Top 50 JavaScript Development Companies in Madrid
The Best of December 2025Looking for a top JavaScript developer in Madrid?
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 Madrid. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Madrid JavaScript Developers
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1$1,000+1,000 - 9,999 employeesParis, FranceProbey Services is a web design company founded in 2016. The large team specializes in Web Design, Web Development, Mobile App Development, and Custom Software Development. The agency is based in London, England; New York, New York; Noida, India and Toronto, Canada.Read More
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2$50,000+250 - 999 employeesMadrid, SpainOne Beyond is an UX design company. Their midsize team is headquartered in Farnborough, England; Madrid, Spain; Budapest, Hungary and Szeged, Hungary. The firm focuses on UX/UI Design, IT strategy consulting, cloud consulting & SI, IT staff augmentation, and more.Read More
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Smith & NephewIndustries
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3$10,000+10 - 49 employeesMadrid, SpainRead More
ExpandX is a web development firm. Their small team is in Sofia, Bulgaria; London, England; München, Germany and New York, New York. The firm specializes in Web Development, Social Media Marketing, Pay Per Click, E-Commerce Development, and more. The firm was established in 2015.
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High Touch Investment Corp Inc (USA) Assent Inc (Canada and USA) South Themes Colleges Group (UK) Airhosted (Switzerland)Industries
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4$10,000+10 - 49 employeesMadrid, SpainRead More
Located in London, England and Madrid, Spain, Catch is a small Digital Strategy company. They focus on Digital Strategy, UX/UI Design, Web Development, Web Design, and more and were founded in 2007.
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SharpIndustries
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5$100,000+1,000 - 9,999 employeesLas Condes, ChileBaufest is a software development firm. The large Bellevue, Washington-based company was founded in 1991. Their team offers Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, UX/UI Design, and more.Read More
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6$10,000+10 - 49 employeesMadrid, SpainRead More
Launched in 2017, Etéreo is a small software development firm located in Madrid, Spain. Their services include custom software development, web development, mobile app development, enterprise app modernization, and more.
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7$5,000+10 - 49 employeesMadrid, SpainEstablished in 2014, i-Labs App Development is an app development company. Their small team is headquartered in New York, New York; Madrid, Spain and Dubai, United Arab Emirates and provides Mobile App Development, UX/UI Design, Web Design, Web Development, and more.Read More
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8$5,000+10 - 49 employeesMadrid, SpainRead More
iphonedroid is a mobile strategy consulting firm located in Madrid, Spain. It was founded in 2009 and now has a team of about 50 that does mobile app development, web development, web design, and UX/UI design
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9$10,000+10 - 49 employeesMadrid, SpainRead More
redradix is a boutique design and development agency, founded in 2010 and located in Madrid, Spain. They have 25 employees specializing in web development and design, UI and UX design, mobile platforms, and CMS. They typically work with small and midmarket companies in advertising and marketing, healthcare, and finance.
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GMVIndustries
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10$1,000+2 - 9 employeesMadrid, SpainEstablished in 2020, Zolution Society is a web design agency. Their small team is headquartered in Madrid, Spain. Their team provides web design, web development, ux/ui design, branding, and more.Read More
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11$25,000+10 - 49 employeesMadrid, SpainRead More
Founded in 2005, SerCompany is a web development agency that offers web development, e-commerce development, and mobile app management and support to their enterprise, mid-market, and small business clients in the IT, financial services, and education industries. Their 50 employees are based out of Kyiv and Kharkov, Ukraine.
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Listing ZIndustries
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12$10,000+10 - 49 employeesMadrid, SpainLaunched in 2019, TAILOR HUB is a small Madrid, Spain-based web development company. Their services include Web Development and Mobile App Development.Read More
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13$25,000+2 - 9 employeesMadrid, SpainApp Design Agency is a custom software development company. The small Madrid, Spain-based team offers Custom Software Development, E-Commerce Development, Mobile App Development, and Web Development. The agency was founded in 2010.Read More
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14Undisclosed2 - 9 employeesMadrid, SpainRead More
Max Planck is a IT strategy consulting company founded in 2022. Their small team is based in Madrid, Spain and Newark, Delaware. The company offers IT strategy consulting, mobile app development, IT staff augmentation, custom software development, and more.
