companies. Located at 2-6-20-504 Kitashinjuku, Shinjuku, Tokyo 169-0074.
17 Listings