I am not a lawyer, but I think you have seen in the news cases of people who went to the police to report a robbery and these people were not of American nationality, so if you or anyone else was stolen by someone who lives in the USA or stolen by a company that is in the US, you can report the US police to solve your problem.
or make this case FBI?
I do not know what are the cases that the FBI has jurisdiction to investigate something, this is something that you should consult a lawyer