Top 10 Cloud Migration Service Companies with Consultancy
Cloud migration is not always easy, particularly for businesses with old systems, critical data, and applications that need running at all times. That’s why many large businesses prefer to hire cloud migration consulting firms rather than going it alone. For instance, Kyndryl says it’s moved over 500,000 workloads over the last three years.
This guide lists 10 best companies that offer cloud consulting and cloud migration services. It will enable you to know what each of the companies has to offer before you call them for a quote.
What is a Cloud Migration Service Company?
A cloud migration company helps businesses move their applications, data, and IT systems from physical servers to the cloud. They can also assist with moving systems between cloud platforms, like AWS, Microsoft Azure, or Google Cloud.
These companies do more than just move data. They can assist in planning the migration, handle all the technical work, and even offer support after the migration. Many also provide consulting and advice to businesses to help them select the right cloud strategy before migration starts.
Quick Comparison of the Best Cloud Migration Companies with Migration Services in 2026
| Company | Cloud Platforms | Standout Strength | Best For |
| Accenture | AWS, Azure, GCP, Oracle | Scale and cross-platform depth | Large, multi-year transformations |
| IBM Consulting | AWS, Azure, GCP, IBM Cloud | AI-ready hybrid cloud | Hybrid and mainframe environments |
| Deloitte | AWS, Azure, GCP | Compliance and governance | Regulated industries |
| Capgemini | AWS, Azure, GCP | SAP and Oracle migrations | Multinational SAP/Oracle users |
| Cognizant | AWS, Azure, GCP | App modernization + migration | Legacy application portfolios |
| Kyndryl | AWS, Azure, GCP, IBM Cloud | Mainframe and infrastructure scale | Legacy mainframe modernization |
| Wipro | AWS, Azure, GCP | Security-first, proven results | Regulated enterprises |
| Infosys | AWS, Azure, GCP | Prebuilt Cobalt blueprints | Faster multi-cloud migrations |
| Rackspace Technology | AWS, Azure, GCP, VMware | 24/7 multi-cloud support | Ongoing managed operations |
What Are the steps involved in Cloud migration?
Cloud migration usually involves planning, execution, and optimization, with each stage covering key tasks to move workloads safely.
Plan the Migration
- Assess the environment: Review applications, servers, databases, and dependencies.
- Set goals and strategy: Define objectives and choose whether to rehost, replatform, refactor, or retire workloads.
- Choose the cloud platform: Select AWS, Microsoft Azure, Google Cloud, or another provider.
- Plan security: Set up the required architecture, access controls, backups, and compliance measures.
Migrate and Test
- Prepare the environment: Configure networking, security, storage, and other cloud resources.
- Move workloads: Transfer applications, databases, files, and other data to the cloud.
- Test and switch over: Validate performance, security, and data integrity before moving live workloads.
Optimize and Manage
- Monitor performance: Track workloads and resolve issues after migration.
- Control costs: Right-size resources and remove unused infrastructure.
- Modernize where needed: Upgrade applications with cloud-native services and continue managing security and backups.
Top 10 Cloud Migration Service Consulting Companies
Here are the top ten cloud migration services that many enterprises and businesses prefer:
1. Accenture
Accenture offers cloud consulting, migration, modernization, security, and managed services to large enterprises. It supports key cloud platforms like AWS, Microsoft Azure, and Google Cloud. Accenture also employs tools like myNav to assist businesses in planning cloud migrations and myWizard for automation.
- Cloud services: AWS, Azure, Google Cloud, and others
- Migration services: Application and infrastructure migration, data migration, and modernization
- Consulting: Cloud planning, assessment, architecture and migration strategy
- Automation: myNav and myWizard
- Certifications: 2026 Google Cloud Partner of the Year and 20,000+ AWS-certified staff
- Managed services: Post-migration operations, 24/7 coverage
Key strengths: Accenture stands out for its combination of large-scale cloud delivery, proprietary migration tools, and extensive expertise across major cloud platforms.
2. IBM Consulting
IBM Consulting enables companies to transform and modernize applications for public, private and hybrid cloud. It supports AWS, Azure, Google Cloud, Oracle Cloud, IBM Cloud, and Red Hat OpenShift. AI and automation also help with IBM Cloud migration and modernization.
- Cloud platforms: AWS, Azure, Google Cloud, Oracle Cloud, IBM Cloud, Red Hat OpenShift
- Consulting: Cloud readiness, architecture, planning, and modernization
- Automation: IBM Consulting Advantage and migration factory methods
- Security: Cloud security and compliance services
- Certifications: 25,000+ AWS certifications
Key strengths: IBM is particularly focused on hybrid environments where businesses need to connect existing infrastructure, multiple clouds, and modern application platforms.
