Some business owners make the mistake of not checking to ensure whoever registers their domain name does so under the business owner's name. It's very important to be sure you are the domain owner and administrative contact.
It's an obvious, yet common, mistake made by business owners to let a web designer register your domain. If that company goes away or your not using them anymore, there is a chance down the road that you can't get in contact with them and they will be the primary owner of your domain name.