Top API Developers in the United Kingdom
128 Companies
List of the Top United Kingdom API Development Services
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$1,000+$25 - $49 / hrFreelancerLondon, England
Services provided
20% API Development20% Mobile App Development20% Search Engine Optimization +2 services20% UX/UI Design20% Web DevelopmentM2Poweri LTD, a SEO agency, was launched in 2025. The firm specializes in Search Engine Optimization and UX/UI Design, and is small.
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$1,000+$100 - $149 / hrFreelancerNorthampton, England
Services provided
20% API Development60% Custom Software Development20% Web DevelopmentLaunched in 2025, ARG Systems is a custom software development company. Based in Northampton, England, the team specializes in Custom Software Development and Web Development.
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$1,000+$25 - $49 / hr10 - 49Luton, England
Services provided
10% API Development10% AI Development10% Custom Software Development +8 services10% Generative AI10% Low/No Code Development10% Mobile App Development10% Other Application Development10% UX/UI Design10% Web Development5% E-Commerce Development5% Web DesignAnthill Networks is a custom software development company. Located in Luton, England and Bengaluru, India, the team focuses on Custom Software Development and Mobile App Development.
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$25,000+$25 - $49 / hr10 - 49London, England
Services provided
10% API Development25% Custom Software Development20% Mobile App Development +3 services20% Web Development15% AR/VR Development10% Application TestingCustom software development firm Lumora focuses on Custom Software Development and Mobile App Development. They were launched in 2018.
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$5,000+$25 - $49 / hr2 - 9London, England
Services provided
10% API Development10% AI Development10% Application Management & Support +8 services10% Enterprise App Modernization10% Microservices Architecture Services10% Other Application Development10% UX/UI Design10% Web Design10% Web Development5% Branding5% Market ResearchWeb design agency RiseForge is headquartered in Tiranë, Albania and London, England. The team provides Web Design and UX/UI Design.
Read moreSee All Locations (2)London, England
189 BULLSMOOR WAY
London, England EN8 8HP1
+44 7921 172758
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$10,000+$300+ / hr2 - 9London, England
Services provided
10% API Development30% Custom Software Development10% AI Development +5 services10% Generative AI10% Mobile App Development10% Other Application Development10% Wearable App Development10% Web DevelopmentQxotk.ai, a custom software development company, is in London, England. Founded in 2023, the team specializes in Custom Software Development and Web Development.
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$5,000+$50 - $99 / hr2 - 9Sheffield, England
Services provided
10% API Development20% Cloud Consulting & SI10% AI Development +6 services10% Custom Software Development10% DevOps Managed Services10% Generative AI10% Low/No Code Development10% Mobile App Development10% Web DevelopmentPrimescale Technologies Limited is a small cloud consulting & SI company launched in 2017. Their team offers cloud consulting & SI and Web Development.
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Undisclosed$50 - $99 / hr2 - 9Beechwood Business Park North, England
Services provided
10% API Development40% Custom Software Development20% Mobile App Development +3 services10% DevOps Managed Services10% Enterprise App Modernization10% IoT DevelopmentSMK Digital Ltd is a software development company founded in 2012. The team focuses on Custom Software Development and Mobile App Development and is based in Beechwood Business Park North, England.
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$5,000+$50 - $99 / hr2 - 9London, England
Services provided
10% API Development10% AI Consulting10% AI Development +7 services10% Custom Software Development10% Customer Service Outsourcing10% DevOps Managed Services10% E-Commerce Development10% Generative AI10% IT Strategy Consulting10% Web DevelopmentLaunched in 2023, Algorise LTD is an IT strategy consulting company. The firm offers IT strategy consulting and Custom Software Development.
Read moreMore responsive than most other service providers
Get in TouchAlgorise LTD is very responsive
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$1,000+$50 - $99 / hr2 - 9London, England
Services provided
10% API Development20% IT Managed Services15% ERP Consulting and SI +7 services15% Other IT Consulting and SI10% IT Staff Augmentation10% Web Design5% CRM Consulting and SI5% Custom Software Development5% DevOps Managed Services5% Robotics Process AutomationAugmentX Solutions Limited is an IT managed services company. The team specializes in IT managed services and ERP consulting and SI and is headquartered in London, England and London, England.
