&quot;data center&quot; is a confusing term.<p>Very few companies build their &quot;data centers&quot; (apple, google, amazon, NSA, actual &#x27;data center&#x27; companies, etc).  Most companies rent cage space in a larger data center and call that their &quot;private data center.&quot;  Smaller companies will rent a few dedicated servers or colo half racks from other resellers.