12 Best Enterprise SharePoint Migration Services in 2026: Tested by 5,200+ Implementations
An expert-ranked guide to the top SharePoint migration services, based on 28 years of hands-on migration experience. Compare migration types, compliance capabilities, data volume capacity, and post-migration support.
Errin O'Connor
Chief AI Architect & CEO, EPC Group • 4x Microsoft Press Author • Original SharePoint Beta Team
Last Updated: March 25, 2026
The best enterprise SharePoint migration services in 2026 are EPC Group, AvePoint, Avanade, Catapult Systems, and ShareGate (by Workleap). EPC Group leads with 5,200+ implementations since the original SharePoint beta (Project Tahoe), specializing in compliance-governed migrations for HIPAA, SOC 2, and FedRAMP environments. For enterprise migrations, choose a partner with proven large-scale experience, zero-data-loss guarantees, and post-migration governance frameworks — not just a tool license.
I was on the original SharePoint beta team at Microsoft — back when it was called Project Tahoe. I've watched every version ship since, and I've migrated organizations through every one of those transitions. 5,200+ implementations later, I can tell you exactly what makes the difference between a migration that goes live on time and one that turns into a six-month nightmare.
The #1 mistake I see in SharePoint migrations? Treating it like a file copy. It's not. It's a governance transformation, a permission restructuring, and a user adoption challenge wrapped in a technical project. The content move is the easy part. The hard part is making sure your 15,000 users can find what they need on Monday morning after cutover, that your compliance posture didn't degrade during the move, and that the custom workflows your operations team depends on actually work in the new environment.
I've evaluated every major SharePoint migration service provider in the market against the same criteria we use internally at EPC Group: implementation volume, migration tool expertise, compliance capability during the migration itself (not just before and after), post-migration governance, and pricing transparency. This ranking is based on real-world results across thousands of enterprise environments, not vendor marketing claims.
Top 12 SharePoint Migration Services at a Glance
| Rank | Firm | Migration Types | Compliance During Migration | Data Volume Capacity | Post-Migration Support |
|---|---|---|---|---|---|
| #1 | EPC Group | On-Prem to Online, Hybrid, Tenant-to-Tenant | Full HIPAA, SOC 2, FedRAMP, CMMC chain-of-custody with zero-downtime cutover... | 500TB+ proven | 24/7 managed services, governance framework deployment, 90-d... |
| #2 | AvePoint | On-Prem to Online, Tenant-to-Tenant, File Share to SPO | Built-in compliance scanning, sensitivity label preservation, DLP policy mapping... | 200TB+ with FLY migration platform | Cloud management platform, backup, and governance tools (sep... |
| #3 | Avanade | On-Prem to Online, Hybrid, Tenant-to-Tenant | Enterprise compliance frameworks, global data residency management... | 1PB+ across distributed global migrations | Managed services, Center of Excellence setup, global support... |
| #4 | Catapult Systems | On-Prem to Online, Hybrid, File Share to SPO | Government and education compliance expertise, ITAR support... | 100TB+ with phased migration approach | Managed services, SharePoint administration, user adoption p... |
| #5 | ShareGate (by Workleap) | On-Prem to Online, Tenant-to-Tenant, File Share to SPO | Permission reporting, metadata preservation, pre-migration audit tools... | 50TB+ | ShareGate management platform for ongoing governance (separa... |
| #6 | Binary Stream | On-Prem to Online, Hybrid, Business Process Migration | Financial services compliance, audit trail preservation during migration... | 50TB+ with business process validation | Business process optimization, workflow modernization to Pow... |
| #7 | KWizCom | On-Prem to Online, Custom Solution Migration, InfoPath to Power Apps | Custom solution compatibility assessment, functionality preservation validation... | 25TB+ | Custom solution maintenance, modern replacement development... |
