Business plans

There are three levels on the Business side. Each includes integration for Active Directory, a 99.9% uptime guarantee, IT-level online support, and 24/7 support for critical issues by phone, as well as superior data security. The following is a breakdown of each Business subscription:

 

These plans can cover a maximum of 300 users. You can see more details here: https://products.office.com/en-US/compare-all-microsoft-office-products?&activetab=tab:primaryr2.