Windows 10 Enterprise is nearly identical to Pro in terms of feature set and functionality. It targets medium to large businesses, and Enterprise can only be distributed through Microsoft's Volume Licensing program. The OS actually requires a base-installation of Pro, as well.
That being said, Enterprise does have several additions that Pro does not offer. The shining difference would be DirectAccess, which allows remote users to access an internal network over a VPN-like system that instantly establishes a bi-directional connection when connected to the internet. Enterprise also has AppLocker, which allows administrators to restrict access to certain apps on any number of devices, essential for any company with a mobile workforce.
Several features build on to the security set in Enterprise. Managed User Experience lets you manage everything connection settings to user accounts, and MicrosoftApplication Virtualization manages app virtualization and streaming, while MicrosoftUser Environment Virtualization provides virtual device migration using the same OS settings.
Windows 10 Enterprise Key