| #8 | Perficient | On-Prem to Online, Hybrid, Custom Development | Healthcare and financial services compliance, HITRUST certification support... | 200TB+ with enterprise delivery model | Managed services, custom development, integration maintenanc... |
| #9 | HCLTech | On-Prem to Online, Tenant-to-Tenant, Multi-Tenant Consolidation | Global data residency, GDPR, multi-jurisdiction compliance management... | 1PB+ across distributed global environments | Global managed services, 24/7 NOC, multi-language support... |
| #10 | Netwoven | On-Prem to Online, Intranet Migration, Classic to Modern | Information architecture validation, content governance during migration... | 100TB+ with content restructuring | Intranet management, content governance, user adoption... |
| #11 | Bamboo Solutions | Workflow Migration, SharePoint Designer to Power Automate, Nintex to Power Automate | Workflow audit and compliance mapping, process documentation... | 25TB+ | Power Automate optimization, workflow monitoring, process im... |
| #12 | Slalom | On-Prem to Online, Digital Workplace, Change Management | Change management frameworks, stakeholder communication plans... | 100TB+ with phased adoption approach | Change management, user adoption, training programs, champio... |
Our Ranking Methodology
Rankings are based on 5 criteria weighted by their impact on enterprise migration success. These weights reflect what actually matters in the field after 5,200+ implementations — not what looks good in a vendor pitch.
SharePoint Migration Checklist
Bookmark this. Every successful enterprise SharePoint migration follows these phases.
1Pre-Migration Discovery (Weeks 1-3)
2Architecture & Governance Planning (Weeks 3-6)
3Pilot Migration (Weeks 6-8)
4Migration Waves (Weeks 8-16+)
5Post-Migration Hypercare (Weeks 16-28)
Why SharePoint Migration Is Not a File Copy
I've had this conversation hundreds of times with CTOs who ask, "Can't we just use robocopy?" Here's what they're actually migrating and don't realize it:
What They Think They're Migrating
- x Files and folders
- x A few SharePoint sites
- x Some documents
What They're Actually Migrating
- + Permission inheritance chains across thousands of objects
- + Managed metadata and content type hierarchies
- + Custom workflows driving business operations
- + Version history (often legally required)
- + Compliance labels and retention policies
- + User behavior patterns and search relevance
- + Integration points with LOB applications
A 10,000-user on-prem to Online migration typically takes 4-8 months. Anyone promising 6 weeks is either cutting corners or doesn't understand your environment. I've been called in to rescue more "quick migrations" that went sideways than I can count. The common thread: they treated SharePoint like a file server with a web frontend. It's not. It's a platform, and you're migrating the entire platform — not just the content sitting on it.
SharePoint Migration Tools: What Actually Works at Enterprise Scale
After running migrations with every major tool on the market, here's the honest assessment. No single tool handles everything. Enterprise migrations use a combination.
SharePoint Migration Tool (SPMT) & Migration Manager
Best for: Bulk content migration from on-premises file shares and SharePoint Server to SharePoint Online. Free from Microsoft.
Limitations: Limited scheduling, basic reporting, no pre-migration assessment, cannot migrate workflows or custom solutions. We use it for the heavy lifting of content but supplement with custom PowerShell for permission validation and third-party tools for pre-migration analysis.
ShareGate (Workleap)
Best for: Pre-migration assessment, permission reporting, and migrations where IT teams want hands-on control. Excellent UI.
Limitations: Desktop application requires local installation, throughput limited by client machine, licensing scales with data volume. Best for mid-market or as a supplementary assessment tool for enterprise.
AvePoint FLY
Best for: Tenant-to-tenant migrations, M&A consolidation, and cloud-to-cloud moves. Strong compliance scanning.
Limitations: Enterprise licensing cost is significant, learning curve for the platform, overkill for simple on-prem to online moves. Ideal for complex multi-tenant scenarios.
Custom PowerShell + PnP Migration
Best for: Permission remediation, metadata cleanup, validation scripting, and handling edge cases no GUI tool covers.
