Top 100 API Development Services
The Best of November 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.
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List of the Best API Development Companies
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151$10,000+2 - 9 employeesGlenview, ILAdtitude Digital, an Engineering company, is based in Glenview, Illinois. They specialize in Engineering and BI & big data consulting & SI and were established in 2021.Read More
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152$25,000+2 - 9 employeesSan Francisco, CAKaizen Deliverables, a web development firm, was launched in 2023. Located in Birmingham, England and San Francisco, California, the team provides Web Development and Mobile App Development.Read More
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153$5,000+10 - 49 employeesPittsburgh, PAFoo Bar is a custom software development firm. They offer Custom Software Development and Enterprise App Modernization and were established in 2018. The firm is based in Pittsburgh, Pennsylvania.Read More
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154$1,000+10 - 49 employeesKalispell, MTCustom software development firm Updeck was launched in 2019. The agency provides Custom Software Development, E-Commerce Development, Web Development, API Development, and more and has a small team. The agency is located in Kalispell, Montana.Read More
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155$5,000+2 - 9 employeesDover, DEHumbleDevs, a custom software development company, is located in Dover, Delaware. Launched in 2020, the small team specializes in Custom Software Development, API Development, Application Management & Support, and Web Development.Read More
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156$5,000+2 - 9 employeesAthens, TNCatalyst Software Solutions is a software development firm established in 2026. Their team offers Custom Software Development and Enterprise App Modernization.Read More
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157$50,000+2 - 9 employeesPhiladelphia, PABeneficial Enterprise Group, a small API Development company, is located in Philadelphia, Pennsylvania. The team provides API Development and ERP consulting and SI.Read More
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158Undisclosed10 - 49 employeesLiberty, MOProdjex, a custom software development firm, provide Custom Software Development and E-Commerce Development. They were founded in 2017.Read More
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159$10,000+10 - 49 employeesBoston, MASoftware development firm LaunchWare specializes in Custom Software Development and Web Development. They were founded in 2006.Read More
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160Undisclosed10 - 49 employeesSouth Plainfield, NJTruGen AI is an AI Agents company. Based in South Plainfield, New Jersey, the agency was established in 2024. Their team focuses on AI Agents and Artificial Intelligence.Read More
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161$5,000+2 - 9 employeesCherry Valley, ILSW Development Services is a web development firm based in Cherry Valley, Illinois. Launched in 2014, the small team focuses on web development, mobile app development, api development, and search engine optimization.Read More
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162$5,000+2 - 9 employeesTallmadge, OHWork Horse Integrations, an IT strategy consulting company, is based in Tallmadge, Ohio. The team focuses on IT strategy consulting and BI & big data consulting & SI.Read More
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163Undisclosed2 - 9 employeesRolling Meadows, ILPlacematic USA LLC is a website development company. The team focuses on Web Development and Mobile App Development, and the company is located in Rolling Meadows, Illinois.Read More
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164Undisclosed50 - 249 employeesNorthbrook, ILMidsize IT strategy consulting company Kokomo24/7®, is in Northbrook, Illinois. Their services include IT strategy consulting and CRM consulting and SI.Read More
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165$10,000+2 - 9 employeesDover, DELaunched in 2021, Anvil Development Agency Inc. Is a website development firm. Headquartered in Dover, Delaware, the team provides Web Development and Mobile App Development.Read More
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166$5,000+10 - 49 employeesWaxhaw, NCCloud consulting & SI company Integrationpath LLC was founded in 2016. The team focuses on cloud consulting & SI and IT managed services and is headquartered in and Waxhaw, North Carolina.Read More
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167$5,000+10 - 49 employeesBrooklyn, NYIn Brooklyn, New York, Redemptive Studios is a small Product Design company. Their services include Product Design and IT staff augmentation.Read More
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168Undisclosed10 - 49 employeesMountain View, CASaprIT is a CRM consulting and SI company based in Mountain View, California. Established in 2013, the small team offers CRM consulting and SI, ERP consulting and SI, Custom Software Development, and API Development.Read More
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169$100,000+10 - 49 employeesAnchorage, AKIQ Lab is an IT staff augmentation company. They are headquartered in Anchorage, Alaska and have small team. They provide IT staff augmentation and Custom Software Development.Read More
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170$1,000+10 - 49 employeesSacramento, CACustom software development company Devyar - Creative Agency was founded in 2015. The team specializes in Custom Software Development and Web Development and is located in Sacramento, California.Read More
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171$10,000+50 - 249 employeesNew York, NYZertain, 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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172$5,000+50 - 249 employeesLongmont, CORealware LLC, a midsize IT strategy consulting company, is located in Longmont, Colorado. The team provides IT strategy consulting and Cybersecurity.Read More
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173Undisclosed50 - 249 employeesPalo Alto, CAFiorano is a Business Consulting and API Development company. They offer Business Consulting and API Development and were established in 1995.Read More
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174Undisclosed50 - 249 employeesDover, DESuperViz is a web development company and API Development company launched in 2018. The midsize team specializes in Web Development and API Development.Read More
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175Undisclosed1,000 - 9,999 employeesDayton, OHFounded in 1910, Vivial Connect is a SEO company and API Development company. The firm offers Search Engine Optimization and API Development, and is large.Read More
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176$10,000+50 - 249 employeesLubbock, TXEstablished in 2020, Hifi Devs is a custom software development company. The team offers Custom Software Development and Web Development and is headquartered in Lubbock, Texas.Read More
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177$5,000+10 - 49 employeesTulsa, OKSeed Technologies is a small website development firm. Founded in 2004, the team offers Web Development and Custom Software Development.Read More
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178Undisclosed10 - 49 employeesChicago, ILScalesology is a big data company. They are based in Chicago, Illinois and Denver, Colorado, and their services include BI & big data consulting & SI and Custom Software Development.Read More
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179$10,000+50 - 249 employeesBrentwood, TNChampSoft Inc. Is an IT staff augmentation company. Located in Brentwood, Tennessee and Bengaluru, India, their team specializes in IT staff augmentation and Low/No Code Development.Read More
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180$25,000+50 - 249 employeesCoppell, TXKiranam Technologies is a software development firm. The midsize Coppell, Texas-based team focuses on Custom Software Development and Artificial Intelligence. The company was founded in 2012.Read More
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