3. Deloitte
Deloitte is one of the top cloud consulting, migration, and modernization services. It provides teams to evaluate your company’s existing IT environment, design a migration strategy, move applications and infrastructure, and manage the cloud post-migration. Deloitte operates on AWS, Microsoft Azure, Google Cloud and Oracle Cloud.
- Cloud platforms: AWS, Azure, Google Cloud, Oracle Cloud
- Consulting: Cloud assessments, migration planning, architecture, and strategy
- Automation: Cloud engineering and automation services.
- Security: Security, compliance, and governance
- Certifications: 17,000 AWS certifications as a 10-year AWS partner
- Managed services: Post-migration governance and support
Key strengths: Deloitte combines cloud engineering with business, risk, and industry expertise, making its services broader than migration alone.
4. Capgemini
Capgemini works with enterprises on cloud transformation, data center changes, SAP environments, and application workloads. Its services also include FinOps and ongoing cloud operations across major providers.
- Cloud platforms: AWS, Azure, Google Cloud, Oracle Cloud
- Migration services: SAP, application, infrastructure, and cloud migration
- Consulting: Cloud strategy, assessment, architecture and transformation planning
- Automation: Zero-downtime migration tooling
- Security: GDPR and DORA-aligned compliance frameworks
- Certifications: Partnerships across all three major hyperscalers
- Managed services: Ongoing cloud infrastructure operations
Key strengths: Capgemini has particular experience with SAP, enterprise infrastructure, and large transformation programs that continue beyond the initial migration.
5. Cognizant
Cognizant helps businesses move complex IT environments to the cloud while supporting modernization efforts. Its services cover cloud adoption, legacy systems, and large-scale enterprise environments, with partnerships across major cloud providers.
- Cloud services: AWS and other major cloud environments
- Migration services: Application, data and mainframe migration
- Consulting: Cloud planning, modernization and migration strategy
- Automation: Migration accelerators and cloud automation
- Security: Industry-specific security and compliance solutions
- Certifications: AWS Mainframe Migration Competency Partner
Key strengths: Cognizant is particularly suited to large organizations that need to combine cloud adoption with legacy system modernization and industry-specific requirements
6. Kyndryl
Kyndryl focuses on enterprise infrastructure and the operation of complex IT environments, making it particularly relevant for organizations with legacy infrastructure and mission-critical systems.
- Cloud platforms: AWS, Azure, Google Cloud, IBM Cloud, Oracle Cloud
- Migration services: Mainframe, SAP, infrastructure migration
- Consulting: Migration roadmap and modernization strategy
- Automation: Kyndryl Cloud Uplift (no-rewrite mainframe migration)
- Security: Enterprise-grade resilience and compliance
- Certifications: 11,000+ AWS certifications and 25,000+ Microsoft certifications
- Managed services: Ongoing infrastructure management
Key strengths: Kyndryl brings deep infrastructure and mainframe experience to cloud projects, including environments where reliability and ongoing operations are critical.
7. HCLTech
HCLTech provides cloud consulting, migration, modernization and managed services via its CloudSMART approach. The company collaborates with leading cloud service providers and specializes in enterprise cloud transformation at scale.
- Cloud platforms: AWS, Azure, Google Cloud and other major cloud platforms
- Migration services: Infrastructure, application, SAP and cloud migration
- Consulting: Cloud strategy, planning and modernization
- Automation: AWS and Azure-native migration tooling
- Security: Industry-specific compliance across regulated sectors
- Certifications: AWS Premier Partner, Google Cloud Diamond Partner, 40,000+ certified staff, 12,000 cloud assets and many more
Key strengths: HCLTech’s cloud services help businesses plan cloud transformations, migrate workloads, and modernize applications.8.8.
8. Wipro
Wipro combines cloud engineering with cloud economics, FinOps, application transformation, and multi-cloud operations. Its services are designed to help organizations manage both the technical and financial side of cloud adoption.
- Cloud platforms: AWS, Azure and Google Cloud
- Migration services: Application modernization, infrastructure migration
- Consulting: Security-first migration strategy with built-in FinOps
- Automation: AWS and Azure migration accelerators
- Security: HIPAA and PCI-aligned compliance
- Certifications: Google Cloud Diamond Partner, 25,000+ AWS specialists
Key strengths: Wipro places a strong emphasis on cloud economics, helping businesses manage cloud spending alongside migration and engineering requirements.
9. Infosys Cobalt
nfosys Cobalt brings together cloud services, migration tools, industry solutions, and managed services. Its workload migration suite helps organizations analyze application portfolios and determine suitable deployment and migration strategies.
- Cloud platforms: AWS, Azure, Google Cloud, and other cloud platforms
- Migration services: Application, data, and multi-cloud migration.
- Consulting: Cloud strategy, planning, and modernization
- Automation: 300+ prebuilt AWS microservices and blueprints
- Security: Compliance-focused governance frameworks
- Certifications: AWS Premier Partner, Azure Expert MSP and GCP Premier Partner
Key strengths: Infosys is a Premier Consulting Partner of AWS and leverages Infosys Cobalt to help customers with cloud migration and modernization initiatives.