Reality: Every enterprise migration ends up needing custom PowerShell regardless of the primary tool. If your migration partner cannot write PnP PowerShell, they're not ready for enterprise SharePoint. At EPC Group, we maintain a library of 200+ migration scripts built across our 5,200+ implementations.
Detailed Reviews: 12 Best SharePoint Migration Services
Best for enterprise SharePoint migration with 5,200+ implementations and compliance governance
127 reviews
Key Strengths:
- 5,200+ SharePoint implementations since original beta (Project Tahoe)
- 4 Microsoft Press books by founder including large-scale migration guides
- Zero-data-loss guarantee with chain-of-custody audit trails
- Custom PowerShell + SPMT + Migration Manager hybrid approach
- Compliance-first: HIPAA, SOC 2, FedRAMP maintained throughout migration
- Post-migration governance framework with adoption training
Migration Types:
Compliance During Migration:
Full HIPAA, SOC 2, FedRAMP, CMMC chain-of-custody with zero-downtime cutover
Data Volume Capacity:
500TB+ proven (largest single migration: 85TB, 42,000 users)
Best for: Fortune 500 enterprises in regulated industries needing guaranteed zero-data-loss migration with full compliance chain-of-custody
AvePoint
Best for automated SharePoint migration with built-in governance
203 reviews
Key Strengths:
- FLY migration platform handles complex tenant-to-tenant scenarios
- Built-in pre-migration compliance assessment and remediation
- Automated permission mapping and sensitivity label preservation
- Strong Google Workspace to SharePoint migration tooling
Migration Types:
Compliance During Migration:
Built-in compliance scanning, sensitivity label preservation, DLP policy mapping
Data Volume Capacity:
200TB+ with FLY migration platform
Best for: Organizations needing automated migration tooling with built-in compliance scanning and governance
Avanade
Best for large-scale SharePoint modernization programs
189 reviews
Key Strengths:
- Accenture/Microsoft joint venture with deepest Microsoft relationship
- Global delivery capability across 25+ countries
- End-to-end digital workplace transformation beyond just migration
- Massive project management infrastructure for 100K+ user migrations
Migration Types:
Compliance During Migration:
Enterprise compliance frameworks, global data residency management
Data Volume Capacity:
1PB+ across distributed global migrations
Best for: Global enterprises with 50,000+ users needing full digital workplace modernization, not just a migration
Catapult Systems
Best for SharePoint hybrid migration strategies
84 reviews
Key Strengths:
- Deep hybrid configuration expertise for organizations that cannot fully move to cloud
- Strong government and education vertical with compliance experience
- Texas-based with strong regional presence and on-site delivery
- Managed services post-migration for ongoing SharePoint administration
Migration Types:
Compliance During Migration:
Government and education compliance expertise, ITAR support
Data Volume Capacity:
100TB+ with phased migration approach
Best for: Government and education organizations needing hybrid SharePoint configurations with on-premises components retained
ShareGate (by Workleap)
Best for self-service SharePoint migration tools
312 reviews
Key Strengths:
- Intuitive migration tool that IT teams can operate without consultants
- Excellent pre-migration reporting and content analysis
- Strong Teams and Microsoft 365 Groups migration support
- Cost-effective for organizations with capable internal IT staff
Migration Types:
Compliance During Migration:
Permission reporting, metadata preservation, pre-migration audit tools
Data Volume Capacity:
50TB+ (tool-based, scales with infrastructure)
Best for: Mid-market organizations with strong internal IT teams who want to run their own migration with excellent tooling
Binary Stream
Best for SharePoint migration with business process automation
56 reviews
Key Strengths:
- Migration includes business process re-engineering, not just content move
- Strong Dynamics 365 and ERP integration during migration
- Workflow modernization from SharePoint Designer to Power Automate
- Financial services expertise with audit trail preservation
Migration Types:
Compliance During Migration:
Financial services compliance, audit trail preservation during migration
Data Volume Capacity:
50TB+ with business process validation
Best for: Organizations with heavy SharePoint workflow dependencies that need business process modernization during migration
KWizCom
Best for SharePoint custom solution migration and preservation
