Top 100 API Development Services
The Best of November 2026Looking for a top API developer?
API development companies can build robust and scalable application programming interfaces (APIs) for businesses and organizations. By partnering with API development companies, businesses can leverage the power of APIs to enhance their digital infrastructure, improve efficiency, and drive innovation in today's interconnected digital landscape.
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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1$5,000+10 - 49 employeesKyiv, UkraineFrontmen is a small API Development company based in Kyiv, Ukraine and Tallinn, Estonia. They focus on API Development, Microservices Architecture Services, Custom Software Development, Web Development, and more and were established in 2000.Read More
Clients
Microsoft McDonald's Metro Cash&Carry PorscheIndustries
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2$25,000+1,000 - 9,999 employeesSão Paulo, BrazilFCamara is an user experience agency. Their large team is in São Paulo, Brazil; Leiria, Portugal; St Albans, England and Dubai, United Arab Emirates. Their services include UX/UI Design, IT strategy consulting, cloud consulting & SI, IT staff augmentation, and more. The firm was founded in 2006.Read More
Clients
Farfetch IPSOS Elfa Group BTG PactualIndustries
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3$1,000+50 - 249 employeesAustin, TXEstablished in 2015, Peeklogic, LLC is a CRM consulting and SI company. They are based in Austin, Texas; Leander, Texas; L'viv, Ukraine and Kraków, Poland and have a midsize team. Their services include CRM consulting and SI, API Development, IT staff augmentation, Low/No Code Development, and more.Read More
Clients
ECM Solutions Bizzabo GoDaddy CongotaIndustries
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4$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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5$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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6$5,000+50 - 249 employeesL'viv, UkraineApplication development firm Kevych Solutions is located in L'viv, Ukraine and Milton, Canada. The midsize firm was established in 2021. Their services include Mobile App Development, API Development, Custom Software Development, UX/UI Design, and more.Read More
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7$10,000+50 - 249 employeesZymna Voda, UkraineCustom software development firm Bits Orchestra was founded in 2017. Their midsize team is headquartered in Zymna Voda, Ukraine; Bakı, Azerbaijan and Orlando, Florida. Their services include Custom Software Development, Web Development, API Development, E-Commerce Development, and more.Read More
Clients
Harold Grinspoon FoundationIndustries
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8$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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9$10,000+50 - 249 employeesCastrop-Rauxel, GermanyChudovo is a software development company. They are in Castrop-Rauxel, Germany; London , England; Tallinn, Estonia and Kalispell, Montana and have a midsize team that provides Custom Software Development, Mobile App Development, Web Development, Enterprise App Modernization, and more. The company was established in 2006.Read More
Clients
Hoffman-La Roche, Royal Bank of Scotland, Saphera, Corizon Health, Evonik, TP-Link, Nexans, FDP-Bundestagsfraktion, berlinappcompany GmbH, Barcodes Inc., Pixabit-Solutions, Infocom, UkrPromBank, RBC SoftIndustries
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10$5,000+50 - 249 employeesLuzern, SwitzerlandSapientPro is an user experience design company founded in 2016. Their midsize team is located in Tallinn, Estonia; Luzern, Switzerland and Great Neck Plaza, New York and offers UX/UI Design, Custom Software Development, Web Development, Mobile App Development, and more.Read More
Clients
ContentooIndustries
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11$5,000+50 - 249 employeesStamford, EnglandSoftware development company Offshorly is located in Stamford, England and Quezon City, Philippines. The midsize team focuses on Custom Software Development, Artificial Intelligence, IT staff augmentation, Web Design, and more and was established in 2014.Read More
Clients
7-11 (Philippines) Dribble Portfolio: https://dribbble.com/offshorlyIndustries
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12$10,000+10 - 49 employeesKyiv, UkraineIntobi is a software development company founded in 2017. The company offers Custom Software Development, Web Development, API Development, Mobile App Development, and more and has a small team.Read More
Clients
Kato Moriarty MindTales Auto NagelIndustries
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13$25,000+10 - 49 employeesSydney, AustraliaSoftware development firm StepInsight was established in 2017. In Sydney, Australia; Etterbeek, Belgium; Austin, Texas and Dubai, United Arab Emirates, their small team focuses on Custom Software Development, Mobile App Development, API Development, and Artificial Intelligence.Read More
Clients
WWFIndustries
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14$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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15$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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16$50,000+10 - 49 employeesToronto, CanadaRead More
Software development firm Therefore is in Toronto, Canada. The small team focuses on Custom Software Development, API Development, Digital Strategy, Web Design, and more. The agency was established in 2003.
