Top 100 JavaScript Development Companies in London
The Best of April 2024
Looking for a top JavaScript developer in London?
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 London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
>List of the Best London JavaScript Developers
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31
- $10,000+
- 2 - 9 employees
- London, United Kingdom
56 Degrees is a web development agency with a team of under 10 employees. Based in London and founded in 2010, they provide web development, web design, and e-commerce development services.
Clients
- GiffGaff Studio
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32
- $5,000+
- 10 - 49 employees
- London, United Kingdom
OSOM Studio is an interactive online solutions provider founded in 2011, based in Lodz, Poland, with an office in Warsaw, Poland. Their team of 15 employees provides web development, UX/UI design, and e-commerce development services to small, midmarket, and enterprise businesses alike.
Clients
- IKEA
Industries
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33
- $50,000+
- 10 - 49 employees
- London, United Kingdom
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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34
- $25,000+
- 250 - 999 employees
- London , United Kingdom
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
Industries
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35
- $5,000+
- 10 - 49 employees
- London, United Kingdom
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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36
- $5,000+
- 10 - 49 employees
- London, United Kingdom
Mifort is a web development firm. Founded in 2015, the team focuses on web development and mobile app development. Their small company is Tallinn, Estonia-based.
Industries
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37
- $25,000+
- 50 - 249 employees
- Croydon, United Kingdom
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
- Printed Music Licensing
Industries
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38
- $10,000+
- 50 - 249 employees
- London, United Kingdom
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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39
- $10,000+
- 50 - 249 employees
- London, United Kingdom
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
- Porsche
Industries
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40
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Thoughtbot is a web and mobile app development company based in Boston, MA with offices in Austin, San Francisco, New York, Raleigh, Washington D.C, and London. Since 2003, this 50+ team has delivered empowering digital solutions to enterprise-level and small companies alike.
Clients
- Health Match 360
Industries
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41
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Powercode is a web development agency based in Kyiv, Ukraine founded in 2015. They are operated by a team of 66 who are experts in web, mobile app, and custom software development for clients ranging from startups to enterprises. They have experience working in industries such as financial services, business services, and IT. They are also familiar with working with platforms like Amazon, Linux servers, and Azure, among others.
Industries
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42
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Kernelics is a software development company founded in 2020 with over 50 employees. They provide web development, mobile app development, and AI solutions from their office in Minsk, Belarus. They work with small businesses across various industries.
Industries
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43
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Purr Digital is a software development agency that has been offering web development, mobile app development, and custom software development to their small business and mid-market clients in the hospitality, arts and entertainment, and consumer products and services industries since 2013. Their 50 employees are based out of their London and Birmingham, UK offices.
Clients
- Elder
Industries
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44
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Founded in 2010, Magora is a 50+ team of web and mobile app designers and developers based in London. Whether it’s B2B or B2C, the firm creates bespoke software that integrates with existing business solutions to enable user-centered interaction and scalable software architecture.
Clients
- Danone
Industries
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45
- $50,000+
- 50 - 249 employees
- London, United Kingdom
Supercharge is a digital production firm that is headquartered in Budapest, Hungary with a second office in London. Founded in 2010, Supercharge's team of more than 100 employees specializes in web and mobile app development. The firm also offers UI/UX design services to its clients.
Industries
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46
- $10,000+
- 50 - 249 employees
- London, United Kingdom
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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47
- $10,000+
- 10 - 49 employees
- London , United Kingdom
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
- $1,000+
- 10 - 49 employees
- London, United Kingdom
W3 Lab Digital Solutions, a web development firm, was established in 2016. The firm specializes in web development, conversion optimization, pay per click, search engine optimization, and more and has a small team.Read MoreIndustries
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49
- $25,000+
- 2 - 9 employees
- London, United Kingdom
Hero Team is a digital agency located in London. Founded in 2018, their services include mobile app and web development in addition to UX/UI design. Their team of 3 works with small businesses.
Clients
- Hugo
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50
- $5,000+
- 10 - 49 employees
- London, United Kingdom
Plug & Play is a UX/UI agency based in London and Surrey. Founded in 2007, they are specialists in user experience and user interface design for software, websites and custom applications. They also have a front-end development service to support clients with the design implementation. Plug & Play work across a number of sectors with their clients ranging from funded startups to large corporations such as Legal & General.
Clients
- WWF
Industries
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51
- $5,000+
- 10 - 49 employees
- London, United Kingdom
Indie Ridge Limited is a small web design company located in London, United Kingdom. Established in 2016, the team specializes in web design, web development, ux/ui design, e-commerce development, and more.
Industries
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52
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Rattlesnake Group is a web design company. Established in 2020, the team offers web design, marketing strategy, product design, branding, and more. Their small firm is London, United Kingdom-based.
Industries
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53
- $10,000+
- 10 - 49 employees
- Guildford, United Kingdom
Founded in 2009, Lightflows is a development company based in Guildford, U.K. They primarily work with midmarket clients from various industries including advertising, marketing, business services, consumer products, finance, and healthcare.
Clients
- HomeViews
Industries
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54
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Founded in 2014, SoBold is a design and development agency headquartered in London. Their team of 10 specialize in web development, web design, print design, and social media marketing services for clients. Their clients primarily work with with small and mid market companies in the education, health care, hospitality, energy, and consumer product industries.
Clients
Industries
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55
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Xenia Tech is a development agency founded in 2017 with fewer than 50 members. Based in Da Nang, Vietnam, they are experts in web development, mobile app development, and web design for small businesses in the fields of IT, business services, and advertising.
Clients
- nClud agency
Industries
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56
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Freshcode is a software development company from Zaporizhzhya, Ukraine. Since it was founded in 2014, the team has since grown to about 47 employees. Freshcode offers custom software, web, and mobile app development mostly for small and mid-size companies.
Clients
- tchop
Industries
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57
- $50,000+
- 50 - 249 employees
- London, United Kingdom
Thinslices is a web development company. They are headquartered in Iasi, Romania and have a midsize team that offers web development, mobile app development, and ux/ui design. The agency was established in 2010.
Industries
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58
- $25,000+
- 2 - 9 employees
- London, United Kingdom
Powered By Coffee is a London, United Kingdom-based website development firm. Launched in 2011, the small team focuses on web development, e-commerce development, web design, digital strategy, and more.
Clients
- Key Media
Industries
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59
- $25,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Robosoft Technologies is a full-service digital experiences agency offering digital advisory, design strategy, UX/UI services, application development & maintenance and expertise in emerging technologies such as AR, VR, blockchain, chatbots and more. Established in 1996 and headquartered in San Francisco, the team of 500+ has offices in Mumbai, Udupi, Bengaluru, Chicago, and New York.
Clients
- Warner Bros. Discovery
Industries
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60
- $10,000+
- 10 - 49 employees
- London, United Kingdom
CodeLeap is a London, United Kingdom-based application development firm. The small team specializes in mobile app development, web development, Artificial Intelligence, AR/VR development, and more. The company was founded in 2019.
Industries
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