Top 100 JavaScript Development Companies in the United Kingdom
The Best of December 2025Looking for a top JavaScript developer in the United Kingdom?
If you're hiring a JavaScript developer to help you build or update a website that's responsive and interactive, consider the pros and cons of JavaScript as a programming language. Advantages include its speed because it's executed on the client-side; reduction in server load; and diverse functionality. Disadvantages to consider include security such as bugs on the client-side.
To assist you in your search for a partner, we’ve compiled this list of the top JavaScript development agencies in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United Kingdom JavaScript Developers
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361$1,000+10 - 49 employeesLondon, EnglandRead More
eDesk Solutions is a digital agency in Karachi, Pakistan. Founded in 2018, they have fewer than 5 employees that serve mostly small-business and midmarket clients in the e-commerce, advertising, and business sectors. Services include web development, graphic design, and mobile app development.
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Sam99p.co.ukIndustries
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362$1,000+2 - 9 employeesLeeds, EnglandClear Horizon Digital is a small cloud consulting & SI company in Ranby, United Kingdom. They offer cloud consulting & SI, web development, e-commerce development, custom software development, and more and were launched in 2022.Read More
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363$10,000+10 - 49 employeesLondon, EnglandRead More
Aegasis Labs is an artificial intelligence company. The small team is in London, United Kingdom. Their services include Artificial Intelligence, custom software development, BI & big data consulting & SI, blockchain, and more.
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364$5,000+2 - 9 employeesEdinburgh, ScotlandRead More
Passio is a small user experience agency. The Edinburgh, United Kingdom-based company was launched in 2016. Their team provides ux/ui design, mobile app development, product design, web design, and more.
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365$25,000+10 - 49 employeesLeeds, EnglandRead More
Ventureaxis is a small custom software development firm. Established in 2003, the agency is in Leeds, United Kingdom. Their services include custom software development, web development, enterprise app modernization, and mobile app development.
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366$25,000+50 - 249 employeesLondon, EnglandIntegrella 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.Read More
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367$25,000+10 - 49 employeesGuildford, EnglandCommunere Ltd is a website development company located in Guildford, United Kingdom. Established in 2012, the small team focuses on web development, custom software development, mobile app development, Artificial Intelligence, and more.Read More
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AgxioIndustries
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368$1,000+10 - 49 employeesManchester, EnglandRead More
DEVSTUDIO TECHNOLOGIES LTD is a software development company in Huddersfield, United Kingdom and Lahore, Pakistan. The small company was founded in 2018. Their services include custom software development, web development, mobile app development, web design, and more.
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369$1,000+10 - 49 employeesLondon, EnglandRead More
Based in London, United Kingdom, Xtreme Web Tech is a branding agency. The agency offers branding, social media marketing, search engine optimization, web design, and more and is small.The agency was established in 2013.
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370$25,000+10 - 49 employeesStoke-on-Trent, EnglandAware Digital is an e-commerce development company. They provide E-Commerce Development, Web Design, Web Development, Marketing Strategy, and more and were founded in 2018. Their small team is Stoke-on-Trent, England-based.Read More
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371Undisclosed10 - 49 employeesLondon, EnglandRead More
SmallGiants is a web development firm in London, United Kingdom. The small firm was founded in 2018. Their team provides web development, ux/ui design, application management & support, advertising, and more.
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372$1,000+2 - 9 employeesLondon, EnglandRead More
Cloudavity Consulting LTD is a consultancy founded in 2018. Their team of fewer than 10 provides cloud consulting and web development solutions from their office in London. They work with clients in industries such as business services, financial services, and IT solutions.
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KenoIndustries
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373$1,000+50 - 249 employeesLondon, EnglandRead More
Midsize IT managed services company Smart Working, is located in London, United Kingdom. Established in 2020, the team focuses on IT managed services, other IT consulting and SI, and IT staff augmentation.
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374$100,000+50 - 249 employeesLondon, EnglandRead More
TechPods is an IT firm based in Sofia, Bulgaria, and founded in 2018. With over 10 employees, they provide IT staff augmentation, custom software development, and web development services for small and medium-sized businesses alike.
