Our inclusion reflects formal recognition within the legal community. This affirms our commitment to maintaining the highest standards of professionalism, discretion, and reliability in supporting legal practitioners and clients across Singapore and the wider region.
In Singapore, providing private investigation services requires a Private Investigation Agency (PIA) Licence issued by the Police Licensing and Regulatory Department (PLRD) of the Singapore Police Force (SPF). Only licensed agencies can legally accept assignments from clients.
This affirms our commitment to maintaining the highest standards of professionalism, discretion, and reliability in supporting legal practitioners and clients across Singapore and the wider region.
Why We are The Leading Private Investigation Agency in Asia
Asia Top Investigation upholds stringent professional and regulatory standards across all operations. Our qualifications, licensing credentials, certifications, and performance awards reflect a steadfast commitment to compliance, operational excellence, and the consistent delivery of reliable investigative services.
Matrimonial Investigations
When trust is called into question, clarity becomes essential. Asia Top Investigation provides discreet, professional matrimonial investigation services to help individuals address concerns surrounding infidelity, unexplained behaviour, or other relationship-related suspicions with confidence and certainty. Our experienced investigators conduct thorough, evidence-based inquiries with the utmost confidentiality, delivering clear and factual findings to support informed personal decisions. We are committed to providing reliable investigative solutions with professionalism, discretion, and cost-effective efficiency.
Contact us for a confidential consultation.
As Featured in
400+ Featured
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Asia Top Investigation
Matrimonial Investigations
When trust is called into question, clarity becomes essential. Asia Top Investigation provides discreet, professional matrimonial investigation services to help individuals address concerns surrounding infidelity, unexplained behaviour, or other relationship-related suspicions with confidence and certainty. Our experienced investigators conduct thorough, evidence-based inquiries with the utmost confidentiality, delivering clear and factual findings to support informed personal decisions. We are committed to providing reliable investigative solutions with professionalism, discretion, and cost-effective efficiency.
Contact us for a confidential consultation.
As Featured In
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Ivan Tan
Head of Cybersecurity
Ivan Tan holds a Bachelor’s degree in Business and a cybersecurity certification from the National University of Singapore. With over eight years of experience in private investigations, he specialises in matrimonial surveillance and digital forensics. As Lead Investigator, Ivan directs the agency’s operational and strategic functions, overseeing complex investigations from intelligence planning through to evidence delivery. He is experienced in coordinating multi-operator surveillance teams, designing covert operations, and integrating digital forensics with field intelligence to produce comprehensive, court-admissible case files. His ability to align on-ground surveillance with technical analysis enables clients to make informed decisions in time-sensitive and high-stakes situations. His expertise includes digital evidence recovery, behavioural pattern analysis, and the application of advanced surveillance technologies to ensure evidential accuracy and legal integrity. Ivan is particularly adept at handling sensitive matrimonial matters, where discretion, precision, and timing are critical. Known for his disciplined and methodical approach, Ivan maintains strict confidentiality while providing clients with clear, structured guidance throughout each stage of the investigation. Under his leadership, the agency continues to advance its investigative capabilities while upholding the rigour, ethics, and results-driven standards established by its founders.
Vincent Tan
Founder / Advisor
Vincent Tan is a veteran private investigator with over three decades of experience, having overseen more than 10,000 cases since 1990. Recognised for his expertise in complex matrimonial investigations and honoured with the “Asia Top Investigator” award in 2012, he provides strategic advisory support on high-level and sensitive cases.
Steven
Head of Surveillance Operations
Steven brings over 25 years of specialised experience in covert and counter-surveillance operations. A respected international trainer and practitioner, he advises on advanced surveillance methodologies and supports the agency with his deep field expertise and global network.
...and 400+ More!
Specialised in Matrimonial Private Investigation Services
With over 30 years of industry experience and more than 10,000 cases handled since 1990, veteran investigator Vincent Tan has established ATI as a trusted name within Singapore’s investigative sector.
