Microsoft
Office 365 Enterprise
The core suite of Office applications and enterprise cloud services.
Product
Office 365 Enterprise
VendorMicrosoft
Product Details
Office 365 E5
Everything included in Office 365 E3.
- Everything included in Office 365 E3
- Foundational security, identity, and least privileged access management
- Cloud-based phone system with Microsoft Teams Phone
- Scalable business analytics with Power BI
- Email phishing and ransomware protection
- Data security and compliance for higher data risk and regulations
Included Apps & Services
Word
Excel
PowerPoint
OneNote
Microsoft Loop
Clipchamp
Outlook
Exchange
Teams
OneDrive
SharePoint
Purview
Power BI Pro
DefenderOffice 365 E3
Everything included in Office 365 E1.
- Everything included in Office 365 E1
- Desktop, web, and mobile versions of Word, Excel, PowerPoint, Outlook, and other apps
- 1 to 5+ TB of cloud storage per user
- Intelligent detection and control of sensitive information
Included Apps & Services
WordExcelPowerPointOneNoteMicrosoft LoopClipchampOutlookExchangeTeamsOneDriveSharePointPurviewOffice 365 E1
Available for unlimited users.
- Available for unlimited users
- Web and mobile versions of Word, Excel, PowerPoint, and Outlook
- Chat, call, and video conference with Microsoft Teams
- 1 TB of cloud storage per user
- 10+ enterprise apps including Microsoft Planner, Forms, To Do, and Lists
- AI chat experience with web grounding, writing assistance, data analysis, and access to agents
- Anytime phone and web support
Included Apps & Services
Word web and mobileExcel web and mobilePowerPoint web and mobileOneNote web and mobileMicrosoft LoopOutlook web and mobileExchangeTeamsOneDriveSharePointQuick Comparison
| Feature Category | Office 365 E1 | Office 365 E3 | Office 365 E5 |
|---|---|---|---|
| Desktop Office Apps | — | ||
| Web & Mobile Apps | |||
| Exchange, Teams, SharePoint, OneDrive | |||
| Mailbox Storage | 50 GB | 100 GB | 100 GB |
| DLP & Message Encryption | — | ||
| Advanced Email Security (Defender P2) | — | — | |
| Power BI Pro | — | — | |
| Teams Phone System | — | — | |
| Audio Conferencing | — | — | — |
| Advanced Compliance (eDiscovery, Audit) | — | — | |
| Windows / Intune / Entra ID | — | — | — |
Key Capabilities
Desktop and web Office apps
Unlimited users support
Enterprise email and calendar
10+ enterprise apps included
Foundational security features
Best Fit For
Enterprises focused on core apps
Organizations with existing security stacks
Large-scale deployments
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