10. Rackspace Technology
Rackspace Technology combines cloud consulting with professional services and managed operations. Its approach is particularly useful for businesses that want continued support after workloads have been moved to the cloud.
- Cloud platforms: AWS, Microsoft Azure, VMware, and Google Cloud
- Migration services: Cloud, application, and infrastructure migration
- Consulting: Cloud strategy and advisory services
- Automation: Rackspace Fabric for unified multi-cloud management
- Security: Managed security across cloud environments
- Certifications: AWS Premier Partner with 2,200 AWS certifications, AWS Migration Partner of the Year (2021), 15+ AWS competencies
Key strengths: Rackspace combines migration expertise with managed cloud operations, making ongoing administration and optimization a major part of its offering.
How Much Does Cloud Migration Cost?
Cloud migration doesn’t have a set cost. The price varies based on the number of workloads, the complexity of your systems, the cloud platform you are using, and the need to modernize applications during the migration.
To put that in perspective, an AWS survey revealed that 50% of companies estimated the cost of migration at $100 to $500 per machine, and 17% estimated it to be more than $500 per machine. Higher costs were reported by larger organizations, with 23% of companies with over 1,000 employees estimating costs of over $500 per machine.
Smaller cloud migration projects are estimated to be around $20,000 to $100,000, and larger enterprise migrations can cost millions of dollars depending on the number of workloads and modernization levels.
That’s why most businesses will prefer to get a custom quote for the job instead of a standard price. The final cost is dependent on the number of workloads, migration strategy, application complexity, data transfer, and changes required to make applications cloud-ready.
How to Choose a Cloud Migration Consulting Company?
When comparing cloud migration companies, focus on these key areas:
- Cloud platforms: Ensure that the company supports the cloud platform of your choice, such as AWS, Microsoft Azure, or Google Cloud along with services like Amazon EC2, Azure Virtual Machines, and Google Compute Engine.
- Industry experience: Look for experience working with businesses in your industry and systems similar to yours like the databases, enterprise applications, legacy systems, and hybrid environments.
- Migration services: Ensure they can move your systems and provide application modernization, database migration, workload migration, or containerization if required.
- Security and compliance: Check whether they can work with requirements such as SOC 2, ISO 27001, HIPAA, PCI DSS, or GDPR and provide services such as identity management, encryption, security monitoring, and access controls.
- Post-migration support: Check if they provide cloud management, monitoring, security, and cost optimization services post-migration.
- Assessment and planning: Discuss what their initial assessment entails and how they determine risks, application dependencies, and expected costs prior to the migration.
Common Cloud Migration Challenges
There are a number of challenges to cloud migration. Some applications and legacy systems might require additional effort to transition to the cloud. Sometimes, application dependencies can make it hard to determine which systems should be moved first.
Another issue is downtime, particularly if the application must continue to be available during the move. Costs can also vary if the assessment fails to capture resource usage, dependencies, licensing needs, or modernization efforts.
Security and compliance are also important factors to consider before migration. A thorough assessment can help you uncover security needs and other needs before the move, instead of after.
Recommendations
Selecting a cloud migration company isn’t just about selecting a provider who can move your workloads. It’s also important to take into account its experience with your technology, migration strategy, security needs, and capacity to support your business following the move.
The companies in this guide have their unique specialties, ranging from enterprise migrations and legacy systems to application modernization and managed cloud services. Check their skills against your needs, request a thorough evaluation, and obtain a migration strategy before entering into a contract.
Frequently Asked Questions (FAQs)
Should we move all applications to the cloud?
No. For some applications, technical constraints, compliance needs, specific hardware, or the lack of business value in moving the application may make it better suited to be on-premises. A proper application assessment can be used to decide which workloads should be migrated, retained, replaced or retired.
What if two applications rely on one another?
The consulting team must determine these dependencies prior to the migration of either application. If one system is moved without taking into account the systems that it depends on, then errors or downtime may result. Dependency mapping can be used to identify the correct migration sequence and whether applications should be reconfigured.
Should an enterprise test its applications before they go on cloud?
Yes. Testing in a separate environment allows the migration team to test application behavior, data integrity, performance, and configuration prior to switching users to the new environment. Testing can also uncover issues that were not discovered during the initial evaluation.
What happens to software licenses when they go to the cloud?
Older software licenses might not always operate in the same manner in the cloud. Businesses should check the licenses of the software they are using before migration, as the rules may differ from software vendor to cloud platform, and incorporate any necessary changes into the migration plan.
Can some data stay on the company’s existing servers after migration?
Yes. A business doesn’t always have to relocate all at once. Data residency rules, technical requirements, or application dependencies may require some data or application components to stay on-premises. This can lead to a hybrid system that integrates cloud and on-premises resources.
