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Trusted Detective Agency in Singapore

GAMSI Detective is a trusted private detective agency in Singapore with extensive experience in the investigation industry. Our well-established network of skilled investigators works across the nation to provide confidential and dependable investigative solutions.

We Respect Your Confidentiality & Privacy!

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Private detective agency in Singapore

Trusted Private Detective Agency in Singapore

Top Private Personal Background Check  Surveillance Pre Marriage Corporate Private Detective & Investigation Agency in Singapore

Discreet & Professional Private Detective Services

If Doubts are making you feel stress, Our private detectives are Here to Help You know the Truth!

In a city like Singapore where personal and business matters often intersect, clear and verified information becomes essential when dealing with sensitive situations. Our private investigators provide discreet and well-organized investigation services for individuals, companies, and legal professionals who need reliable answers.

It is your right to know the truth, supported by clear and reliable evidence.

That’s where GAMSI Detective Agency makes a difference. Backed by years of investigation experience and a professional team of trained male and female detectives, every case is managed with professionalism, confidentiality, and a structured investigative approach.

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Our professional investigation services in Singapore

Choosing a professional private detective agency in Singapore means partnering with investigators who understand responsibility and discretion. People seek investigation services when they need reliable answers, clear communication, and properly documented evidence. Our investigators manage each case with a structured and ethical approach to deliver clarity while maintaining the client’s privacy completely.

Matrimonial Detective Agency in Singapore

1. Pre Matrimonial Investigation Services

When it comes to trust and commitment, clarity is important. Our pre-marital background verification and partner screening services in Singapore are designed to help individuals and families gain reliable information before taking any decision.

We will verify:

  • Family background and general reputation assessment.
  • Criminal records (if any).
  • Job, salary, office, and Designation.
  • Bad Habits like smoking, alcoholic, abuser, or gambler.
  • Previous associations and love affairs (If Any).

“Knowing the truth before marriage can prevent a lifetime of regret later.”

2. Post-Marriage Investigation Services

When a spouse’s behavior changes unexpectedly such as frequent late-night outings, secretive communication, emotional withdrawal, or unexplained financial activity, it can lead to uncertainty and emotional strain. Situations like these often leave individuals searching for clear and reliable answers.

As a reliable private detective agency, we provide confidential post-marital investigation services that help individuals understand sensitive situations with clarity and proper information.

Our investigators treat every matrimonial case with complete confidentiality and careful planning. We understand that personal situations require sensitivity and respect, which is why our investigators work with professionalism and discretion to safeguard your privacy throughout the entire process.

  • Investigation of potential extramarital involvement.
  • Professional surveillance services (where appropriate and responsibly conducted).
  • Verification of financial secrecy or hidden transactions.
  • Monitoring unusual or inconsistent behaviour patterns.
  • Discreet background checks on unknown associations.

Our purpose is not to create conflict, but to provide clarity through verified information. With accurate information, you can make personal decisions with confidence and peace of mind.

If you are finding a trusted private detective for matrimonial or post-marital concerns, our team is ready to assist you through a private and confidential consultation.

You’ll be shown real-time evidences (videos/pics) to make an informed decision at the end.

3. Physical Surveillance Services

Our private investigators in Singapore conduct surveillance operations with strict discretion and structured planning. Every assignment is conducted carefully to ensure responsible investigation practices while collecting reliable information in a lawful and ethical way.

 We quietly observe the targeted person to gather all the evidences.

  • Whom they meet where they go.
  • Day & night movement tracking.
  • Photos, videos, vehicle numbers.

All this is done discreetly and legally by our trained professional investigators in Singapore.

Relationship & Loyalty Test Investigation Service

When doubt starts replacing trust, having clear answers becomes important. If you feel that your partner may be hiding something, our relationship and loyalty investigation services can help you find the truth in a careful and confidential manner.