Internationally recognised by the Council of International Investigators, he continues to lead complex investigations with precision, discretion, and integrity. Asia Top Investigation is a licensed Singapore private investigation agency recognised for delivering discreet, professional, and results-driven investigative services. Officially licensed by the Singapore Police Force and awarded the Singapore SME500 Award in 2023, the agency is committed to maintaining the highest standards of operational excellence, confidentiality, and professionalism. ATI provides a comprehensive range of investigative services, including matrimonial and infidelity investigations, surveillance operations, background checks, digital forensics, and corporate investigations. Supported by Operations Manager Ivan Tan and a team of licensed investigators, the agency combines extensive field expertise with advanced investigative technology to deliver accurate and actionable findings. Trusted by both private individuals and corporate clients, Asia Top Investigation remains dedicated to uncovering the truth through ethical, confidential, and professional investigative practices.
Ivan Tan
Head of Cybersecurity
Ivan Tan holds a Bachelor’s degree in Business and a cybersecurity certification from the National University of Singapore. With over eight years of experience in private investigations, he specialises in matrimonial surveillance and digital forensics. As Lead Investigator, Ivan directs the agency’s operational and strategic functions, overseeing complex investigations from intelligence planning through to evidence delivery. He is experienced in coordinating multi-operator surveillance teams, designing covert operations, and integrating digital forensics with field intelligence to produce comprehensive, court-admissible case files. His ability to align on-ground surveillance with technical analysis enables clients to make informed decisions in time-sensitive and high-stakes situations. His expertise includes digital evidence recovery, behavioural pattern analysis, and the application of advanced surveillance technologies to ensure evidential accuracy and legal integrity. Ivan is particularly adept at handling sensitive matrimonial matters, where discretion, precision, and timing are critical. Known for his disciplined and methodical approach, Ivan maintains strict confidentiality while providing clients with clear, structured guidance throughout each stage of the investigation. Under his leadership, the agency continues to advance its investigative capabilities while upholding the rigour, ethics, and results-driven standards established by its founders.
Vincent Tan is a veteran private investigator with over three decades of experience, having overseen more than 10,000 cases since 1990. Recognised for his expertise in complex matrimonial investigations and honoured with the “Asia Top Investigator” award in 2012, he provides strategic advisory support on high-level and sensitive cases.
Vincent Tan
Founder / Advisor
Steven
Head of Surveillance Operations
Steven brings over 25 years of specialised experience in covert and counter-surveillance operations. A respected international trainer and practitioner, he advises on advanced surveillance methodologies and supports the agency with his deep field expertise and global network.
Specialised in Matrimonial Private Investigation Services
With over 30 years of industry experience and more than 10,000 cases handled since 1990, veteran investigator Vincent Tan has established ATI as a trusted name within Singapore’s investigative sector.
Internationally recognised by the Council of International Investigators, he continues to lead complex investigations with precision, discretion, and integrity. Asia Top Investigation is a licensed Singapore private investigation agency recognised for delivering discreet, professional, and results-driven investigative services. Officially licensed by the Singapore Police Force and awarded the Singapore SME500 Award in 2023, the agency is committed to maintaining the highest standards of operational excellence, confidentiality, and professionalism. ATI provides a comprehensive range of investigative services, including matrimonial and infidelity investigations, surveillance operations, background checks, digital forensics, and corporate investigations. Supported by Operations Manager Ivan Tan and a team of licensed investigators, the agency combines extensive field expertise with advanced investigative technology to deliver accurate and actionable findings. Trusted by both private individuals and corporate clients, Asia Top Investigation remains dedicated to uncovering the truth through ethical, confidential, and professional investigative practices.
Featured on Mediacorp Channel 8’s
星期二特写 (30 December 2025)
The footage shown is a dramatized reenactment for illustrative purposes only. No actual investigative equipment or operational methods are depicted, in accordance with strict confidentiality obligations and the protection of proprietary investigative practices.
CNA938 Live Radio Chat with Ivan Tan
A man spent a decade secretly filming women, including his sisters, cousin and students, using spy camera pens. As surveillance tech becomes more accessible and harder to spot, where do we draw the line between privacy, safety, and legitimate use?
Lance Alexander and Daniel Martin speak with Ivan Tan, Manager of Asia Top Investigation.
A man used Al to create a fake nude image of a woman and hid cameras at her workplace. And in another case, a man was jailed for filming four men in a shipyard toilet. These happened in offices and restrooms - spaces we use every day. Should you be checking for hidden cameras?
Daniel Martin speaks with Ivan Tan, Cybersecurity Expert from Asia Top Investigation.
A 30-year-old Malaysian man was recently sentenced to four weeks' jail for exposing himself to a 15-year-old boy in a public toilet at Senja Hawker Centre. What should you do if you encounter a flasher?
