Microsoft 365 Business Premium is the most powerful Microsoft 365 plan for businesses with up to 300 users. It combines everything in Business Standard with enterprise-grade security features — Microsoft Defender for Business, Intune device management, Azure AD Premium P1, and Microsoft Purview Information Protection — making it the go-to choice for businesses in regulated industries or with heightened security needs.
What’s Included
- Everything in Microsoft 365 Business Standard — Full Office desktop apps, Exchange, Teams, SharePoint, OneDrive, webinars, and productivity tools.
- Microsoft Defender for Business — Enterprise-grade endpoint security: next-gen antivirus, endpoint detection & response (EDR), threat & vulnerability management, automated investigation and remediation for Windows, macOS, iOS, and Android.
- Microsoft Intune — Mobile device management (MDM) and mobile application management (MAM). Enforce security policies, configure devices remotely, and wipe lost or stolen devices — including BYOD scenarios.
- Azure AD Premium P1 (Microsoft Entra ID P1) — Conditional Access policies (block sign-ins from risky locations or devices), group-based access management, self-service password reset, and hybrid identity support.
- Microsoft Purview Information Protection — Apply sensitivity labels to documents and emails (e.g., Confidential, Internal Only) and enforce data loss prevention policies to prevent accidental data leakage.
- Azure Information Protection P1 — Classify and protect documents even when shared outside your organisation.
- Defender for Office 365 Plan 1 — Safe Links and Safe Attachments protect users from phishing links and malicious email attachments in real time.
Storage & Limits
- OneDrive: 1 TB per user
- Exchange mailbox: 50 GB per user
- Office installs: 5 PCs/Macs + 5 phones + 5 tablets per user
- Maximum users: 300
Ideal For
Businesses in finance, legal, healthcare, or any sector where data security and compliance matter. Also ideal for any business that has experienced a security incident or wants to proactively protect against ransomware, phishing, and device loss. If you are serious about security, Business Premium is the right choice at the SMB level.
Keys Locker CSP Guarantee
- Genuine Microsoft CSP licence — provisioned directly through the official Microsoft partner channel
- 99.9% uptime SLA — Microsoft-backed service level agreement for all Microsoft 365 services
- Instant provisioning — subscription activated within minutes of payment confirming
- 7-day money-back guarantee — full refund if not provisioned or unused within 7 days
- Flexible cancellation — cancel monthly plans anytime; annual plans cancel at end of term
- 24/7 partner support — our team escalates issues directly to Microsoft on your behalf
- Scale up or down anytime — add or remove seats mid-cycle with no penalty