Clients
Goway Travel Rocky Mountaineer DuVine CyclingIndustries
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17$100,000+50 - 249 employeesNonStop io Technologies Inc, an artificial intelligence company, is based in Dover, Delaware. The midsize team provides Artificial Intelligence, Mobile App Development, Low/No Code Development, Custom Software Development, and more. The company was established in 2015.Read More
Clients
SucceedSmart - Premier AI-driven Executive Recruitment PlatformIndustries
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18$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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19$5,000+50 - 249 employeesToruń, PolandRead More
Ecom.software is a custom software development firm. Their midsize team is in Toruń, Poland and specializes in custom software development, cloud consulting & SI, enterprise app modernization, ux/ui design, and more. The firm was launched in 2016.
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20$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
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21$25,000+50 - 249 employeesEstablished in 2000, DevCom is an AI development company. The firm provides Artificial Intelligence, Custom Software Development, cloud consulting & SI, Mobile App Development, and more and has a midsize team. The firm is headquartered in Port Orange , Florida.Read More
Clients
DevCom provides complex and cost-effective yet best Managed IT Solutions for large enterprisesIndustries
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22$10,000+50 - 249 employeesSan Antonio, TXTowa - Nearshore Software Excellence is a midsize IT strategy consulting company. Established in 2002, the company is based in San Antonio, Texas; San Pedro Garza García, Mexico and Ciudad de México, Mexico. Their team provides IT strategy consulting, IT managed services, IT staff augmentation, Custom Software Development, and more.Read More
Clients
Backyard Products Inc Municibid Payably MegamakIndustries
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23Undisclosed10 - 49 employeesFulda, GermanySemantic Applications GmbH & Co. KG is a software development company located in Fulda, Germany and Našice, Croatia. The agency specializes in Custom Software Development, Web Development, API Development, DevOps Managed Services, and more and has a small team.The agency was launched in 2011.Read More
Clients
Landeskriminalamt Thüringen European Central Bank Trialytix AlcedisIndustries
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24$10,000+50 - 249 employeesBerlin, GermanyEstablished in 2020, ProductDock AG is a custom software development company. In Berlin, Germany; Novi Sad, Serbia; Banja Luka, Bosnia and Herzegovina and Doboj, Bosnia and Herzegovina, their midsize team focuses on Custom Software Development, API Development, Mobile App Development, Web Development, and more.Read More
Clients
AdevintaIndustries
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25$25,000+50 - 249 employeesWarszawa, PolandFREYSOFT is an API Development company founded in 2019. The midsize Warszawa, Poland-based team focuses on API Development, Custom Software Development, AI Agents, Artificial Intelligence, and more.Read More
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26$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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27$5,000+10 - 49 employeesKraków, PolandRead More
Founded in 2010, Bravelab.io is a development company headquartered in Krakow, Poland with a team of 15. They provide custom software and web development services to small businesses in the utilities and consumer products industries.
Clients
La Cupula MusicIndustries
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28$50,000+50 - 249 employeesMumbai, IndiaASTAQC CONSULTING is an Application Testing company launched in 2015. The midsize Mumbai, India-based team focuses on Application Testing, Web Development, Mobile App Development, API Development, and more.Read More
Clients
United Nations Pepsi Co Digiclarity LLC EMBRACING FUTURE POTENTIAL LTDIndustries
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29$10,000+10 - 49 employeesLOW/CODE Agency, a custom software development firm, was established in 2019. Located in Miami, Florida and Sheridan, Wyoming, their small team focuses on Custom Software Development, Artificial Intelligence, AI Agents, API Development, and more.Read More
Clients
MedtronicIndustries
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30$50,000+10 - 49 employeesKyiv, UkraineHeadquartered 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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