Top 50 JavaScript Development Companies in Barcelona
The Best of December 2025Looking for a top JavaScript developer in Barcelona?
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 Barcelona. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Barcelona JavaScript Developers
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31$5,000+2 - 9 employeesBarcelona, SpainFounded in 2017, Origen Studio is a web development company. The team focuses on Web Development and Custom Software Development.Read More
Industries
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32$5,000+10 - 49 employeesBarcelona, SpainItequia is a custom software development firm. The firm is based in Barcelona, Spain. Their team specializes in Custom Software Development and Enterprise App Modernization.Read More
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33$50,000+2 - 9 employeesCornellà de Llobregat, SpainThe Software Room, a custom software development company, is located in Cornellà de Llobregat, Spain. They provide Custom Software Development and Web Development and were established in 2021.Read More
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34$5,000+2 - 9 employeesL'Hospitalet de Llobregat, SpainFounded in 2014, Several.pro is a branding company. The team provides Branding and Digital Strategy and is headquartered in L'Hospitalet de Llobregat, Spain and Madrid, Spain.Read More
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35$1,000+Freelancer employeesBarcelona, SpainRead More
Hable Studios is a web design and development studio based in Barcelona. Founded in 2018, they serve small and midmarket businesses in industries such as arts and entertainment, business services, and education.
Clients
PaperclipIndustries
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36$5,000+10 - 49 employeesSabadell, SpainInsolite, an application development company, is located in Sabadell, Spain. Founded in 2022, the team provides Mobile App Development and Web Design.Read More
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37$5,000+2 - 9 employeesBarcelona, SpainLaunched in 2023, Twinology is an IT strategy consulting company. The team offers IT strategy consulting and cloud consulting & SI.Read More
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38Undisclosed2 - 9 employeesBarcelona, SpainCommon People Interactive is a web development firm. The team provides Web Development and E-Commerce Development and is headquartered in Barcelona, Spain.Read More
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39Undisclosed10 - 49 employeesBarcelona, SpainSmall social media marketing company Pukkas, is based in Barcelona, Spain. The team offers Social Media Marketing and Email Marketing.Read More
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40Undisclosed50 - 249 employeesBarcelona, SpainInnoIT Consulting is a big data company. Their team is located in Barcelona, Spain. The firm specializes in BI & big data consulting & SI and Web Development.Read More
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41Undisclosed2 - 9 employeesBarcelona, SpainFounded in 2011, DevService, a small web design agency, is based in Barcelona, Spain. Their services include Web Design and Web Development.Read More
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42UndisclosedFreelancer employeesBarcelona, SpainALHOSTINGS, a small website development firm, is in Barcelona, Spain. Their services include Web Development and Web Design.Read More
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43Undisclosed2 - 9 employeesBarcelona, SpainKontainer Media is a branding company. They provide Branding and Graphic Design and were founded in 2011.Read More
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44$10,000+2 - 9 employeesManresa, SpainMecexis Studio is a web development company. Established in 2013, the team focuses on Web Development and Web Design.Read More
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45$1,000+2 - 9 employeesVilanova del Camí, SpainEstablished in 2019, Convierte web LLC is a SEO agency. In Vilanova del Camí, Spain and Toluca de Lerdo, Mexico, the team focuses on Search Engine Optimization and Web Design.Read More
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46$25,000+10 - 49 employeesBarcelona, SpainRead More
SystemSeed, founded in 1997, is a Drupal servicer provider headquartered in Dover, DE with offices in the United Kingdom. SystemSeed is composed of under ten employees, each of whom works to provide web development, e-commerce development, UX/UI design, and digital strategy services to small- and mid-market businesses.
Clients
KrengeltechIndustries
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47$10,000+10 - 49 employeesBarcelona, SpainBITOTEK, an app development company, is based in London, England and Barcelona, Spain. The team specializes in Mobile App Development and Web Development.Read More
Industries
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