Top Cloud Consulting & SI Companies

Cloud consulting and systems integration (SI) firms plan and carry out the move of applications and data to AWS, Azure or Google Cloud, then connect it to the systems a company still runs on premises. The work spans readiness assessments, landing zone design, migration waves, identity and access, cost governance, and the integration that keeps ERP, CRM and data platforms talking. IT directors hire them when a data center lease ends, when a merger leaves two estates to combine, or when cloud bills climb.

Compare the firms here on partner tier with your chosen hyperscaler, on reference migrations of similar size and regulatory load, on whether they hand back infrastructure as code, and on reviews that talk about cost after go-live.

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We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

10,000 Companies

List of the Best Cloud Consulting & SI Agencies

ePossible
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An IT service provider catering to small and medium-sized enterprises since 1998, we provide a range of technology solutions, including Managed IT Services, Managed Cybersecurity Services, Business Continuity, and Cloud Consulting.
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Irvine, California, Us
Services Provided
20% Cybersecurity Assessments & Hardening
30% Managed IT Services
15% IT Staff Augmentation
35% Cloud Consulting & SI
AI Summary
“ePossible is an IT service provider since 1998 specializing in Managed IT, Cybersecurity, Business Continuity, and Cloud Consulting for small and medium-sized businesses.”
China Telecom Americas Corporation
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China Telecom (Americas) Corporation (CTA) delivers tailored, affordable, and comprehensive network and communication solutions to a varied clientele. As a prominent facility-resale private carrier with exclusive connections to providers in Asia and the Americas, we provide an extensive array of com
Highlights
250-999
Employees
Herndon, Virginia, Us
Services Provided
35% Cloud Consulting & SI
15% Other IT Consulting and SI
20% Cybersecurity Assessments & Hardening
30% Managed IT Services
AI Summary
“China Telecom Americas Corporation offers comprehensive network, communication, and data center solutions across the Americas and Asia, serving multinational clients with tailored, reliable connectivity services.”
citrus - cs communication systems GmbH
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Citrus ist der ideale Partner für Unternehmen, die eine zuverlässige IT- und Kommunikationsinfrastruktur wünschen – ohne ständig neue Baustellen, unerwartete Probleme oder das Warten auf Rückmeldungen. Wir konzentrieren uns auf die wesentlichen Elemente des Tagesgeschäfts: stabile Systeme, regelmäßi
Highlights
10-49
Employees
Marburg, Hesse, De
Services Provided
30% Cybersecurity Assessments & Hardening
20% Managed IT Services
15% Other IT Consulting and SI
35% Cloud Consulting & SI
AI Summary
“Citrus provides integrated, reliable IT and communication infrastructure services, including system maintenance, cloud telephony, and proactive support, enabling efficient and stable business operations.”
Cywest Communications
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Cywest Communications stands out as a top network and cloud service provider in the United States. The company’s network integrates security, performance, and resilience, aiming to deliver a broad network to businesses via any telecom carrier. Its Intelligently Scalable Virtual Network (ISVN) operat
Highlights
10-49
Employees
Lake Forest, California, Us
Services Provided
35% Cloud Consulting & SI
15% Other IT Consulting and SI
30% Cybersecurity Assessments & Hardening
20% Managed IT Services
AI Summary
“Cywest Communications is a leading US network and cloud service provider offering scalable, secure, and high-performance virtual networks across 50+ markets with comprehensive infrastructure and support.”
HAYNE Cloud
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The HAYNE.cloud team, based in the UK, boasts over ten years of experience in providing dependable, scalable, and secure managed cloud solutions on the Microsoft Azure platform. We adopt a personalized approach with our clients, taking the time to understand your business and objectives to tailor th
Highlights
10-49
Employees
Stratford-upon-Avon, England, Gb
Services Provided
15% BI & Big Data Consulting & SI
35% Cloud Consulting & SI
30% Cybersecurity Assessments & Hardening
20% Managed IT Services
AI Summary
“HAYNE.cloud delivers personalized, secure, and scalable managed cloud solutions on Microsoft Azure, acting as an extension of clients' IT teams to optimize and maintain cloud infrastructure.”
LF Companies LLC
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LF Companies is a managed IT and telecommunications provider located in the Twin Cities, catering to small and medium-sized businesses throughout Minnesota. Established by Michael Liddell, we emphasize Black and LGBTQ+ leadership in a sector that requires greater diversity and options. Our aim is to
Highlights
2-9
Employees
Saint Paul, Minnesota, Us
Services Provided
20% Cybersecurity Assessments & Hardening
30% Managed IT Services
35% Cloud Consulting & SI
15% Unified Communications Consulting & SI
AI Summary
“LF Companies LLC provides managed IT, telecommunications, and web services to Minnesota SMBs, emphasizing diversity, personalized support, and cost-effective solutions to streamline business technology.”
Computaris International
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Computaris is the European branch of R Systems, a global leader in digital transformation that offers AI-driven solutions to clients across various sectors, utilizing an extensive array of technology and AI/analytics services. For over 27 years, we have been supporting organizations with 16 delivery
Highlights
$10,000+
Min Project Size
250-999
Employees
Bucuresti, Bucuresti, Ro
Services Provided
20% Mobile App Development (iOS & Android)
30% Custom Web Application Development
35% Cloud Consulting & SI
15% IT Staff Augmentation
AI Summary
“Computaris International, part of global leader R Systems, provides AI-driven digital transformation solutions across sectors with over 2750 professionals in 16 delivery centers worldwide.”
Algesoft
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Algesoft is a digital transformation agency specializing in the design and development of websites, applications, and customized digital solutions. Founded by former startup entrepreneurs who connected with the global startup community, the team learned to optimize every resource for maximum results
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Seoul, Seoul, Kr
Services Provided
30% Mobile App Development (iOS & Android)
20% Custom Web Application Development
35% Cloud Consulting & SI
15% AI Strategy & Roadmap Consulting
AI Summary
“Algesoft is a digital transformation agency specializing in tailored website and application development, delivering innovative, affordable software solutions to drive business growth with an entrepreneurial focus.”
DotStark Technologies LLP
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If you're in search of a company that guarantees consistent quality and punctuality, you've come to the right place. DotStark Technologies is an Agile web development firm specializing in Kentico projects, primarily utilizing MVC architecture. As a managed Microsoft Partner and Kentico Partner, we c
Highlights
$25,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Jaipur, Rajasthan, In
Services Provided+2 Services
17% E-Commerce Development
10% Custom Web Application Development
5% Mobile App Development (iOS & Android)
2% Blockchain & Web3 Development
AI Summary
“DotStark Technologies LLP is an Agile web development firm specializing in Kentico MVC solutions, offering in-house expertise as a Microsoft and Kentico Partner to deliver quality cloud migration services.”
HCube Tech Private Limited
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H Cube Tech Pvt Ltd is a company committed to excelling in the transformation of applications as it strives to establish a strong presence in the web and mobile application market. Over the past five years, we have successfully completed more than 45 projects and are making significant strides in mo
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Ahmedabad, Gujarat, In
Services Provided+9 Services
5% Progressive Web App (PWA) Development
10% Mobile App Development (iOS & Android)
4% E-Commerce Development
4% CMS Development & Customization
AI Summary
“H Cube Tech Pvt Ltd specializes in web and mobile application development, delivering over 45 projects in five years with a skilled remote team supporting client needs.”

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Top Cloud Consulting & SI Companies

List of the Best Cloud Consulting & SI Agencies

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