Top 100 JavaScript Development Companies in London

Need Help Selecting a Company?
Directory image
  1. Home
  2. Web Developers
  3. JavaScript
  4. United Kingdom
  5. London

Top 100 JavaScript Development Companies in London

September 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

  • 271
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    Mellontical Solutions is a website development firm launched in 2021. The agency specializes in web development, branding, search engine optimization, other digital marketing, and more and has a small team.
    Visit Site
  • Get connected with a company for free

    Tell us about your project, and we'll match you with vetted companies that meet your requirements.

    Get Started
  • 272
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 2 - 9 employees
    • London, United Kingdom

    Software development firm KosmosKod was launched in 2022. Located in London, United Kingdom, their small team provides custom software development, mobile app development, web development, enterprise app modernization, and more.

    Industries

    Notable Project

    KosmosKod has developed a comprehensive online booking system and website for a water sports and events company. The team has also integrated back-office tools and a calendar into the system.

    "Overall, we describe their project management as highly professional and customer-focused."

    Visit Site
  • 273
    • $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

    Visit Site
  • 274
    • $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

    Visit Site
  • 275
    • $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

    Visit Site
  • 276
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom
    Flik digital is a web design agency founded in 2005. They are headquartered in London, United Kingdom and have a small team. The company offers web design, web development, branding, social media marketing, and more.

    Industries

    Notable Project

    A logistics company hired flik digital to rebrand and redesign their consumer-facing brand's website. The team did UX research, created wireframes and user stories, and then developed the website using sprints.

    "We were really happy with the outcomes of the project."

    Visit Site
  • 277
    • $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.
    Visit Site
  • 278
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    Aqute Solutions is a mobile application development firm. They provide mobile app development, web development, custom software development, branding, and more and were established in 2016. Their small team is Islamabad, Pakistan-based.
    Visit Site
  • 279

    Worked with Codematic Technology Services?

    Leave a review
    Visit Site
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    Website development company Codematic Technology Services was founded in 2019. The small team specializes in web development, mobile app development, e-commerce development, content marketing, and more. The agency is based in London, United Kingdom.

    Industries

    Visit Site
  • 280
    • $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

    Visit Site
  • 281
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom
    Virtue Xolutions, a website development company, is based in Dubai, United Arab Emirates; Ashburn, Virginia; London, United Kingdom and Mississauga, Canada. The midsize agency was launched in 2015. Their team specializes in web development, web design, branding, mobile app development, and more.
    Visit Site
  • 282
    • $1,000+
    • 50 - 249 employees
    • London, United Kingdom
    Established in 2020, Exolute Media is a marketing strategy company. Their small team is located in San Diego, California and London, United Kingdom. Their services include marketing strategy, web design, web development, and e-commerce development.

    Notable Project

    Exolute Media helped a digital agency design and develop an e-commerce store. After that, they helped with SEO, SMM, PPC campaign management, copywriting, branding, and B2B lead generation.

    "Exolute Media is, by far, the best marketing agency I've come across."

    Visit Site
  • 283
    • $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.
    Visit Site
  • 284
    • $25,000+
    • 2 - 9 employees
    • London, United Kingdom

    CarbonCode Solutions Ltd, a custom software development company, was established in 2020. Based in Caerphilly, United Kingdom, their small team provides custom software development, web development, mobile app development, and other application development.

    Clients

    • Counting King
    • jobmate
    • Dijji
    • Solo60

    Industries

    Notable Project

    CarbonCode Solutions Ltd has been hired to develop a mobile app for a tech startup based on an existing UX/UI design. They are building the backend systems and integrating the app with other software.

    "They just get it done."

    Visit Site
  • 285
    • $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.
    Visit Site
  • 286
    • 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

    Visit Site
  • 287
    • $1,000+
    • 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."

