If you're wondering whether your business website is on the Wordpress.com or Wordpress.org, follow these steps:
Step 1. Go to your website
Step 2. Add /wp-admin to your website domain - i.e. www.untappd.com/wp-admin
Step 3. Mouse over the WP logo and see if it says wordpress.org or wordpress.com at the bottom of your browser window.
Here is a more in depth explanation about the difference between Wordpress.org and Wordpress.com.