An AWS consulting firm can help you migrate workloads, modernize applications, work through infrastructure problems, and manage what you’re running in AWS. Most established firms offer some combination of these services, which is where comparing them gets less straightforward.
The firms differ in the kinds of AWS work they can deliver well. Moving a large application estate takes a different delivery model from modernizing a platform or taking responsibility for its day-two operations. There are also infrastructure problems where adding delivery capacity won’t get you very far until someone has worked out what’s wrong with the architecture.
We compared eight AWS consulting firms across four areas:
- Large-scale transformation
- Migration and modernization
- Managed AWS operations
- Engineering-led architecture and infrastructure work
For each, we looked at the work they’re strongest at, how they engage, and what their customer work tells us about where they fit.
1. Pelotech: AWS migration, modernization, and ongoing engineering
AWS Partner status: Advanced Tier Services Partner
Pelotech works with teams that need more than a clean handoff into AWS. That may mean modernizing workloads during the migration, rebuilding the infrastructure around them, or continuing to operate and improve the environment after go-live.
Keeping that work together gives us room to follow the engineering problem. If networking, identity, Kubernetes, security, compliance, or the architecture itself needs to change, we can address it as part of the engagement rather than carry the problem into AWS because it was outside the original scope.
Key services and strengths
- AWS migration and modernization
- AWS infrastructure engineering
- Kubernetes and platform engineering
- AWS GovCloud
- Infrastructure as code and automation
- Security and compliance engineering
- Cost optimization
- Ongoing AWS operations and support
Case Studies: UKi and Quantum Interface
UKi brought us in for AWS cloud expertise after its COO screened 40 service companies. During its move into AWS GovCloud, we traced hundreds of work stoppages to a third-party virtualization dependency and worked with UKi to replace it with a Kubernetes-based virtualization platform. The result was:
- 50% less manual work
- 3x higher availability
- 97% reduction in OD360 deployment time
- $500,000 in annual savings
For Quantum Interface, we rebuilt a manually configured AWS environment spanning commercial AWS and GovCloud into a Terraform-managed, multi-account architecture with federated identity, GitOps, and automated security and compliance controls. We still maintain the environment, which has run largely unattended for years without a dedicated AWS administrator.
When to choose Pelotech
Pelotech is worth shortlisting if:
- Your AWS migration is likely to involve replatforming or re-architecting workloads rather than moving them as-is.
- Kubernetes, infrastructure automation, GovCloud, security, or compliance are substantial parts of the project.
- You want the engagement to continue into AWS operations instead of planning a handoff immediately after deployment.
- You need engineers who can revisit the architecture when the original scope no longer makes technical sense.
When Pelotech isn't the right fit
We work with companies that want their AWS migration done right the first time, architected for long-term reliability, not patched together and rebuilt later. That said, Pelotech may not be the right fit if you:
- Have a finalized migration plan and aren't looking to validate the architecture. A staff augmentation team focused purely on execution might suit you better.
- Are selecting a migration partner primarily based on hourly rate. Rather than staffing projects with large teams of lower-cost engineers, Pelotech relies on small, senior-led teams to minimize rework, prevent costly AWS infrastructure missteps, and deliver results faster.
- Need a vendor that executes the migration brief as-is, no questions asked. Pelotech evaluates the underlying infrastructure challenges first and will recommend a different approach if that better addresses the real issue.
2. Accenture: Enterprise-scale AWS transformation
AWS Partner status: Premier Tier Services Partner | AWS MSP
Accenture is equipped for AWS programs that involve far more than moving infrastructure. Its AWS practice covers migration, application and data modernization, security, and ongoing operations, backed by the teams to coordinate that work across large application portfolios and business units.
Key services and strengths
- AWS migration and modernization
- Application and data modernization
- Cloud security
- Enterprise transformation
- Managed AWS operations
When to choose Accenture
You're dealing with a large application estate, several teams or business units, and dependencies that make the order and coordination of the migration as important as the technical work itself.
When Accenture isn't the right fit
If you have a contained AWS architecture or infrastructure problem and mainly need a small team of senior engineers.
3. Deloitte: AWS transformation for regulated enterprises
AWS Partner status: Premier Tier Services Partner | AWS MSP
Deloitte is a strong option when an AWS transformation needs to satisfy more than just the technical migration plan. Its AWS practice combines migration and modernization with security, risk, regulatory, and industry expertise, which is useful for organizations where those requirements shape how workloads can move and operate.
Key services and strengths
- AWS migration and modernization
- Application modernization
- Cloud security and compliance
- Data and AI
- Industry-specific cloud transformation
- Managed AWS services
When to choose Deloitte
Shortlist Deloitte when your AWS program has significant regulatory, security, or industry requirements that need to be addressed alongside migration and modernization, particularly across a large application portfolio.
When Deloitte isn't the right fit
If you need help with a defined AWS architecture, migration, or infrastructure issue.
4. Caylent: AWS-native migration and modernization
AWS Partner status: Premier Tier Services Partner
Caylent is an AWS-focused consultancy with a strong migration and modernization practice. Its work spans landing zones and workload migration through application modernization, DevOps, and cloud operations, making it a good fit for teams that want to modernize workloads as part of the move to AWS rather than treat migration as a standalone infrastructure project.
Caylent also uses automation across discovery, migration planning, infrastructure-as-code generation, testing, and migration waves. Its migration offering uses output-based pricing tied to workloads successfully migrated and validated.