    Visit Site
  • 288
    • $5,000+
    • 2 - 9 employees
    • London, United Kingdom
    Suggestv Ltd is a London, United Kingdom-based software development firm. The small company was founded in 2014. Their services include custom software development, cloud consulting & SI, business consulting, other IT consulting and SI, and more.
    Visit Site
  • 289
    • Scheduling

      4.6
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom

    Located in Birmingham , United Kingdom, Verse is an user experience company. The small team offers ux/ui design, email marketing, web design, and web development and was launched in 2007.

    Industries

    Notable Project

    A houseware manufacturer hired Verse to audit the UX of their D2C e-commerce website. They reviewed the web app's accessibility, navigation, page load times, user journeys and flows, and overall performance.

    "We came together as a team and developed practical and detailed solutions that reflected the brief perfectly."

    Visit Site
  • 290
    • $10,000+
    • 50 - 249 employees
    • Heathrow, United Kingdom
    Root Info Solutions, an e-commerce development firm, is located in Heathrow, United Kingdom. Established in 2004, the midsize team provides e-commerce development, mobile app development, application testing, web design, and more.
    Visit Site
  • 291
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom
    Small product design company Crowdform, is located in London, United Kingdom. They offer product design, custom software development, ux/ui design, blockchain, and more and were established in 2014.
    Visit Site
  • 292
    • $10,000+
    • 2 - 9 employees
    • London , United Kingdom
    Digital Mosaic is a web development firm. Established in 2009, the team focuses on web development, web design, advertising, print design, and more. Their small company is London , United Kingdom-based.

    Industries

    Visit Site
  • 293
    • $5,000+
    • 2 - 9 employees
    • London , United Kingdom
    Berry Cloud Ltd, a custom software development firm, is headquartered in London , United Kingdom and Prague, Czech Republic. The small agency was founded in 2014. Their team offers custom software development, web development, cloud consulting & SI, and mobile app development.

    Industries

    Visit Site
  • 294
    • $5,000+
    • 2 - 9 employees
    • London, United Kingdom
    Based in London, United Kingdom, Rejiggle is a small web design company. Founded in 2020, the team provides web design, ux/ui design, product design, web development, and more.
    Visit Site
  • 295
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    Proteams ApS, an IT staff augmentation company, was launched in 2015. The small Hørsholm, Denmark-based team offers IT staff augmentation, mobile app development, BI & big data consulting & SI, web development, and more.
    Visit Site
  • 296
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Barking, United Kingdom
    Stack360, a website development company, was founded in 2020. The small team specializes in web development, custom software development, web design, ux/ui design, and more. The company is in Lahore, Pakistan and Barking, United Kingdom.

    Notable Project

    Stack360 provides front- and backend services for a mobile SaaS company. They've developed an MVP, building a scalable backend and a customized frontend for it. They've also created a KPI-tracking dashboard. 

    "I'm impressed with the personality and craftsmanship of the engineers."

    Visit Site
  • 297
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 2 - 9 employees
    • Morden, United Kingdom
    Buglelab, a web design company, is based in. The small team provides web design, web development, and search engine optimization. The firm was founded in 2017.

    Industries

    Notable Project

    Buglelab designed and developed a website for an environmental nonprofit organization. The website included a complex mapping feature, a contact form, donate buttons, and other unique features.

    "They gave us a user-friendly, professional, and highly functioning site."

    Visit Site
  • 298
    • $1,000+
    • 2 - 9 employees
    • Morden, United Kingdom

    Websites Made, a web design company, is located in Morden, United Kingdom; Peterborough, United Kingdom and Lisboa, Portugal. The company provides web design, web development, search engine optimization, branding, and more and has a small team.The company was established in 2017.

    Industries

    Visit Site
  • 299
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    Olive Software is an application development company. The small Hanoi, Vietnam-based company was launched in 2021. Their services include mobile app development, web development, IT strategy consulting, blockchain, and more.
    Visit Site
  • 300
    • $1,000+
    • 2 - 9 employees
    • London , United Kingdom
    Branding agency JohnLawley Web Design is based in London , United Kingdom. The small team focuses on branding, graphic design, social media marketing, and web design. The firm was established in 2018.

    Industries

    Visit Site

Get connected with the right company for you

We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.

Schedule Consultation