Last Updated: June 2026
You've been planning the cloud migration for months. The architecture diagrams are done, the budget is approved, and the timeline is set. What you haven't figured out is who's actually going to move it all without breaking something in production.
That's the real problem. Not the cloud itself — choosing who gets your systems.
McKinsey estimates that the average enterprise runs 900+ applications, most of which weren't designed for the cloud. Moving them requires more than technical execution. It requires judgment — which workloads to move, which to refactor first, and which ones to leave alone.
The companies on this list were chosen because they deliver migrations. Not because they have the best sales decks.
Key Takeaways
- The right cloud migration partner depends on your cloud target — AWS, Azure, and GCP require different partner specialisations.
- Cloud migration strategy matters more than tooling; approach it as a series of per-system decisions, not a single event.
- Mid-size firms often deliver better value than enterprise IT giants for migrations under $2M in scope.
- Post-migration optimisation — FinOps, performance tuning, security hardening — is where most engagements under-deliver.
What Most Teams Get Wrong About Cloud Migration
Cloud migration isn't a lift. It's a series of decisions — one per system, sometimes one per service.
Most teams that run over budget made the same mistake: they treated cloud migration as a single event rather than a phased cloud migration strategy.
A good migration assessment starts with the 6 Rs — rehost, replatform, repurchase, refactor, retire, or retain. Not every system gets the same answer. Some workloads move as-is. Others need refactoring before they're ready to move. Some are better left on-premise entirely.
Here's the thing: a cloud migration partner who agrees to a full scope before completing a discovery phase is telling you something important. Either they already know what you need (unlikely) or they're optimising for getting the contract signed. Ask any partner you're evaluating to walk you through their discovery methodology before you see a statement of work.
How We Evaluated These Cloud Migration Companies
This list reflects editorial research based on publicly verifiable criteria — not vendor submissions or paid placement.
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Cloud platform depth: Demonstrated capability across AWS, Azure, and GCP — not just a single vendor partnership.
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Migration methodology: Evidence of structured cloud migration strategy: discovery, assessment, phased execution, and post-migration optimisation.
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Industry experience: Projects in at least two verticals relevant to mid-market and enterprise buyers.
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Client feedback: Clutch and GoodFirms ratings; quality and recency of reviews.
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Legacy modernisation integration: Ability to combine cloud migration with application modernisation — not treat them as separate tracks.
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Post-migration support: Defined handover or managed services capability beyond deployment handoff.
Companies at a Glance
10 Cloud Migration Companies Worth Evaluating
1. Classic Informatics
Classic Informatics approaches cloud migration as a modernisation problem — not just a logistics one. The difference matters. When you move a system that hasn't been touched in eight years, migrating it as-is usually means inheriting the same bottlenecks in a newer environment.
Classic Informatics works with mid-market and enterprise clients across healthcare, manufacturing, fintech, and SaaS. The team combines cloud migration services with legacy modernisation in a single engagement track — so you're not coordinating two firms to solve what's really one problem. With 3,000+ projects delivered across 30+ countries and 95% client retention, their default position is architecture-first before any workload moves.
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AWS, Azure, and GCP migration planning and execution
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Legacy application assessment and modernisation
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Cloud-native architecture and microservices transition
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DevOps pipeline setup and CI/CD implementation
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Post-migration performance optimisation and FinOps
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SaaS platform buildout on cloud infrastructure
If you're moving systems with meaningful technical debt, or need a partner who can tell you what to refactor before the migration begins, Classic Informatics brings that depth without overengineering simpler workloads.
2. Simform
Simform is a strong option if your primary cloud target is AWS and your workloads skew toward cloud-native applications. Their AWS migration services practice is one of their most mature offerings, and they've built a track record on clean architecture decisions for React and Node.js systems at scale.
US and India-based, Simform works with startups scaling infrastructure and mid-market teams making their first significant cloud move. Their discovery and assessment process runs before timeline commitments — which is the right order.
