Top 80 JavaScript Development Companies in Spain

Directory image
  1. Home
  2. Web Developers
  3. JavaScript
  4. Spain

Top 80 JavaScript Development Companies in Spain

February 2023

Looking 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. 

List of the Best Spain JavaScript Developers

  • 1
    • $50,000+
    • 10 - 49 employees
    • Las Palmas de Gran Canaria, Spain

    Lasting Dynamics SRL is a software agency founded in 2015 in Torre del Greco, Italy with over 10 employees. They specialize in web and mobile app development solutions for small and mid-market firms in the industries of transportation, business services, and more.

    Clients

    • Sunrise.ch
    • Intempus.dk
    • Brandbassador.com
    • Mindcap.dk

    Industries

    Notable Project

    Lasting Dynamics SRL provides automated tests and process improvements for a marketing platform. The tests prevent regressions in updated versions of the platform. The collaboration is ongoing.

    "If Lasting Dynamics SRL thinks they can provide value to our company, they won’t hesitate to share their ideas."

    Visit Site
  • 2
    • $25,000+
    • 10 - 49 employees
    • Las Palmas de Gran Canaria, Spain

    Based in Las Palmas, Spain, Secret Source is an outsourcing development company founded in 2008. Their team of 28 specializes in web design, web development, e-commerce development, mobile app development, and more.  

    Clients

    • Informa
    • Experian
    • British Gas
    • Apply4

    Industries

    Notable Project

    With the goal of improving their search rankings for preferred keywords, the client hired Secret Source for website structuring, regular content changes, and SEO services.

    "With their help, we were able to move up in the search rankings significantly. They [Secret Source] continue to help us maintain that positioning."

    Visit Site
  • 3
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Barcelona, Spain

    Teplin is a web agency founded in 2015 and based in Kyiv, Ukraine with more than ten experts. They offer web development, web design, and UX/UI design solutions for clients that work in the fields of business services, consumer products, and education.

    Clients

    • SnapChat
    • PineLab
    • Crytek
    • Scoobic

    Industries

    Notable Project

    Teplin was hired by a subscription beauty box company to redesign and develop their Shopify Plus store. The team created UI/UX designs that went through minor design revisions before the development.

    "We were very impressed with the wireframes and designs created."

    Visit Site
  • 4
    • $10,000+
    • 10 - 49 employees
    • Castelldefels, Spain

    Unimedia Technology is a website development company. Their small team is located in Castelldefels, Spain. Their services include web development, custom software development, mobile app development, and e-commerce development. The firm was launched in 2017.

    Clients

    • Zellar
    • Stage Enterprises
    • Know Whats Loved
    • Too Young

    Industries

    Notable Project

    Unimedia Technology developed the app behind the smart socks built by a healthcare technology company. The technology used included Raspberry Pi, Docker, and an API integration built with ASP.NET.

    “We were very pleased to see that Unimedia Technology delivered the functionality detailed in the project scope.”

    Visit Site
  • 5
    • Scheduling

      4.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Madrid, Spain

    Based in Madrid, Aluxion is a digital product agency that was founded in 2014.  Aluxion and their team of 15 specialize in web design, web development, UX/UI design, and custom software development. The agency mainly works with mid-sized businesses. 

    Clients

    • Banco Santander
    • Asisa
    • Grupo HLA
    • Globalvia

    Industries

    Notable Project

    Aluxion is developing a promotional website based on a customized version of the WordPress CMS. Created with HTML5 and PHP, the site is visually engaging and scalable for future growth. 

    "They understand the project, know what we want, and don't just wait for us to tell them what to do."

    Visit Site
  • 6
    • $5,000+
    • 2 - 9 employees
    • Estepona, Spain

    Dutch Synergy is a digital marketing consultancy based in Estepona, Spain, and founded in 2015. Their team of fewer than 10 offers digital strategy, web design, and content marketing solutions for clients in the fields of manufacturing and business services.

    Clients

    • YANMAR Europe
    • STARK Electric Motors
    • BEGE Power Transmission
    • Industrial Drive Systems

    Industries

    Notable Project

    An electrical and mechanical parts supplier hired Dutch Synergy to develop a new website. The team created a database to organize the client's products and covered both front- and backend development. 

    "Dutch Synergy can easily produce 100% high-quality outputs and solutions."

    Visit Site
  • 7
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Valencia, Spain

    Yeeply Mobile is a mobile development marketplace headquartered in London with offices in Paris and Valencia, Spain. Founded in 2012, Yeeply Mobile's team of around 30 employees primarily provides mobile app development services, but can also offer UX/UI design and mobile & app marketing capabilities.

    Clients

    • LaLiga Fantasy
    • Darwinex
    • Footgolf
    • Roadstr

    Notable Project

    Yeeply Mobile designed two products for a game outsourcer with the goal of reaching major brands for larger projects. The team helped in account and project management, as well as business development.

    "[Yeeply Mobile is] serious, professional, and extremely proactive."

