Top IT Consulting and Systems Integration (SI) Companies

Specialist IT consulting and SI covers integration and advisory work outside platform categories such as ERP, CRM, cloud or BI: security consulting and penetration testing, independent software testing, integration of niche systems such as HR, payroll or point of sale, architecture reviews and technology due diligence. A business comes here when two systems must talk and no vendor owns the problem, when an auditor or customer demands an independent assessment, or when a technology decision needs outside advice.

The firms here differ widely, so compare them on the system pairs and assessment types they have delivered, look for reviews that describe a project like yours, and match the minimum project to an assessment or a full integration.

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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 Other IT Consulting and SI Agencies

Data Centre Professionals Ltd.
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Data Centre Professionals Ltd, commonly referred to as Dacpros, is a prominent smart-hand service provider in the UK, known for its proactive and innovative strategies. Our team of expert engineers works closely with remote technical teams to design, implement, and uphold infrastructure that meets t
Highlights
$50-99/hr
Avg Hourly Rate
2-9
Employees
London, England, Gb
Services Provided
50% Managed IT Services
50% Other IT Consulting and SI
AI Summary
“Data Centre Professionals Ltd (Dacpros) delivers proactive smart-hand services across the UK, combining expert engineering and comprehensive operations to ensure efficient, scalable, and reliable data infrastructure management.”
BetterQA
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We Create QA Tools That Others Can Only Envision Your QA team may take 3 hours to document each bug, but ours accomplishes it in just 5 minutes. BetterQA, an independent QA service provider based in Cluj-Napoca, Romania, has a team of over 50 engineers dedicated to ensuring your code performs flaw
Highlights
$5,000+
Min Project Size
50-249
Employees
Cluj-Napoca, Cluj, Ro
Services Provided
50% QA & Software Testing
50% Other IT Consulting and SI
AI Summary
“BetterQA, a Romanian QA firm, develops proprietary AI-driven tools like BugBoard to deliver rapid, accurate software testing and consulting services for diverse enterprise and SaaS clients.”
Berezha Security Group
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Berezha Security Group is a consulting firm focused on cybersecurity, covering areas such as application security, penetration testing for networks and social engineering, cybersecurity advisory services, and professional training. Established in 2014, Berezha has completed over 120 projects for mor
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Kyiv, Ua
Services Provided
50% Cybersecurity Assessments & Hardening
50% Other IT Consulting and SI
AI Summary
“Berezha Security Group, established in 2014, offers expert cybersecurity consulting, application security, penetration testing, and training across diverse industries, emphasizing transparency and proactive defense.”
ZJF IT Services LLC
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ZJF IT Services LLC, located in New York, is an IT deployment and field services firm that focuses on workstation rollouts, network installations, and structured cabling solutions. We provide support to MSPs, national IT integrators, and enterprise clients who need dependable on-site service. Our pr
Highlights
$10,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
10-49
Employees
Services Provided
60% Other IT Consulting and SI
40% IT Staff Augmentation
AI Summary
“ZJF IT Services LLC specializes in nationwide IT deployment and field services, offering workstation rollouts, network installations, structured cabling, hardware upgrades, and comprehensive on-site IT support.”
Flying Buttress
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Flying Buttress focuses on providing implementation and support services for Architecture, Engineering, and Design firms. With more than 80 years of collective experience in the AED sector, Flying Buttress effectively integrates technology to meet your company's requirements.
Highlights
10-49
Employees
Services Provided
60% Other IT Consulting and SI
40% Cloud Consulting & SI
AI Summary
“Flying Buttress delivers specialized IT consulting, cloud integration, and managed technology services tailored for Architecture, Engineering, and Design firms, leveraging extensive industry experience to optimize operations.”
Ideo Software
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We provide outsourcing services, but we're equally capable of handling complete projects ourselves. We're comfortable with a fixed-price model, confident that our experience and a variety of pre-existing components give us an edge in this competitive landscape. We prioritize long-term partnerships w
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Rzeszow, Subcarpathian, Pl
Services Provided
43% Custom Web Application Development
7% E-Commerce Development
50% Other IT Consulting and SI
AI Summary
“Ideo Software delivers tailored fixed-price software solutions including websites and complex applications, leveraging experienced teams and fostering long-term client partnerships for diverse business needs.”
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TrustVare Software
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TrustVare is a software development company that focuses on creating solutions for data recovery, email migration, and data conversion. They offer a diverse array of software products tailored to meet the needs of both individuals and organizations. Known for their efficiency, reliability, and user-
Highlights
50-249
Employees
Redhill, England, Gb
Services Provided
20% BI & Big Data Consulting & SI
20% Cloud Consulting & SI
60% Other IT Consulting and SI
AI Summary
“TrustVare Software develops efficient, reliable tools for data recovery, email migration, and file conversion, serving individuals and organizations with innovative, user-friendly software solutions.”
Program-Ace
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🌍 With more than 30 years of experience in consulting and software development, Program-Ace offers both off-the-shelf and customizable solutions, along with bespoke development across various industries. As a global leader in innovative solutions integration, we effectively tackle specific business
Highlights
$75,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Limassol, Cy
Services Provided
40% Custom Web Application Development
10% Mobile App Development (iOS & Android)
50% Other IT Consulting and SI
AI Summary
“Program-Ace leverages over 30 years of expertise delivering customized software development and innovative technology solutions globally, combining efficiency, robust functionality, and industry-specific consulting.”
Digital of Things
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We are Digital of Things, dedicated to enhancing user experience throughout the Middle East and North Africa. Our team is committed to prioritizing the customer in all our endeavors. Based in Dubai, we operate a user testing lab equipped with cutting-edge technology, such as facial recognition and e
Highlights
$25,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
10-49
Employees
Dubai, Dubayy, Ae
Services Provided
40% UX Research & Usability Testing
10% UX Audit & Heuristic Evaluation
50% Other IT Consulting and SI
AI Summary
“Digital of Things, based in Dubai, specializes in UX and user research in MENA, leveraging advanced technology to enhance user experience through testing, analysis, and culturally informed design.”
LLC UAG
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Since 1999, we have been offering assurance and consulting services in risk management, information technology management, and information security management systems. Our experience spans projects for clients with employee counts ranging from 5 to 40,000, including those from Ukraine, the CIS, and
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Kyiv, Kyiv, Ua
Services Provided
50% Change Management Consulting
50% Other IT Consulting and SI
AI Summary
“Since 1999, LLC UAG provides assurance and consulting services in risk, IT, and information security management across diverse industries and international clients.”

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Top IT Consulting and Systems Integration (SI) Companies

List of the Best Other IT Consulting and SI Agencies

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