Cloud migration can mean anything from a relatively direct infrastructure move to a full application re-architecture, so the right provider depends heavily on what actually needs to change. The companies below cover dedicated migration consulting, cloud infrastructure transfers, application modernization, DevOps, platform engineering, and post-migration support. Some offer migration as a core service, while others are better suited to projects where moving to the cloud is tied to broader software modernization.
1. OSKI Solutions
OSKI Solutions covers cloud migration from initial assessment through production cutover and post-migration optimization. Its process includes workload and dependency analysis, migration strategy selection, infrastructure and data movement, re-platforming, containerization, infrastructure automation, and ongoing cloud operations. Projects can use rehost, replatform, or re-architect approaches depending on the workload rather than forcing the same migration pattern across an entire environment. OSKI works with AWS and Microsoft Azure alongside Terraform, Docker, Kubernetes, and related cloud technologies. A published project involved moving a university platform with about 80,000 pages from Azure to AWS without service interruption.
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Key Facts
- Best for: Complex application and infrastructure migrations requiring planning and execution
- Core services: Cloud migration, infrastructure migration, data migration, re-platforming, containerization, IaC, post-migration optimization
- Cloud platforms: AWS, Microsoft Azure
- Technologies: Terraform, Docker, Kubernetes, AWS ECS, Amazon RDS, Amazon S3, Azure App Service
- Notable strength: Staged migration planning with cutover and rollback procedures
Contact Information
- Website: oski.site
- Phone: +48571282759
- Email: contact@oski.site
- Address: Kaupmehe tn 7-120, 10114 Tallinn, Estonia
- LinkedIn: www.linkedin.com/company/oski-solutions
2. A-listware
A-listware handles cloud migration within a broader infrastructure services practice. Its migration work includes planning and executing transfers from on-premises infrastructure to cloud environments, with an emphasis on reducing downtime while improving scalability and infrastructure flexibility. The company can continue managing the target environment after migration through cloud infrastructure management, monitoring, security, and DevOps support. AWS, Microsoft Azure, and Google Cloud Platform are included in its cloud technology coverage, making A-listware relevant for organizations that want migration connected with ongoing infrastructure administration rather than treated as a one-time move.
Key Facts
- Best for: Cloud migration combined with managed infrastructure services
- Core services: Cloud migration, cloud infrastructure consulting, cloud management, infrastructure support, DevOps consulting
- Cloud platforms: AWS, Microsoft Azure, Google Cloud Platform
- Infrastructure scope: Cloud, hybrid, and on-premises environments
- Notable strength: Migration can continue into ongoing cloud infrastructure management and support
Contact Information
- Website: a-listware.com
- Phone: +1 (888) 337 93 73
- Email: info@a-listware.com
- Address: North Bergen, NJ 07047, USA
- LinkedIn: www.linkedin.com/company/a-listware
- Facebook: www.facebook.com/alistware
3. Itexus
Itexus combines cloud infrastructure work with DevOps engineering, which makes it relevant when migration affects both hosting and software delivery processes. Its cloud services include building new environments, auditing existing infrastructure, moving workloads from on-premises systems to the cloud, and transferring infrastructure between cloud providers. The company also handles infrastructure as code, automated monitoring, backup and recovery, containerization, orchestration, and CI/CD automation. Its cloud stack covers AWS, Microsoft Azure, Google Cloud, and IBM Cloud. The broader company focus on fintech also gives the cloud practice a natural connection to financial applications with demanding reliability and infrastructure requirements.
Key Facts
- Best for: Cloud migration connected with fintech software and DevOps modernization
- Core services: Infrastructure migration, cloud setup, IaC, monitoring, backup and recovery, containerization, CI/CD
- Cloud platforms: AWS, Microsoft Azure, Google Cloud, IBM Cloud
- Technologies: Docker, Kubernetes and DevOps automation tooling
- Notable strength: Supports both cloud adoption and cloud-to-cloud infrastructure moves
Contact Information
- Website: itexus.com
- Email: info@itexus.com
- Address: 8, The Green, STE road, Dover, DE 19901, United States
- LinkedIn: www.linkedin.com/company/itexus
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- Instagram: www.instagram.com/itexus.soft
4. SoftPro
SoftPro approaches cloud migration alongside cloud-native development and software modernization. Its migration service covers infrastructure, data, and applications, including moves from off-premises environments and transfers between cloud platforms. The company works with Microsoft Azure and AWS and can combine migration with containerization, cloud-native application work, infrastructure management, and hybrid or multi-cloud architecture. This is particularly relevant for legacy software where simply relocating existing workloads may leave technical limitations untouched. SoftPro’s wider Microsoft technology background also gives it a practical angle for .NET applications moving toward Azure-based architectures.
