Microsoft Office 365 for Business

Office 365 Business Essentials Office 365 Business Office 365 Business Premium Office 365 ProPlus Office 365 Enterprise E1 Office 365 Enterprise E3 Office 365 Enterprise E4 Office 365 Enterprise E5
User maximum 300 300 300 Unlimited Unlimited Unlimited Unlimited Unlimited
Fully installed Office applications Word, Excel, PowerPoint, Outlook, Publisher, and OneNote on up to 5 PCs or Macs
Office on tablets and phones for the fully installed Office experience on up to 5 tablets and 5 phones
Online versions of Office including Word, Excel and PowerPoint
File storage and sharing with 1 TB storage per user
Business class email, calendar, and contacts with a 50 GB inbox per user
Unlimited online meetings, IM, and audio, HD video, and web conferencing
Intranet site for your teams with customizable security settings
Corporate social network to help employees collaborate across departments and locations
Work management tools to help teams create plans, organize, assign and collaborate around tasks
Cloud PBX for cloud-based call management to make, receive, and transfer calls across a wide range of devices
Advanced Security Management and Analytics tools