  • Know if your spouse if he/she is loyal to you or not?
  • Recognize flirting, cheating, or lying to you.
  • Collect emotional and visual evidence.

“Facing the truth may be difficult, but living with a lie is far worse.”

5. Cyber Crime & Digital Fraud Investigation

In today’s technology-driven world, risks and threats can appear directly on your laptop or smartphone without warning.

We handle:

  • Email or social media hacking.
  • Blackmail or online threats.
  • Cyberstalking or fake profiles.
  • Identity theft or financial fraud.

We’ll combine our technology with investigation to identify and track cyber criminals.

7. Background Verification Service.

As a private investigation agency based in Singapore, we conduct detailed background verification for individuals, corporate clients, and legal professionals. This may involve verifying employment records, reviewing financial details, checking reputation, and examining relevant associations. Each case is handled with care to ensure accurate findings and full confidentiality.

Our strong network of investigators across Singapore and legal tools help us find proofs.


Why people trust us as the most reliable detective agency in Singapore

  • 100% Confidentiality Guaranteed

We are a trusted detective agency that values your privacy above all, your identity and case information will stay only with us. Never to be disclosed to anyone under any circumstances.

  • Evidence-Based Reporting

You get a complete report of investigation with accompanying videos, images, and timeline report to guide your decision-making.

  • Fast Turnaround Time

Typically it will take us 2 to 7 days for the average personal investigation process. You will be informed at every stage.

Affordable Private Detective Charges

Investigation Service Package rates begin at just SGD $60, No hidden charges.

  • Experienced Team of Private detectives in Singapore

– Our investigation team in Singapore consists of experienced private detectives, ex-police officers, and cybersecurity experts. Both male and female investigators are available to handle different types of cases.

  • Emotional Support

– We understand in what pain and stress you are going through. We respectfully listen to you without any judgement.

Licensed Investigators – Lawful Evidence, Real Results.

Each case is handled with proper planning and attention to detail by our investigators in Singapore. We follow responsible investigation practices, protect sensitive information and maintain clear communication with clients during every stage of the investigation.

We prioritize transparency from the very beginning. Before starting any process, we clearly mention what can realistically and responsibly be undertaken within professional and legal boundaries, to ensure there are no misunderstandings later. You will have a clear vision of how the investigation will proceed, what type of documents or findings may be gathered and how that information can be used. This is particularly important for NRIs and international clients managing matters in Singapore from overseas.

The Importance of Professional Investigation Standards in Singapore.

Working with an unlicensed investigator in Singapore can cause more harm than good. Evidence obtained through improper methods may not be legally admissible and could expose you to additional risks. For this reason, selecting a licensed private detective agency in Singapore is not just a formality but a necessary safeguard.

When you choose our services, you are partnering with professional investigators who operate in accordance with Singapore laws, maintain strict privacy standards, and deliver reliable and well-documented results. Whether your case involves personal concerns, business matters, or possible legal issues, you can move forward with confidence knowing your case is handled carefully and professionally.

How we Helped a Client in Singapore.

At GAMSI Detective Agency, our work is more than just completing a task. Every case represents someone’s trust, emotions and future. Clients come to us during uncertain moments, with unanswered questions, carrying doubts and concerns that affect important life decisions. We consider it as a responsibility and a privilege to help them with clarity, brutal truth and peace of mind through structured and professional investigation services.

Below is a story of one of our clients in Singapore whose situation changed after seeking our investigative support.


Ms. Jasmine Tan approached our investigation team before moving forward with her marriage. While planning her future, she wanted to verify certain details about her partner’s employment and background, as some information did not seem completely clear.

After understanding the situation, our investigators conducted a discreet background verification process. This included checking employment details, reviewing publicly available records, and confirming certain claims made by the partner.

Within a few days, our team prepared a clear and properly documented report for the client. The findings helped Ms. Tan understand the situation better and make an informed decision about her future with confidence.