Daniel Martin speaks with Ivan Tan, a licensed private investigator and operations manager at Asia Top Investigation.
Overseas Surveillance Conducted by Local Operatives
All surveillance operations are carried out with strict adherence to confidentiality and operational discretion by qualified local operatives deployed overseas.
*To protect client privacy and sensitive case details, no actual case footage or identifying materials are disclosed or used in any published content.
Client Testimonials
Li Fei
Im glad that I came upon Asia Top Investigation through Google Search when I am in desperate need of a PI.Mr Vincent Tan has provided me an exceptional, professional, responsive and discreet service. I was nervous and emotional, but he handled my situation with empathy by providing good advice Thanks to the efficient of Vincent and his team, I was update the findings throughout the investigation.if you need a service that come with kindness, professionalism and above all making you feel safe and better.
Coco Chanel
I regret not finding Vincent from Asia PI Firm earlier. My first experience with another investigator (KKS/catchcheatingsP***) was a costly mistake, with lousy results despite paying a lot. Pls beware of KKS-- is basically kukujiao or kanasai.... Vincent, however, was professional, patient, and genuinely helpful. He gave me sound advice and worked diligently to track down my unfaithful husband. The evidence and report provided were clear, credible, and exactly what I needed. I am truly thankful to have met Vincent. While I wish I had found him the first time to avoid unnecessary losses, I am still very grateful that he ultimately solved my case. I highly recommend Asia PI Firm to anyone seeking a trustworthy and competent private investigator.
Yiyi Lim
If you’re looking for a professional and reliable private investigator in Singapore, I highly recommend Vincent Tan based on my personal experience. I first engaged Vincent several years ago when I suspected my husband was having an affair overseas. He handled the case with discretion and professionalism, successfully gathering the evidence I needed. His work gave me clarity and helped me move forward with confidence during a very difficult time. More recently, I engaged Vincent again for a different matter, and once again, he delivered with the same level of professionalism and efficiency. His consistency, attention to detail, and commitment to his clients truly stand out. Having worked with him twice, I can confidently say that Vincent is trustworthy, capable, and dedicated to achieving results.
莫昌斌
I highly recommend Asia Top Investigation. Vincent and his team were incredibly professional, highly skillful, and dedicated in handling my case. Going through this was an immensely stressful period for me, but Vincent’s team provided constant support and guidance throughout the entire process. Thanks to their impeccable work, I was able to secure the leverage needed to resolve my situation definitively. Upon seeing the evidence, the other party finally acknowledged the affair they had previously denied. This outcome led to a signed settlement covering all legal expenses, ongoing support, and the finalization of the necessary documentation. If you need a private investigation agency that delivers results with absolute professionalism, discretion, and genuine empathy, Asia Top Investigation is the best choice. Thank you very much, Vincent and team.
Joy
Previously I have engaged a PI company but their service not professional, unethical and provide subpar report. Then I was introduced ATI through a friend and decided to engage them. Vincent and Team is professional, experienced, meticulous and I am impressed by the result. I would also like to shout out to Vincent for his patient, understanding and giving me personal advise to think through on my decision. Would highly recommend ATI.
Private Investigator, Vincent Tan
Founder & Partner of Asia Top Investigation LLP
Leading Singapore Private Investigator with Over 10,000 Cases Solved
Vincent Tan is a highly respected Singapore Private Investigator who has handled more than 10,000 investigation cases since 1990. With over three decades of experience, he is widely recognized for his expertise in conducting complex and sensitive Private Investigator work, particularly in matrimonial investigations.
In 2012, he was honoured with the title of Asia Top Investigator by the American Biographical Institute, further cementing his reputation in the field. Vincent’s specialization in matrimonial investigations has helped countless clients uncover the truth and regain peace of mind. Over his 25+ year career, he has successfully resolved thousands of cases, including several high-profile investigations in Singapore.
Currently, Ivan Tan, Operations Manager, is assisting Vincent in managing Asia Top Investigation. Ivan holds a Bachelor's Degree In Business and is Certified in Cybersecurity by NUS.
Featured on Mediacorp Channel 8: 星期二特写 on
30 December 2025
*This video is a reenactment. No actual investigative equipment is used due to confidentiality and trade-secret protections.