43 reviews
Key Strengths:
- Deep expertise in migrating custom SharePoint solutions and web parts
- InfoPath to Power Apps conversion specialists
- Custom solution compatibility assessment before migration
- Modern replacement development for deprecated features
Migration Types:
Compliance During Migration:
Custom solution compatibility assessment, functionality preservation validation
Data Volume Capacity:
25TB+ (specializes in complexity over volume)
Best for: Organizations with heavy custom development (web parts, InfoPath, SharePoint Designer workflows) that need functionality preserved
Perficient
Best for SharePoint migration with custom development
134 reviews
Key Strengths:
- Full-stack custom development capability alongside migration
- Strong integration expertise (SAP, Salesforce, custom APIs)
- Healthcare vertical with HITRUST certification experience
- Large delivery team for parallel workstream execution
Migration Types:
Compliance During Migration:
Healthcare and financial services compliance, HITRUST certification support
Data Volume Capacity:
200TB+ with enterprise delivery model
Best for: Enterprises needing significant custom development and third-party integration work alongside their SharePoint migration
HCLTech
Best for global multi-tenant SharePoint migrations
167 reviews
Key Strengths:
- Massive global delivery model with 24/7 migration execution windows
- Multi-tenant consolidation expertise for post-M&A scenarios
- Cost-effective offshore/onshore blended delivery
- Multi-language and multi-jurisdiction compliance experience
Migration Types:
Compliance During Migration:
Global data residency, GDPR, multi-jurisdiction compliance management
Data Volume Capacity:
1PB+ across distributed global environments
Best for: Global enterprises with multiple tenants across jurisdictions needing consolidation and standardization at scale
Netwoven
Best for SharePoint intranet migration and redesign
72 reviews
Key Strengths:
- Intranet-first migration approach with UX redesign built into the project
- Information architecture restructuring during migration, not after
- Strong content governance and metadata standardization
- User adoption programs with change management integrated
Migration Types:
Compliance During Migration:
Information architecture validation, content governance during migration
Data Volume Capacity:
100TB+ with content restructuring
Best for: Organizations using SharePoint primarily as an intranet who want to modernize the experience during migration
Bamboo Solutions
Best for SharePoint workflow migration to Power Automate
38 reviews
Key Strengths:
- Deep workflow migration expertise: SharePoint Designer, Nintex, InfoPath to Power Automate
- Workflow discovery and documentation before migration begins
- Power Automate Center of Excellence setup post-migration
- Government sector expertise with DC-area presence
Migration Types:
Compliance During Migration:
Workflow audit and compliance mapping, process documentation
Data Volume Capacity:
25TB+ (workflow-focused, not bulk data)
Best for: Organizations with hundreds of SharePoint Designer or Nintex workflows that need systematic conversion to Power Automate
Slalom
Best for SharePoint migration with change management and adoption
156 reviews
Key Strengths:
- Adoption-led migration approach: users are ready before content moves
- Strong change management methodology with executive alignment
- Champion network programs for sustained post-migration adoption
- Local market expertise with consultants embedded in your city
Migration Types:
Compliance During Migration:
Change management frameworks, stakeholder communication plans
Data Volume Capacity:
100TB+ with phased adoption approach
Best for: Enterprises where user adoption is the primary risk and change management needs to drive the migration timeline
How to Choose the Right SharePoint Migration Partner
After rescuing dozens of failed migrations run by the wrong partner, here's what I tell every CTO: the tool matters less than the team operating it. A great engineer with SPMT will outperform a junior consultant with ShareGate every time. That said, here are the non-negotiable criteria.
1. Ask for Their Migration Runbook
Every experienced migration partner has a documented runbook — a step-by-step operational guide for executing each migration wave. If they cannot show you a runbook during the sales process, they are building one on your dime. At EPC Group, our runbook is 200+ pages built from 5,200 implementations. Your partner's should reflect similar depth.
