Dropbox Enterprise is the next tear for Dropbox aimed to support large businesses. It will include all the tools from Business tier and in addition giving better backend management capabilities with "deployment tools, advanced controls, and services and support "
Enterprise features breakdown:
"Scalable deployment tools. Many companies already have strong Dropbox adoption from employees using personal accounts. With domain verification and account capture, admins can accelerate user migration to enterprise accounts in a few clicks.
•Increased visibility and control. With domain insights, admins gain visibility into any personal Dropbox usage taking place on their company domain. Additionally our new collaboration insights feature lets admins easily monitor how employees are using Dropbox with external collaborators.
•Enterprise-grade services and support. Customers have unlimited access to the Dropbox API to seamlessly integrate Dropbox with existing IT systems, plus access to our platform team for support on custom integrations. We’re also providing customers with an assigned customer manager and world-class services for help with deployment, data migration, and user training." https://blogs.dropbox.com/business/2015/11/introducing-dropbox-enterprise/