Customer Success Stories

Challenge

Global Financial Services Corp needed to merge two SharePoint tenants following a major acquisition. The migration involved 15 TB of highly sensitive financial data, 25,000 user mailboxes, and strict compliance requirements including SOC 2, FINRA, and GDPR.

Key challenges included:

• Zero tolerance for data loss or security breaches
• Complex permission structures across 500+ SharePoint sites
• Minimal downtime requirement (less than 4 hours)
• Regulatory compliance and audit trail requirements
• Integration with existing identity management systems

Solution

MigroStack implemented a phased migration approach using delta sync technology to ensure zero downtime. The solution included:

• Pre-migration validation: Automated scanning identified and resolved 1,200+ potential issues before migration
• Intelligent user mapping: AI-powered matching automatically mapped 98% of users between tenants
• Incremental migration: Delta sync kept data synchronized while users continued working
• Security compliance: Bank-level AES-256 encryption with complete audit logs
• Dedicated support: 24/7 migration engineer on standby throughout the project

Results

The migration was completed 3 days ahead of schedule with exceptional results:

• ✓ 15 TB of data migrated in 48 hours
• ✓ 99.97% success rate (only 43 items required manual intervention)
• ✓ Zero security incidents or data breaches
• ✓ $2.3M saved compared to competitor quotes
• ✓ 100% compliance with regulatory requirements
• ✓ All 25,000 users productive on day one

Challenge

MediCare Health Systems needed to migrate from on-premises SharePoint 2016 to SharePoint Online while maintaining HIPAA compliance and ensuring zero downtime for critical patient care systems.

Critical requirements:

• Migration of 8.5 TB of protected health information (PHI)
• HIPAA Business Associate Agreement (BAA) required
• 24/7 availability for emergency department access
• Migration from 45 different locations with varying network speeds
• Integration with existing Epic EMR system

Solution

MigroStack deployed remote agents at all 45 locations with HIPAA-compliant encryption:

• Remote agents: Installed at each location to optimize bandwidth usage and ensure security
• Encryption: End-to-end encryption for all PHI during transfer
• Delta sync: Continuous synchronization to eliminate downtime
• Compliance: Executed HIPAA BAA and maintained complete audit logs
• Validation: Automated integrity checks for all patient records

Results

• ✓ 8.5 TB of PHI migrated securely in 72 hours
• ✓ Zero downtime for clinical operations
• ✓ 100% HIPAA compliance maintained throughout
• ✓ All 45 locations successfully migrated
• ✓ Complete audit trail for regulatory review
• ✓ $850K annual savings on infrastructure costs

Challenge

Fast-growing SaaS startup needed to migrate from Google Workspace to Microsoft 365 after being acquired by a larger enterprise organization. The migration had to happen quickly during a weekend window.

Key requirements:

• Migrate Gmail to Exchange Online for 450 users
• Transfer Google Drive to OneDrive and SharePoint
• Maintain access to Slack until Teams migration complete
• Complete migration in 48-hour window
• Minimal business disruption (startup operates 24/7)

Solution

MigroStack executed a rapid weekend migration with parallel processing:

• Parallel migration: Simultaneous Gmail and Google Drive migrations
• Auto user mapping: Intelligent mapping based on email addresses
• Label conversion: Gmail labels automatically converted to Outlook folders
• Pre-configured Outlook: All users had Outlook pre-configured for Monday morning
• Training materials: Custom guides for Microsoft 365 transition

Results

• ✓ Complete migration finished in 24 hours (50% faster than planned)
• ✓ All 450 users productive Monday morning
• ✓ 89% cost savings vs MigrationWiz quote
• ✓ Zero data loss across 2 TB of content
• ✓ 97% user satisfaction score
• ✓ Seamless integration with parent company systems

Challenge

Global manufacturer needed to migrate decades of engineering files and CAD drawings from aging on-premises file servers to SharePoint Online across 32 countries with varying network infrastructure.

Complex requirements:

• 45 TB of legacy files dating back to 1995
• 120 different file servers across global locations
• Limited WAN bandwidth in developing regions
• Preservation of complex NTFS permissions
• Large CAD files (some over 5 GB)
• 24/7 manufacturing operations requiring constant file access

Solution

MigroStack deployed 120 remote agents globally with intelligent bandwidth management:

• 120 remote agents: One agent per file server location
• Bandwidth throttling: Automatic adjustment based on business hours
• Large file handling: Special chunking for CAD files over 1 GB
• Permission mapping: NTFS ACLs mapped to SharePoint permissions
• Staged migration: Region-by-region rollout over 14 days
• Local support: 24/7 support in multiple languages

Results

• ✓ 45 TB successfully migrated from 120 file servers
• ✓ 99.94% success rate across all locations
• ✓ Zero production downtime
• ✓ All NTFS permissions preserved
• ✓ $1.8M annual savings on file server maintenance
• ✓ Improved collaboration between global teams
• ✓ CAD files accessible from anywhere via OneDrive sync