Top 100 JavaScript Development Companies in Spain
The Best of November 2026Looking for a top JavaScript developer in Spain?
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 Spain. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Spain JavaScript Developers
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151Undisclosed2 - 9 employeesMadrid, SpainRead More
Web design company Nuau Studio was founded in 2020. They are located in Madrid, Spain and have a small team. Nuau Studio specializes in web design, branding, and graphic design.
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152$50,000+50 - 249 employeesValència, SpainCustom software development company Blue Trail Software was founded in 2013. Headquartered in Oakland, California; Tepatitlán de Morelos, Mexico; València, Spain and Resistencia, Argentina, their midsize team specializes in Custom Software Development, Building Security Services, Application Testing, Mobile App Development, and more.Read More
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153$5,000+2 - 9 employeesBarcelona, SpainVueloIV is a web design agency. The team is in Barcelona, Spain, and their services include Web Design and Web Development.Read More
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154Undisclosed2 - 9 employeesMadrid, SpainWebsite development company Camberí is based in Madrid, Spain. They focus on Web Development and UX/UI Design and were launched in 2019.Read More
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155$1,000+Freelancer employeesOliva, SpainMark Hatter Services, a web development company, is located in Oliva, Spain. They offer Web Development and Web Design and were established in 2017.Read More
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156$1,000+Freelancer employeesSanta Cruz de Tenerife, SpainANISA Solutions is a website development company located in Santa Cruz de Tenerife, Spain. Their services include Web Development and Custom Software Development.Read More
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157$50,000+10 - 49 employeesBarcelona, SpainBoldheart, a mobile application development firm, was founded in 2020. The agency specializes in Mobile App Development, Custom Software Development, UX/UI Design, IT strategy consulting, and more and has a small team. The agency is in Berlin, Germany; München, Germany; Zürich, Switzerland and Wien, Austria.Read More
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ValoraIndustries
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158Undisclosed10 - 49 employeesEl Campello, SpainIntense Health is a custom software development firm in El Campello, Spain and Warszawa, Poland. Their services include Custom Software Development and Web Development.Read More
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159$10,000+10 - 49 employeesValència, SpainJulasoft is a small City Bell, Argentina-based Blockchain company. They specialize in Blockchain, Custom Software Development, Web Development, Mobile App Development, and more and were established in 2011.Read More
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Novomet Karün World Joint The PlanetIndustries
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160$1,000+Freelancer employeesSueca, SpainVolodymyr Chui is a web development firm. Established in 2014, the team offers Web Development and E-Commerce Development. The firm is based in Sueca, Spain.Read More
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161Undisclosed2 - 9 employeesPedreguer, Alicante, SpainSEO PROCEED is a branding firm. They are headquartered in Pedreguer, Alicante, Spain. Their team offers Branding and Content Marketing.Read More
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162UndisclosedFreelancer employeesGorliz, SpainFounded in 2004, Diseño web IMACRESTE is a small Gorliz, Spain-based SEO services firm. Their team offers Search Engine Optimization and Web Design.Read More
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163$25,000+50 - 249 employeesMadrid, SpainMWDN is a midsize IT staff augmentation company. Founded in 2002, the agency is in תל אביב-יפו, Israel; Kyiv, Ukraine; Warszawa, Poland and Sofia, Bulgaria. Their team specializes in IT staff augmentation, Custom Software Development, Recruiting, Mobile App Development, and more.Read More
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Gett Twingate iRoofing NAX Technology GroupIndustries
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164UndisclosedFreelancer employeesBarcelona, SpainALHOSTINGS, a web development company, was established in 2016. The team focuses on Web Development and Search Engine Optimization.Read More
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165$5,000+50 - 249 employeesMadrid, SpainUPQODE is a web design agency. The midsize Nashville, Tennessee-based team focuses on Web Design, UX/UI Design, and Web Development. The agency was founded in 2015.Read More
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Gracenote - Entertainment ProvidersIndustries
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166$5,000+2 - 9 employeesMadrid, SpainPortox is an e-commerce development firm. Established in 2020, the team specializes in e-commerce development, digital strategy, web development, mobile app development, and more. Their small company is headquartered in Porto, Portugal; Madrid, Spain and Firenze, Italy.Read More
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Unicef United Nations Samsung Porto VentureIndustries
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167$100,000+1,000 - 9,999 employeesBarcelona, SpainRead More
Headquartered in San Francisco, Wizeline is a global technology services provider with delivery centers in Mexico, Colombia, Spain, and Vietnam. Since its founding in 2014, Wizeline has grown to over 1,300 employees specializing in product/platform development, UX design, data & AI, cloud & DevOps, and product evolution services.