Read moreLondon, England
71-75 Shelton Street
London, England WC2H 9JQ1
+65-83199731
See All Locations (2)London, England
71-75 Shelton Street, London, WC2H 9JQ, England
London, England WC2H 9JQ2 - 5
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$5,000+$50 - $99 / hr2 - 9London, England
Services provided
10% API Development20% Engineering20% IoT Development +4 services20% Web Development10% Business Consulting10% Computer Engineering10% Custom Software DevelopmentGrespi Technology is a website development company. Headquartered in London, England, the agency provides Web Development and IoT development.
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UndisclosedUndisclosed2 - 9Belfast, Northern Ireland
Services provided
10% API Development55% Custom Software Development25% Web Development +1 service10% E-Commerce DevelopmentTwo Clouds, a software development company, offers Custom Software Development and Web Development. The firm is in Belfast, Northern Ireland.
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$1,000+$25 - $49 / hr2 - 9Darlington, England
Services provided
10% API Development25% Mobile App Development15% Application Management & Support +4 services15% Application Testing15% E-Commerce Development15% Low/No Code Development5% Web DevelopmentDealFusion Tech Labs Ltd is a mobile app development company. They were established in 2025, and their services include Mobile App Development and E-Commerce Development.
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Undisclosed< $25 / hr2 - 9Orrell, England
Services provided
10% API Development20% Web Development15% AI Development +7 services15% Custom Software Development10% Application Testing10% Generative AI5% Application Management & Support5% DevOps Managed Services5% E-Commerce Development5% Robotics Process AutomationWebsite development company BitRyx Solutions focuses on Web Development and Artificial Intelligence. They are headquartered in Orrell, England.
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Undisclosed$25 - $49 / hr2 - 9Ascot, England
Services provided
10% API Development10% AI Development10% CRM Consulting and SI +7 services10% Cloud Consulting & SI10% Custom Software Development10% DevOps Managed Services10% IoT Development10% Mobile App Development10% Wearable App Development10% Web DevelopmentElios Technology Limited is a custom software development firm. They were established in 2018, and their services include Custom Software Development and DevOps Managed Services.
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Undisclosed$50 - $99 / hr2 - 9London, England
Services provided
10% API Development35% Cybersecurity35% IT Strategy Consulting +4 services5% Application Testing5% Custom Software Development5% Enterprise App Modernization5% Robotics Process AutomationEstablished in 2025, Fig Group is a small London, England-based Cybersecurity company. Their team offers Cybersecurity and IT strategy consulting.
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$5,000+$100 - $149 / hrFreelancerFolkestone, England
Services provided
10% API Development30% Web Development20% DevOps Managed Services +3 services15% AI Consulting15% Mobile App Development10% Custom Software DevelopmentWeb development company stumason.dev was established in 2025. The team provides Web Development and DevOps Managed Services.
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$5,000+$100 - $149 / hrFreelancerDerby, England
Services provided
10% API Development45% IT Strategy Consulting20% Other IT Consulting and SI +2 services15% Cloud Consulting & SI10% Microservices Architecture ServicesGregory Advisory Plus Ltd is an IT strategy consulting company. The company is located in Derby, England. Their services include IT strategy consulting and other IT consulting and SI.
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UndisclosedUndisclosed50 - 249City of London, England
Services provided
20% API Development20% Back Office Outsourcing20% Custom Software Development +4 services10% Blockchain10% Cloud Consulting & SI10% IT Managed Services10% Web DevelopmentPETADATA is a software development company. They are in Fremont, California and Hyderabad, India and have midsize team. They offer Custom Software Development and Back Office Outsourcing.
Read moreSee All Locations (3)City of London, England
27 Old Gloucester St
City of London, England WC1N 3AX+44 7574 710788
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UndisclosedUndisclosed1,000 - 9,999London, England
Services provided
10% API Development10% Application Testing10% Cloud Consulting & SI +7 services10% Computer Engineering10% Custom Software Development10% DevOps Managed Services10% Generative AI10% Mobile App Development10% Product Design10% UX/UI DesignLocated in London, England, AND Digital is an user experience company. They specialize in UX/UI Design and Product Design.
