Top Cloud Consulting & SI Companies

Geniusee is a software and product development company established in 2017 in Kyiv, Ukraine with engineering headquarters in Poland and Ukraine and clients from all over the world, including FinTech, EdTech, and Retail projects. The team is certified as AWS Consulting Partner and Advanced Tier Service Partner with AWS Lambda Service Delivery, providing end-to-end software delivery which includes cloud architecture, migration, and complex solutions implementation. Geniusee is trusted by startups and enterprises alike for its reliable and secure cloud implementations, as it's backed by ISO 9001:2015 and ISO 27001 certifications, and previously delivered 180+ projects.

Itransition is a global IT company based in Denver and founded in 1998. It provides cloud consulting and system integration services, including cloud migration, architecture design, and managed cloud infrastructure for enterprise clients in industries such as healthcare, finance, and manufacturing. As a Microsoft partner with more than 3,000 engineers across 40 countries, the company uses Azure to build secure, scalable cloud platforms that help organizations improve operations and reduce infrastructure costs. Trusted by companies like PepsiCo and Lloyd’s Register, Itransition is known for delivering reliable, enterprise-level cloud solutions along with long-term support.

Innowise is an international full-cycle software development company established in 2007. The company provides cloud consulting and system integration services to enterprises across industries such as healthcare, fintech, and manufacturing, and operates in more than 30 countries. With a team of over 3,500 professionals and ISO-certified processes, Innowise brings deep expertise in areas such as cloud migration, DevOps, DevSecOps, and cloud-native architecture. The company helps organizations modernize their infrastructure, lower operational costs, and build scalable digital platforms that support long-term growth. Recognized on the IAOP Global Outsourcing 100 list for four consecutive years and maintaining a 93% client return rate, Innowise is trusted for its reliable delivery, precise execution, and ability to quickly integrate into projects—often within just a few days.

Intuz is a San Francisco-based technology company founded in 2008, offering enterprise cloud modernization and system integration services — including AWS, Azure, GCP, Kubernetes, CI/CD, and Infrastructure as Code — for Fortune 500 clients and startups across healthcare, fintech, logistics, and e-commerce in 40+ countries. As an AWS Consulting Partner with a 99.9% uptime SLA, 700+ products shipped, and an 80%+ client retention rate at 3+ years, Intuz delivers cloud infrastructure that performs reliably at scale. Clients value the team for technical depth, rapid deployment, and cloud solutions that reduce costs and support long-term business growth.

NaNLABS is a software development company based in Argentina that was established in 2013 and is headquartered in La Plata (Buenos Aires), with offices in the U.S. and France. The team develops modern cloud data architectures and real-time streaming and processing systems, assisting clients to attain low-latency, instant insights that enables time-sensitive business choices throughout industries such as SaaS and cybersecurity. Established as an English speaking entity, primarily serving clients in the United States and Europe, NaNLABS is known for being "small enough to care and big enough to get the job done.

SoftKraft is a Bielsko-Biała, Poland-based software and cloud consulting company founded in 2015, designing and engineering cloud-based data processing solutions — including AWS and GCP architectures, cloud data pipelines, scalable API infrastructure, and cloud-native SaaS platforms — for startups and SMEs across North America and Europe. ISO 27001-certified with a senior architect approach to cloud security and resilience, SoftKraft delivers cloud infrastructure that is secure, scalable, and optimized for AI readiness. Rated 4.9/5 on Clutch across 20+ verified reviews, clients value the team for asking the right questions before recommending architecture and delivering solutions that grow with business needs.

Protagonist, a Tallinn, Estonia-based Cybersecurity Company, offers cloud consulting and systems integration services to cloud-native SMBs and pre-enterprise businesses, such as cloud security architecture, cloud compliance, and secure cloud infrastructure design. Building on enterprise-grade security processes, and with a startup-delivery methodology, Protagonist embeds cloud security thinking into cloud architecture and infrastructure decisions. Clients appreciate the firm's ability to provide cloud consulting along with security expertise, making it a priority to build and operate cloud environments with security as a key design consideration instead of an afterthought.

NopalCyber is a New York based cybersecurity firm specializing in cloud consulting and systems integration services, such as cloud security architectures, secure cloud configuration, and cloud compliance advisory services, for businesses looking to bring the security they've traditionally maintained on-premise to their cloud environments. NopalCyber combines cloud security expertise with its penetration testing and vulnerability assessment services, having a team of 10–49 members and achieving 100% client satisfaction. The company is appreciated by clients for its great communication, affordable services and cloud security consulting offerings which deliver ongoing support and security enhancements to data protection.

First Class Networks is an IT and cybersecurity firm in Woburn, MA that offers cloud consulting and cloud systems integration to businesses interested in cloud migration, cloud optimisation, and cloud infrastructure management that are designed to be secure from the ground up. First Class Networks provides cloud consulting with the same level of exceptional support, on-time delivery and cultural fit that its clients have come to expect from all of its IT and cyber security services, which include 2–9 person teams, $150–$199 hourly rate and 100% positive client feedback. The company is valued for its personalized approach and cloud consulting that guarantees security and reliability are at the core of all cloud engagements.