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AWS migration services and cloud-native development
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Kubernetes and container orchestration
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Serverless architecture design
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Multi-cloud setup and management
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DevOps automation and infrastructure-as-code
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Cloud security and compliance review
Teams with mixed AWS and GCP environments may find Simform less experienced on the GCP side. For AWS-primary workloads, they're one of the more reliable options on this list.
3. N-iX
N-iX is a European technology services firm with a strong cloud infrastructure practice for companies operating in regulated industries. If compliance, data residency, and security architecture are core constraints — financial services, healthcare, or manufacturing — N-iX has documented experience navigating those requirements across both AWS and Azure.
Their cloud migration approach involves structured assessment phases and defined migration runbooks, a style suited to enterprise teams with complex stakeholder approval chains.
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Cloud infrastructure design and migration
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Regulated industry cloud deployments (fintech, healthcare)
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Data engineering and cloud data platform setup
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Security architecture and compliance frameworks
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DevOps transformation and site reliability engineering
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Distributed team augmentation for cloud-specific roles
N-iX engagements tend toward the larger end of mid-market. Early-stage teams or those with limited cloud runway may find the engagement structure more than they need.
4. CloudThat
CloudThat is an AWS Advanced Consulting Partner and Microsoft Solutions Partner with a specific strength in cloud migration services and cloud skills development. For organisations running both a migration project and an internal enablement programme — upskilling their teams on AWS or Azure — CloudThat can deliver both tracks in parallel.
India-headquartered with an active presence across South Asia and APAC, CloudThat has Clutch reviews spanning education, IT services, and professional services clients.
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AWS and Azure migration planning and execution
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Cloud training and certification enablement
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FinOps and cloud cost optimisation
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Managed cloud services post-migration
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DevOps and automation toolchain setup
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Data migration to cloud platforms
If cloud skills training isn't part of your requirement, CloudThat's training-heavy model may include more than you need. Pure migration execution teams may find a sharper fit elsewhere.
5. Kellton Tech
Kellton Tech is a mid-sized firm with delivery in India and the US, covering digital transformation, data, and cloud across retail, healthcare, and financial services. Their cloud migration strategy work is grounded in sector-specific domain knowledge, which shows up in projects where generic approaches tend to fall short.
Their strength is multi-cloud orchestration — they're comfortable designing environments where AWS, Azure, and GCP coexist, which is increasingly common for enterprises that have grown through acquisition.
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Multi-cloud migration and orchestration
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Cloud migration strategy and roadmap development
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Enterprise application modernisation on cloud
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Data and analytics platform migration
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IoT and edge cloud integration
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Managed services and SRE
Kellton Tech works best for enterprise clients who have some cloud maturity and need a structured cloud migration partner to consolidate a fragmented environment.
6. Bacancy Technology
Bacancy Technology is an execution-focused cloud services firm based in India with a record of fast delivery on cloud-native application builds and smaller-scale migrations. If your workloads are relatively modern — React, Node.js, Python — and you need to move quickly without heavy governance overhead, Bacancy's model is built for that.
They're a strong match for SMBs and scale-up companies that don't need the layered approval structures of a large engagement.
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Cloud-native application development and migration
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AWS and Azure deployment setup
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RESTful API and microservices migration
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Docker and Kubernetes container management
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CI/CD pipeline configuration
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Backend infrastructure migration
Bacancy works best for companies with contained migration scopes. Large enterprise workloads with deep legacy dependencies may need a partner with a more structured methodology.
7. ELEKS
ELEKS is a Ukraine-based firm with a significant European and North American client base, known for complex cloud architecture engagements for large enterprises. Their strongest use case is the design-first migration — where the architectural blueprint is agreed upon before any workloads move.
For enterprises in fintech, insurance, or manufacturing who need a cloud migration partner that will challenge their assumptions before agreeing to a scope, ELEKS fits that advisory profile.
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Cloud architecture design and technical consulting
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Large-scale enterprise cloud migrations
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Fintech and regulated industry cloud deployments
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Legacy system decoupling and modernisation
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Cloud-native platform engineering
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Security and compliance on cloud infrastructure
ELEKS isn't the fastest option on this list. Their strength is depth — a fit for migrations where getting the architecture wrong would be genuinely expensive to fix.
