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TRUTH VERIFIER SYSTEMS, INC. (TVSI) is a private detective agency in the Philippines noted for its exemplary services expertise, integrity and truthful reporting.
The TRUTH VERIFIER SYSTEMS, INC. (TVSI) was founded in May 1966 as the first Private Investigator Agency and lie detector company to provide advanced Lie Detector Test services in the Philippines. It was a business partnership between CWO Chandler F. Williams, Capt. Conrado G. Dumlao and Dr. Alcyone Thor Reyes. In 1973, the company was incorporated.
It is the Philippines’ first and leading licensed private detective and lie detector company is noted for its exemplary service, expertise, integrity and truthful reporting. Founded in May 1966, TVSI has given quality service for 50 years.
The company is duly licensed by the Philippine National Police (PNP) with License No.: PDA-001. Its professionalism and dedication to quality service made the company topped among other emerging detective agencies. To date, TVSI is the only private investigator agency named by the Philippine National Police as the “Hall of Fame Best Private Detective Agency” for being the most consistent awardee in the years 1999, 2006, 2007 and 2008. The company is also the first company to be certified by the International Standardization Organization (ISO) as a Private Detective Agency for Lie Detector Testing, Detective and Investigative Services and Training.
TVSI caters detective and lie detector services all over the country. It specializes in Background Investigation, Fraud Investigation, Surveillance & Undercover, Locating Persons or Properties, Record Checking, Lifestyle Checking and Evidence Gathering. The company guarantees secrecy and compartmentalization.
Its main office is located at 2/F Cityland Bldg., 128 Pioneer St., Mandaluyong City, with telephone numbers (02) 634-7571 and (02) 634-7573.Company Profile