Microsoft 365 E3 is a mid-tier enterprise subscription that bundles desktop and web productivity applications, collaboration services, and a baseline set of identity, endpoint management, and security/compliance features into a single per-user license.
Published Oct 14, 2026
| Starting Price | Published per-user pricing available from the vendor (annual commitment options) | Enterprise pricing available by quote from the vendor | Published pricing varies by tier; generally positioned lower than large-enterprise Microsoft plans |
| Best For | Enterprises standardized on Microsoft Office file formats, Windows endpoints, and Microsoft identity/management | Google-centric, browser-first collaboration workflows; enterprises prioritizing Gmail/Drive-native experiences | Cost-sensitive organizations seeking basic email, docs, and chat with lower per-user cost |
| Key Strength | Integration across Office apps, Outlook/Exchange, SharePoint/OneDrive, and endpoint management | Real-time collaboration and a simple browser-first UX | Lower cost and flexible tiers for smaller organizations |
| Key Weakness | Licensing complexity and potential administrative overhead | Enterprise pricing often requires direct sales engagement; some workflow parity issues vs Microsoft Office | Less proven in very large enterprise procurement and RFP processes |
Where Microsoft 365 E3 tends to be selected:
Where competitors can be stronger: