Directory synchronization and single sign-on
Need to maintain an on-premises Active Directory? Office 365 for enterprises supports the synchronization of directory objects (users, groups, contacts) to the cloud to help reduce administrative overhead. It also supports single sign-on (SSO) to provide users with a more seamless authentication experience as they access Office 365 services while logged on to the corporate network.
Hybrid deployments
When you deploy Office 365 for enterprises in a long-term state of coexistence with your on-premises enterprise infrastructure, it's called a hybrid deployment. A hybrid deployment may support an infrastructure where email, document sharing, instant messaging, and identity management are integrated from your existing organization into the cloud.
Security and compliance
When it comes to complying with regional regulatory and security requirements, every organization has different needs. Office 365 for enterprises is a highly customizable and secure platform that can help you meet your security and compliance needs, from archiving, journaling, and reporting to auditing and search capabilities.