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168Undisclosed2 - 9 employeesSan Sebastián de los Reyes, SpainTaiko Solutions is a web development firm. The team focuses on Web Development and Web Design, and the firm is headquartered in San Sebastián de los Reyes, Spain.Read More
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169$25,000+50 - 249 employeesMadrid, SpainGaladrim is an artificial intelligence firm headquartered in Paris, France; Nantes, France; Lyon, France and Madrid, Spain. The midsize team offers Artificial Intelligence and Web Development and was established in 2017.Read More
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BNP Paribas Dassault Systèmes Chanel FreeIndustries
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170$5,000+2 - 9 employeesAlagón, SpainDevhello is a software development company. Their small team of employees is headquartered in Alagón, Spain. Their team focuses on Custom Software Development and Web Development.Read More
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171$1,000+Freelancer employeesLleida, SpainCREIXEMENT X is a small Marketing Strategy company. They specialize in Marketing Strategy and Digital Strategy and were launched in 2023.Read More
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172UndisclosedFreelancer employeesBenacazón, SpainCorGon CyberSolutions, a small custom software development company, is headquartered in Benacazón, Spain. The team focuses on Custom Software Development and Web Development.Read More
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173$25,000+10 - 49 employeesMadrid, SpainMapplics is a small mobile application development firm established in 2008. Their services include Mobile App Development and Other Application Development.Read More
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174$10,000+1,000 - 9,999 employeesMadrid, SpainSDLC Corp is an AI company. The large Dubai, United Arab Emirates-based agency was launched in 2015. Their team focuses on Artificial Intelligence, Custom Software Development, ERP consulting and SI, Web Development, and more.Read More
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175$50,000+50 - 249 employeesAlacant, SpainRead More
Founded in 2007, INTELLISOFT Corp is a software development company headquartered in Las Vegas, Nev., with two additional offices in Kiev, Ukraine, and Schlieren, Switzerland. INTELLISOFT Corp's team of 16 provides web development, custom software development, and mobile app development, primarily for small and midmarket firms.
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IntelIndustries
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176Undisclosed2 - 9 employeesMadrid, SpainWebcuatro is a PPC company located in Madrid, Spain. Founded in 2005, the team focuses on Pay Per Click and Search Engine Optimization.Read More
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177Undisclosed10 - 49 employeesMálaga, SpainSeniorDev is a custom software development firm launched in 2014. The agency offers Custom Software Development and Web Development.Read More
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178$10,000+50 - 249 employeesValència, SpainSloboda Studio is an IT staff augmentation company. The midsize Berlin, Germany-based company was founded in 2010. Their team specializes in IT staff augmentation, Artificial Intelligence, IoT development, Custom Software Development, and more.Read More
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HuggiesIndustries
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179UndisclosedFreelancer employeesMadrid, SpainMarketing Media Solutions is a social media marketing agency established in 2003. The team focuses on Social Media Marketing and Email Marketing.Read More
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180$10,000+50 - 249 employeesBarcelona, SpainFounded in 2013, Halo Lab is a web design agency. Their midsize team is located in Dubai, United Arab Emirates; New York, New York; 08, Andorra and Odesa, Ukraine. Their services include Web Design, Artificial Intelligence, Web Development, Custom Software Development, and more.Read More
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Auth0Industries
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