Trello Enterprise grants you access to all of the features and functionality of Trello Premium, as well as:
Front-of-the-line Priority Support
Multiple upgraded Workspaces under one Enterprise, and the ability to share boards across them
Scheduled phone support via Zoom
User management dashboard for Enterprise Admins
Unlimited Automation quota
Enterprise User Guide
For our most up-to-date Trello Enterprise User Guide, please go here. This includes info for Workspace admins, sysadmins, and end users about Enterprise features and how-to's.