Top 100 JavaScript Development Companies in Spain
The Best of December 2025Looking 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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121$25,000+10 - 49 employeesMadrid, SpainMobile application development company Airtouch Media is headquartered in Madrid, Spain and București, Romania. Their services include Mobile App Development and Custom Software Development.Read More
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122$5,000+10 - 49 employeesMálaga, SpainBlueant Solutions, a small e-commerce development company, is based in Málaga, Spain; Madrid, Spain and Pécs, Hungary. Launched in 2019, the team provides E-Commerce Development, Web Development, Digital Strategy, and Search Engine Optimization.Read More
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123Undisclosed2 - 9 employeesPalma, SpainAdvertising company Zink Marketing & Comunicación is headquartered in Palma, Spain. The team specializes in Advertising and Public Relations.Read More
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124$5,000+2 - 9 employeesMadrid, SpainSoution is a small data analytics company. They specialize in BI & big data consulting & SI and cloud consulting & SI and were launched in 2022.Read More
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125$10,000+10 - 49 employeesValència, SpainRead More
Founded in 2009, Trembit is a full-service software development company based in Kiev. The team of 35+ provides custom software development, e-commerce development, web development, and mobile app development for mainly small businesses.
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Red5Pro.comIndustries
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126$50,000+50 - 249 employeesMálaga, SpainRead More
Founded in 2006, Vector Software Ltd is an IT outsourcing company based in L'viv, Ukraine. They have more than 50 employees that specialize in application testing and development. They mostly work with mid-market and small businesses.
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Stingray - Optical delousing solutions for fishing industry;Industries
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127$10,000+50 - 249 employeesMálaga, SpainRead More
IT strategy consulting company Wunderdog was founded in 2018. Their midsize team is based in Helsinki, Finland and Berlin, Germany. Wunderdog offers IT strategy consulting, custom software development, web development, IT staff augmentation, and more.
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128Undisclosed2 - 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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129Undisclosed2 - 9 employeesBoadilla del Monte, SpainSEO Madrid is a SEO agency. Their small team is based in Boadilla del Monte, Spain and focuses on Search Engine Optimization and Social Media Marketing. The company was established in 2007.Read More
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130$5,000+50 - 249 employeesAlicante (Alacant), SpainRead More
Founded in 2017, MeGaDev is a custom software development firm. Their midsize team is in Alicante (Alacant), Spain; Kharkiv, Ukraine; Rīga, Latvia and Zug, Switzerland. Their services include Custom Software Development, Artificial Intelligence, ERP consulting and SI, Web Development, and more.
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TalentumIndustries
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131Undisclosed50 - 249 employeesMontevideo, UruguayLazos Contact Center is a call center. Their team is headquartered in Montevideo, Uruguay and Salto, Uruguay and specializes in Call Center Services and Search Engine Optimization.Read More
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132$1,000+Freelancer employeesSedaví, SpainMarian Marton, an user experience design agency, is based in Sedaví, Spain. They focus on UX/UI Design and Web Design and were established in 2021.Read More
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133Undisclosed2 - 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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134Undisclosed2 - 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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135Undisclosed2 - 9 employeesBenidorm, SpainTridan SLU is a SEO company. Located in Benidorm, Spain, their small team offers Search Engine Optimization and Web Design. The agency was founded in 1996.Read More
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136$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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137Undisclosed2 - 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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138$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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139$50,000+10 - 49 employeesParis, FranceBoldheart, 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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140Undisclosed10 - 49 employeesEl Campello, SpainLaunched in 2024, Intense Health is a custom software development firm. Located in El Campello, Spain and Warszawa, Poland, the team provides Custom Software Development and Web Development.Read More
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141UndisclosedFreelancer 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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142$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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143UndisclosedFreelancer 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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144Undisclosed2 - 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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145$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
Clients
Unicef United Nations Samsung Porto VentureIndustries
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146$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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147$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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148$100,000+1,000 - 9,999 employeesSan Francisco, CARead 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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Fitz Frames -
149Undisclosed2 - 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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150$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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