API development and integration firms build the interfaces that let software talk to other software, and wire up the ones that already exist. Work ranges from designing REST, GraphQL or gRPC APIs for a product or partner program to connecting payment gateways, CRMs, ERPs, shipping carriers, messaging platforms and banking or healthcare systems through their published APIs. Companies hire for it when staff retype data between two systems, when partners want programmatic access, or when a monolith is being split into services.
Compare firms here on the systems they have integrated before, the documentation they hand over, and how they handle authentication, versioning and outages when a third-party API fails.
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
A custom software development company located in Estonia.
Tallinn, Harju, Ee
“Adonexus is an Estonian custom software development company delivering tailored solutions across industries, emphasizing quality and client-specific software innovation.”
Footprint.io has supported more than 500 businesses globally, ranging from small start-ups to large corporations. In recent years, they have received over 400 reviews. They have partnered with notable organizations such as PluralSite, Sezzle, World Star Hiphop, and the Canadian Federal Government. F
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Toronto, Ontario, Ca
“Footprint.io delivers professional web design services, collaborating with diverse global clients and notable partners, offering complimentary homepage designs to showcase their expertise and quality.”
OBRIYM is a compact, experienced web studio located in Europe. We create and develop fast, accessible, multilingual websites and e-commerce solutions for teams that prioritize quality and results. We focus on clarity—defining the scope, delivering clean code, and ensuring a reliable process. Our ser
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
“OBRIYM is a European web studio specializing in fast, accessible multilingual websites and e-commerce solutions, emphasizing quality, clear communication, sustainable architecture, and ongoing support across industries.”
Explore our Gen AI Solutions, available as either on-premise or hosted options to enhance your business operations. With specialization in LLM Merging and Fine-Tuning, we boost efficiency and develop tailored AI solutions to meet your requirements. Get in touch with us to harness the power of next-g
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Kochi, Kerala, In
“DIFFERENTBYTES delivers tailored next-generation AI solutions, specializing in LLM merging and fine-tuning, offered as on-premise or hosted services to enhance business efficiency.”
We are the creators of High Technology Solutions, and our passion for electronics runs deep – it’s what we live for in the realms of electronics engineering, embedded systems, and IoT solutions. With years of hands-on experience in the field, we excel at transforming concepts into tangible products
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Hamburg, Hamburg, De
“High Technology Solutions specializes in electronics engineering, embedded systems, and IoT, offering comprehensive PCB design, firmware development, and cloud services with end-to-end project support.”
WPExperts, a subsidiary of Objects, stands as a premier full-stack WordPress development agency globally. With more than thirteen years in operation, we have partnered with a diverse clientele, from startups to Fortune 500 companies. As a certified WooExpert partner, we specialize in WordPress enter
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Karachi, Sindh, Pk
“WPExperts is a full-stack WordPress and WooCommerce development agency offering enterprise-grade solutions, performance optimization, API integrations, and mobile app development with over 13 years' experience.”
Our Offerings: Bespoke Software Development: Customized solutions designed to meet specific business requirements. Jamstack Web Applications: Cutting-edge, secure, and incredibly fast web applications that improve user experiences. Low-Code Development: Speeding up the development process with a hig
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
“DEVEXC specializes in bespoke software, Jamstack web applications, and low-code development, delivering customized, secure, and efficient solutions to meet diverse business needs.”
ZYNK is a comprehensive provider of software development services, boasting over 13 years of experience in creating software products. Established in 2010, ZYNK has successfully completed more than 100 projects, which include mobile consumer applications, financial systems, messaging platforms, e-co
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Cluj-Napoca, Cluj, Ro
“ZYNK delivers diverse, custom software solutions across web, mobile, cloud, and embedded platforms, leveraging 13+ years’ experience in industries like finance, retail, and IoT globally.”
IIH Global – Tailored AI, Web, Software & Mobile Application Development Firm IIH Global is a reliable provider of custom software and AI development services for startups, small and medium-sized enterprises, and large corporations, assisting them in creating scalable digital products.
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Hertfordshire, England, Gb
“IIH Global specializes in custom software, AI, and web/mobile application development, delivering scalable, client-focused digital solutions across industries with expertise in modern technologies and agile practices.”
E-commerce Technologies (Shopify Plus, Laravel), Product Management, Digital Marketing (Facebook Ads, SEO), and Growth Hacking, all with a strong focus on analytics and the scientific method. I have experience working with various internet companies and brands such as Yeezy, Kanye West, Cookies, Lem
$50,000+
Min Project Size
50-249
Employees
Los Angeles, California, Us
“Number 5 offers expert e-commerce solutions using Shopify Plus, advanced web development, digital marketing, and growth hacking, leveraging analytics to serve diverse internet brands effectively.”
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