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.
List of the Best API Development Companies
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31$10,000+10 - 49 employeesHouston, TXRead More
Optimum is a digital marketing firm based in Houston. Since 2014, the small team of 3+ has specialized in web development, IT consulting, e-commerce development, email marketing, and mobile app development.
Clients
TrumpFIndustries
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32$5,000+10 - 49 employeesJacksonville, FLRead More
DiscoverTec, a website development company, was launched in 1994. They are in Jacksonville, Florida and have a small team. Their services include web development, web design, and cloud consulting & SI.
Clients
Community First Credit Union Wounded Warrior Project Home Depot Firehouse SubsIndustries
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33$10,000+50 - 249 employeesParker, COLaunched in 2015, UPlanet Inc is an AI firm. They are based in Parker, Colorado and have a midsize team. The firm provides Artificial Intelligence, Web Development, Mobile App Development, E-Commerce Development, and more.Read More
Clients
Shop HahnIndustries
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34$10,000+2 - 9 employeesAlexandria, VASoftware development firm Tech Foundry, LLC was launched in 2021. The agency offers Custom Software Development, UX/UI Design, Web Development, API Development, and more and has a small team. The agency is located in Alexandria, Virginia.Read More
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35$25,000+10 - 49 employeesChicago, ILTwinCore is a cloud consulting & SI company based in Chicago, Illinois. The small firm was founded in 2011. Their services include cloud consulting & SI, CRM consulting and SI, Custom Software Development, Web Development, and more.Read More
Clients
n-treeIndustries
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36$5,000+10 - 49 employeesMiami, FLRead More
Improvs.com, a mobile app development firm, was launched in 2022. Their small team is located in Miami, Florida and provides Mobile App Development, Web Development, API Development, Artificial Intelligence, and more.
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37$10,000+50 - 249 employeesAnn Arbor, MICustom software development company Genetech Solutions was established in 2006. The midsize team focuses on Custom Software Development, Mobile App Development, IT staff augmentation, Web Development, and more. The company is located in Ann Arbor, Michigan and Karachi, Pakistan.Read More
Clients
Simply Music LLC Nutri-West 340B Price Guide, LLC 3PL Systems, IncIndustries
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38$5,000+10 - 49 employeesSalt Lake City, UTRead More
Ksense Technologies LLC is a small website development company. The Murray, Utah-based agency was launched in 2017. Their services include web development and mobile app development.
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39$50,000+2 - 9 employeesSan Francisco, CAArtificial intelligence development company Algo Clan Inc. Was established in 2020. The small team offers Artificial Intelligence, DevOps Managed Services, API Development, Warehousing & Distribution, and more. The agency is headquartered in Calgary, Canada; Edmonton, Canada and San Francisco, California.Read More
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40$5,000+10 - 49 employeesSheridan, WYSoftware development firm TekInvent is based in Sheridan, Wyoming; Austin, Texas and Orlando, Florida. They focus on Custom Software Development, Web Development, Mobile App Development, E-Commerce Development, and more and were founded in 2021.Read More
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41$25,000+250 - 999 employeesTomball, TXGreen Apex, an application development company, is in Ahmedabad, India and Tomball, Texas. They offer Mobile App Development, Web Development, IT staff augmentation, Custom Software Development, and more and were founded in 2014.Read More
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42$10,000+2 - 9 employeesTucker, GAMasterwork Technologies is an user experience design agency. They are based in Tucker, Georgia and have a small team that specializes in UX/UI Design, Custom Software Development, Web Development, API Development, and more. The firm was launched in 2017.Read More
Clients
MOVES Managed Services GIS1 ReserveMyCourtIndustries
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43$10,000+2 - 9 employeesPasadena, CAGeekOffice, a , was founded in 2019. Headquartered in Sheridan, Wyoming, their small team specializes in.Read More
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44$1,000+2 - 9 employeesSheridan, WYArtificial intelligence development company Amplence is headquartered in Sheridan, Wyoming. The small team focuses on Artificial Intelligence, AI Agents, AI Consulting, Custom Software Development, and more. The agency was launched in 2020.Read More
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45$5,000+2 - 9 employeesBrooklyn, NYTwo Bit Solutions LLC, a website development company, is headquartered in Brooklyn, New York. The small agency was founded in 2020. Their services include web development, custom software development, mobile app development, IT strategy consulting, and more.Read More
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46$10,000+2 - 9 employeesDenver, CORead More
Forbina Consulting, LLC is a custom software development company launched in 2020. Their small team is based in Castle Rock, Colorado. Their services include custom software development, cloud consulting & SI, and other application development.
