Asia Top Investigation's founder Vincent Tan has been conducting investigations since the 1990s. He is an expert in handling infidelity and background cases. Some of his high-profile cases were reported in the local papers.  ​ Using OSINT, Ground intelligence, and the latest available technology to gather evidence of a subject is his specialty. His partner Steven is Highly trained in Covert Surveillance. He has trained more than 100 private investigators in the art of surveillance over the past 25 years. ​ ATI is also highly recommended for Matrimonial Cases in Singapore, Malaysia, Thailand, China, Taiwan, Indonesia, Philippines, Vietnam, Hongkong, and Macau.