Top API Development & Integration Companies

A high-performing API Development & Integration solution can accelerate growth, boost customer engagement, and create new revenue streams—but only if it's built by a team you trust. Edverise makes it easy to connect with leading API Development & Integration companies around the globe. Providers and reviews are vetted extensively to ensure that we capture verified client feedback, project details, and measurable results. Use Edverise's filters to sort partners by budget, industry expertise, and location. Start comparing profiles to find the right match for your project.

Ratings Updated: August 7, 2026

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8,617 Companies

List of the Best API Development & Integration Agencies

Winning Solutions IncProfile set up by Edverise AI
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Winning Solutions, Inc. (WSI) can assist you in enhancing efficiency and profitability by developing a customized system that fits your specific requirements. Whether you need a more precise method for monitoring employee project times or a completely new business system, WSI is prepared to meet you
Highlights
50-99
Avg Hourly Rate
10-49
Employees
Services Provided+2 Services
25% CMS Development & Customization
60% Custom Web Application Development
15% API Development & Integration
60% Other IT Consulting and SI
AI Summary
“Winning Solutions, Inc. specializes in creating customized business systems tailored to enhance efficiency and profitability, enabling clients to operate uniquely without one-size-fits-all constraints.”
Best IT SolProfile set up by Edverise AI
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Best IT Sol is a premier company located in the USA that offers web development and digital marketing services. We focus on delivering all-inclusive solutions that enable businesses to create a robust online presence and meet their digital objectives. Our services include: 1. Web Development 2. Digi
Highlights
25-49
Avg Hourly Rate
10-49
Employees
Services Provided+9 Services
40% Mobile App Development (iOS & Android)
40% API Development & Integration
20% E-Commerce Development
30% Conversion Rate Optimization (CRO)
AI Summary
“Best IT Sol is a US-based company offering comprehensive web development and digital marketing services to help businesses build strong online presence and achieve digital goals.”
ByteForthProfile set up by Edverise AI
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At ByteForth, we are committed to revolutionizing your business through advanced technological solutions. Our knowledge encompasses web development, software creation, and mobile application development, utilizing the latest advancements in AI, machine learning, and big data. Whether you're looking
Highlights
$1,000+
Min Project Size
25-49
Avg Hourly Rate
2-9
Employees
Services Provided+3 Services
30% API Development & Integration
10% E-Commerce Development
60% Mobile App Development (iOS & Android)
100% Product UX Strategy
AI Summary
“ByteForth delivers innovative, scalable technology solutions including web, software, and mobile development, leveraging AI and big data to meet diverse business needs with quality and affordability.”
Aleph Null s.r.o.Profile set up by Edverise AI
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High-quality engineering, product development, and problem-solving services for defense and intelligence organizations.
Highlights
$100,000+
Min Project Size
50-99
Avg Hourly Rate
2-9
Employees
Services Provided+4 Services
35% Conversational AI & Voice Assistant Development
65% Machine Learning Model Development
25% Mobile App Development (iOS & Android)
35% API Development & Integration
AI Summary
“Aleph Null s.r.o. specializes in high-quality engineering, product development, and problem-solving services, primarily serving defense and intelligence sectors with professional expertise.”
UniGroupProfile set up by Edverise AI
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UniGroup is a software firm dedicated to designing robust and adaptable digital solutions for enterprises. With more than a decade of expertise in web development, we focus on creating scalable CRM and CMS systems, e-commerce platforms, and bespoke web applications utilizing Laravel and Vue.js. Our
Highlights
$5,000+
Min Project Size
25-49
Avg Hourly Rate
2-9
Employees
Services Provided+4 Services
20% Frontend Development
15% API Development & Integration
20% Backend Development
30% Custom Web Application Development
AI Summary
“UniGroup specializes in developing scalable, customized digital solutions including CRM, CMS, ERP, and e-commerce platforms, leveraging Laravel and Vue.js for diverse industry needs.”
SBLINIProfile set up by Edverise AI
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SBLINI Development is a technology partner based in Finland, recognized globally for its expertise in web and mobile app development, cloud infrastructure, and e-commerce solutions. Over the past eight years, we have established a solid reputation for delivering top-notch software solutions that ble
Highlights
$5,000+
Min Project Size
25-49
Avg Hourly Rate
10-49
Employees
Services Provided+4 Services
40% Mobile App Development (iOS & Android)
45% Custom Web Application Development
15% API Development & Integration
50% Product UX Strategy
AI Summary
“SBLINI Development is a Finland-based technology partner specializing in scalable web and mobile apps, e-commerce, and cloud solutions, serving diverse global clients with a focus on reliability and performance.”
A
Appey TechnologyProfile set up by Edverise AI
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✔︎ Over 7 Years of Experience in Mobile & Web Development ✔︎ Over $5M in funding raised for clients ✔︎ Over 3M app downloads | More than 30 published applications ✔︎ Increased Productivity by 30% using AI Tools like GitHub Copilot & Cursor 🎨 Multiple Design Iterations Until 100% Satisfaction is Ach
Highlights
$1,000+
Min Project Size
<25
Avg Hourly Rate
2-9
Employees
Surat, Gujarat, In
Services Provided+7 Services
20% Custom Web Application Development
30% Mobile App Development (iOS & Android)
20% Backend Development
15% Frontend Development
AI Summary
“Appey Technology specializes in mobile and web development, leveraging AI and multiple frameworks to deliver secure, scalable applications with proven experience and client-funded success.”
HD ConnexProfile set up by Edverise AI
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HD Connex stands out as an unconventional agency. Our team comprises strategists, designers, and engineers who believe that digital products should deliver tangible results, not just visual appeal. Every website, platform, and AI system we develop is focused on achieving success, whether that involv
Highlights
$1,000+
Min Project Size
100-149
Avg Hourly Rate
2-9
Employees
Daytona Beach, Florida, Us
Services Provided+4 Services
45% Custom Web Application Development
35% Mobile App Development (iOS & Android)
20% API Development & Integration
40% AI Strategy & Roadmap Consulting
AI Summary
“HD Connex is a Daytona Beach-based agency combining design, engineering, and strategy to create digital products focused on results like lead generation, conversions, and brand differentiation nationwide.”
ReliSourceProfile set up by Edverise AI
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ReliSource has been delivering high-quality specialized products and services to its clients for over 18 years. Based in Boston, MA, and with a research and development facility in Dhaka, Bangladesh, ReliSource operates as an extension of its clients' technology teams to enhance return on investment
Highlights
50-249
Employees
Bedford, Massachusetts, Us
Services Provided+13 Services
30% Custom Web Application Development
15% Frontend Development
15% Backend Development
10% Legacy System Modernization
AI Summary
“ReliSource is a Boston-based company offering specialized products and services, leveraging global expertise in sectors like pharmaceuticals and finance to enhance client ROI efficiently.”
Zenrio TechnologiesProfile set up by Edverise AI
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ZenRio Technologies is a contemporary software development firm dedicated to turning creative concepts into scalable, high-performance digital products. Located in Lucknow, the company collaborates with startups, small and medium-sized enterprises (SMEs), and large corporations to create dependable
Highlights
<25
Avg Hourly Rate
2-9
Employees
Services Provided+11 Services
25% Custom Web Application Development
20% Mobile App Development (iOS & Android)
20% API Development & Integration
10% E-Commerce Development
AI Summary
“ZenRio Technologies develops scalable, high-performance web and mobile solutions, including ERP, CRM, and AI automation, partnering with diverse businesses to deliver innovative, user-focused digital products.”

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