Clients
Foundation for the Accreditation of Cellular TherapyIndustries
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47$5,000+50 - 249 employeesEdison, NJI Verve Inc, a custom software development firm, was launched in 2008. Their midsize team is in Edison, New Jersey. The firm provides Custom Software Development, Artificial Intelligence, Enterprise App Modernization, Mobile App Development, and more.Read More
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48$50,000+10 - 49 employeesBroomfield, COLatitude 40 Consulting, Inc., a custom software development company, is located in Broomfield, Colorado. The small team provides Custom Software Development, Enterprise App Modernization, API Development, AI Consulting, and more and was established in 2010.Read More
Clients
ePlantSource Davey Coach Sales Syngenta Beta HealthIndustries
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49$5,000+10 - 49 employeesBellevue, WARead More
Scalex Technology Solutions is a digital agency founded in Bellevue, Wash. in 2015 with fewer than 50 employees. They specialize in cloud consulting, mobile app development, and custom software development for clients in the fields of education, financial, and IT services.
Clients
World VisionIndustries
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50$10,000+10 - 49 employeesNaperville, ILIn Naperville, Illinois; Kraków, Poland and L'viv, Ukraine, Inspirit Dev is a custom software development company. The agency offers Custom Software Development, Microservices Architecture Services, AI Agents, API Development, and more and is small.The agency was founded in 2020.Read More
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51$10,000+50 - 249 employeesLos Angeles, CASoftware development company Auspicious Soft is in Los Angeles, California. They provide Custom Software Development, Mobile App Development, AI Agents, API Development, and more and were founded in 2018.Read More
Clients
DistacartIndustries
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52$5,000+10 - 49 employeesSan Francisco, CADreamX, a small mobile application development firm, is located in San Francisco, California. Established in 2022, the team focuses on Mobile App Development, Custom Software Development, Web Development, IoT development, and more.Read More
Clients
Pladri Greek Time Corp. PropTexxIndustries
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53$10,000+2 - 9 employeesDetroit, MIApplication development company Spaceboat was founded in 2015. They are in Detroit, Michigan and Austin, Texas and have a small team. Their services include Mobile App Development, API Development, UX/UI Design, and Artificial Intelligence.Read More
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54$10,000+2 - 9 employeesGainesville, FLWeb development firm Onward Development was founded in 2014. The small Gainesville, Florida-based team focuses on Web Development, API Development, Custom Software Development, E-Commerce Development, and more.Read More
Industries
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55$25,000+10 - 49 employeesGermantown, TNSmall software development company Clear Function, is headquartered in Germantown, Tennessee. Launched in 2015, the team offers Custom Software Development, Generative AI, Web Development, API Development, and more.Read More
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56$1,000+2 - 9 employeesYardley, PAArtol Web Studio is a SEO services firm established in 2024. The agency offers Search Engine Optimization, Custom Software Development, Web Development, API Development, and more and has a small team. The agency is located in Yardley, Pennsylvania.Read More
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57$50,000+10 - 49 employeesNew York, NYIT strategy consulting company Blood & Treasure, LLC was founded in 2012. The firm focuses on IT strategy consulting, IT managed services, custom software development, web development, and more and has a small team. The firm is located in New York, New York.Read More
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58$50,000+2 - 9 employeesEvanston, ILJam-IT BPM Consultants is a Low/No Code Development company. They are headquartered in Evanston, Illinois and have a small team. Their services include Low/No Code Development, Custom Software Development, Enterprise App Modernization, API Development, and more.Read More
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59$1,000+10 - 49 employeesSan Bernardino, CARead More
WordSphere WordPress Development Agency is a software development firm established in 2007. Their small team is headquartered in San Bernardino, California. The company focuses on custom software development, IT managed services, web design, wearable app development, and more.
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60$1,000+2 - 9 employeesCorona, CALocated in Corona, California, WellomyTech is an IT managed services company. They offer IT managed services, Artificial Intelligence, custom software development, enterprise app modernization, and more and were established in 2021.Read More
Industries
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