Key services and strengths
- AWS foundations and migrations
- 2,000+ completed migrations
- Application modernization
- Infrastructure and DevOps modernization
- Cloud-native application development
- Data and analytics modernization
- Cloud operations and managed services
When to choose Caylent
Caylent makes sense for teams already committed to AWS that want a specialist to handle migration and modernization through a structured, automation-heavy delivery model.
When Caylent isn’t the right fit
For large transformation programs extending beyond AWS, a broader systems integrator may be a better choice.
5. Rackspace Technology: Managed AWS operations
AWS Partner status: Premier Tier Services Partner | AWS MSP
Rackspace Technology is a strong option for organizations that want a provider to take ongoing responsibility for their AWS environment. Its managed services cover day-to-day cloud operations, while its professional services practice extends into migration, modernization, infrastructure, security, and cost optimization.
Key services and strengths
- Managed AWS operations
- Always-on cloud support
- AWS migration and modernization
- Cloud security
- Infrastructure and DevOps
- Cost optimization and FinOps
- 2,200+ AWS certifications
When to choose Rackspace Technology
Ongoing AWS management is a substantial part of what you are buying, particularly if you want operational support alongside access to migration and engineering services.
When Rackspace isn’t the right fit
If you need a focused AWS architecture or migration project without ongoing managed services.
6. Mission Cloud: AWS migration and managed services
AWS Partner status: Premier Tier Services Partner | AWS MSP
Mission Cloud focuses exclusively on AWS, with services spanning migration, modernization, and ongoing cloud operations. Its migration practice follows AWS's Assess, Mobilize, and Migrate and Modernize framework, with the option to transition the environment into Mission's managed services after migration.
Key services and strengths
- AWS migration and modernization
- AWS Migration Competency
- Managed AWS operations
- 24/7 cloud operations support
- DevOps and infrastructure
- Cloud security
- Cost optimization
- Data, analytics, and machine learning
When to choose Mission Cloud
Mission Cloud is a strong fit when you want an AWS specialist that can take a migration from assessment and planning through modernization, with managed operations available if you need them afterward.
When Mission Cloud isn’t the right fit
For highly specialized architecture or infrastructure problems, look at specialist consultancies built around that kind of work.
7. TEKsystems Global Services: AWS migration and modernization at scale
AWS Partner status: Premier Tier Services Partner | Migration & Modernization Competency
TEKsystems Global Services is geared toward enterprise AWS migration and modernization. Its work covers assessment and migration planning through application, infrastructure, and data modernization, with a structured approach to evaluating large application portfolios.
Its application portfolio assessment can evaluate up to 250 applications in two to eight weeks, mapping each to an appropriate modernization path.
Key services and strengths
- AWS migration and modernization
- Application portfolio assessment
- Application modernization
- Infrastructure modernization
- Data and analytics
- DevOps and automation
- Security and compliance
When to choose TEKsystems Global Services
TEKsystems is particularly relevant when you have a large application portfolio to assess, sequence, migrate, and modernize rather than a handful of isolated workloads.
Where TEKsystems isn’t the right fit
Its portfolio-scale approach matters less for a narrowly scoped AWS engagement.
8. Booz Allen Hamilton: Federal and defense AWS transformation
AWS Partner status: Premier Tier Services Partner | Government Competency
Booz Allen Hamilton combines AWS engineering with deep federal, defense, and intelligence experience. Its AWS work spans migration, application modernization, DevOps, cybersecurity, and AI, including work with mission-critical systems in secure and regulated environments.
That experience is what distinguishes Booz Allen from the broader enterprise consultancies on this list. Its AWS practice is built around the security, compliance, and mission requirements that shape U.S. government cloud programs.
Key services and strengths
- AWS and GovCloud migration
- Application modernization
- DevOps and cloud-native engineering
- Cybersecurity and Zero Trust
- Government and defense cloud
- AI and machine learning
When to choose Booz Allen Hamilton
Booz Allen belongs on the shortlist when federal or defense requirements materially shape the architecture, security model, and delivery process.
Where Booz Allen isn’t the right fit
For commercial AWS projects without those constraints, its government-specific expertise carries less weight.
How to choose an AWS consulting firm
Before taking scoping calls, define what the consultancy will be responsible for, what stays with your internal team, and what success looks like after delivery. That gives you a more useful basis for comparing firms than AWS credentials or service lists alone.
For a shortlist, look at:
- Scope of the AWS work: A portfolio-wide migration needs different delivery capacity from modernizing a Kubernetes platform or fixing an infrastructure problem.
- What happens after migration: Decide whether your team will operate the environment, needs temporary support during the transition, or wants the consultancy to remain responsible for day-two operations.
- Relevant engineering depth: Look beyond a general AWS practice to the capabilities the project actually depends on, whether that is Kubernetes, networking, identity, security, GovCloud, data, or application modernization.
- Evidence from comparable work: Case studies are more useful when the architecture, constraints, and outcomes resemble your project. A recognizable customer logo alone tells you very little.
- Who will do the work: The expertise demonstrated during a sales or discovery call should match the seniority and technical depth of the team assigned after the contract is signed.
By the time you speak with providers, you should be able to test them against the same problem rather than compare service catalogs. Give each firm enough detail about the current architecture, constraints, and desired operating model to explain what it would change, what it would leave alone, and why.
Choosing the right AWS consulting partner
By the time you have a shortlist, the question is less about which firm has the broadest AWS practice and more about which team you trust with the specific decisions your project will require.
Use the scoping call to test that. Bring the architecture, constraints, and expected outcomes, and pay attention to the questions the engineers ask, the assumptions they challenge, and who will actually be doing the work.
A good partner should leave you with a clearer view of the problem and the engineering decisions ahead, even before the engagement begins.
