Top 100 API Development Services

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Top 100 API Development Services

The Best of April 2026

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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. 

Jump to Most Reviewed Companies

List of the Best API Development Companies

  • 31
    (0 Reviews)

    Not yet reviewed.

    $25,000+
    2 - 9 employees
    York, England
    Boon & Moil Limited is an application development company and API Development company. Established in 2019, their team focuses on Mobile App Development and API Development.
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  • 32
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Leeds, England
    User experience agency Burendo was launched in 2018. Based in Leeds, England, the team specializes in UX/UI Design and Product Design.
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  • 33
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    Crawley, England
    AJ Nodes, a custom software development firm, was founded in 2016. The company focuses on Custom Software Development and Web Development.
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    Industries

  • 34
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    50 - 249 employees
    Stafford, England
    E-commerce development firm Kanuka Digital was founded in 1995. The firm provides E-Commerce Development and Web Design.
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    Industries

  • 35
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Ringwood, England
    Smarter Technologies Group, a web development company, provide Web Development and IoT development. They were launched in 2009.
    Read More
  • 36
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    250 - 999 employees
    London, England
    Novicell is a branding agency. The firm is headquartered in London, England. Their team focuses on Branding and Digital Strategy.
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    Industries

  • 37
    (8 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $10,000+
    10 - 49 employees
    London, England
    WebMagic Agency, a software development firm, is located in London, England; Reda, Poland; Segovia, Spain and Cluj-Napoca, Romania. The company offers Custom Software Development, E-Commerce Development, IT managed services, API Development, and more and has a small team.The company was launched in 2014.
    Read More

    Industries

  • 38
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    London, England
    Big data analytics company Synapx was established in 2021. Based in London, England, the team provides BI & big data consulting & SI and Custom Software Development.
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    Industries

  • 39
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    Wraxall, England
    The Upthrive Agency is a SEO services firm. They are based in Wraxall, England and have small team of experts. Their services include Search Engine Optimization and API Development.
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  • 40
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    2 - 9 employees
    Plymouth, England
    Disruption Works is a Generative AI company. Located in Plymouth, England, the company was established in 2017. Their services include Generative AI and API Development.
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    Clients

    Atlanta Insurance Group

    Industries

  • 41
    (0 Reviews)

    Not yet reviewed.

    $25,000+
    2 - 9 employees
    Birmingham, England
    Kaizen 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.
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  • 42
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    Beeston, England
    Appatree, an user experience agency, was launched in 2022. The company specializes in UX/UI Design and Web Development.
    Read More

    Industries

  • 43
    (4 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    4.1

    Would Recommend

    5.0
    $25,000+
    50 - 249 employees
    London, England
    Integrella is a custom software development firm established in 2007. The company focuses on Custom Software Development, Web Development, IT staff augmentation, API Development, and more and has a midsize team. The company is located in London, England; Ahmedabad, India and Dubai, United Arab Emirates.
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    Industries

  • 44
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    10 - 49 employees
    HAYES, England
    Based in HAYES, England, Mikasa Soft is a small mobile app development firm. Their services include Mobile App Development and Web Development.
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  • 45
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees
    bradford, England
    TechBucks, an app development firm, was launched in 2013. The small team specializes in mobile app development, custom software development, web development, e-commerce development, and more. The firm is headquartered in bradford, United Kingdom and Shahdara, Pakistan.
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  • 46
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    2 - 9 employees
    Romford, England
    Headquartered in Romford, England, GGDX Ltd is a small website development company. The team offers Web Development and Application Testing.
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  • 47
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Manchester, England
    Established in 2024, Copiq is a small public relations firm. Their team offers Public Relations and Social Media Marketing.
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  • 48
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    2 - 9 employees
    Gloucester, England
    Web development company Doddle Agency is located in Gloucester, England. The team specializes in Web Development and Custom Software Development.
    Read More

    Industries

  • 49
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    2 - 9 employees
    Harrogate, England
    Procosoft Ltd, an ERP consulting and SI company, is located in Harrogate, England. Established in 2010, the team specializes in ERP consulting and SI and Custom Software Development.
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  • 50
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    2 - 9 employees
    Luton, England
    ICareSofttech Solutions is a CRM consulting and SI company. They were established in 2025 and focus on CRM consulting and SI and Custom Software Development.
    Read More

    Industries

  • 51
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    Woodley, England
    Kalipro Software Consultancy is an API Development company. The team focuses on API Development and Mobile App Development and is headquartered in Woodley, England.
    Read More
  • 52
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    London, England
    Pedl Digitl Limited is an API Development company. The team is located in London, England, and their services include API Development and Web Development.
    Read More
  • 53
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    2 - 9 employees
    London, England
    Antler Digital, a web development firm, is headquartered in London, England and Dubai, United Arab Emirates. They provide Web Development and API Development and were launched in 2017.
    Read More

    Industries

  • 54
    (1 Reviews) 4.5

    Timeliness

    5.0

    Service Excellence

    4.5

    Value

    5.0

    Would Recommend

    5.0
    $25,000+
    50 - 249 employees
    27 Old Gloucester Street, , England
    Codegem is a custom software development company. They are in 27 Old Gloucester Street, , England and have a midsize team. Their services include Custom Software Development, API Development, Application Testing, Engineering, and more.
    Read More

    Industries

  • 55
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    Park, England
    PNP Digital is a software development firm. The Park, England-based team specializes in Custom Software Development and Mobile App Development.
    Read More
  • 56
    (0 Reviews)

    Not yet reviewed.

    $50,000+
    10 - 49 employees
    Liverpool, England
    PixelBeard, a custom software development firm, provide Custom Software Development and Web Development. They were launched in 2017.
    Read More
  • 57
    (0 Reviews)

    Not yet reviewed.

    $25,000+
    2 - 9 employees
    Bordon, England
    Pivale is a Business Consulting company. The Bordon, England-based agency was founded in 2008. Their team specializes in Business Consulting and Web Design.
    Read More

    Industries

  • 58
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    Chilworth, England
    Headquartered in Chilworth, England, Data Made Eazy is a Data Annotation Services company. Their services include Data Annotation Services and Custom Software Development.
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  • 59
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    High Wycombe, England
    Cirronex is a small High Wycombe, England-based Application Testing company. Their services include Application Testing and Application Management & Support.
    Read More
  • 60
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    Nottingham, England
    Tea Powered Projects, a web design agency, was established in 2016. The firm provides Web Design and Web Development.
    Read More

    Industries

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