There are more aspects of a dedicated server, you can control what happens on the server. You can share information only with the people you want to share it with. My wife is an accountant and she only shares her information with the people who work with her in the company. They share information with other divisions of the company through their secure server, but nobody else has access to their information.
There are many companies that offer dedicated servers. You want a company that is reliable and trusted worldwide for their service. If you have a Xeon Dedicated Server, you have a company that has all the advantages you need when you want a dedicated server for your company. My wife's company's concerns are security, reliability and the ability to control everything that happens on their server throughout the company. The most important factor was choosing the right company for their needs.
disclaimer: This is a sponsored post for Hivelocity, however, all the points and views are my own.