Healthcare cloud compliance and security specialist providing purpose-built solutions for HIPAA-compliant cloud environments.
Top RatedGoogle PartnerAWS Partner+3 more
Cloud Migration & ModernizationTop 10 Elite
The very best agencies • View detailed Top 10
Agencies 11–25
Strong contenders and rising stars
Google Cloud Premier Partner specializing in data analytics, AI/ML, and cloud migration with focus on Google Cloud Platform.
Top RatedGoogle Partner10+ Years+1 more
Cloud Migration & Modernization
Modern consulting firm with Slalom Build practice specializing in digital product development and cloud-native application migrations.
Top Rated15+ YearsLarge Team
Cloud Migration & ModernizationApp Modernization & Legacy Migration
Global IT services provider with comprehensive cloud migration solutions tailored for diverse industries and complex enterprise requirements.
Top Rated15+ YearsEnterprise
Cloud Migration & ModernizationLegacy Modernization
AWS Premier Partner specializing in cloud migration with Mission Control platform for real-time monitoring and optimization of AWS environments.
Top RatedAWS Partner5+ Years+1 more
Cloud Migration & Modernization
Data infrastructure specialist providing cloud migration with particular focus on database migrations, optimization, and data platform modernization.
Top RatedAWS PartnerMicrosoft Partner+2 more
Cloud Migration & ModernizationAI/ML Development
Cloud transformation specialist with AI-powered CONCIERTO platform for holistic migration across AWS, Azure, and Google Cloud platforms.
Top RatedGoogle PartnerAWS Partner+3 more
Cloud Migration & ModernizationApp Modernization & Legacy Migration
DevOps and cloud transformation specialist acquired by Cognizant, focusing on enterprise digital transformation and cloud-native adoption.
Top Rated10+ YearsMid-Size
Cloud Migration & Modernization
Hybrid IT services provider offering cloud migration and managed services with particular strength in mainframe modernization and complex infrastructure.
Top RatedGoogle PartnerAWS Partner+3 more
Cloud Migration & ModernizationManaged Cloud Services
RapidScale is a managed and hybrid-managed cloud services provider delivering secure, scalable cloud computing, IT infrastructure, disaster recovery, and managed support to businesses of all sizes.
Top Rated15+ YearsMid-Size
Cloud Migration & ModernizationManaged Cloud Services
Government-focused IT services provider specializing in secure cloud migration for defense and federal agencies with FedRAMP expertise.
Top Rated15+ YearsMid-Size
Cloud Migration & Modernization
Healthcare-specialized cloud migration provider with HITRUST certification, focusing exclusively on healthcare and life sciences sectors.
Top RatedGoogle PartnerAWS Partner+3 more
Cloud Migration & ModernizationApp Modernization & Legacy Migration
AWS and Salesforce migration specialist with comprehensive cloud services and proven track record in enterprise cloud transformations.
Top RatedAWS Partner15+ Years+1 more
Cloud Migration & Modernization
AWS Premier Partner providing elite-level AWS migration and managed services with comprehensive cloud transformation capabilities.
Top Rated10+ YearsMid-Size
Cloud Migration & ModernizationManaged Cloud Services
DevOps and cloud migration specialist focusing on automated, infrastructure-as-code approaches for AWS migrations.
Top Rated10+ YearsSmall Team
Cloud Migration & ModernizationComplete Top 25 Cloud Migration & Modernization Agencies
Full numbered list of all 25 agencies
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Complete Top 25 Cloud Migration & Modernization Agencies
Full numbered list of all 25 agencies
- 1.Capgemini — New York
- 2.Red Hat Consulting — North Carolina
- 3.Accenture — New Jersey
- 4.Cognizant — New Jersey
- 5.Deloitte — New York
- 6.IBM Consulting — New York
- 7.Infosys — Texas
- 8.NTT DATA Services — Texas
- 9.PwC — New York
- 10.TCS (Tata Consultancy Services) — New York
- 11.ClearDATA — Texas
- 12.66degrees — Illinois
- 13.Slalom — Washington
- 14.Wipro — New Jersey
- 15.Mission Cloud Services — California
- 16.
- 17.Trianz — California
- 18.Contino (part of Cognizant) — New York
- 19.Ensono — Illinois
- 20.RapidScale — New York
- 21.TIAG — Virginia
- 22.Cloudticity — Washington
- 23.Allcloud — Colorado
- 24.CloudHesive — Colorado
- 25.Flux7 — Texas
Top 25 Cloud Migration & Modernization Agencies — FAQ
Common questions about the best cloud migration & modernization agencies.
Who is the #1 cloud migration & modernization agency in the USA in 2026?
As of 2026, the top-ranked cloud migration & modernization agency in the USA on AgencyCluster is Capgemini, with an AgencyCluster Score of 100/100. Rankings are based on verified evidence across credibility, proof of work, reputation, category specialization, delivery maturity, and freshness. Rankings are updated periodically as new evidence becomes available.
How were the top 25 cloud migration & modernization agencies in the USA selected?
This list features 25 agencies selected from AgencyCluster's curated directory. Each agency was evaluated using the AgencyCluster Score (0–100), with particular weight on demonstrated expertise in cloud migration & modernization. Only agencies with verified credentials are eligible, and rankings cannot be purchased. The agencies on this list average 35+ years of experience. For full methodology details, see our How We Rank page.
What should I look for when choosing a cloud migration & modernization agency from this list?
Ask about their migration methodology and how they assess which workloads to rehost, refactor, or rebuild. Check their experience with your source and target platforms. Ask about their approach to minimizing downtime during migration and how they handle data migration for large datasets.
How much do the top cloud migration & modernization agencies typically charge?
Cloud readiness assessments cost $15K–$50K. Application migration projects range from $50K–$300K per major system. Enterprise-wide cloud transformation programs can exceed $500K. Post-migration optimization runs $10K–$30K/month.
Trusted Rankings
Every agency on this list has been reviewed by our editorial team. Rankings are based on our transparent methodology which evaluates credibility, outcomes, and reputation.
No paid rankingsVerified credentialsUpdated regularly
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