I've just submitted an update which includes company and country verification (both optional). It allows you to enter a list of "spam" company names, as well as a list of "allowed" countries. If you're based in the US and someone is creating an account with "Algeria" as their country, chances are it's a fake account - you can now define a list of allowed countries (usually just a few), and all other countries will need to verify their email before being able to register.

Until approved, the plugin can be downloaded from my website.