Migrate to Exchange Online with Confidence
EPC Group has successfully migrated 3.7 million+ mailboxes from on-premises Exchange to Microsoft 365, as well as tenant-to-tenant Exchange Online migrations across Microsoft 365 tenants, with zero data loss and minimal downtime.
Exchange Migration Services
We handle all types of Exchange migrations, from simple cutover migrations to complex hybrid deployments.
On-Premises to Cloud
Migrate from Exchange Server 2010/2013/2016/2019 to Exchange Online with staged or cutover approach.
- Zero downtime migration
- Data integrity verification
- Mailbox size optimization
- Archive migration
Hybrid Exchange
Maintain coexistence between on-premises Exchange and Exchange Online during transition.
- Seamless coexistence
- Free/busy calendar sharing
- Unified GAL
- Phased user migration
Tenant-to-Tenant Migration
Consolidate mailboxes during mergers, acquisitions, or organizational restructuring.
- Cross-tenant migration
- Mailbox mapping
- Permission preservation
- Archive consolidation
Why Choose EPC Group for Exchange Migration?
28+ years of Microsoft ecosystem expertise, with specialized focus on enterprise Exchange deployments.
Zero Data Loss Guarantee
Our migration process includes multiple verification checkpoints to ensure 100% data integrity.
Minimal Downtime
Strategic migration windows and hybrid coexistence minimize impact on business operations.
Compliance-First Approach
HIPAA, SOC 2, and FedRAMP-ready migrations with full audit trails and documentation.
Expert Project Management
Dedicated project manager, technical lead, and 24/7 support throughout migration lifecycle.
Our Proven Migration Process
A structured, 5-phase approach that has successfully migrated over 10,000 mailboxes.
Discovery & Assessment
Inventory current Exchange environment, mailbox sizes, public folders, and custom configurations. Identify migration blockers and optimization opportunities.
Planning & Design
Create detailed migration plan, timeline, and rollback procedures. Design hybrid architecture if needed. Obtain stakeholder sign-off.
Pilot Migration
Migrate small test group (10-20 users) to validate process, identify issues, and refine procedures before full rollout.
Batch Migration
Execute phased migration in scheduled maintenance windows. Monitor progress in real-time. Verify data integrity at each checkpoint.
Post-Migration Support
User training, issue resolution, decommissioning of legacy infrastructure. 30-day hypercare support included.
Ready to Migrate Your Exchange Environment?
Schedule a free migration assessment. We'll analyze your current environment and provide a detailed migration roadmap with cost estimates.