Top 10 API Development Services
The Best of April 2026Looking for a top API developer?
With their in-depth knowledge of API technologies, programming languages, and industry best practices, API developers help businesses design, build, and deploy custom APIs that meet their specific business requirements. By collaborating with API development professionals, businesses can unlock new opportunities for data sharing, automation, and integration.
That's why we've created this list of the best API developers for you to review. Read through company descriptions, former clients, and notable projects to find the best fit for your business.
List of the Best API Development Companies
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1$25,000+10 - 49 employeesCollingwood, AustraliaRead More
Located in Collingwood, Australia, We Make Apps is a mobile app development company. They focus on mobile app development, ux/ui design, and product design and were established in 2011.
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2$10,000+50 - 249 employeesMelbourne, AustraliaZertain, an AI Consulting company, is headquartered in New York, New York; Bengaluru, India and Melbourne, Australia. Established in 2021, the midsize team focuses on AI Consulting, Low/No Code Development, Enterprise App Modernization, IT managed services, and more.Read More
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3Undisclosed250 - 999 employeesMelbourne, AustraliaMantel is a Digital Strategy company based in Melbourne, Australia and Sydney, Australia. Their services include Digital Strategy and Product Design.Read More
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4$10,000+10 - 49 employeesMelbourne, AustraliaFainchap Technologies is a software development company. They were founded in 2020, and their services include Custom Software Development and Mobile App Development.Read More
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5$5,000+2 - 9 employeesMelbourne, AustraliaConvertec LLC, a software development firm, is headquartered in New York, New York and Melbourne, Australia. Launched in 2023, the team focuses on Custom Software Development and Web Development.Read More
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6Undisclosed10 - 49 employeesMount Waverley, AustraliaIn Mount Waverley, Australia, iNNsite is a small custom software development firm. Their services include Custom Software Development and Web Development.Read More
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7$50,000+10 - 49 employeesScoresby, AustraliaBased in Scoresby, Australia and Auckland, New Zealand, FICUSIT PTY LTD is an IT managed services company. They offer IT managed services and Custom Software Development.Read More
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8$25,000+50 - 249 employeesSt Kilda, AustraliaISystemz is a software development firm. The St Kilda, Australia-based team specializes in Custom Software Development and ERP consulting and SI.Read More
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9$5,000+2 - 9 employeesCarnegie, AustraliaFounded in 2024, Sandlabs Pty Ltd is a custom software development company. The company provides Custom Software Development and Web Development, and is small.Read More
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10$1,000+2 - 9 employeesAbbotsford, AustraliaTektown, a small software development firm, is headquartered in Abbotsford, Australia. Their services include Custom Software Development and Web Development.Read More
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11Undisclosed250 - 999 employeesMelbourne, AustraliaLaunched in 2014, Versent is a cloud consulting & SI company. The team offers cloud consulting & SI and Custom Software Development.Read More
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12$5,000+2 - 9 employeesAintree, AustraliaNetopz is an Application Testing company. Located in Herzogenrath, Germany and Aintree, Australia, the agency specializes in Application Testing and Application Management & Support.Read More
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13Undisclosed2 - 9 employeesRavenhall, AustraliaManga Solutions is a small data analytics company established in 1995. Their services include BI & big data consulting & SI and Market Research.Read More
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