Whats the best way to approach clients?

Hi there

I've just finished my first polished course using Articulate Storyline.  It's an Anti-Bribery and Corruption online course.  

What is the best way to approach corporations in an attempt to get them to purchase your eLearning course?  

I have numerous options going on in my head, but what I really want to know is what is the best way to approach a company and what should I say to grab their attention and not sound like a typical cold caller?

Your help, will most certainly be appreciated because I'm used to sitting behind a desk and not trying to get business.

Thanks, 
Kerry