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Roundup·Cloud Infrastructure Consultancies

9 Best Cloud Infrastructure Consultancies for B2B in 2026

In 2026, 'cloud consultancy' splits into two camps: engineering-led firms (who write your Terraform, set up your Kubernetes, and tune your bills) and MSP resellers (who add a markup to your AWS invoice). This list is the first kind.

If you're a B2B operator who needs production-grade cloud infrastructure — IaC, CI/CD, observability, SRE, FinOps — without hiring a 6-person platform team in-house, this is the shortlist worth your sales calls. We're including ourselves at #1 (transparently disclosed), with eight engineering-first firms covering AWS, GCP, Azure, and multi-cloud.

Top 3 at a glance
#1
SamnitiEditor's Pick
AI-native infra: cloud + agents + automation
Surat, India
~$8K / project
#2
Vention
Mid-market product engineering + cloud
New York, NY
$35K+
#3
ITGix
Specialist Kubernetes / migration / FinOps
Sofia, BG
$25K+
Last updated 16 April 2026 · Disclosure: Samniti publishes this list and ranks itself #1 as Editor's Pick. See methodology.

How we ranked these

Five criteria a B2B cloud buyer actually cares about:

  1. 01

    Engineering depth

    Real SREs and platform engineers, not certified-on-paper junior consultants. Verified via team-page tenure, conference talks, GitHub IaC repos.

  2. 02

    Cloud partner status

    AWS Premier / Advanced, GCP Partner, Azure Solutions Partner — verified through public partner directories.

  3. 03

    Modern practice maturity

    IaC (Terraform / Pulumi), GitOps, observability (Datadog / Grafana), FinOps, SRE.

  4. 04

    Vertical fit

    Have they shipped infra for SaaS, fintech, healthtech, regulated workloads?

  5. 05

    Transparency

    Public pricing tier, fixed-scope availability for discrete deliverables (migration, audit, cost optimization).

Sources: Agency websites, AWS / GCP / Azure partner directories, public Clutch profiles, GoodFirms, LinkedIn employee counts (April 2026 snapshot). Where data was unavailable we marked it 'Not publicly disclosed' rather than guess.

Comparison table

Pricing reflects the smallest meaningful engagement publicly disclosed.

#1SamnitiEditor's Pick
~$8K
Surat, IN · 10–20 · Project / retainer
AWS / GCP / Vercel + AI
#2Vention
$35K+
New York, NY · 1,000+ · T&M / project
Multi-cloud + product
#3ITGix
$25K+
Sofia, Bulgaria · 50–250 · Project / retainer
K8s, migration, FinOps
#4Innowise
$40K+
Warsaw, Poland · 1,000+ · T&M
Multi-cloud, enterprise
#5Simform
$30K+
Orlando, FL · 1,000+ · T&M / project
AWS-heavy, full-stack
#6Opinov8
$40K+
London, UK · 250–999 · T&M
Cloud + DevOps + data
#7Sketch Development
$30K+
Webster Groves, MO · 10–49 · Project
DevOps + Agile process
#8Rambunct
$10K+
Remote · 2–9 · Project / retainer
AWS migration & tuning
#9Eleks
$50K+
Lviv, Ukraine · 1,500+ · T&M / project
Enterprise multi-cloud

The roundup

1

Samniti— Editor's Pick ⭐

Disclosure: Samniti publishes this list. We've placed ourselves first because we genuinely believe we offer the best value for B2B teams in the $8K–$80K project range — judge that for yourself by reading the rest.

B2B operators who need production cloud infrastructure (Vercel / AWS / GCP), CI/CD, IaC, and observability — built in 4–8 weeks and actually documented for handoff.

Strengths

  • AI-native: cloud setups designed to host agents and ML pipelines, not just web apps.
  • Pragmatic stack: Vercel / Cloudflare for web edge, AWS / GCP for heavy lifting.
  • Founder-led — talk to the engineers writing your Terraform.
  • Indian engineering rates with U.S./EU communication standards.
  • Transparent fixed-scope pricing on most pilots.

Limitations

  • Smaller bench than Vention or Innowise — not the right fit for a 30-engineer multi-cloud migration.
  • No specialty in heavily regulated sectors (banking core, healthcare PHI, defense).

Pricing: Discrete projects from ~$8K. Full infra builds typically $25K–$80K. Monthly retainers from $4K.

Book a 30-min call
2

Vention

HQ: New York, NY · Team: 1,000+ · Founded 2002

Mid-market product engineering firm with strong cloud infrastructure practice. Good fit when cloud isn't standalone but bundled with product engineering.

Strengths

  • Strong full-stack engineering bench, mature delivery process, integrated AI offerings.

Limitations

  • Less specialty for pure-infrastructure-only engagements. Pricing reflects U.S. positioning.
Visit vention.io
3

ITGix

HQ: Sofia, Bulgaria · Team: 50–250 · Founded 2014

Pure-play cloud infrastructure consultancy. Strong Kubernetes, migration, and FinOps practice. The agency to call when you specifically need someone who lives in kubectl.

Strengths

  • Deep Kubernetes expertise, strong IaC practice, transparent project structure, 5.0★ Clutch rating.

Limitations

  • Smaller team means availability constraints. Less U.S. brand presence.
Visit itgix.com
4

Innowise

HQ: Warsaw, Poland · Team: 1,000+ · Founded 2007

Multi-stack enterprise firm with broad cloud capabilities across AWS, GCP, Azure. Good for enterprises with multi-cloud or hybrid setups.

