Top 100 JavaScript Development Companies in London

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Top 100 JavaScript Development Companies in London

March 2023

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. 

Jump to Most Reviewed Companies

List of the Best London JavaScript Developers

  • 211
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom
    UX design agency 100 Shapes was established in 2011. Their small team is based in London, United Kingdom and provides ux/ui design, custom software development, digital strategy, and web development.

    Industries

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  • 212
    • $1,000+
    • 2 - 9 employees
    • London, United Kingdom

    KC Services, a web development firm, was launched in 2020. Their small team is in London, United Kingdom and focuses on web development, web design, and search engine optimization.

    Notable Project

    The Pixxel Agency developed and designed a brand new website for an HR services company. They provided three design templates for the client to choose from.

    "Not only were they quick, but they also did a fantastic job."

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  • 213
    • Scheduling

      4.6
    • Quality

      4.6
    • Cost

      4.2
    • NPS

      4.7
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    • $25,000+
    • 2 - 9 employees
    • London, United Kingdom

    ARCH is a digital solutions firm specializing in the design, development, and hosting of websites, mobile apps, and business systems. They also have extensive experience in e-commerce, intranet, e-learning, CMS and CRM systems. Founded in 2005 and headquartered in London, with an office in Gateshead, U.K., their team consists fo fewer than 10 employees. 
     

    Clients

    • Nestle
    • So Vegan
    • NHS Engalnd
    • SKIN

    Industries

    Notable Project

    ARCH developed a mobile app for an independent charity, mainly focusing on the app's UX. They initially had a discovery meeting to identify the client's goals and agreed on the project's scope and technology. 

    "The initial response has been great."

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  • 214
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom

    Founded in 2006, Design Direct UK is a software development firm. Their small team is based in London, United Kingdom. Their team offers custom software development, ux/ui design, mobile app development, web design, and more.

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  • 215
    • $1,000+
    • 2 - 9 employees
    • London, United Kingdom
    StressFree Sites, an application development company, is located in London, United Kingdom. The small team provides mobile app development, web development, and custom software development. The firm was launched in 2011.
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  • 216
    • $1,000+
    • 10 - 49 employees
    • LONDON, United Kingdom
    SEOviser is a small SEO agency. Based in Dhaka, Bangladesh and LONDON, United Kingdom, the firm was launched in 2010. Their services include search engine optimization, web development, other digital marketing, and content marketing.

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  • 217
    • $5,000+
    • 2 - 9 employees
    • London, United Kingdom
    Based in London, United Kingdom, Ramp is a web development company. The small team offers web development, web design, and ux/ui design and was established in 2022.
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  • 218
    • $1,000+
    • 2 - 9 employees
    • London, United Kingdom
    MLC, a small graphic design company, is located in London, United Kingdom. Founded in 2017, the team focuses on graphic design, ux/ui design, video production, web design, and more.

    Industries

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  • 219
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
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    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Linum Labs is a small Basel, Switzerland-based blockchain company. They specialize in blockchain, custom software development, and product design and were established in 2016.

    Clients

    • Deloitte
    • KPMG
    • Barclays
    • Nifty

    Industries

    Notable Project

    Linum Labs designed and developed an NFT marketplace for an NFT and blockchain startup. They used Solidity for smart contracts and React for the frontend. For payments, the team used Ethereum and Stripe.

    “Linum Labs went the extra mile to act like a member of our team.”

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  • 220
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Software development company Zonalgo is in Karachi, Pakistan. The agency provides custom software development, web development, mobile app development, and e-commerce development and is midsize.The agency was launched in 2010.

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  • 221
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom
    Hallam is a digital strategy company. They are based in London, United Kingdom and Nottingham, United Kingdom and have a midsize team. Their services include digital strategy, web design, web development, conversion optimization, and more.

    Industries

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  • 222
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    QTech Networks, an application development company and web development firm, was founded in 1999. The agency provides mobile app development and web development and has a small team. The agency is located in Amman, Jordan and Dubai, United Arab Emirates.

    Industries

    Notable Project

    A civil society organization hired QTech Networks to develop a web and mobile app and provide video production services. The team created a platform with multiple features and video animation for promotion.

    "The team's quality of the work was excellent."

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  • 223
    • Scheduling

      5.0
    • Quality

      4.5
    • Cost

      5.0
    • NPS

      4.0
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    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    Bleakers is a mobile & app marketing company. The small London, United Kingdom-based team focuses on mobile & app marketing, custom software development, web design, web development, and more. The firm was founded in 2022.

    Clients

    • Jooble
    • NEAR.Foundation
    • Hyundai
    • LG Electronics

    Industries

    Notable Project

    Bleakers designed a web and mobile app for a startup. After discussing various development tools, they decided to use Flutter to design the app and executed front- and backend development.

