Society/People/Missing_People/Locator_Services are commercial services and private researchers that provide professional assistance, usually for a fee, to aid in locating missing people.
Records search firms and people locator services have different levels of expertise and may use different resources than law enforcement agencies and licensed private investigators who are categorized elsewhere.
Commercial locator of people, personal records, and contact information in the United States. Includes price list. http://www.angelfire.com/va3/search/
Fee-based service for private investigators and others involved in the business of finding missing people and running criminal background checks in the USA. http://www.peoplesearch.com/
Probate and genealogy for the legal profession, locating missing heirs. Testimonials and evidentiary documents included. http://www.gvwaitsinvestigations.com/
Probate and title researchers offering missing heirs and beneficiaries tracing service to primarily the legal profession. Based in York, UK. http://www.dallen99.fsnet.co.uk/
Specialists in missing children, elderly and pornographic location from emails. Corporate, personal and home security products available. http://sfiu.tripod.com/sec/
Online private investigation and background check tool for locating or obtaining information on a specific individual. http://www.the-net-detective.com