Top 10 Best System Integration Companies for SMBs and Large Enterprises

As your company expands, it is essential to move away from separate, isolated systems and adopt comprehensive system integration to leverage innovation and maintain a competitive edge.

While some businesses may prefer to manage their software systems in-house, system integration often involves complex challenges that exceed their expertise.

System integration requires real-life experience, especially for advanced cloud-platform-based or ESB architecture integrations, so why reinvent the wheel?

Many companies choose to outsource system integration to specialized and experienced partners. This allows them to work more efficiently, achieve better results, and save money.

Consequently, system integration services have become one of the fastest-growing IT services in the United States.

System Integration is often executed as a part of legacy application modernization projects.

SI enables efficient data flow, enhanced operations, and drive growth.

With System Integration, your company will address and achieve:

  • Interoperability issues – Ensuring diverse systems can communicate and work together smoothly.
  • Data consistency and accessibility – Centralizing data access to maintain consistency and ease of use.
  • Operational efficiency – Streamlining processes to reduce manual effort and increase productivity.
  • Cost management – Reducing overhead through the elimination of redundant systems and processes.
  • Technological agility – Facilitating the adoption of new technologies and quicker response to market demands.

Our list highlights the top 10 system integration companies worldwide. Learn more about the differences in choosing the best IT outsourcing countries.

Leading the way:

  1. Euvic, Inc.
  2. CRMiUM
  3. Twistellar
  4. Peeklogic, LLC
  5. Appsilon
  6. Erudite Works
  8. OBO
  9. Tenesys
  10. Sunflower Lab

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1. Euvic, Inc. – Leading Experts in System Integration for SMBs and Large Enterprises

At Euvic, Inc., we’re proud to stand out as leaders in system integration. We bring over 18 years of experience seamlessly connecting different systems and applications to the table.

This expertise places us among the top choices globally, as showcased in our rich portfolio of client projects.

Our headquarters in New Jersey, USA, is the heart of our global operations. We are supported by a vast in-house network of over 5,000 talented software engineers, mainly located in Poland. Our dedication to assembling the perfect team for every project sets us apart. We’ve carefully selected 100+ teams of experts who deeply understand how to make systems work together through point-to-point, cloud-platform, or ESB integration.

Our specialty is making different systems communicate and operate as one. That way, we ensure everything from data flow to process management is streamlined and efficient. Our team has a strong foundation in various technologies, which enables us to tackle any integration challenge head-on.

Our Polish roots enhance our global reputation, with our developers consistently ranking among the best worldwide. This advantage allows us to offer our clients a competitive edge in their industries. Beyond connecting systems, we provide a comprehensive range of services, including IT system management, strategic planning, and more — all aimed at driving your business forward in the competitive market.

The Euvic System Integration Framework enables us to integrate your systems through a wide range of connectors, either on a cloud or on-prem solution. Learn more about our end-to-end system integration service.

Other Services Offered:

  • Legacy App Modernization
  • DevOps
  • Software QA & Testing
  • UX/UI & Product Design
  • Mobile App Development

Location: United States

2. CRMiUM – Best for CRM Solutions Integration

CRMiUM, founded in 2016, specializes in system integration and focuses on CRM systems. It offers selection, consultation, and maintenance services tailored to enhance business processes and growth.

Unlike typical integrators who might limit options to a single CRM system, the Ukrainian company shines by carefully selecting the CRM. They ensure it best fits your business needs, embodying the philosophy of “get rid of the unnecessary and then implement the important.”

Their proficiency in system integration can be seen in a project for a localization company. CRMiUM optimized and integrated business processes into the Pipedrive CRM software in that project. They demonstrated their strategic planning and execution, resulting in a streamlined operation closely aligned with the client’s goals.

Other Services Offered:

  • CRM Consulting
  • IT Consulting

Location: Ukraine

3. Twistellar – Best for Salesforce Integration

Established in 2017, Twistellar is a premier Salesforce Consulting Partner. The Danish company serves clients globally, focusing on Europe, the USA, Asia, and Australia.

Twistellar excels in system integration, with expertise across Salesforce domains, including Sales Cloud, Service Cloud, and Marketing Cloud. This expertise is accompanied by AI skills in customer behavior prediction and natural language processing. This blend of skills facilitates seamless third-party software integrations, maximizing CRM investments.

Notably, Twistellar demonstrated its integration expertise by setting up a Marketing Cloud integrated with Sales Cloud for a software development company. This project primarily involved data migration and journey building. It highlighted Twistellar’s strategic execution, technical proficiency, and responsive and personalized service, marking a successful partnership.

Other Services Offered:

  • CRM Consulting
  • ERP Consulting

Location: Denmark

4. Peeklogic – Best for CRM Consulting

Founded in 2015, Peeklogic, LLC, is based in Austin, TX, with a development team in Lviv City, Ukraine. It is recognized as a Salesforce Silver Consulting Partner and Salesforce ISV Partner.

Peeklogic specializes in CRM consulting and system integration, notably integrating Mailchimp and Conga with Salesforce for a staking provider. This project streamlined the client’s communication and data management processes and enhanced operational efficiency.

The integration project shows Peeklogic’s excellent execution skills, including providing training for the client’s sales representatives and ongoing support to address any Salesforce setup challenges.

Other Services Offered:

  • CRM Consulting
  • Custom Software Development

Location: United States

5. Appsilon – Best for R Shiny Integrations

Appsilon is specifically renowned for developing the world’s most advanced enterprise R Shiny applications and specializing in enterprise Shiny dashboards. The company is based in Poland and was established in 2013.

As a Posit (formerly RStudio) Full Service Certified Partner, Appsilon deploys data products using RStudio Server Pro, RStudio Connect, or RStudio Package Manager. This allows them to provide end-to-end project support, from development to advanced decision support systems and server infrastructure maintenance.

