1. Uran Company: The Pinnacle of Custom Integration
With 18 years of experience and over 500 successful projects, Uran Company tops our list as a leader in software integration services. Specializing in custom API integration services, cloud integration solutions, and DevOps, this firm boasts a 4.9 Clutch.co rating. Operating from Bulgaria, the U.S., and Ukraine, Uran Company serves small-to-medium businesses (SMBs) and startups with tailored integration solutions that adapt to evolving needs.
Clients praise their ability to unify fragmented systems: “Uran Company's API integration solutions transformed our operations seamlessly.” Their expertise in AWS consulting and payment system integration makes them a standout for cloud-based integration services
2. iTransition: Versatile and Specialized
With 25+ years in the game and a team of 3,000+ engineers, iTransition delivers software integration services across healthcare, finance, and retail. Known for custom application integration, API integration services, and third-party service integration, they've built a client base of 800+ companies. Their focus on scalable, industry-specific solutions makes them a top integration solutions provider.
3. Uplanet: Cloud and AI Innovators
Uplanet earns the third spot with its cutting-edge cloud application integration services and digital transformation expertise. Specializing in API integration services USA and third-party API integration, they leverage AI and IoT to deliver real-time insights. A client raves, “Uplanet's cloud systems integration services revolutionized our data strategy.” Their innovative integration platform makes them a leader for businesses embracing custom application integration services.
4. SoftServe: Agile Integration Experts
SoftServe focuses on cloud integration, API development, and custom software integration, serving industries like healthcare and retail. Their agile approach and partnerships with cloud giants like AWS and Google Cloud ensure robust integration solutions for companies seeking flexibility and innovation.
5. EPAM Systems: Engineering Excellence
Globant combines API integration services with cloud solutions to drive digital transformation. Their expertise in third-party integration solutions and business applications integration supports industries like media and finance, offering scalable, creative software integration solutions.
6. Globant: Digital Transformation Specialists
Globant combines API integration services with cloud solutions to drive digital transformation. Their expertise in third-party integration solutions and business applications integration supports industries like media and finance, offering scalable, creative software integration solutions.
7. Luxoft: Niche Integration Leaders
Luxoft provides IT integration services with a focus on automotive, finance, and tech sectors. Their custom API integration services and cloud systems integration deliver high-performance solutions, making them a trusted integration company for specialized needs.
8. ScienceSoft: Precision and Reliability
ScienceSoft offers data integration services, API integration solutions, and cloud application integration with 30+ years of experience. Their tailored approach and focus on SMBs ensure integration platform solutions that are both effective and affordable.
9. N-iX: Eastern European Expertise
N-iX, based in Ukraine, excels in custom enterprise API development, cloud integration services, and third-party integration solutions. With 20+ years of experience, they serve tech-savvy clients needing API integration vendors with a global reach.
10. MuleSoft: API-First Innovation
MuleSoft, a Salesforce company, rounds out the list with its API-led connectivity and integration platform as a service (iPaaS). Their Anypoint Platform simplifies API integration services and custom enterprise API development, offering reusability and scalability for third-party integration solutions.

Why Choose Specialized Integration Partners?
Unlike giant conglomerates, these specialized firms provide custom API integration services, cloud systems integration, and application integration solutions tailored to unique business challenges. They're agile, innovative, and perfect for SMBs or enterprises seeking cost-effective connectivity. Key trends fueling their rise include:
Conclusion
For businesses in 2025, partnering with a specialized software integration company is the key to staying competitive. From Uran Company's custom expertise to MuleSoft's API innovation, these firms deliver API integration services, cloud solutions, and third-party integration that unlock your potential. Say goodbye to one-size-fits-all approaches—these agile specialists are your ticket to seamless connectivity.