Top 100 JavaScript Development Companies in the United Kingdom
The Best of September 2024
Looking 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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31
- $1,000+
- 10 - 49 employees
- London, England
Agile Digital Agency is a marketing technology agency based in London. The agency has a team of less than ten that provides email marketing, SEO, and other digital marketing services to small and midmarket companies and institutions.
Clients
- Singleton Law Firm (USA)
Industries
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32
- $5,000+
- 10 - 49 employees
- London, England
Solar Digital is a development-focused digital agency based in Odessa, Ukraine. Founded in 2016, Solar Digital has a team of 28 employees. They provide branding, UI/UX design, web development, and mobile app development services to a diverse and global client base.
Clients
- Stark Shipping (analytical portal of marine industry
Industries
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33
- $25,000+
- 10 - 49 employees
- London, England
Filter Digital, a website development company, was launched in 2016. Their small team is headquartered in London, United Kingdom. The agency focuses on web development, mobile app development, custom software development, and digital strategy.
Clients
- Ennismore
Industries
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34
- $25,000+
- 10 - 49 employees
- Farnham, England
Valiant Design is a strategic creative agency located in Farnham, England. They have about 13 teammates. Since 2010, they have provided branding, web design, and packaging design services to primarily midmarket agencies in the health care and medical, business services, and manufacturing industries.
Clients
- Contec Inc
Industries
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35
- $5,000+
- 10 - 49 employees
- London, England
Based in London, United Kingdom, Goodspeed is a website development firm. The small firm was founded in 2022. Their services include web development, custom software development, and mobile app development.
Industries
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36
- $25,000+
- 50 - 249 employees
- London, England
Empat is a digital agency based in Kyiv, Ukraine, and founded in 2013. With no more than 50 professionals, they provide e-commerce, web, and mobile app development solutions for clients in the industries of financial, dental, and healthcare services.
Clients
- We are focused on small and medium companies and startups, guiding them through all stages of development. Our clients achieve remarkable success, like Obimy with 10M+ downloads, and Monitree, built for the NHS. We deliver beyond expectations.
Industries
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37
- $50,000+
- 1,000 - 9,999 employees
- London, England
Andersen is an international custom software development company that, among other things, specializes in healthcare software development. Since its founding in 2007, the company has opened more than ten development centers and about ten sales offices worldwide. More than 2700 highly qualified specialists work on developing, customizing corporate IT solutions, web applications, and mobile applications. Andersen has completed over 950 projects and received hundreds of positive reviews from clients worldwide. Today the company is working on over 250 projects. Our technology stack includes .NET, C#, Java, Python, PHP, Node.js, TypeScript, Golang, C++, JavaScript, Angular, React.js, Vue.js, HTML, CSS, Java (Android), Swift / Objective C (iOS), React Native, and more. We also offer manual and automated testing, business and data analysis, UI/UX design, DevOps services, IT security management, and L1, L2, L3 support.
Clients
- Samsung
Industries
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38
- $5,000+
- 50 - 249 employees
- Northfleet, England
Established in 2011, iConnect info solutions pvt ltd is a web development firm. They are headquartered in Navi Mumbai, India and London, United Kingdom and have a small team. Their services include web development, IT staff augmentation, mobile app development, and cloud consulting & SI.
Industries
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39
- $10,000+
- 10 - 49 employees
- London, England
Hiyield is a small website development firm located in St. Austell, United Kingdom. Launched in 2018, the team focuses on web development, custom software development, ux/ui design, application management & support, and more.
Industries
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40
- $100,000+
- 10 - 49 employees
- Sarratt, England
Clock Limited is a digital design and build company. Founded in 1997, the company is headquartered in Kings Langley, United Kingdom. They have a team of around 35 employees who focus on custom software, web, and mobile app development.
Clients
- Riot Games
- Mythical Society
- Hearst
- International Tennis Federation
Industries
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41
- $5,000+
- 50 - 249 employees
- London, England
Web development firm Rafiki was established in 2023. The company provides web development, product design, IT managed services, and Artificial Intelligence and has a midsize team. The company is based in London, United Kingdom.
Industries
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42
- $25,000+
- 50 - 249 employees
- London, England
Located in Ahmedabad, India with additional offices in the US and UK, Innovify has been delivering high quality solutions since 2011. Although the team of nearly 130 specializes in mobile app development, they also engage in growth hacking, consulting, and UX design.
Clients
- ARM INC
Industries
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43
- $25,000+
- 50 - 249 employees
- London, England
Specbee Consulting Services is a development firm that was founded in 2015. It has locations in Atlanta, New York, Toronto, and Bangalore, India. Its team of 39 helps clients with web development, e-commerce development, and mobile app development.
Clients
- Georgia Tech
Industries
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44
- $10,000+
- 50 - 249 employees
- London, England
Founded in 2010, PioGroup Software is a development company based in Kharkiv, Ukraine. They have a small team of fewer than 50 people, and they primarily work with small businesses.
Clients
- Moving Pipe
Industries
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45
- $25,000+
- 10 - 49 employees
- London, England
Together is a full-service agency that builds brands, websites and digital products for good tech companies around the world.