2. Demand a Permission Validation Plan
The #1 post-migration issue is broken permissions. Ask specifically: "How do you validate that permissions in the destination match the source after each migration wave?" The answer should involve automated comparison scripts, not manual spot-checks. If they say "we sample 5% of sites," walk away.
3. Understand Their Custom Solution Strategy
If you have InfoPath forms, SharePoint Designer workflows, or custom web parts, the migration partner needs a modernization plan for each one. Not "we'll figure it out during migration." Each custom solution should have a documented replacement path (Power Apps, Power Automate, SPFx) with effort estimates before the contract is signed.
4. Verify Their Compliance Experience
For HIPAA, SOC 2, or FedRAMP environments: your migration partner must demonstrate chain-of-custody documentation, data-in-transit encryption validation, and compliance posture maintenance throughout the migration — not just in the final state. Ask for redacted compliance reports from previous migrations in your regulatory framework.
5. Negotiate Post-Migration Hypercare
The first 90 days after migration are when 80% of issues surface. Your contract should include dedicated hypercare support — not just break-fix tickets routed to a general help desk. The best firms include 90 days of hypercare in the base migration price. If hypercare is an expensive add-on, the firm is not confident in their migration quality.
Real Timeline Expectations for Enterprise SharePoint Migration
These timelines are based on our actual project data across 5,200+ implementations. Your mileage will vary based on customization complexity and compliance requirements, but these ranges are realistic for well-executed enterprise migrations.
| Environment Size | Users | Typical Data Volume | Realistic Timeline | Common Pitfall |
|---|---|---|---|---|
| Small | 100-500 | 1-5 TB | 6-10 weeks | Skipping pilot phase |
| Mid-Market | 500-5,000 | 5-25 TB | 3-5 months | Underestimating custom solution modernization |
| Enterprise | 5,000-25,000 | 25-100 TB | 4-8 months | Permission drift across migration waves |
| Large Enterprise | 25,000-100,000+ | 100-500+ TB | 6-14 months | Scope creep from undiscovered dependencies |
SharePoint 2016 & 2019 End of Support: Why 2026 Is the Year to Migrate
SharePoint Server 2016 reached end of mainstream support in July 2021 and extended support ends July 2026. SharePoint Server 2019 mainstream support ends in July 2024 with extended support through July 2026. If you're still running on-premises SharePoint, you are either already out of mainstream support or about to lose extended support entirely.
This is not a drill. After end of extended support, Microsoft will not release security patches. Every month you delay migration is a month your SharePoint environment runs without security updates in a threat landscape that is more aggressive than ever. I've watched organizations defer migration for years and then scramble when an auditor flags unsupported infrastructure. Don't be that organization. Start your migration assessment now — even if the actual move happens over the next 6-12 months.
Frequently Asked Questions About SharePoint Migration
How long does a SharePoint migration take?
Timeline depends on environment complexity, not just data volume. A 10,000-user on-premises to SharePoint Online migration typically takes 4-8 months including discovery, planning, pilot, migration waves, and hypercare. A smaller 500-user tenant-to-tenant migration can complete in 6-10 weeks. Anyone promising to migrate a complex enterprise environment in 6 weeks is either cutting corners on governance, skipping user adoption, or does not understand your environment. At EPC Group, our 5,200+ implementations have shown that the discovery and planning phase alone should take 3-6 weeks for enterprise environments.
What is the difference between SPMT, Migration Manager, and third-party tools like ShareGate?
Microsoft SharePoint Migration Tool (SPMT) is free and handles basic on-premises to SharePoint Online migrations, but lacks scheduling, reporting, and compliance features. Migration Manager is the cloud-based evolution of SPMT with better orchestration for large-scale migrations. Third-party tools like ShareGate, AvePoint FLY, and Sharegate offer pre-migration assessment, permission mapping, metadata preservation, scheduling, and detailed reporting that the free tools lack. For enterprise migrations, we typically use a hybrid approach: Migration Manager for bulk content with custom PowerShell for permission remediation and third-party tools for pre-migration analysis and validation.
