Enterprise Cloud Migration Consulting
EPC Group has completed 6,500+ cloud migrations for organizations ranging from 50 to 100,000+ users. Our migration methodology ensures zero data loss, minimal downtime, and full compliance with HIPAA, SOC 2, FedRAMP, and other regulatory frameworks.
Whether you're migrating from on-premises Exchange, consolidating tenants after an acquisition, or moving your entire data center to Azure, our team has the expertise to deliver a successful migration on time and on budget. For SharePoint-specific migrations, read our SharePoint Migration Guide 2026 covering assessment, data mapping, and post-migration optimization.
Cloud Migration Services
End-to-end migration services for every Microsoft cloud workload.
Azure Cloud Migration
Migrate on-premises infrastructure, applications, and databases to Microsoft Azure. IaaS, PaaS, and SaaS solutions.
- VM and server migration
- SQL database migration
- Application modernization
- Azure AD integration
Exchange to Microsoft 365
Migrate from on-premises Exchange Server to Exchange Online with zero downtime and full coexistence.
- Hybrid Exchange deployment
- Cutover & staged migration
- Public folder migration
- Email security setup
SharePoint Migration
Migrate SharePoint on-premises to SharePoint Online with metadata preservation and permission mapping.
- Content & metadata migration
- Permission mapping
- Custom solution migration
- Hub site architecture
Tenant-to-Tenant Migration
Consolidate multiple Microsoft 365 tenants for mergers, acquisitions, and organizational restructuring.
- Multi-tenant consolidation
- M&A IT integration
- Domain transfer
- Identity federation
Google Workspace to M365
Complete migration from Google Workspace (Gmail, Drive, Calendar) to Microsoft 365.
- Gmail to Exchange Online
- Drive to OneDrive/SharePoint
- Calendar & contacts
- Classroom to Teams
Hybrid Cloud Strategy
Design and implement hybrid cloud environments with seamless on-premises and cloud integration.
- Azure Stack HCI
- Hybrid identity (Azure AD)
- ExpressRoute connectivity
- Disaster recovery
Our Migration Process
A proven 5-phase methodology refined over 11,000+ enterprise migrations.
Assessment
Inventory, risk analysis, and migration strategy development
Planning
Detailed runbook, scheduling, and stakeholder communication
Pilot
Test migration with IT staff and power users to validate approach
Migration
Phased production migration with real-time monitoring and support
Optimization
Post-migration validation, security hardening, and user training
Compliance-First Cloud Migration
Every migration we execute maintains full compliance with your regulatory requirements. Chain-of-custody documentation, encrypted transfers, and audit trails at every phase.
Why EPC Group?
- Microsoft Gold Partner29 years of Microsoft ecosystem expertise
- 6,500+ SharePoint ImplementationsZero data loss track record across all engagements
- Fortune 500 ClientsEnterprise-scale migrations up to 100,000+ users
- Compliance ExpertiseHIPAA, SOC 2, FedRAMP, GDPR, FINRA certified
Frequently Asked Questions
How long does an enterprise cloud migration take?
Enterprise cloud migration timelines vary: small organizations (under 100 users) take 2-4 weeks, mid-sized (100-500 users) take 4-8 weeks, and large enterprises (500+ users) typically take 3-6 months. EPC Group uses phased migration approaches with minimal-disruption cutover to minimize business disruption.
What cloud platforms does EPC Group migrate to?
EPC Group specializes in Microsoft Azure, Microsoft 365 (Exchange Online, SharePoint Online, OneDrive, Teams), and hybrid cloud environments. We also handle migrations from AWS and Google Cloud Platform to Azure, tenant-to-tenant consolidations, and on-premises to cloud transitions.
How do you ensure zero data loss during migration?
We use a multi-phase approach: pre-migration assessment and inventory, parallel sync during migration (delta sync), validation checksums on every migrated item, and post-migration auditing. Our 6,500+ migration track record maintains a 99.99% data integrity rate with zero data loss across all enterprise engagements.
Can you migrate while maintaining compliance (HIPAA, SOC 2, FedRAMP)?
Yes. EPC Group has deep expertise in compliance-regulated migrations. We maintain chain-of-custody documentation, encrypted data transfers, audit trails, and compliance validation at every phase. We have completed migrations for healthcare (HIPAA), financial services (SOC 2), and government (FedRAMP) organizations.
What is the cost of enterprise cloud migration?
Cloud migration costs depend on scope: small business migrations start at $15K, mid-sized organizations range from $50K-$150K, and large enterprises with complex hybrid environments cost $200K-$500K+. EPC Group provides fixed-price quotes after a discovery assessment. Our pricing includes project management, migration execution, testing, and post-migration support.
Ready to Migrate to the Cloud?
Get a free migration assessment from our team of certified Microsoft cloud experts.
Related Resources
Azure Landing Zone Architecture Guide
Design enterprise Azure landing zones with governance, security, and compliance foundations for large-scale cloud migrations.
Azure Cost Optimization Guide
Reduce Azure spend by 30-40% with reserved instances, right-sizing, and governance policies for enterprise environments.
SharePoint Online Migration Guide 2026
Complete guide to migrating on-premises SharePoint to SharePoint Online with zero downtime strategies.
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Cloud Migration Consulting Services
EPC Group has completed 6,500+ migrations to Azure, Microsoft 365, Exchange Online, SharePoint Online, and hybrid cloud. Zero data loss guarantee. Migration costs start at $15,000 for small organizations and scale to $500,000+ for large enterprises. Timelines range from 2 weeks to 6 months depending on scope and compliance requirements.