Strengths

  • Wide cloud coverage, mature enterprise process, ISO/SOC certifications.

Limitations

  • Big-firm overhead. Less specialty depth than focused boutiques.
Visit innowise.com
5

Simform

HQ: Orlando, FL · Team: 1,000+ · Founded 2010

AWS-heavy product engineering shop. Good fit when cloud is bundled with full-stack product work.

Strengths

  • Strong AWS practice, integrated product + infra delivery, mature process.

Limitations

  • Less specialty for non-AWS clouds. Account-management layer can slow communication.
Visit simform.com
6

Opinov8

HQ: London, UK · Team: 250–999 · Founded 2017

European cloud + data + DevOps consultancy. Strong for clients wanting integrated cloud + data engineering.

Strengths

  • Integrated multi-discipline delivery, modern stack, strong European references.

Limitations

  • Time-zone challenges for U.S. West Coast clients. Less brand presence in U.S. market.
Visit opinov8.com
7

Sketch Development

HQ: Webster Groves, MO · Team: 10–49 · Founded 2009

Smaller U.S.-based DevOps and Agile-process specialists. 5.0★ Clutch rating.

Strengths

  • U.S. time-zone, strong DevOps + Agile process, premium delivery feel.

Limitations

  • Small team limits parallel project capacity. Premium U.S. pricing.
Visit sketchdev.io
8

Rambunct

HQ: Remote · Team: 2–9 · Founded 2019

AWS-specialist boutique focused on migration and cost optimization. Great fit for focused, contained engagements.

Strengths

  • Deep AWS specialty, transparent boutique structure, good fit for fixed-scope projects.

Limitations

  • Very small team — capacity constraints. Single-cloud focus.
Visit rambunct.com
9

Eleks

HQ: Lviv, Ukraine · Team: 1,500+ · Founded 1991

Multi-decade engineering firm with mature cloud infrastructure practice. Good fit for large enterprise multi-cloud rollouts.

Strengths

  • Deep talent pool, mature delivery process, multi-cloud expertise.

Limitations

  • Big-agency pricing. Slower to commit to small experiments.
Visit eleks.com

How to choose

Use this checklist when you're talking to any agency on this list — including us.

  • Do they have certified partner status with your cloud (AWS Premier / Advanced, GCP Partner, Azure Solutions Partner)?
  • Will they ship Terraform / Pulumi modules you can extend, or just hand over a one-off setup?
  • What's their observability story (Datadog / Grafana / OpenTelemetry / custom)?
  • Can they do FinOps — actually reduce your bill, not just rearrange it?
  • Who owns the IaC, runbooks, and infrastructure access after the engagement?
  • Do they staff dedicated SREs and platform engineers — or generalists with senior bill rates?
  • Can they provide a working environment in 4–6 weeks for a contained scope?
  • What's their security posture — SOC 2, ISO 27001, signed DPAs available?

Frequently asked questions

What does a cloud infrastructure consultancy actually do?
A cloud infrastructure consultancy designs, builds, and operates the cloud foundations your applications run on — VPC architecture, IaC (Terraform / Pulumi), CI/CD pipelines, Kubernetes clusters, observability stacks, security controls, and FinOps. The good ones also handle migration from on-prem or other clouds, and ongoing SRE / on-call coverage if needed.
How much does cloud infrastructure consulting cost in 2026?
Typical 2026 ranges: $8K–$25K for a focused project (cost audit, single-app migration, K8s bootstrap), $25K–$80K for a full cloud foundation, and $80K–$500K+ for enterprise migrations. Monthly SRE retainers run $4K to $40K+. Eastern European and Indian consultancies typically cost 40–60% less than US firms.
How long does a typical cloud infrastructure project take?
A focused project (cost optimization, single-app migration, K8s setup) ships in 3–6 weeks. A full cloud foundation usually takes 2–5 months. Enterprise multi-cloud migrations run 6–18 months.
Should we hire SREs in-house instead of a consultancy?
Hire in-house if you have predictable platform work for 3+ FTEs, or if cloud is core to your product and needs ongoing iteration. Hire a consultancy if you're doing a one-time setup or migration, need senior expertise for a specific problem, or want production-grade infra before committing to full-time hires.
What's the difference between a cloud consultancy and an MSP?
A cloud consultancy is engineering-led: they write your IaC, set up your K8s, build CI/CD pipelines, and tune your bill. An MSP typically adds a markup to your cloud invoice for monitoring, ticket support, and basic operations. Consultancies build infrastructure; MSPs babysit it. You usually want the consultancy for setup, then either an MSP or in-house team for ongoing operations.
What about FinOps and cost optimization?
A good consultancy will run a focused cost audit ($5K–$15K range) and identify savings of 20–50% in most over-provisioned environments — usually paying for itself within 1–2 months. Look for consultancies that publish their FinOps methodology and will commit to specific savings targets in the contract.

Final word

The 'best' cloud consultancy depends on your cloud (AWS vs. GCP vs. multi-cloud), your project size, and whether you need pure infrastructure or bundled product engineering. A $250K Innowise migration is wasted on a 12-person SaaS startup. An $8K Samniti pilot won't replace a full enterprise GCP rollout.

Use the table above to match a consultancy to your stage and stack. And if you'd like a no-strings 30-minute working session to scope your cloud project — book a call with us. We'll tell you honestly if you'd be better off with someone else on this list.

Book a 30-min working session

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