Can I migrate SharePoint on-premises customizations to SharePoint Online?
Not directly. Server-side code (farm solutions, sandbox solutions with code) cannot run in SharePoint Online. These must be rebuilt as SharePoint Framework (SPFx) solutions, Power Apps, or Power Automate flows. InfoPath forms need conversion to Power Apps. SharePoint Designer workflows must be rebuilt in Power Automate. The critical step most firms skip is a thorough customization inventory before migration. At EPC Group, we run automated scanning tools against your farm to catalog every custom solution, workflow, InfoPath form, and web part, then provide a modernization roadmap with effort estimates before any content moves.
How do you maintain compliance (HIPAA, SOC 2) during a SharePoint migration?
Compliance during migration requires chain-of-custody documentation, permission validation at every migration wave, sensitivity label preservation, and audit logging. The migration itself must maintain the same access controls as the source environment at every stage. We implement pre-migration permission snapshots, per-wave validation scripts that compare source and destination permissions, sensitivity label mapping between on-premises classification and Microsoft Purview labels, and post-migration compliance verification reports. For HIPAA environments, we also ensure PHI never traverses unencrypted channels and migration staging areas are access-controlled and logged.
What is the biggest risk in a SharePoint migration?
The number one risk is not data loss, it is permission drift. During migration, permission inheritance can break, unique permissions can be lost, and Active Directory group memberships may not map cleanly to Entra ID (Azure AD) groups. The result is users either lose access to content they need or, worse, gain access to content they should not see. The second biggest risk is metadata loss: custom columns, content types, managed metadata, and version history can be stripped if the migration tool is not configured correctly. Both risks are preventable with proper pre-migration assessment and per-wave validation, which is why tool selection alone does not determine migration success.
Should I clean up content before or during migration?
Before. Every terabyte you migrate costs time, money, and risk. We recommend a structured content disposition process: identify ROT (Redundant, Outdated, Trivial) content using analytics and last-modified dates, archive content not accessed in 18+ months, delete true ROT, and migrate only active content. In our experience across 5,200+ implementations, the average enterprise can reduce migration volume by 30-40% through pre-migration cleanup. This directly translates to faster migration, lower cost, and cleaner destination environment. Do not pay to migrate content nobody has touched in three years.
How much does a SharePoint migration cost?
Enterprise SharePoint migration costs range from $50,000 for a straightforward 500-user migration to $500,000+ for complex multi-farm, multi-geography environments with heavy customization. Key cost drivers include: number of users and sites, volume of custom solutions requiring modernization, compliance requirements (HIPAA, FedRAMP add 15-25% to project cost), number of workflows requiring Power Automate conversion, and whether you need hybrid configuration. Tool licensing (ShareGate, AvePoint) typically adds $5,000-$50,000 depending on data volume. Budget 15-20% of total project cost for post-migration hypercare and user adoption. The cheapest migration is never the best migration — cutting corners on governance and validation creates technical debt that costs 3-5x more to fix after go-live.
Ready to Plan Your SharePoint Migration?
EPC Group offers free 30-minute SharePoint migration assessments. Get expert recommendations on migration approach, timeline, tooling, and compliance requirements from a team with 5,200+ implementations.
Schedule Free Migration AssessmentAbout the Author
Errin O'Connor is the Founder and Chief AI Architect at EPC Group. A member of the original SharePoint beta team (Project Tahoe) at Microsoft, Errin has led 5,200+ SharePoint implementations across 28 years. He is the bestselling author of 4 Microsoft Press books covering SharePoint, Power BI, Azure, and large-scale enterprise migrations. His clients include Fortune 500 companies in healthcare (HIPAA), financial services (SOC 2), and government (FedRAMP) sectors.
View full profile →