Top 30 JavaScript Development Companies in Brussels
The Best of December 2025Looking for a top JavaScript developer in Brussels?
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 Brussels. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Brussels JavaScript Developers
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1$1,000+1,000 - 9,999 employeesChicago, ILProbey 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$10,000+1,000 - 9,999 employeesBruxelles, BelgiumCloud consulting & SI company Innowise was launched in 2007. Their large team is based in Warszawa, Poland; Bruxelles, Belgium; Francavilla al Mare, Italy and Genève, Switzerland. Their services include cloud consulting & SI, IT staff augmentation, Custom Software Development, Web Development, and more.Read More
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TopconIndustries
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3$1,000+50 - 249 employeesCalgary, CanadaWeb development firm Digia is headquartered in Toronto, Canada; Kyiv, Ukraine; Québec, Canada and Montréal, Canada. The midsize company was established in 2016. Their services include Web Development, Web Design, UX/UI Design, Custom Software Development, and more.Read More
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4$1,000+50 - 249 employeesGrimbergen, BelgiumArtificial intelligence development company Mindrops is located in Delhi, India; Grimbergen, Belgium; London, England and Orlando, Florida. The company focuses on Artificial Intelligence, Mobile App Development, Custom Software Development, E-Commerce Development, and more and is midsize.The company was established in 2018.Read More
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5$10,000+10 - 49 employeesBruxelles, BelgiumRead More
Stellar Development is a custom software development company. Established in 2019, the team provides custom software development, api development, devops managed services, web design, and more. Their small firm is based in Skopje, North Macedonia.
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6Undisclosed2 - 9 employeesSint-Joost-ten-Node, BelgiumEstablished in 2019, Weichie.com is a website development company. The firm specializes in Web Development and E-Commerce Development.Read More
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7$5,000+2 - 9 employeesElsene, BelgiumBeLead is an UX company. Based in Elsene, Belgium, their small team provides UX/UI Design and Branding. The agency was founded in 2009.Read More
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8$10,000+10 - 49 employeesMolenbeek-Saint-Jean, BelgiumInnovative Solutions is a custom software development firm launched in 2019. The team specializes in Custom Software Development and Web Development.Read More
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9$100,000+10 - 49 employeesLeuven, BelgiumMadewithlove, a web development company, specialize in Web Development and Mobile App Development. They were founded in 2008.Read More
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10$25,000+10 - 49 employeesStockholm, SwedenRead More
Founded in 2016, EXB Soft is a computer software company based in Kharkiv, Ukraine that focuses on custom software and web development. Their team of around 15 employees provides services to small and mid-sized businesses in the financial and telecom industries.
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11$10,000+10 - 49 employeesSint-Lambrechts-Woluwe, BelgiumAnais Digital is a custom software development company. The Sint-Lambrechts-Woluwe, Belgium-based company was launched in 2005. Their team focuses on Custom Software Development and Web Development.Read More
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12$10,000+2 - 9 employeesIxelles, BelgiumTypi Design is a web development firm. Headquartered in Ixelles, Belgium, the team specializes in Web Development and Web Design.Read More
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13$1,000+2 - 9 employeesBruxelles, BelgiumFounded in 2022, EACHSTAPP is a custom software development company. The firm provides Custom Software Development and Web Development.Read More
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14$25,000+10 - 49 employeesRixensart, BelgiumIn Rixensart, Belgium, BIG BAD WOLF is a small Advertising company. The team offers Advertising and Digital Strategy.Read More
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15$5,000+50 - 249 employeesForest, BelgiumIT strategy consulting company STAIZEN offers IT strategy consulting and BI & big data consulting & SI. They are headquartered in Forest, Belgium and Makati City, Philippines.Read More
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16$1,000+2 - 9 employeesBruxelles, BelgiumKitbyte, a web design company, was established in 2023. They provides Web Design and Web Development.Read More
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17Undisclosed2 - 9 employeesHaaltert, BelgiumBased in Haaltert, Belgium, Tech & Thrive is a web design company. Their services include Web Design and Web Development.Read More
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18$50,000+50 - 249 employeesAntwerpen, BelgiumSigli is a software development company. Their midsize team is in Antwerpen, Belgium; Vilnius, Lithuania; London, England and Amsterdam, Netherlands. The agency offers Custom Software Development, Artificial Intelligence, BI & big data consulting & SI, AI Consulting, and more. The agency was established in 2015.Read More
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Sensotec NVIndustries
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19$10,000+50 - 249 employeesKuala Lumpur, MalaysiaEstablished in 2012, Lizard Global is an app development company. The midsize Amsterdam, Netherlands-based team provides Mobile App Development, Web Development, and Custom Software Development.Read More
Clients
HeinekenIndustries
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20$10,000+50 - 249 employeesDestelbergen, BelgiumRead More
Founded in 2007, CactusSoft is a software development agency located in Ghent, Belgium, with an additional office in Minsk, Belarus. They have nearly 110 employees that provide web, mobile app, e-commerce, and custom software development and more. They work mainly with midmarket companies.
Clients
Be-MobileIndustries
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21$5,000+10 - 49 employeesAntwerpen, BelgiumUTD is an e-commerce development company in Antwerpen, Belgium. Founded in 2013, the team specializes in E-Commerce Development and Web Development.Read More
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22Undisclosed2 - 9 employeesAntwerpen, BelgiumRead More
Kangacoders is a mobile and web app developer based in Antwerp, Belgium, that was established in 2013. Their team of 4 employees offers mobile app development, web development, custom software development, and web design services.
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23$5,000+2 - 9 employeesSint-Niklaas, BelgiumGrowl is a web development company launched in 2020. Their team offers Web Development and Mobile App Development.Read More
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24$1,000+2 - 9 employeesGent, BelgiumWeb development firm ESKIDOOS was established in 2013. The firm provides Web Development, UX/UI Design, Graphic Design, Branding, and more and has a small team.Read More
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25$5,000+2 - 9 employeesMons, BelgiumAlpaga is a branding firm. Based in Mons, Belgium and Ho chi minh city, Vietnam, their small team offers Branding and Web Design. The firm was established in 2012.Read More
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26$5,000+10 - 49 employeesGeel, BelgiumTunity NV is a software development firm located in Geel, Belgium. Their services include Custom Software Development and Web Development.Read More
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27$5,000+10 - 49 employeesHasselt, BelgiumRezolv is a small Hasselt, Belgium-based IT strategy consulting company. Their services include IT strategy consulting and ERP consulting and SI.Read More
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