Key Facts
- Best for: Legacy application migration and cloud modernization
- Core services: Cloud migration, cloud-native application development, infrastructure management, hybrid cloud, multi-cloud, cloud security
- Cloud platforms: Microsoft Azure, AWS
- Technology focus: Azure, .NET and Microsoft technologies
- Location: Warsaw, Poland
Contact Information
- Website: soft-pro.pl
- Address: 13 Erasmus Ciołka St. 401, Warsaw, Poland
5. .NET Developers
.NET Developers works on enterprise cloud architecture across Azure, AWS, and Google Cloud, with migration included directly in its cloud engineering scope. The company supports moves from on-premises environments as well as transfers between cloud platforms. Its approach begins by deciding which workloads should move as they are, which should be rebuilt, and which are better left in place. Infrastructure as code is another central part of the offering, using tools such as Terraform, Bicep, or Pulumi to make environments reproducible and reviewable. Security architecture, cloud cost management, and platform engineering can be incorporated into the same engagement.
Key Facts
- Best for: Enterprise migrations that require architecture and platform engineering
- Core services: Cloud architecture, on-premises migration, cloud-to-cloud migration, IaC, platform engineering
- Cloud platforms: Azure, AWS, Google Cloud
- IaC technologies: Terraform, Bicep, Pulumi
- Location: Warsaw, Poland
Contact Information
- Website: net-devs.com
- Phone: +48 571 282 759
- Email: contact@net-devs.com
- Address: Obrzeżna 1D, 02-691 Warszawa
- LinkedIn: www.linkedin.com/company/net-devs
6. Gilzor
Gilzor is most relevant to cloud migration projects where infrastructure changes are closely tied to custom software development. Its cloud work covers infrastructure planning, deployment automation, container-based environments, cloud architecture, DevOps, and ongoing application support. AWS, Azure, and Google Cloud are included in its cloud platform coverage. This setup can suit application-led migrations in which development teams need to modify, deploy, test, and maintain software as part of the move rather than simply transfer infrastructure from one environment to another. Cloud work can also remain connected to web, mobile, QA, architecture, and post-launch engineering.
Key Facts
- Best for: Application-led cloud migration and deployment projects
- Core services: Cloud deployment, DevOps, cloud architecture, application development, ongoing support
- Cloud platforms: AWS, Azure, Google Cloud
- Locations: Warsaw, Poland and Limassol, Cyprus
- Notable strength: Cloud engineering can be handled within the broader software development lifecycle
Contact Information
- Website: www.gilzor.com
- Email: contacts@gilzor.com
- Address: Poland, Warsaw, Office 58, street Adama Mickiewicza 37, 01-625
- LinkedIn: www.linkedin.com/company/gilzor-softwaredevelopment
7. Mobian
Mobian fits cloud migration projects primarily when the move forms part of a wider product engineering or modernization initiative. Its full-cycle development work covers mobile applications, backend systems, APIs, cloud infrastructure, QA, legacy integration, and continued scaling after launch. That combination is useful when an existing application needs architectural changes before or during its transition to a cloud environment. Instead of focusing solely on infrastructure transfer, Mobian can work across the application and platform layers, making it more relevant to software products that require redevelopment, integration work, or production optimization alongside their cloud transition.
Key Facts
- Best for: Product teams combining cloud transition with application development
- Core services: Product development, cloud-based systems, platform engineering, legacy integration, maintenance
- Industries: Healthcare, fintech, telecommunications, logistics, government
- Location: Tallinn, Estonia, with engineering operations in Ukraine
- Notable strength: Supports products beyond deployment with scaling and optimization work
Contact Information
- Website: mobian.studio
- Email: info@mobian.studio
- Address: Harju maakond, Tallinn, Kesklinna Linnaosa, Masina tn 22, 10113
- LinkedIn: www.linkedin.com/company/mobian-studio
8. 21century.tech
21century.tech is geared toward the software layer of modernization rather than standalone infrastructure migration. Senior engineers handle architecture, business logic, security decisions, code review, and QA, while AI-assisted workflows support coding, testing, documentation, and large-scale refactoring. Delivery includes CI/CD, production deployment, legacy refactoring, and third-party integration, with software deployed either into client infrastructure or an environment provided by the studio. That makes the company most applicable when a cloud migration requires significant application refactoring, integration changes, deployment pipeline work, or redevelopment before the software can run effectively in its target environment.
Key Facts
- Best for: Code-heavy modernization associated with a cloud move
- Core services: Software architecture, legacy refactoring, integrations, CI/CD, testing, production deployment
- Delivery model: Senior-led, AI-assisted software engineering
- Location: Miami, remote-first
- Notable strength: Combines application refactoring with production deployment into client or studio-managed infrastructure
Contact Information
- Website: 21century.tech
- Email: kirill@oski.site
Conclusion
Cloud migration is rarely a simple matter of moving applications and data to a different environment. The real work often starts earlier, with deciding which workloads are ready to move, which need refactoring, and how security, performance, cost, and day-to-day operations will change after the transition.
The strongest cloud migration companies tend to combine technical migration skills with architecture, DevOps, application modernization, infrastructure automation, and ongoing support. That broader capability matters because many migration problems appear at the boundaries between systems rather than inside a single platform.
A good provider should ultimately fit the shape of the project. Straightforward infrastructure moves call for a different skill set than legacy modernization, cloud-to-cloud migration, or large application re-architecture. Clear planning, realistic migration methods, and reliable post-migration support are often more important than simply offering the longest list of cloud technologies.