– Ms. Jasmine Tan (Tampines, Singapore)

Please Note: The testimonial we shared above has been mentioned with the client’s official consent. At GAMSI Detective agency, we strictly respect and protect the privacy of our every client. Your trust and privacy are our top priority.


Some Cities where our private detectives operates in Singapore

Our Local Private Investigators Are Active In:

  • Singapore
  • Central Business District
  • Jurong East
  • Tampines
  • Woodlands
  • Bedok
  • Ang Mo Kio
  • Yishun
  • Punggol
  • Pasir Ris
Contact the Best Private Detective company in Singapore!
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Singapore's Leading Private Investigation Company

Our Detective Services

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Why Choose Us?

Most affordable Detectives in Singapore.

Your trusted and certified detective and investigation partner agency. Contact us Now!

Experienced Detectives
17+ Years of Experience

With years of experience, Founders leads Gamsi Detectives with heart, heritage, and a passion for justice.

Succecfully Solved Investigations
Successfully Solved Cases

Our dedicated team of private detectives has successfully solved thousands of cases, earning us the trust of countless individuals and businesses. That’s why we stands proud as Singapore’s most trusted and authentic detective agency.

Team of Experienced Detective Agents
Team of Experienced Detectives

With a team of highly experienced detective agents, we’ve earned a 92% success rate in matrimonial investigations—because your peace of mind matters.

Confidentiality
Confidentiality

We deeply respect your privacy. Every detail you share stays 100% confidential, always safe, never shared. 

Transparency
Transparency

As a professional and top private detective agency in Singapore, we believe in complete transparency, sharing every proof with our clients. Because your peace of mind is our ultimate goal.

Prompt Results
Prompt Results

Cases are handled quickly & we are available 24/7 to assist. You will be receiving ongoing private investigation information and guidance every time. 

What services Gamsi Detective agency in Singapore offer?

GAMSI detective agency in Singapore can be helpful for matrimonial verification, background check, loyalty test, pre-wedding background verification, after wedding investigation, physical tracking, employee verification, company fraud case, missing person trace, and taking evidence for legal matters.

Time depends upon the investigation type. Certain cases could take days, while those that involve rigorous tracking verification could take weeks. It all depends upon the case. Kindly Connect with us via call or WhatsApp to get more accurate information.

Yes! This is called a pre-matrimonial investigation or before marriage background check and is very common in Singapore. It helps verify details about a person’s background, habits, job, family and also criminal records (if any) before taking big life decisions. Connect with us for more get free consultation.

Private detectives can provide documents, findings and reports. However, admissibility in court depends on how the information was gathered and the legal requirements of the province.

Look for agencies with good reviews, verified experience, licensed professionals, and a strong track record of handling cases similar to yours. GAMSI Detectives is the best, trusted and award winning detective agency in Singapore.

Surveillance is legal in the Singapore when conducted in public places and within legal boundaries. Investigators cannot trespass, invade private property, or violate reasonable expectations of privacy. We ensure all surveillance activities comply with applicable state laws.

The cost of hiring a private detective in Singapore generally ranges between SGD $700–$2,000+, depending on the type of case, complexity, and duration of the investigation. Simple background checks may cost less, while corporate fraud investigations or extended surveillance assignments can require higher fees. At GAMSI Detectives, we offer professional and cost-effective investigation services in Singapore, ensuring discretion, reliability, and structured reporting in every case.

Absolutely! A professional detective agency like GAMSI Detectives in Singapore ensures complete secrecy of your identity and case details, so you can trust them fully.

Absolutely. NRIs and overseas clients can legally hire a detective agency in the Singapore. The investigation is conducted within Singapore jurisdiction and laws, while clients receive regular updates remotely through secure communication channels.

It’s recommended to meet once to discuss the case in detail, but many agencies also allow secure communication through phone, email, or encrypted apps.

Surveillance is permitted when conducted responsibly and within legal boundaries. Investigators must comply with state laws regarding privacy and monitoring.

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