Clients
- Unit
Industries
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46
- $5,000+
- 10 - 49 employees
- London, England
RCCO - Creative Sales & Marketing, an user experience design agency, is located in London, United Kingdom. Launched in 2018, the small team specializes in ux/ui design, branding, digital strategy, and web design.
Industries
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47
- $10,000+
- 50 - 249 employees
- London , England
Web development firm Wise Vision was founded in 2018. The agency provides web development, e-commerce development, accounting, enterprise app modernization, and more and has a small team. The agency is in L'viv, Ukraine.
Clients
- Beep Auto
Industries
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48
- $5,000+
- 10 - 49 employees
- London, England
ExpandX is a web services provider and digital marketing agency headquartered in Sofia, Bulgaria. It also has locations in London, New York, Munich and Barcelona. The company was founded in 2015 serving clients globally with projects of different sizes and niches. ExpandX provides web development services, e-commerce solutions, social media marketing, PPC, web design, video marketing, and other related digital services.
Clients
- High Touch Investment Corp Inc (USA)
Industries
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49
- $25,000+
- 10 - 49 employees
- Basingstoke, England
Headquartered in Basingstoke, United Kingdom and Lincoln, United Kingdom, Profound is a digital strategy and user experience design agency. The small company was established in 2005. Their services include digital strategy and ux/ui design.Read MoreIndustries
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50
- $50,000+
- 10 - 49 employees
- London, England
NEVERBLAND is a web development firm. They provide web development, web design, ux/ui design, custom software development, and more and were launched in 2010. Their small team is London, United Kingdom-based.
Clients
- Togetherall
Industries
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51
- $50,000+
- 250 - 999 employees
- Farnborough, England
One Beyond is a bespoke software development and digital transformation company headquartered in London with additional engineering centers in Madrid (Spain), Budapest & Szeged (Hungary) and Bucharest (Romania). Across international locations, they have a team of more than 350 individuals providing custom software, web and mobile application development and large- scale digital transformation to a diverse clientele.They support large established businesses, nonprofits, government organizations, and VC-funded startups
Clients
- Smith & Nephew
Industries
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52
- $10,000+
- 50 - 249 employees
- London, England
Codest is a software development company that was founded in 2009 and has offices in Krakow and Warsaw, Poland. They have 40 employees specialized in the end-to-end building of custom products, primarily for companies in e-commerce, marketplace, adtech, fintech, proptech and SaaS. Services include backend, frontend and product design.
Clients
- Mixfit Inc. (CH)
Industries
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53
- $100,000+
- 50 - 249 employees
- Edinburgh, Scotland
xDesign is a design and development company in Edinburgh, U.K. Founded in 2010, their team of 50+ provides web development and mobile app development services to small business, midmarket, and enterprise clients across various industries.
Clients
- PayPal
Industries
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54
- $75,000+
- 50 - 249 employees
- London, England
Web development company 10up is headquartered in Sacramento, California; Boston, Massachusetts; New York, New York and London, United Kingdom. The agency provides web development, ux/ui design, web design, digital strategy, and more and is midsize.The agency was established in 2011.
Industries
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55
- $10,000+
- 2 - 9 employees
- London, England
Webpop Design is a web design agency based In London. Founded in 2008, their small team is known for their UX/UI design, branding and SEO efforts as well. They work primarily with small businesses in multiple industries.
Clients
- Datameer
Industries
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56
- $25,000+
- 50 - 249 employees
- Croydon, England
Founded in 2005 and headquartered in Croydon, UK, GoodCore Software specializes in bespoke software development. WIth a team of about 50 employees, the company offers web and mobile app development to startups and established businesses alike. Engagement options include fixed- cost and dedicated development teams.
Clients
- PMLL
- GCBF
- Hirevine
- London Women's Clinic
Industries
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57
- $10,000+
- 10 - 49 employees
- London, England
Old.St Labs is a software development business based in London. The business, founded in 2020, has a team of more than ten that provides custom software development, mobile app development, UX/UI design, web design & development, and AI services. Old.St Labs serves small and mid-market companies in the advertising & marketing, education, financial services, health care & medical, and legal industries.
Clients
- Kopona
Industries
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58
- $25,000+
- 250 - 999 employees
- London , England
RNDpoint (former PST Labs) is a London-based development firm. The team of over 50 provides mobile app, custom software and web development services. Founded in 2014, they primarily serve enterprise businesses in the financial services industry.
Clients
- First Abu Dhabi Bank
- Basis Bank
- FICO
- TeraData
Industries
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59
- $25,000+
- 10 - 49 employees
- Manchester, England
Based in Manchester, UK, Corporation Pop has been around for over a decade and is now an established part of the mobile and web development industry. The small team delivers powerful results to clients across several industries.
Industries
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60
- $5,000+
- 10 - 49 employees
- London, England
An'n'Bo - Interface Studio is a studio founded in Rivne, Ukraine in 2017 with no more than 10 experts. They specialize in UX/UI, product, and web design solutions for small and mid-market firms in the fields of IT, consumer products, and business services.
Clients
- OLX
Industries
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