this supposed company wants me to email a pic of a check of mine with my signiture in order to recieve a loan

Well, We might have asked your check to verify your bank account details. to make sure we deposit the loan in right account.

Or, you might want the routing numbers on the check, so you could attempt to withdraw money.

How about telling us the name of your company, along with its legal address, website and BBB page, so we can check [pun intended] on its validity?