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Arctic ShoresIndustries
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375$25,000+10 - 49 employeesRugby, EnglandRead More
CoreScripts Technologies LLP is a software development house headquartered in Pune, India. Founded in 2018, their team of 8–10 employees specializes in custom software development. They also offer BI and analytics, testing and QA, and cloud migration services.
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376$1,000+2 - 9 employeesFulham, EnglandRead More
Lisa Web Design is a web agency based in Küçükçekmece, Turkey with more than two employees. They have offered web design, custom software development, and web development solutions since their founding in 2013.
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Novarch E-CommerceIndustries
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377$1,000+10 - 49 employeesLondon, EnglandWebtech is a custom software development firm. They specialize in Custom Software Development, Web Development, UX/UI Design, ERP consulting and SI, and more and were founded in 2021. Their small team is in London, England.Read More
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378$10,000+2 - 9 employeesGuilden Morden, EnglandRead More
Crowers Limited, a custom software development company, is based in Guilden Morden, United Kingdom. The company specializes in custom software development, mobile app development, web development, web design, and more and has a small team.The company was founded in 2017.
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XylemIndustries
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379$1,000+10 - 49 employeesLondon, EnglandRead More
Zenibyte Creative Ltd is a small London, United Kingdom-based e-commerce development firm. The team specializes in e-commerce development, mobile app development, web development, web design, and more.
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380$10,000+2 - 9 employeesLondon, EnglandRead More
O'Dwyer Software is a London-based software company founded in 2014 with a team of more than two experts. They specialize in web development, custom software development, and application testing for clients ranging from small businesses to large firms.
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GFKIndustries
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381$1,000+Freelancer employeesGateshead, EnglandRead More
Established in 2009, Baltic Design is an e-commerce development firm. The small Gateshead, United Kingdom-based team provides e-commerce development, web development, and web design.
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382Undisclosed10 - 49 employeesLondon, EnglandRead More
Activate Media is a London-based digital design and development agency. Founded in 1992, the team of 15 specializes in web development and design, UX/UI design, digital strategy, and more. They work with midmarket businesses, small businesses, and enterprises.
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Agri-Pro Focus -
383$10,000+10 - 49 employeesLondon, EnglandOnekode, Software Development Company is an application development firm launched in 2023. The company focuses on Mobile App Development, Low/No Code Development, Web Development, Web Design, and more and has a small team. The company is located in Islamabad, Pakistan and London, England.Read More
Clients
Ayjynt Vanalyzer Capstone Real Estate Trelix – A Heavy Machinery Rental PlatformIndustries
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384$1,000+10 - 49 employeesDenton, EnglandSmall website development company DevOasis Technologies, is located in Denton, United Kingdom and Lahore, Pakistan. Established in 2023, the team offers web development, mobile app development, custom software development, and ux/ui design.Read More
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385$10,000+50 - 249 employeesLondon, EnglandLaunched in 2020, Moonshot Partners is a IT strategy consulting company. The midsize team offers IT strategy consulting, custom software development, web development, mobile app development, and more. The agency is headquartered in London, United Kingdom.Read More
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386$10,000+2 - 9 employeesDarrington, EnglandRead More
Tucanoo Solutions Ltd is a small custom software development company. They offer custom software development, enterprise app modernization, other application development, and web development and were launched in 2011.
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387$25,000+50 - 249 employeesReading, EnglandWorth Digital is a web design agency. They are in Reading, England and Rijswijk, Netherlands. Their team provides Web Design and UX/UI Design.Read More
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388$5,000+2 - 9 employeesLondon, EnglandFounded in 2021, Nova Digital Agency is a advertising company. Their small team is in London, United Kingdom and London, United Kingdom and specializes in advertising, branding, conversion optimization, search engine optimization, and more.Read More
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389$1,000+10 - 49 employeesLondon, EnglandOlive IT is a digital strategy company based in London, England and Dhaka, Bangladesh. The small team specializes in digital strategy, search engine optimization, web development, e-commerce development, and more. The firm was established in 2022.Read More
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390$10,000+10 - 49 employeesLondon, EnglandRead More
Codepunch Ltd is a London, United Kingdom-based mobile application development firm. The small team specializes in mobile app development, web development, custom software development, web design, and more. The company was launched in 2022.
Industries
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