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Strictly Confidential Detective Agency

Why Not Clear Up Those Doubts with Solid Evidence?

Licensed agency
Strictly confidential
Open 24 hours
Transparent fees
Consultation Record
3,200+ Total ConsultationsBuilding Trust Through Every Consultation Since Our Founding.
96% Client Satisfaction RateBased on Post-Investigation Client Surveys
0¥ Free Consultation & EstimateFree of Charge, as Many Times as You Need.
Why Trust Research

Four Reasons Clients Trust Us

Wondering whether you can trust us with your concerns? Here are four commitments that set Trust Research apart.

01

Court-Ready Evidence

Court-Ready Evidence
02

Transparent Pricing with Written Estimates

Transparent Pricing with Written Estimates
03

Strict Confidentiality Guaranteed

Strict Confidentiality Guaranteed
04

Dedicated Support Beyond the Investigation

Dedicated Support Beyond the Investigation
Are You Facing Any of These Concerns?

Don't Let Uncertainty Hold You Back — Get the Answers You Need.

Q.

Recently, my partner has been coming home later than usual and has become unusually protective of their phone. I can't stop worrying that they may be having an affair.

Q.

I would like to locate a family member or former partner who has become unreachable, but I do not have the means or information to find them myself.

Q.

I am experiencing harassment or stalking, but I do not have enough evidence. Even after consulting the police, no action has been taken.

Q.

I am considering divorce or seeking compensation, but I do not know how to obtain evidence that will stand up in court.

Q.

I have concerns about the background and credibility of a business associate or potential spouse. Before making an important commitment, I would like to confirm the facts.

Q.

I do not know who to turn to for help, so I have been carrying these concerns on my own for far too long.

If any of these concerns resonate with you, let us help you find the answers you need. It all starts with a conversation.

Flow

How It Works

From your first consultation to resolution in four simple steps.

Free Consultation
STEP 01

Free Consultation

Written Estimate & Agreement
STEP 02

Written Estimate & Agreement

Investigation
STEP 03

Investigation

Report & Ongoing Support
STEP 04

Report & Ongoing Support

Message

Message from the Founder and Co-Representative

Muneyoshi Yamamoto
Representative Director Muneyoshi Yamamoto

My name is Muneyoshi Yamamoto, Representative of Trust Research.

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Yuichi Nakai
Co-Representative Yuichi Nakai

My name is Yuichi Nakai, Co-Representative of Trust Research.

Read full message →
Voice

Client Testimonials

★★★★★
Infidelity Investigation / Female Client, 40s
★★★★★
People Search Investigation / Male Client, 50s
★★★★☆
Personal Conduct Investigation / Female Client, 30s
★★★★★
Pre-Marriage Background Check / Male Client, 30s
★★★★☆
Anti-Stalking Investigation / Female Client, 20s
★★★★★
Corporate Investigation / Male Client, 40s
Start with a Conversation.

Start with a Conversation.

You do not have to face this alone. Tell us your concerns. There is no obligation to hire us, and consultations are always free.

You don't have to carry this alone — reach out anytime, with no obligation.