Top 80 API Development Services
The Best of April 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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61$5,000+Freelancer employeesCalgary, CanadaNocturne Development is a website development company. The Calgary, Canada-based agency offers Web Development and Mobile App Development.Read More
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62UndisclosedFreelancer employeesCalgary, CanadaKaizo Digital Solutions Inc. Is an user experience company. Their small team is based in Calgary, Canada. Their services include UX/UI Design and API Development.Read More
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63$25,000+50 - 249 employeesOttawa, CanadaSoftware Development Hub is a custom software development firm. They are in Hamburg, Germany; Kharkiv, Ukraine and Ottawa, Canada and have a midsize team. Their services include Custom Software Development, Web Development, DevOps Managed Services, API Development, and more.Read More
Clients
FieldHub Inc.Industries
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64Undisclosed50 - 249 employeesToronto, CanadaContent Marketing company ContentLab was launched in 2018. The midsize team focuses on Content Marketing and Corporate Training & Coaching.Read More
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65$100,000+250 - 999 employeesToronto, CanadaSrinSoft Inc is a custom software development firm. Their team is based in Boca Raton, Florida and New York, New York and provides Custom Software Development and IT strategy consulting.Read More
Industries
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66$10,000+10 - 49 employeesCalgary, CanadaLaunched in 2011, Saucal is an e-commerce development firm. Based in Calgary, Canada and Buffalo, New York, their small team focuses on E-Commerce Development, Customer Service Outsourcing, API Development, and Web Design.Read More
Clients
Amazon PayIndustries
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67Undisclosed10 - 49 employeesToronto, CanadaMand Consulting Group is a small Application Testing company headquartered in Toronto, Canada. The team specializes in Application Testing and Cybersecurity.Read More
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68Undisclosed10 - 49 employeesToronto, CanadaITechtions Inc. Is an IT strategy consulting company. Their team is located in Toronto, Canada. The agency provides IT strategy consulting and DevOps Managed Services.Read More
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69$5,000+50 - 249 employeesFredericton, CanadaMobile application development firm SyntecX was launched in 2005. The midsize team focuses on Mobile App Development and Web Development.Read More
Industries
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70Undisclosed2 - 9 employeesWindsor, CanadaLaunched in 2021, Vetesys is an Application Testing company. The small team focuses on Application Testing and API Development.Read More
Industries
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71Undisclosed2 - 9 employeesToronto, CanadaSora Media is a small branding agency based in Toronto, Canada. The team focuses on Branding and Search Engine Optimization.Read More
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72$5,000+50 - 249 employeesFredericton, CanadaSyntecX Global Corporation is a mobile app development firm launched in 2005. Their services include Mobile App Development and Custom Software Development.Read More
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73UndisclosedFreelancer employeesGatineau, CanadaHeavenkeys is a web design company founded in 2020. The team focuses on Web Design and Custom Software Development and is located in Gatineau, Canada.Read More
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74Undisclosed10 - 49 employeesOakville, CanadaLaunched in 2008, TechHighway Systems Inc. Is a small Oakville, Canada-based web development firm. Their services include Web Development and Search Engine Optimization.Read More
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75Undisclosed50 - 249 employeesCalgary, CanadaLaunched in 2013, KWA Analytics is a midsize Architectural Design company. Their services include Architectural Design and Custom Software Development.Read More
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76Undisclosed250 - 999 employeesToronto, CanadaExavalu is an IT strategy consulting company. Launched in 2018, the agency offers IT strategy consulting and CRM consulting and SI.Read More
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77Undisclosed250 - 999 employeesToronto, CanadaKeylent Inc, a business intelligence company, was founded in 2010. The agency offers BI & big data consulting & SI and CRM consulting and SI, and is midsize.Read More
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78Undisclosed50 - 249 employeesToronto, CanadaInfobahn Softworld Inc is a cloud consulting & SI company. The agency is based in Toronto, Canada and San Jose, California. Their team focuses on cloud consulting & SI and Application Testing.Read More
Industries
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