Top 100 JavaScript Developers
The Best of September 2026Looking for a top JavaScript development company?
Developers use JavaScript to make web pages responsive and interactive. JavaScript is a text-based programming language used in web development, typically alongside CSS and HTML. Some common use cases for JavaScript are menus, animations, or interactive maps.
That's why we've created this list of the best JavaScript developers for you to review. Read through company descriptions, former clients, and notable projects to find the best fit for your business.
List of the Best JavaScript Development Companies
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31$50,000+250 - 999 employeesNew York, NYInfinum, a custom software development company, was established in 2005. They are in New York, New York; San Francisco, California; Zagreb, Croatia and Ljubljana, Slovenia and have a midsize team. Their services include Custom Software Development, Web Development, Mobile App Development, UX/UI Design, and more.Read More
Clients
PhilipsIndustries
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32$25,000+50 - 249 employeesLocated in Fremont, California; Bengaluru, India and Singapore, CognitiveClouds is a software development firm. The midsize firm was established in 2012. Their services include Custom Software Development, Web Development, and Mobile App Development.Read More
Clients
WalmartIndustries
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33$50,000+250 - 999 employeesZagreb, CroatiaRead More
Q agency is a software development firm. Their midsize team is based in Zagreb, Croatia and London, England. Their services include Custom Software Development, Web Development, Mobile App Development, UX/UI Design, and more. The agency was launched in 2013.
Clients
The TimesIndustries
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34$25,000+10 - 49 employeesWrocław, PolandNaturaily is an e-commerce development firm. Headquartered in Wrocław, Poland, their small team provides E-Commerce Development, Web Development, and Web Design. The company was established in 2012.Read More
Clients
n8n FGS Global Nerdy Banana TaboolaIndustries
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35$25,000+50 - 249 employeesSanta Clara, CAVardot is a midsize web development company. They specialize in Web Development, Web Design, UX/UI Design, and Enterprise App Modernization and were established in 2011.Read More
Clients
UNICEF UNHCR, the UN Refugee Agency Boston Consulting Group (BCG) InformaIndustries
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36$10,000+10 - 49 employeesPorto, PortugalRead More
Marzee Labs is a web development company that has been offering web design, web development, ad e-commerce development services to their clients since 2013. Their 10 employees are based out of their Porto, Barcelona, London, and Setúbal, Portugal offices.
Clients
ARTEIndustries
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37$10,000+10 - 49 employeesMontevideo, UruguayRead More
Mobile application development company Vangwe was founded in 2020. Their small team is headquartered in Montevideo, Uruguay. Their services include mobile app development, web development, e-commerce development, and product design.
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38$25,000+50 - 249 employeesCypress, CAHeadquartered in Cypress, California and Quito, Ecuador, Oshyn is a website development firm. The company specializes in Web Development and is midsize.The company was founded in 2001.Read More
Clients
Oshyn has completed projects for over 300 clientsIndustries
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39$25,000+50 - 249 employeesL'viv, UkraineFounded in 2014, S-PRO is a web development firm. They are headquartered in L'viv, Ukraine; Łódź, Poland; Berlin, Germany and London, England and have a midsize team. The company provides Web Development, Artificial Intelligence, Mobile App Development, Custom Software Development, and more.Read More
Clients
Hastings DeeringIndustries
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40$50,000+50 - 249 employeesBristol, EnglandRead More
Torchbox is a web design agency launched in 2000. The firm focuses on web design, web development, ux/ui design, pay per click, and more and has a midsize team.
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41$10,000+50 - 249 employeesNadiad, IndiaMobile app development company Groovy Technoweb Pvt. Ltd. Was established in 2015. The midsize team offers Mobile App Development, Web Development, and Custom Software Development. The firm is in Nadiad, India; Ahmedabad, India; Baulkham Hills, Australia and Berlin, Germany.Read More
Clients
MyCribBooking MalaysiaIndustries
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42$5,000+10 - 49 employeesKyiv, UkraineRead More
Stubbs is a web studio founded in 2018 with more than two members. Based in Kyiv, Ukraine, they specialize in web development, web design, and UX/UI design solutions for small and mid-market businesses in the field of IT services.
Clients
Olexandr UsykIndustries
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43$10,000+50 - 249 employeesKyiv, UkraineRead More
Software provider Django Stars is based in Kiev, Ukraine. Founded in 2008, the agency and their team of 60 specializes in web and custom software development for primarily midmarket clients.