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15$10,000+10 - 49 employeesMadrid, SpainRead More
Develapps is a mobile design and development company founded in 2008. Develapps is headquartered in Madrid with additional offices in Valencia, Spain and London. Their team of 14 offers a wide range of services including mobile app development, web development, custom software development, web design, application management & support, enterprise app modernization, and others.
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FermaxIndustries
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16$10,000+2 - 9 employeesMadrid, SpainEstablished in 2011, Akimad is an application development company. In Madrid, Spain, the team specializes in Mobile App Development and Web Development.Read More
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17Undisclosed10 - 49 employeesMadrid, SpainRead More
Slashmobility is a mobile application development firm based in Barcelona, Spain with offices in Madrid and London. Founded in 2010, the company has about 35 employees that primarily build enterprise mobile solutions for corporate clients. Slashmobility's services include mobile app development, UX/UI design, web development, application testing, and wearable app development.
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Desigual, is a textile company, present in 72 countries with over 400 stores and an annual growth above 50% through internationalization and innovation.Industries
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18$1,000+10 - 49 employeesMadrid, SpainPango Studio, a web development company, focuses on Web Development and E-Commerce Development. The firm is located in Madrid, Spain and Del Valle Norte, Mexico.Read More
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19$10,000+10 - 49 employeesNew York, NYContra Studio is an user experience agency. Headquartered in Bogotá, Colombia; Lima, Peru; Ciudad de México, Mexico and New York, New York, their small team specializes in UX/UI Design, E-Commerce Development, Web Development, Web Design, and more. The agency was launched in 2019.Read More
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20$5,000+2 - 9 employeesMadrid, SpainBarroko is a website development company. Launched in 2025, the agency is based in Madrid, Spain. Their services include Web Development and IT strategy consulting.Read More
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21$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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22$10,000+10 - 49 employeesMadrid, SpainWAAVI STUDIO S.L. Is a Madrid, Spain-based application development firm. They offer Mobile App Development and Web Development and were launched in 2013.Read More
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23$10,000+250 - 999 employeesMadrid, SpainSDLC Corp is a midsize Dubai, United Arab Emirates-based web development company. They focus on Web Development, Custom Software Development, AR/VR development, Artificial Intelligence, and more and were established in 2015.Read More
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24$5,000+10 - 49 employeesRivas-Vaciamadrid, SpainIndicus Software is a web design company. The Rivas-Vaciamadrid, Spain-based firm focuses on Web Design and IT strategy consulting.Read More
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25$1,000+2 - 9 employeesMadrid, SpainItera.es is a Content Marketing company launched in 2022. The small team provides Content Marketing and UX/UI Design.Read More
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26$5,000+2 - 9 employeesAlcorcón, SpainWeb development firm Softspring was launched in 2017. The firm specializes in Web Development and E-Commerce Development, and is small.Read More
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27$10,000+50 - 249 employeesMadrid, SpainSoftware development firm Avalith is based in Hallandale Beach, Florida and Manabi, Ecuador. They offer Custom Software Development and IT staff augmentation.Read More
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28$1,000+2 - 9 employeesMóstoles, SpainKahuna Digital Agency is a SEO agency. They offer Search Engine Optimization and Pay Per Click and were launched in 2015. The firm is located in Móstoles, Spain.Read More
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29$5,000+10 - 49 employeesMadrid, SpainMr. Milú is a Digital Strategy company founded in 2010. Their team provides Digital Strategy and Custom Software Development.Read More
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30$5,000+10 - 49 employeesMadrid, SpainExcibit Solutions is a web development company launched in 2016. The agency specializes in Web Development and BI & big data consulting & SI.Read More
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