While Vagrant ships out of the box with support for VirtualBox, Vagrant has the ability to manage other types of machines as well. This is done by using other providers with Vagrant.
Alternate providers can offer different features that make more sense in your use case. For example, if you're using Vagrant for any real work, VMware providers are recommended since they're well supported and generally more stable and performant than VirtualBox.
Before you can use another provider, you must install it. Vagrant only ships with VirtualBox support. Installation of other providers is done via the Vagrant plugin system.
Once the provider is installed, usage is straightforward and simple, as you would expect with Vagrant. Read into the relevant subsections found in the navigation to the left for more information.