    "They provided a personalized approach, business advice, and well-done development."

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  • 224
    • $25,000+
    • 2 - 9 employees
    • London, United Kingdom
    Moodio is a small web development company launched in 2015. Their team specializes in web development, mobile app development, custom software development, and other application development. The firm is in London, United Kingdom.

    Industries

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  • 225
    • $10,000+
    • 10 - 49 employees
    • Dartford, United Kingdom
    Founded in 1997, mso web agency is a web design company and website development company. The small Dartford, United Kingdom-based team focuses on web design and web development.

    Industries

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  • 226
    • $25,000+
    • 2 - 9 employees
    • London, United Kingdom
    Pixie Labs is a London, United Kingdom-based custom software development firm. The small company was launched in 2013. Their services include custom software development, Artificial Intelligence, e-commerce development, ux/ui design, and more.

    Industries

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  • 227
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom
    Graph is a London, United Kingdom-based web development company. The small team offers web development, ux/ui design, mobile app development, Artificial Intelligence, and more. The firm was launched in 2010.

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  • 228
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    Creamos is an advertising company founded in 2018. The firm specializes in advertising, ux/ui design, AR/VR development, branding, and more and has a small team.

    Industries

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  • 229
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    Founded in 2017, rootnode is an user experience company. The small team focuses on ux/ui design, web design, web development, e-commerce development, and more. The company is based in London, United Kingdom.

    Industries

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  • 230
    • Undisclosed
    • 2 - 9 employees
    • London, United Kingdom
    Graphic design agency Prism Marketing Group is located in Cheadle, United Kingdom. The small firm was launched in 2018. Their team focuses on graphic design, pay per click, social media marketing, web design, and more.
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  • 231
    • $1,000+
    • 2 - 9 employees
    • London, United Kingdom
    Based in London, United Kingdom, Different Projects Ltd. Is an user experience company. Launched in 2006, the small team focuses on ux/ui design, digital strategy, product design, custom software development, and more.

    Industries

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  • 232
    • $1,000+
    • 2 - 9 employees
    • London, United Kingdom
    WildPress, a web development firm, is headquartered in London, United Kingdom. They specialize in web development and web design and were launched in 2013.
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  • 233
    • $75,000+
    • 250 - 999 employees
    • London, United Kingdom
    AW Solutions, an application development company, is located in New York, New York. The firm offers mobile app development, custom software development, ux/ui design, AR/VR development, and more and has a midsize team.The firm was founded in 2011.

    Industries

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  • 234
    • $1,000+
    • 50 - 249 employees
    • england, United Kingdom
    It Outsourcing China is a website development company in Maple Grove, Minnesota; Ahmedabad, India; england, United Kingdom and Armagh, Australia. The midsize firm was launched in 2007. Their services include web development, mobile app development, advertising, social media marketing, and more.

    Industries

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  • 235
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom
    Deverx Ltd is a website development firm launched in 2016. They are in London, United Kingdom and have a midsize team. The agency focuses on web development, e-commerce development, mobile app development, and custom software development.
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  • 236
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom
    New Power Host Ltd is an user experience design agency. They are based in London, United Kingdom and have a small team. Their team focuses on ux/ui design, IT strategy consulting, other IT consulting and SI, web design, and more.
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  • 237
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Digia is a software development company founded in 2017. Based in Toronto, Canada, the team specializes in web development, mobile app development, and enterprise app modernization. 

    Clients

    • TempStars.ca
    • Pangea
    • Feast
    • Shift Posts

    Industries

    Notable Project

    Digia Technology created a nonprofit's private community site. They leveraged WordPress modules where appropriate, built an opportunity listing module, and integrated the site into the client's public website.

    "We were impressed by the flexibility, professionalism, and responsiveness of the whole team."

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  • 238
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Located in Minato City, Japan, URALA Communications is a midsize public relations agency. Launched in 1980, the team specializes in public relations, marketing strategy, media planning & buying, digital strategy, and more.

    Industries

    Notable Project

    URALA Communications promoted an international event for a marketing agency. They worked on the client's campaign both online and offline, including broadcasting and working with social media influencers.

    "URALA Communications has an international team with a good understanding of the local market."

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  • 239
    • Undisclosed
    • 10 - 49 employees
    • Ilford, United Kingdom
    Digitrix Media Limited is a social media marketing agency founded in 2017. Their small team is in Ilford, United Kingdom. The company provides social media marketing, search engine optimization, web development, content marketing, and more.

    Industries

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  • 240
    • Undisclosed
    • 2 - 9 employees
    • London, United Kingdom
    Underline Digital Agency is a branding agency. They are in London, United Kingdom and Manchester, United Kingdom and have a small team. Their services include branding, digital strategy, web design, web development, and more.

    Industries

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