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UndisclosedUndisclosed50 - 249London, England
Services provided
20% API Development40% CRM Consulting and SI20% IT Strategy Consulting +1 service20% Robotics Process AutomationMidsize CRM consulting and SI company Infomentum, is located in London, England. Their services include CRM consulting and SI and IT strategy consulting.
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UndisclosedUndisclosed50 - 249London, England
Services provided
20% API Development40% BI & Big Data Consulting & SI40% Cloud Consulting & SILaunched in 2010, BigData Dimension is a midsize business intelligence company. Their services include BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosed50 - 249London, England
Services provided
20% API Development20% DevOps Managed Services20% Marketing Strategy +2 services20% Search Engine Optimization20% Web DevelopmentLumar is a midsize Marketing Strategy company established in 2015. Their services include Marketing Strategy and Search Engine Optimization.
Read moreSee All Locations (2)London, England
Warnford Court, 29 Throgmorton Street
London, England EC2N 2AT16 - 20
+44 20 7822 8670
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UndisclosedUndisclosed250 - 999London, England
Services provided
10% API Development40% Application Testing20% AI Development +2 services20% Custom Software Development10% Cloud Consulting & SIExactpro, an Application Testing company, was launched in 2009. The midsize team specializes in Application Testing and Custom Software Development.
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UndisclosedUndisclosed2 - 9London, England
Services provided
20% API Development40% BI & Big Data Consulting & SI40% Custom Software DevelopmentGrabzIt Limited, a business intelligence company, specialize in BI & big data consulting & SI and Custom Software Development. They were established in 2013.
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UndisclosedUndisclosed50 - 249London, England
Services provided
10% API Development20% Application Testing20% Architectural Design +4 services20% Custom Software Development10% Business Continuity Management10% IT Managed Services10% IT Strategy ConsultingLaunched in 2013, KWA Analytics is a midsize Architectural Design company. Their services include Architectural Design and Custom Software Development.
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UndisclosedUndisclosed10 - 49City of London, England
Services provided
10% API Development30% Cybersecurity20% Application Testing +3 services20% BI & Big Data Consulting & SI10% Custom Software Development10% IT Managed ServicesHeadquartered in City of London, England and Dehradun, India, RedHunt Labs is a small Cybersecurity company. Their services include Cybersecurity and BI & big data consulting & SI.
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UndisclosedUndisclosed2 - 9London, England
Services provided
10% API Development20% BI & Big Data Consulting & SI20% Custom Software Development +4 services20% IT Strategy Consulting10% Blockchain10% E-Commerce Development10% UX/UI DesignBudak Digital Limited is an IT strategy consulting company launched in 2018. The small team offers IT strategy consulting and BI & big data consulting & SI.