Clients
MoneyParkIndustries
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44Undisclosed50 - 249 employeesWrocław, PolandMidsize application development firm Callstack, is based in Wrocław, Poland. Established in 2016, the team specializes in Mobile App Development and Web Development.Read More
Clients
ExpensifyIndustries
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45$10,000+50 - 249 employeesCluj-Napoca, RomaniaWeb development firm WOLFPACK DIGITAL was established in 2015. In Cluj-Napoca, Romania; Dublin, Ireland and Kirkland, Washington, their midsize team provides Web Development, Mobile App Development, and Artificial Intelligence.Read More
Clients
Walgreens Boots Alliance Abbvie Corrib Oil SephoraIndustries
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46$50,000+50 - 249 employeesSofia, BulgariaHeadquartered in Tallinn, Estonia; Sofia, Bulgaria; Kharkiv, Ukraine and Vinnytsia, Ukraine, CodeIT is an AI Consulting company. Founded in 2007, the midsize team provides AI Consulting, Artificial Intelligence, and Web Development.Read More
Clients
RoomsterIndustries
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47$10,000+50 - 249 employeesBurlington, CanadaRead More
Danavero Inc. Is a website development firm located in Burlington, Canada; Kyiv, Ukraine and North Bethesda, Maryland. The midsize team specializes in Web Development, Custom Software Development, and Mobile App Development and was founded in 2015.
Clients
Olympic ExpressIndustries
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48$25,000+50 - 249 employeesAmsterdam, NetherlandsRead More
Attract Group is a development agency based in Odessa, Ukraine. Since 2011, their team of 43 has been specializing in web, mobile app, e-commerce development, and more. Attract Group works with small to mid-sized clients.
Clients
Modern Trade LtdIndustries
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49$10,000+50 - 249 employeesCarlsbad, CAMidsize web design agency Storm Brain, is headquartered in Carlsbad, California; Costa Mesa, California; Santa Monica, California and New York, New York. Founded in 2007, the team focuses on Web Design, Web Development, Search Engine Optimization, Pay Per Click, and more.Read More
Clients
Nike Chase (JPMorgan Chase & Co.) Citi (Citigroup) TargetIndustries
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50$25,000+50 - 249 employeesYerevan, ArmeniaRead More
Simply Technologies is a software development company located in Yerevan, Armenia, with additional locations in Kharkiv, Ukraine and Sydney. It was founded in 2011 and has 27 employees. They offer web development and mobile app development services.
Clients
GoodFoodIndustries
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51$10,000+50 - 249 employeesWarszawa, PolandFireart Studio is a website development company in Warszawa, Poland; New York, New York; London, England and Oslo, Norway. The midsize agency was founded in 2013. Their services include Web Development, Custom Software Development, Web Design, UX/UI Design, and more.Read More
Clients
Google Pipedrive Rolls-Royce FreeNowIndustries
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52$10,000+50 - 249 employeesKharkiv, UkraineRead More
Established in 2013, SpdLoad is a mobile application development firm. Headquartered in Kharkiv, Ukraine, their midsize team provides Mobile App Development, Web Development, UX/UI Design, Generative AI, and more.
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53$5,000+50 - 249 employeesAhmedabad, IndiaWebsite development company Tridhya Tech Limited was founded in 2018. They are in Ahmedabad, India; Suwanee, Georgia; London, England and Dubai, United Arab Emirates and have a midsize team. Their services include Web Development, Mobile App Development, Generative AI, E-Commerce Development, and more.Read More
Clients
Puma EnergyIndustries
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54$25,000+50 - 249 employeesWarszawa, PolandRead More
Fively is a web development company based in Warsaw, Poland. Founded in 2018, they have 100+ employees specializing in full-cycle web app development for small and midsize businesses in eCommerce, FinTech, Real Estate, and HealthTech industries. Services include web development, cloud development, workflow automation, and system integration.
Clients
SNAPIndustries
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55$25,000+50 - 249 employeesL'viv, UkraineIncora is a L'viv, Ukraine-based software development company. The midsize team specializes in Custom Software Development, Web Development, Artificial Intelligence, Mobile App Development, and more. The agency was founded in 2015.Read More
Clients
Ralph WutscherIndustries
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56$25,000+50 - 249 employeesBiałystok, PolandPagepro is a web development firm. The midsize team is in Białystok, Poland and London, England. Their services include Web Development, Mobile App Development, Custom Software Development, and Low/No Code Development.Read More
Clients
ScaleupsIndustries
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57$25,000+50 - 249 employeesPrague, Czech RepublicBased in Prague, