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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1$10,000+50 - 249 employeesWilder, KYRed Hawk Technologies is an artificial intelligence development company headquartered in Wilder, Kentucky. The agency provides Artificial Intelligence, Custom Software Development, Application Management & Support, Mobile App Development, and more and has a midsize team.The agency was established in 2008.Read More
Clients
Boone County PVA Best Upon Request Champion Windows and Doors BioRX HealthcareIndustries
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2$5,000+50 - 249 employeesMiami, FL26 Lines Of Code, an API Development company, was established in 2017. Their midsize team is in Miami, Florida; Boryspil', Ukraine; Miami, Florida and Cheyenne, Wyoming. Their services include API Development, Custom Software Development, Mobile App Development, Web Development, and more.Read More
Clients
RainaMusic RxPhoto Intuceo PBMSourceIndustries
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3$10,000+10 - 49 employeesSt. Louis, MOCustom software development firm Sketch Development was founded in 2015. Their small team is located in St. Louis, Missouri and Pittsburgh, Pennsylvania. Their services include Custom Software Development, Artificial Intelligence, AI Agents, AI Consulting, and more.Read More
Clients
Reinsurance Group of America (RGA) bioMerieux CareSource CENTEGIXIndustries
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4$25,000+50 - 249 employeesMiami, FLBIX Tech is a midsize software development firm. The Miami, Florida-based agency was founded in 2014. Their services include Custom Software Development, Artificial Intelligence, BI & big data consulting & SI, IT staff augmentation, and more.Read More
Clients
Brazilian big players in ceramic coatingIndustries
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5$5,000+10 - 49 employeesDenver, COCustom software development company Pell Software was launched in 2019. Based in Denver, Colorado, their small team provides Custom Software Development, Enterprise App Modernization, API Development, and Web Design.Read More
Clients
Aegion / Underground SolutionsIndustries
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6$25,000+10 - 49 employeesNashville, TNTwin Sun is a software development company. Established in 2017, the team offers Custom Software Development, UX/UI Design, Artificial Intelligence, Mobile App Development, and more. Their small company is based in Nashville, Tennessee.Read More
Industries
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7$25,000+250 - 999 employeesPlano, TXLaunch by NTT DATA, a mobile app development company, was founded in 2023. The firm provides mobile app development, product design, custom software development, web development, and more and has a midsize team.Read More
Industries
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8$10,000+10 - 49 employeesPlano, TXDreamers of Day is a website development firm. Founded in 2015, the team offers Web Development, Web Design, Digital Strategy, UX/UI Design, and more. Their small agency is Plano, Texas-based.Read More
Clients
Texas Real Estate Research Center American Airlines BRIC MetroPlusHealthIndustries
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9$50,000+10 - 49 employeesSan Francisco, CAHeadquartered in Kyiv, Ukraine; San Francisco, California; Newark, Delaware and Tallinn, Estonia, Gearheart.io is a software development company. The small team offers Custom Software Development, AI Agents, Enterprise App Modernization, DevOps Managed Services, and more and was launched in 2012.Read More
Clients
SmartSuite ICEIndustries
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10$10,000+50 - 249 employeesCoral Gables, FLRead More
The Rocked Code is a custom software development firm. Their midsize team is located in Ciudad de México, Mexico. Their services include custom software development, other IT consulting and SI, application management & support, product design, and more. The agency was established in 2016.
Clients
Coru Creze Hexalud SEOS EnergyIndustries
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11$25,000+50 - 249 employeesBlue Ash, OHLocated in Blue Ash, Ohio, Ingage Partners is a cloud consulting & SI company. The midsize team focuses on cloud consulting & SI, Custom Software Development, API Development, IT strategy consulting, and more and was established in 2011.Read More
Clients
Kroger Fifth Third EyeMed ClarkeIndustries
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12$10,000+10 - 49 employeesSheridan, WYIn Sheridan, Wyoming and Wangford, England, JetBase is an API Development company. The small team focuses on API Development, Custom Software Development, cloud consulting & SI, E-Commerce Development, and more and was established in 2014.Read More
Industries
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13$10,000+10 - 49 employeesMiami, FLFounded in 1991, SmallCo. Inc is a custom software development firm. Their small team is located in Miami, Florida. Their services include custom software development.Read More
Industries
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14$5,000+10 - 49 employeesHouston, TXTevpro, an Enterprise App Modernization company, was founded in 2016. Their small team is in Houston, Texas. Their services include Enterprise App Modernization, API Development, IT strategy consulting, Custom Software Development, and more.Read More
Clients
Lambda EnergyIndustries
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15$10,000+10 - 49 employeesIrvine, CARead More
Located in Irvine, California and Fredericksburg, Virginia, CoSpark is an e-commerce development company. They specialize in E-Commerce Development, Web Development, API Development, and Web Design and were launched in 2009.
Industries
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16$25,000+50 - 249 employeesLos Angeles, CAUser experience design agency ISBX Corp was launched in 2009. They are located in Los Angeles, California and have a midsize team. ISBX Corp focuses on UX/UI Design, Custom Software Development, Web Development, Mobile App Development, and more.Read More
Clients
Science37 BrainCorp Red Bull - Multiple Projects Apple/BeatsIndustries
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17$25,000+10 - 49 employeesRaleigh, NCLocated in Raleigh, North Carolina, Zette is a mobile app development firm. The small team specializes in Mobile App Development, API Development, and UX/UI Design. The agency was established in 2022.Read More
Clients
CarePICSIndustries
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18$5,000+50 - 249 employeesDavie, FLAlt Digital Technologies, a midsize Microservices Architecture Services company, is based in Davie, Florida and London, England. Founded in 2015, the team focuses on Microservices Architecture Services, IT managed services, Custom Software Development, Web Development, and more.Read More
Industries
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19Undisclosed10 - 49 employeesDraper, UTRead More
Mystic Media is a mobile app and software development agency based in Murray, Utah. The agency, founded in 2001, has more than 50 employees and provides mobile app development, custom software development, and web development services to small and larger-sized companies and institutions in various industries that include business services, gaming, and health care & medical.
Clients
Tata ChemicalsIndustries
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20$1,000+50 - 249 employeesSacramento, CAEstablished in 2013, Satva Solutions is a software development company. The agency provides Custom Software Development, ERP consulting and SI, IT staff augmentation, API Development, and more and has a midsize team.Read More
Clients
RenaultIndustries
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21$10,000+50 - 249 employeesFairfield, CTMidsize software development company ObjectStyle, is located in Fairfield, Connecticut; Fairfield, Connecticut and Warszawa, Poland. They specialize in Custom Software Development, Enterprise App Modernization, Microservices Architecture Services, Sports Marketing, and more and were founded in 2002.Read More
Clients
NHLIndustries
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22$5,000+10 - 49 employeesChicago, ILHristov Development, an UX agency, was founded in 2013. Their small team is headquartered in Chicago, Illinois and Aguascalientes, Mexico. The company offers UX/UI Design, cloud consulting & SI, IT managed services, IT staff augmentation, and more.Read More
Clients
CylindoIndustries
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23$25,000+50 - 249 employeesAustin, TXPixel Appy is an Austin, Texas-based software development firm. Founded in 2018, the midsize team offers Custom Software Development, Mobile App Development, API Development, Web Development, and more.Read More
Industries
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24$25,000+10 - 49 employeesAtlanta, GAAirtight Design is a small web design company based in Atlanta, Georgia. Established in 2001, the team offers Web Design, UX/UI Design, Custom Software Development, Web Development, and more.Read More
Industries
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25$5,000+10 - 49 employeesNew York, NYInvowork is a New York, New York-based web development firm. Launched in 2022, the small team specializes in Web Development, Mobile App Development, Generative AI, and API Development.Read More
Industries
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26$50,000+10 - 49 employeesSan Diego, CARead More
Achieve Internet is a software development company that's headquartered in San Diego; they have another office in Los Angeles. Founded in 2002, Achieve Internet does web development, enterprise content management, sales intelligence, enterprise app modernization, CRM consulting, and e-commerce development. Clients are mostly midmarket companies and in the healthcare and arts and entertainment sectors. They have about 41 employees.
Clients
DexcomIndustries
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27$10,000+2 - 9 employeesSheridan, WYAqsa Shahzad Official LLC is an e-commerce development firm. They are based in Sheridan, Wyoming and have a small team. The agency specializes in E-Commerce Development, Web Development, Mobile App Development, API Development, and more.Read More
Industries
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28$25,000+10 - 49 employeesNaperville, ILMeta App Designs is a small app development company. They provide Mobile App Development, Blockchain, AR/VR development, IoT development, and more and were founded in 2020.Read More
Industries
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29$1,000+10 - 49 employeesProvo, UTRead More
Bright Bridge Web is a Provo, Utah based web development firm. They were founded in 2014 and have 20 employees. They specialize in the use of the Django framework and along with web development, they also offer mobile app development.
Clients
Creative Energies SolarIndustries
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30$5,000+10 - 49 employeesFort Wayne, INRobotics process automation company DataCose was launched in 2021. Their small team is in Fort Wayne, Indiana. Their services include robotics process automation, api development, and custom software development.Read More
Clients
Dirt Legal We Treat Renaissance Club All The RestaurantsIndustries
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