    Visit Site
  • 8
    • Scheduling

      4.0
    • Quality

      4.5
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Las Palmas de Gran Canaria, Spain

    Established in 2018, Squaads is a small mobile app development company. Their team offers mobile app development, web development, custom software development, enterprise app modernization, and more. The agency is based in Las Palmas de Gran Canaria, Spain.

    Industries

    Notable Project

    Squaads developed data management software for an animal breeding consultancy firm. Working in Angular and Node.js, the team built out both the front- and backend.

    "It has been very easy and fun to work with Squaads."

    Visit Site
  • 9
    • Scheduling

      4.8
    • Quality

      4.2
    • Cost

      4.2
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Madrid, Spain

    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.

    Clients

    • GMV
    • Indra
    • Telefónica
    • BBVA

    Industries

    Notable Project

    Redadrix provided testing development services, working on modelling the experience for a new interphase development. They used editors for some of the JavaScript coding as well as a range of other tools.

    “They responded very well and reinforced their team.”

    Visit Site
  • 10
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Madrid, Spain

    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.

    Industries

    Notable Project

    Etéreo developed an e-commerce website for a telecommunications company. The team provided technical strategies for the development of the platform.

    "They were very proactive and had an outstanding communication level."

    Visit Site
  • 11
    • Scheduling

      4.7
    • Quality

      4.6
    • Cost

      4.5
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 2 - 9 employees
    • Barcelona, Spain

    Located in Barcelona, Spain, Onabitz is a small application development firm. They provide mobile app development, ux/ui design, e-commerce development, and web development and were founded in 2017.

    Clients

    • Vall d'Hebron - Barcelona Campus Hospitalari
    • Universitat Politècnica de Catalunya
    • Classlife
    • Forocoches.com

    Industries

    Notable Project

    A smart analytics company engaged with Onabitz for their front- and backend development services. They implemented a ship monitoring system that tracks data for issue mitigation and maintenance support.

    "The results have been as expected and deliveries have been achieved on time."

    Visit Site
  • 12
    • $5,000+
    • 10 - 49 employees
    • Olot, Spain

    Volcanic Internet is a small software development firm in Olot, Spain; Barcelona, Spain; Amsterdam, Netherlands and Wales, United Kingdom. Launched in 2009, the team offers custom software development, web development, e-commerce development, mobile app development, and more.

    Industries

    Notable Project

    Volcanic Internet is creating a WordPress website for a film production company. Their platform will be a system for registered users to rent or buy the studio's films and watch them on the website.

    "We're impressed with their attention to detail, their availability, and their willingness to help us with the process."

    Visit Site
  • 13
    • $5,000+
    • 10 - 49 employees
    • Marbella, Spain

    WeLoveWeb.eu is a website development firm. They are based in Marbella, Spain and have a small team. Their services include web development, web design, e-commerce development, ux/ui design, and more.

    Industries

    Visit Site
  • 14
    • $5,000+
    • 10 - 49 employees
    • Granada, Spain

    Small web development firm Jensen Technologies, is based in Granada, Spain. Founded in 2009, the team offers web development and mobile app development.

    Clients

    • World Health Organization
    • OSCE

    Industries

    Notable Project

    Jensen Technologies developed the client's website 13 years ago and has since provided updates and ongoing SEO services. They built the original site on Joomla but have since integrated newer technologies. 

    "After 13 years, we still have the same connection and the same quality of work." 

    Visit Site
  • 15
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Alicante (Alacant), Spain

    WebExito, a social media marketing company, is located in Alicante, Spain. The agency provides social media marketing, search engine optimization, web design, graphic design, and more and has a small team.The agency was established in 2013.

    Industries

    Notable Project

    WebExito took a Spanish real estate vision and translated it into a sight satiable coded page. The team of developers designs and builds the concept, and executed it into a tangible live site.

    "They first really did their best to find out what I want, need, and how I envision it all in my head."

    Visit Site
  • 16
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • Córdoba, Spain

    Headquartered in Córdoba, Spain, The Neon Project is a digital agency that assists with large organizations and startups. Since 2018, their team of 15+ has been specializing in web development, custom software development, artificial intelligence, and blockchain. 

    Notable Project

    The Neon Project developed an app using Blockchain for a foundation. They worked to implement features for gathering and storing results and evaluations.

    "They understand our goals and input good suggestions to help us reach more people."

    Visit Site
  • 17
    • $10,000+
    • 2 - 9 employees
    • Madrid, Spain
    TAILOR HUB is a website development company. They are headquartered in Madrid, Spain and have a small team that offers web development, mobile app development, web design, and ux/ui design. The company was launched in 2019.

    Industries

    Visit Site
  • 18
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 2 - 9 employees
    • Alicante (Alacant), Spain
    In Tallinn, Estonia and Alicante (Alacant), Spain, NuevaCode is a custom software development firm. The small team offers custom software development, web development, ux/ui design, and IT staff augmentation. The company was founded in 2022.

