Finding what contacts at a company there have been communications with?

Finding what contacts at a company there have been communications with?

I'm sure I've asked this before without a response, but I am going to try again.  I have a company that has close to 100 contacts associated with it.  I know that there has been some communication with one of the people at the company, most likely recorded by an email that has been attached to the contact record.  I have no idea which contact we've been communicating with.  How do I find the contact without having to open each contact record individually?