Key facts
- 6,500+ migrations completed. Zero data loss guarantee.
- Small organizations (under 100 users): 2–4 weeks, starting at $15,000.
- Mid-sized organizations (100–500 users): 4–8 weeks, $50,000–$150,000.
- Large enterprises (500+ users, hybrid environments): 3–6 months, $200,000–$500,000+.
- Compliance configurations available: HIPAA, SOC 2, FedRAMP, CMMC.
- EPC Group holds all six Microsoft Solutions Partner designations and 29 years of Microsoft consulting experience.
Cloud migration services
- Azure migration — IaaS lift-and-shift, PaaS modernization, and database migrations to Azure SQL, Cosmos DB, and Azure PostgreSQL.
- Microsoft 365 migration — Google Workspace, on-premises Exchange, and Lotus Notes migrations to Microsoft 365.
- Exchange Online migration — on-premises Exchange 2010 through 2019 to Exchange Online. Hybrid configurations supported.
- SharePoint migration — SharePoint 2003 through 2019 to SharePoint Online. Permission preservation, managed metadata, and governance setup.
- Tenant-to-tenant migration — merger and acquisition scenarios. Cross-tenant mailbox, SharePoint, and Teams migrations.
- Hybrid cloud design — Azure Arc, Azure Stack HCI, and Entra ID hybrid identity configurations for organizations maintaining on-premises infrastructure.
Migration timelines
By organization size
- Small (under 100 users): 2–4 weeks.
- Mid-sized (100–500 users): 4–8 weeks.
- Large enterprise (500+ users): 3–6 months.
By migration type
- Azure IaaS lift-and-shift (< 50 VMs): 2–4 months.
- Azure mid-size with database modernization (50–200 VMs): 4–6 months.
- Azure large enterprise (> 200 VMs, multiple datacenters): 9–18 months.
- SharePoint migration (< 500 GB): 2–4 weeks.
- SharePoint migration (500 GB – 5 TB): 6–12 weeks.
- SharePoint migration (> 5 TB, multiple site collections): 3–6 months.
Migration costs
- Small business migration (under 100 users): Starting at $15,000.
- Mid-sized migration (100–500 users): $50,000–$150,000.
- Large enterprise migration (500+ users, hybrid): $200,000–$500,000+.
Compliance migrations
EPC Group configures compliance controls during the migration process — not as an afterthought. We add HIPAA, SOC 2, FedRAMP, and CMMC configurations during the tenant setup phase. This avoids costly remediation after go-live.
HIPAA-compliant migrations
- Sign Microsoft HIPAA BAA before migrating any PHI data.
- Apply sensitivity labels to all PHI content types during migration.
- Configure private endpoints for Azure services handling PHI.
- Set up 6-year audit log retention in Microsoft Purview.
FedRAMP / CMMC migrations
- Deploy to Microsoft GCC or GCC High for FedRAMP workloads.
- Configure CMMC Level 2/3 controls during environment setup.
- Produce System Security Plan (SSP) documentation during the migration project.
SharePoint migration tools (2026)
Tenant-to-tenant SharePoint migrations use three primary tools:
- Native Microsoft 365 migration tools: Free, but limited to in-place scenarios. Best for simple migrations.
- ShareGate: Best for permission preservation across hub-spoke architectures. Strong audit reporting.
- AvePoint Migrator: Enterprise scale with regulated-industry compliance reporting. Best for healthcare and government migrations.
Microsoft Purview and migration governance
Microsoft Purview sensitivity labels on SharePoint Online now auto-classify based on Microsoft 365 Copilot grounding hints. Container labels enforce sharing controls at the site level. Purview Content Explorer surfaces unauthorized PHI or PII exposure in real time — a critical post-migration check.
EPC Group runs a Purview governance sprint as part of every SharePoint migration to ensure all content is labeled before go-live.
Frequently asked questions
How much does cloud migration cost?
Small business migrations start at $15,000. Mid-sized migrations (100–500 users) cost $50,000–$150,000. Large enterprise migrations with complex hybrid environments cost $200,000–$500,000+. Compliance configurations (HIPAA, FedRAMP) add scope and cost — but are included in EPC Group's fixed-fee migration packages.
How long does a Microsoft 365 migration take?
Small organizations (under 100 users, under 1 TB) take 2–4 weeks. Mid-sized organizations (100–500 users) take 4–8 weeks. Large enterprises (over 500 users, multiple data sources) take 3–6 months with phased rollout.
Do you guarantee zero data loss?
Yes. EPC Group guarantees zero data loss on all migration projects. We run pre-migration audits, staged test migrations, and post-migration verification against the source inventory. Our 6,500+ migration track record reflects this commitment.
What is a tenant-to-tenant migration?
A tenant-to-tenant migration moves mailboxes, SharePoint sites, and Teams data from one Microsoft 365 tenant to another — common in mergers, acquisitions, and divestitures. EPC Group uses ShareGate and AvePoint Migrator for cross-tenant migrations, preserving permissions, timestamps, and content types.
Can you migrate to Microsoft 365 from Google Workspace?
Yes. EPC Group migrates organizations from Google Workspace (Gmail, Drive, Meet) to Microsoft 365. Small migrations (under 100 users, under 1 TB) take 2–4 weeks. Larger migrations include data mapping, user training, and a parallel-run period before cutover.
Schedule a consultation
EPC Group has completed 6,500+ migrations with zero data loss. Talk to a migration architect about your project. Call (888) 381-9725 or request a discovery call.