Top 40 API Development Services
The Best of December 2025Looking 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 employeesSydney, AustraliaCustom software development firm StepInsight was launched in 2017. The agency offers Custom Software Development, Mobile App Development, Artificial Intelligence, and API Development and has a small team. The agency is located in Sydney, Australia; Etterbeek, Belgium and Austin, Texas.Read More
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2$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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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 employeesMilsons Point, AustraliaInsyteGroup is a big data analytics company launched in 2016. They are based in London, England and Milsons Point, Australia and have a small team. Their services include BI & big data consulting & SI and API 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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6$50,000+10 - 49 employeesBateau Bay, AustraliaDazlab is a software development company. Their small team is headquartered in Bateau Bay, Australia. Their services include Custom Software Development and Enterprise App Modernization.Read More
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7$1,000+2 - 9 employeesHurstville, AustraliaSolverCircle, a website development company, was founded in 2005. The small team focuses on Web Development and Mobile App Development.Read More
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8$1,000+10 - 49 employeesNerang, AustraliaIOnline PTY LTD is a social media marketing company. Launched in 2000, the team specializes in Social Media Marketing and Content Marketing. The firm is in Nerang, Australia.Read More
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9Undisclosed10 - 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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10$10,000+2 - 9 employeesChiswick, AustraliaAzar Consulting is a small Chiswick, Australia-based IT strategy consulting company. The team provides IT strategy consulting and Mobile App Development.Read More
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11$1,000+2 - 9 employeesRedfern, AustraliaDigital Purpose Pty Ltd is a software development firm. The team offers Custom Software Development and API Development, and the agency is in Redfern, Australia.Read More
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12$5,000+2 - 9 employeesBrisbane City, AustraliaLocated in Brisbane City, Australia, minicode is a small custom software development firm. Their services include Custom Software Development and Enterprise App Modernization.Read More
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13Undisclosed2 - 9 employeesBrookvale, AustraliaEstablished in 2002, Hidden Spark is an IT strategy consulting company. Their team focuses on IT strategy consulting and BI & big data consulting & SI.Read More
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14$10,000+2 - 9 employeesCoomera, AustraliaCustom software development company Mosaik was founded in 2023. The firm provides Custom Software Development and Web Development.Read More
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15$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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16$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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17$1,000+10 - 49 employeesSydney, AustraliaFruition Services is a small software development firm located in Sydney, Australia and New Delhi, India. Their services include Custom Software Development and Business Consulting.Read More
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18$25,000+10 - 49 employeesCoopers Plains, AustraliaMetro Midas Technology, an ERP consulting and SI company, was established in 2020. They are headquartered in Coopers Plains, Australia and Gandhinagar, India and have a small team. Metro Midas Technology provides ERP consulting and SI, custom software development, web development, mobile app development, and more.Read More
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19$5,000+2 - 9 employeesSurry Hills, AustraliaSydney Software Development is a Surry Hills, Australia-based custom software development company. They specialize in Custom Software Development and Web Development.Read More
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20$5,000+2 - 9 employeesMortdale, AustraliaInayah Consulting is a web design agency located in Mortdale, Australia. Launched in 2021, the team specializes in Web Design and IT strategy consulting.Read More
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21$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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22$5,000+Freelancer employeesByron Bay, AustraliaRead More
Nexa Point is a custom software development company. They are located in Byron Bay, Australia and have a small team. The agency focuses on custom software development, mobile app development, web development, and api development.
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23$1,000+10 - 49 employeesBowen Hills, AustraliaWhitefox Cloud, a small cloud consulting & SI company, is headquartered in Bowen Hills, Australia. The team specializes in cloud consulting & SI and Custom Software Development.Read More
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24Undisclosed250 - 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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25$1,000+10 - 49 employeesKingsford, AustraliaXEESOFT is a web design company in Islamabad, Pakistan and Kingsford, Australia. Launched in 2009, the team focuses on Web Design and Web Development.Read More
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26$10,000+Freelancer employeesHorsley, AustraliaNaonis is a CRM consulting and SI company. The team provides CRM consulting and SI and Custom Software Development, and the firm is based in Horsley, Australia.Read More
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27$5,000+2 - 9 employeesKlemzig, AustraliaLaunched in 2018, Techwebsoft is a Conversion Optimization company. The agency provides Conversion Optimization, Search Engine Optimization, Web Development, Mobile App Development, and more and has a small team.Read More
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28Undisclosed10 - 49 employeesBarangaroo, AustraliaLaunched in 2020, Nikqik Technologies is a small IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.Read More
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29$1,000+50 - 249 employeesLavender Bay, AustraliaLaunched in 2013, Alkye Service Pty Ltd is a branding agency. The agency provides Branding and Digital Strategy, and is midsize.Read More
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30$10,000+10 - 49 employeesGateshead, AustraliaRentAAA is an UX design company. They focus on UX/UI Design and Custom Software Development and were established in 2023.Read More
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