8. Svitla Systems
Svitla Systems is a US-Ukraine firm with a track record in mid-enterprise cloud migrations, particularly where DevOps transformation and data engineering are part of the scope. They're a practical choice for companies that have stalled internal cloud initiatives and need external execution capacity to get moving again.
Mid-range team size means they're responsive and can sustain engagements across multiple quarters without losing momentum.
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Cloud infrastructure migration and setup
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DevOps transformation and CI/CD implementation
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Data platform migration and engineering
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AWS and Azure managed services
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Cloud monitoring and incident management
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QA and testing for cloud deployments
Svitla works well as a long-term cloud migration partner for teams with phased migration roadmaps spanning 12–24 months.
9. Netguru
Netguru is a Polish product and technology firm with a lean toward product-led companies — SaaS businesses, fintech startups, and digital-native brands. Their cloud practice integrates tightly with product design and development, making them a good fit when the migration is inseparable from a product rebuild or rearchitecting.
Active in Europe with growing US presence, Netguru's Clutch reviews reflect consistent delivery in fintech, travel, and health tech sectors.
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Cloud-native product development
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AWS and GCP cloud migration and architecture
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API platform and microservices migration
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Mobile and web application cloud backend migration
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Data infrastructure setup on cloud
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Product strategy integration with cloud architecture
Netguru is best for product-centric organisations. If your migration is purely infrastructure-led with no product change component, their model is wider than what you need.
10. Bespin Global
Bespin Global is a South Korean managed cloud services provider with a strong presence in APAC and the Middle East. As an AWS Premier Partner and Microsoft Gold Partner, they're purpose-built for post-migration managed services — ongoing cost optimisation, FinOps governance, and cloud operations management.
For enterprise teams in Asia-Pacific who need a migration partner that will also run the environment after go-live, Bespin Global's model fits that requirement directly.
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AWS and Azure enterprise migration
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Managed cloud services and 24/7 operations
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FinOps and cloud cost governance
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Multi-cloud monitoring and management
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Cloud security and compliance operations
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Disaster recovery and business continuity planning
Bespin Global's core strength is managed services post-migration. For pure migration execution without ongoing managed services, other firms on this list are a stronger fit.
How to Choose the Right Cloud Migration Partner
Every company on this list can move workloads. The question is whether their model matches your situation.
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Clarify your cloud target first: AWS, Azure, GCP, and hybrid environments require different partner specialisations. Match the partner to the cloud, not just to the category.
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Evaluate their cloud migration strategy approach: Any partner who scopes a project before completing discovery is optimising for closing the deal. Ask specifically how they handle legacy systems before migration begins.
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Confirm post-migration commitment: Many migrations run over budget in the 90 days after go-live. Know who handles monitoring, performance tuning, and cost governance before you sign.
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Match engagement size to project size: A firm running a large enterprise practice won't prioritise a $300K migration. Choose a cloud migration partner whose typical project profile looks like yours.
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Ask for migration-specific case studies: Generic software development references don't reveal how a partner handles mid-migration complications. Ask for examples where something changed during execution and how they handled it.
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Verify FinOps capability: Moving to the cloud without cost governance often produces bills 30–40% higher than projected. Your migration partner should treat FinOps as part of the engagement, not an add-on.
Let's Wrap This Up!
Choosing the wrong cloud migration partner doesn't show up on the invoice immediately. The rework, the delayed go-live, the re-architecture you fund six months later — those costs compound quietly.
The companies on this list serve different buyers. Bespin Global is a post-migration operations firm. Netguru is for product-first companies. N-iX is for regulated industry complexity. None of them are interchangeable.
The real question isn't "who's best?" It's "who fits my workloads, my cloud target, and my timeline?"
If you're moving systems with technical debt, SaaS applications that need rearchitecting, or enterprise workflows that need to stay live during migration, Classic Informatics brings cloud migration services and legacy modernisation into a single engagement — so you're not paying two firms to solve what's really one problem. Talk to our team whenever you're ready.