An example of their system integration skills is a project for a medical affairs community, where Appsilon built an application that seamlessly integrated systems for dashboard hosting and cloud deployment. This initiative enabled the client to bring their operations in-house, significantly optimizing their processes.

Other Services Offered:

  • BI & Big Data Consulting
  • Custom Software Development
  • Enterprise App Modernization

Location: Poland

6. Erudite Works – Best for Multi-Sector Integrations

Erudite Works, established in 2017, excels as a full-service IT outsourcing and consulting company specializing in system integration, focusing on Salesforce services. Beyond Salesforce, Erudite Works is known for its mobile app development services, ranking among the 100 top companies.

They cater to diverse sectors, including Utilities, Nonprofits, and Educational Institutions, delivering custom solutions tailored to unique requirements. Their Web App Development team, skilled across various technologies, is renowned for creating robust, user-friendly web applications.

A project that showcases their system integration capabilities involved ongoing development for a mining and metals company, handling complex coding for Visualforce pages and various integrations. It had excellent communication through email and other messaging apps to support collaboration. This shows its commitment to developing solutions that meet client needs.

Other Services Offered:

  • Web Development
  • Application Management & Support
  • Business Consulting

Location: India

Learn more and see our post about Poland vs. India for software development outsourcing.

7. DICEUS – Best for Complex Integrations

Founded in 2011, DICEUS has become a key player in technology transformation consulting and software engineering. It boasts a portfolio of over 130 projects across various sectors, such as technology, insurance, banking, and healthcare.

Their expertise in seamlessly integrating complex systems with existing IT ecosystems is a core strength. The Polish firm’s partnership with leading technology providers such as Microsoft, Google Cloud, and Oracle further enhances their capability to deliver comprehensive system integration solutions that meet their clients’ high standards.

A standout example of DICEUS’s system integration expertise was their AWS integration project for a tech service provider. Through effective communication and a detailed project roadmap, DICEUS exceeded expectations, successfully implementing a new module on AWS that allowed users to calculate the cost of database migration. This showcased their proficiency in delivering tailored system integration solutions.

Other Services Offered:

  • IT Strategy Consulting
  • Custom Software Development
  • Web Development

Location: Poland

8. OBO – Best for Marketing Integrations

Founded in 2016, OBO is a Digital Transformation Agency rooted in technology and marketing, with offices in Columbia, MD, and Washington, DC. Focusing on system integration, OBO’s team of technologists, developers, marketers, and business analysts collaborates to streamline and maximize the efficiency of client operations.

OBO’s system integration prowess is powered by its certifications with leading platforms such as Salesforce, HubSpot,, and Formstack. This recognition enables them to expertly evaluate clients’ existing technology stacks, recommend the best tools for their needs, implement these solutions, and offer ongoing support.

A prime example of their system integration capability is showcased in their work for a medical device distributor, where OBO developed and integrated a CRM solution using HubSpot. OBO’s commitment to going above and beyond highlights its technical expertise and customer-focused attitude in delivering high-quality system integration solutions.

Other Services Offered:

  • Email Marketing
  • Digital Strategy

Location: United States

9. Tenesys – Best for Cloud Integrations

Founded in 2015, Tenesys is a prominent cloud computing solutions provider known for delivering high-quality services across various sectors. With 8 years of expertise in cloud computing, they have become a trusted partner of three top hyper-scalers: AWS, GCP, and Azure.

Tenesys specializes in various industries, including e-commerce, fintech, entertainment, scientific research, publishing, and the shared economy model, offering solutions that ensure operational continuity, security, and scalability.

An example of their system integration expertise is their work on a job board platform, where Tenesys was tasked with monitoring and deploying the platform’s IT infrastructure on AWS. They also took on the responsibility for monitoring services and maintaining the framework, significantly enhancing the company’s development speed and environment stability.

Other Services Offered:

  • DevOps Managed Services
  • IT Strategy Consulting
  • IT Managed Services

Location: Poland

10. Sunflower Lab – Best for Rapid Integrations

Founded in 2010 and based on Flower Road in New Jersey, Sunflower Lab is an award-winning digital product and innovation renowned for providing high-end IT business solutions and services. Sunflower Lab has established itself as a leader in curating insightful dashboards via Power BI, leveraging state-of-the-art technologies and a certified team of data analysts.

Sunflower Lab’s mission has always been to tackle the most complex business cases, enabling a strong market presence through bespoke innovative solutions from ideation to delivery and support.

A prime example of their system integration skills is showcased in their development of a native iOS and Android e-commerce app for a lighting company. Their commitment to meeting client needs is evidenced by their speed, flexibility, and support, launching a prototype within three weeks and a working version in just three months, often working over holidays and weekends to meet deadlines.

Other Services Offered:

  • Robotics Process Automation
  • AI Development
  • Mobile App Development

Location: United States

See Our Latest References and Client Case Studies!

Check out our portfolio of successful client cases from various industries and company sizes

Conclusion: Don’t Try To Reinvent The Wheel. Let Us Do The Magic.

The featured companies are at the forefront of system integration, offering critical services for businesses aiming to unify their IT systems.

Their specialized knowledge and unwavering commitment to innovation are key for organizations looking to leverage advanced technology solutions for improved operational efficiency and to establish a competitive stance in the marketplace.

Considering unifying your business systems for enhanced operational synergy? Check out our list of the best legacy system modernization companies.

We at Euvic, Inc., are your partner for navigating system integration complexities. From the initial assessment to the final implementation, we’re with you at every stage of your journey.

Interested in how we can transform your business? Discover our successful system integration projects.

Get in touch via phone or our contact form to start the conversation.

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