    Industries

    Notable Project

    NuevaCode has developed a SaaS product for the Aging Care industry that captures referrals for various users. Key deliverables have included a flexible React/NextJS application deployed in AWS.  

    "I believe that NuevaCode will continue to adapt as it experiences new clients and their project requirements."

    Visit Site
  • 19
    • Undisclosed
    • 2 - 9 employees
    • València, Spain

    We are Cactus S.L. is a development agency based in Valencia, Spain. Since 2014, their current, small team of 9 are experts in web design and development, custom software development, and branding. We are Cactus S.L. mainly works with small businesses. 

    Clients

    • Develapps
    • Jugo
    • Las Naves
    • https://www.lasnaves.com

    Notable Project

    We are Cactus developed the dashboard’s backend and frontend using Django, Python, and AngularJS. They also integrated chat systems for the platform.

    "They [We are Cactus] have a very flexible team that reacts to problems very well."

    Visit Site
  • 20
    • $10,000+
    • 2 - 9 employees
    • Madrid, Spain

    Akimad is a Madrid, Spain-based mobile app development firm. Established in 2011, the small team focuses on mobile app development, web development, and ux/ui design.

    Industries

    Visit Site
  • 21
    • Scheduling

      4.0
    • Quality

      4.2
    • Cost

      4.2
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Madrid, Spain

    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.

    Clients

    • Fermax
    • Hofmann
    • Porcelanosa
    • LG Electronics

    Industries

    Notable Project

    11

    "Quote."

    Visit Site
  • 22
    • Undisclosed
    • 10 - 49 employees
    • Barcelona, Spain

    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.

    Clients

    • Desigual,  is a textile company, present in 72 countries with over 400 stores and an annual growth above 50% through internationalization and innovation.
    • LetsBonus, is collective buying company with presence in five countries and leader in Spain offering, the best selection of plans leisure, travel and exclusive discounts.

    Industries

    Notable Project

    SlashMobility developed an online marketplace app for Android and iOS. The app’s main draw was the possibility to apply discounts to any type of service offered, allowing the users to reach a wider audience.

    “The app has obviously been successful, and we’re happy with the work they’ve done”

    Visit Site
  • 23
    • $5,000+
    • 10 - 49 employees
    • Barcelona, Spain

    MarsBased is a small web development firm. Located in Barcelona, Spain, the company was established in 2014. Their services include web development, mobile app development, and e-commerce development.

    Industries

    Visit Site
  • 24
    • $25,000+
    • 2 - 9 employees
    • Barcelona, Spain

    The Crafters Lab is a Barcelona, Spain-based website development company. The small firm was founded in 2021. Their services include web development, custom software development, and enterprise app modernization.

    Industries

    Visit Site
  • 25
    • $10,000+
    • 2 - 9 employees
    • Manresa, Spain

    Mecexis Studio is a web development company launched in 2013. Their small team is in Manresa, Spain. The agency provides web development, web design, and mobile app development.

    Industries

    Visit Site
  • 26
    • $1,000+
    • 2 - 9 employees
    • Vilanova del Camí, Spain

    Geekobit is a web design company. The Vilanova del Camí, Spain-based firm was launched in 2019. The small team provides web design, web development, search engine optimization, branding, and more.

    Visit Site
  • 27
    • $100,000+
    • 50 - 249 employees
    • Sevilla, Spain

    Z1 Digital Studio is an user experience company. Their midsize team is headquartered in Sevilla, Spain and Victoria, Canada. The agency specializes in ux/ui design, mobile app development, web design, custom software development, and more.

    Clients

    • GoalBased Investors
    • Mentor Spaces
    • Field Trip Health

    Industries

    Visit Site
  • 28
    • $5,000+
    • 2 - 9 employees
    • Barcelona, Spain

    Origen Studio is a website development firm. They are located in Barcelona, Spain and have a small team. The agency offers web development, custom software development, e-commerce development, Artificial Intelligence, and more.

    Industries

    Visit Site
  • 29
    • $10,000+
    • 10 - 49 employees
    • Madrid, Spain

    WAAVI STUDIO S.L. Is a mobile application development company founded in 2013. The small team provides mobile app development, web development, custom software development, enterprise app modernization, and more. The company is headquartered in Madrid, Spain.

    Visit Site
  • 30
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • València, Spain

    Go Wombat Team is an IT consulting company founded in 2015. They have a team of about 27 individuals who support clients from the company’s two locations: Dnipro, Ukraine, and Tallinn, Estonia. They focus on web, mobile app, and AI development services for small businesses and midmarket firms primarily in the following industries: advertising and marketing, hospitality and leisure, and energy and natural resources.

    Clients

    • Many of our clients come from the following industries: Marketing & Advertisement
    • Oil & Gas
    • Hotel & Hospitality
    • Health & Wellness

    Industries

    Notable Project

    A marketing data platform hired Go Wombat to build out their client-facing platform. The team used Python to develop the solution, connecting it with Google, Facebook, and Adform. 

    "It’s working really well, and the experience for the user is seamless."

    Visit Site