There is no database of Tinder users other than the one owned by Tinder itself. That means that anyone trying to find out if someone has a Tinder profile must rely on services offered by independent online companies such as Albion Services, Buzz Humble, and Global Max Search to manually search through thousands of profiles looking for the individual in question. This can be a long and tedious process spanning many hours if not days. It is entirely possible for someone to attempt this on their own however, it may be a tremendous undertaking for one person.
Global Max Search has a team of highly trained investigative specialists who pride themselves in their ability to analyze every profile image they come across to determine whether or not they are a match to the photos provided by the customer. The investigative specialists compare names to exact matches as well as other versions of the name, different spellings, nicknames, and aliases. Additionally, they examine each individual face and compare them to the photos uploaded by the customer.