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List of the Top 15 United Kingdom API Development Services
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$25,000+$25 - $49 / hr1,000 - 9,999St Albans, England
Ability to deliver
36.3/40.016.6/20 Reviews9.9/10 Clients & Experience9.8/10 Market PresenceService focus
10% API Development90% Other -
$5,000+< $25 / hr50 - 249Stamford, England
Ability to deliver
36.8/40.018.8/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
34.9/40.015.8/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr10 - 49Wangford, England
Ability to deliver
32.9/40.017.6/20 Reviews10/10 Clients & Experience5.3/10 Market PresenceService focus
10% API Development90% Other -
$100,000+Undisclosed10 - 49London, England
Ability to deliver
32.2/40.014.8/20 Reviews7.6/10 Clients & Experience9.8/10 Market PresenceService focus
15% API Development85% Other -
$10,000+$50 - $99 / hr10 - 49Manchester, England
Ability to deliver
32.2/40.017/20 Reviews9/10 Clients & Experience6.2/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr10 - 49Manchester, England
Ability to deliver
31.4/40.016.8/20 Reviews10/10 Clients & Experience4.6/10 Market PresenceService focus
12% API Development88% Other -
$25,000+$300+ / hr10 - 49London, England
Ability to deliver
31.1/40.015.6/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
14% API Development86% Other -
$10,000+$25 - $49 / hr10 - 49London, England
Ability to deliver
30.5/40.017/20 Reviews9.5/10 Clients & Experience4/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$100 - $149 / hr2 - 9Huntingdon, England
Ability to deliver
30.3/40.016.6/20 Reviews9.1/10 Clients & Experience4.6/10 Market PresenceService focus
10% API Development90% Other -
$75,000+$150 - $199 / hr10 - 49Otford, England
Ability to deliver
29.9/40.016.4/20 Reviews8.1/10 Clients & Experience5.5/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$100 - $149 / hr10 - 49Belfast, Northern Ireland
Ability to deliver
29.4/40.016.6/20 Reviews7.5/10 Clients & Experience5.3/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr50 - 249London, England
Ability to deliver
28.9/40.016/20 Reviews7.6/10 Clients & Experience5.3/10 Market PresenceService focus
11% API Development89% Other -
$10,000+$50 - $99 / hr2 - 9London, England
Ability to deliver
28.9/40.016.4/20 Reviews7.3/10 Clients & Experience5.2/10 Market PresenceService focus
10% API Development90% Other -
$1,000+< $25 / hr50 - 249Slough, England
Ability to deliver
27.8/40.015.8/20 Reviews6/10 Clients & Experience6/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr10 - 49London, England
Ability to deliver
26.5/40.016.8/20 Reviews4.2/10 Clients & Experience5.5/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$100 - $149 / hr10 - 49Bournemouth, England
Ability to deliver
26.4/40.017.2/20 Reviews4/10 Clients & Experience5.2/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$100 - $149 / hr2 - 9Liverpool, England
Ability to deliver
24.9/40.017/20 Reviews3.9/10 Clients & Experience4/10 Market PresenceService focus
15% API Development85% Other -
$50,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
24.6/40.015.6/20 Reviews3.7/10 Clients & Experience5.3/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$100 - $149 / hr10 - 49London, England
Ability to deliver
23.3/40.016.6/20 Reviews2.2/10 Clients & Experience4.6/10 Market PresenceService focus
20% API Development80% Other -
$10,000+$150 - $199 / hr2 - 9Darrington, England
Ability to deliver
24.6/40.016.4/20 Reviews3.1/10 Clients & Experience5.2/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
23.5/40.018.2/20 Reviews0/10 Clients & Experience5.3/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
22.3/40.017/20 Reviews0/10 Clients & Experience5.3/10 Market PresenceService focus
20% API Development80% Other -
$5,000+$50 - $99 / hr10 - 49Surfleet, England
Ability to deliver
22.2/40.017.6/20 Reviews0/10 Clients & Experience4.6/10 Market PresenceService focus
20% API Development80% Other -
$10,000+$100 - $149 / hr10 - 49Warrington, England
Ability to deliver
23.2/40.016.6/20 Reviews1.4/10 Clients & Experience5.2/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$50 - $99 / hr2 - 9Leicester, England
Ability to deliver
22.3/40.016.4/20 Reviews1.3/10 Clients & Experience4.6/10 Market PresenceService focus
20% API Development80% Other -
$5,000+Undisclosed10 - 49London, England
Ability to deliver
21.5/40.016.6/20 Reviews0/10 Clients & Experience4.9/10 Market PresenceService focus
20% API Development80% Other -
$10,000+$100 - $149 / hr10 - 49Birmingham, England
Ability to deliver
22/40.016.4/20 Reviews0/10 Clients & Experience5.6/10 Market PresenceService focus
15% API Development85% Other -
$5,000+$50 - $99 / hr2 - 9Lytchett Matravers, England
Ability to deliver
21/40.016.4/20 Reviews0/10 Clients & Experience4.6/10 Market PresenceService focus
25% API Development75% Other -
Undisclosed$50 - $99 / hr10 - 49Altrincham, England
Ability to deliver
21.4/40.017.4/20 Reviews0/10 Clients & Experience4/10 Market PresenceService focus
15% API Development85% Other
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