Most companies no longer ask whether to use the cloud. They ask why the bill keeps growing, why the migration stalled at 60%, and who will run the platform after the consultants leave. A good cloud consulting company answers those questions. A weak one delivers a landing zone and a slide deck.
This list covers ten cloud consulting companies worth shortlisting in 2026, grouped by the platform and scale they fit, with the market changes that should shape your choice.
How We Chose the 10
- Platform depth: top-tier partner status and specialisations on AWS, Microsoft Azure or Google Cloud.
- Breadth of services: strategy, migration, modernisation, data and AI, security, and managed services.
- Cost and operations discipline: FinOps practice and the ability to run what they build.
- Scale and stability: size, ownership and recent changes.
- Verifiability: public partner status, references and track record.
Order reflects breadth and evidence. It is editorial judgement, not a precise score, and the right partner for you depends heavily on your platform.
The Top 10 Cloud Consulting Companies
1. Accenture
Accenture runs dedicated business groups with AWS, Microsoft (largely through Avanade) and Google Cloud, and its cloud practice spans strategy, migration, industry platforms and managed operations. For an enterprise moving thousands of workloads across several business units and countries, few firms can match its capacity.
Best for: large enterprises running multi-platform, multi-year cloud programmes.
2. Deloitte
Deloitte combines cloud engineering with its consulting, risk and regulatory expertise, which matters in financial services, government and other regulated sectors where the cloud decision is also a compliance decision.
Best for: regulated enterprises that need cloud strategy and controls together.
3. Avanade
Seattle-based Avanade was founded in 2000 as a joint venture between Accenture and Microsoft and focuses entirely on the Microsoft ecosystem: Azure, data and AI, Microsoft 365 and Dynamics. If your estate is Microsoft-centric, it is the specialist to compare everyone else against.
Best for: Microsoft-centric organisations moving to and modernising on Azure.
4. SADA (an Insight company)
SADA built its reputation as one of the largest dedicated Google Cloud partners and a multiple-time Google Cloud Partner of the Year. Insight Enterprises acquired it in December 2023 for $410 million, adding around 850 people and broadening its multicloud reach.
Best for: organisations committed to Google Cloud, including data and AI workloads.
5. Caylent
Founded in 2015, Caylent is an all-in AWS Premier Tier partner focused on cloud-native engineering, data and generative AI on AWS. Its 2025 acquisition of Trek10 added a CloudOps platform and round-the-clock managed services.
Best for: AWS-first companies building cloud-native and generative AI applications.
6. Mission Cloud (part of CDW)
Mission Cloud is an AWS Premier Tier partner known for migrations, managed services and cost optimisation for mid-sized companies, and signed a multi-year strategic collaboration agreement with AWS in 2023. CDW acquired it to serve as its dedicated AWS practice.
Best for: mid-market companies that want AWS migration and managed operations from one partner.
7. 2nd Watch
Seattle-based 2nd Watch, founded in 2010, is a long-standing AWS partner that also works across Azure, with cloud migration, managed services and a data and analytics practice strengthened by its 2022 acquisition of Aptitive.
Best for: companies combining cloud migration with data and analytics modernisation.
8. Rackspace Technology
San Antonio-based Rackspace offers multicloud managed services across AWS, Azure and Google Cloud, plus private cloud and hosting. Its strength is operations: running mixed estates day to day when you do not want to build that team yourself.
Best for: companies that want to outsource ongoing operation of a mixed cloud estate.
9. DoiT
DoiT combines multicloud consulting and support for AWS, Google Cloud and Azure with its own cost and operations software. Recent acquisitions such as PerfectScale, for Kubernetes optimisation, show its focus: engineering-led cloud cost control.
Best for: engineering-led companies that want help controlling cloud and Kubernetes costs.
10. Slalom
Seattle-based Slalom is a consulting firm with a local-market model and strong partnerships with AWS, Microsoft, Google Cloud and Salesforce. It tends to embed with client teams and focus on capability building alongside delivery.
Best for: companies that want hands-on, locally based consultants who upskill their teams.
At a Glance
| # | Company | Primary platforms | Strongest fit |
|---|---|---|---|
| 1 | Accenture | AWS, Azure, Google Cloud | Enterprise multi-platform programmes |
| 2 | Deloitte | AWS, Azure, Google Cloud | Regulated enterprises |
| 3 | Avanade | Microsoft Azure | Microsoft-centric estates |
| 4 | SADA (Insight) | Google Cloud | Google Cloud, data and AI |
| 5 | Caylent | AWS | Cloud-native and generative AI |
| 6 | Mission Cloud (CDW) | AWS | Mid-market migration and managed services |
| 7 | 2nd Watch | AWS, Azure | Migration plus data modernisation |
| 8 | Rackspace Technology | Multicloud, private cloud | Outsourced cloud operations |
| 9 | DoiT | AWS, Google Cloud, Azure | Cloud and Kubernetes cost control |
| 10 | Slalom | AWS, Azure, Google Cloud | Embedded, capability-building consulting |
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What Changed in Cloud Consulting
Consolidation. Insight bought SADA, CDW bought Mission Cloud, and Caylent bought Trek10. Resellers and larger integrators are buying specialist partners to own the relationship with the hyperscalers. For buyers that can mean more scale, but also changes in account teams and priorities, so ask.
Cost became the headline. After years of growth-first migration, finance teams now ask cloud leaders to explain the bill. FinOps, the practice of making engineering teams accountable for cloud spend, has moved from a niche to a standard deliverable.
VMware forced decisions. Licensing changes after Broadcom's acquisition of VMware pushed many companies to accelerate or re-plan migrations. A good partner models the options, including staying, re-platforming and refactoring, rather than defaulting to a fast lift-and-shift that carries old problems into a new bill.
AI workloads arrived. Generative AI platforms on Amazon Bedrock, Microsoft's Azure AI services and Google Vertex AI are now a common reason to engage a cloud partner, and they bring new cost and data governance questions.
How to Vet a Cloud Consulting Partner
- Show us a migration that went wrong and what you did. Every experienced partner has one.
- What is your FinOps practice? Ask for tagging standards, budget alerts and a measured savings result from a past client.
- Will everything be infrastructure as code in our repositories? The answer should be yes.
- What vendor funding can you access for us? Migration programmes and credits can offset real cost.
- Who runs this after go-live? You, them or a mix, and what the handover includes.
- How do you secure the landing zone? Identity, network segmentation, logging and guardrails from day one.
If you are building a cloud-native product rather than migrating an estate, our overview of cloud application development covers what that work involves, and our article on whether your business needs cloud development is a useful primer. If you need a team to own the infrastructure long term, see how we approach DevOps engineering.
The Bottom Line
Match the partner to your platform and scale. Accenture and Deloitte lead for enterprise-wide, multi-platform programmes. Avanade is the Azure specialist, SADA the Google Cloud specialist, and Caylent, Mission Cloud and 2nd Watch strong AWS options. Rackspace and DoiT suit ongoing operations and cost control, and Slalom suits teams that want consultants alongside them. Whoever you choose, make cost control and handover part of the scope, not an afterthought.
If you are planning a cloud-native build and want an engineering view on architecture or partner choice, tell us what you are working on.
Independent editorial list by the Northell editorial team. No company paid for inclusion, and Northell is not included. Company facts reflect public information available at the time of writing; partner tiers, ownership and offerings change, so confirm current details directly with each company and the relevant cloud provider.
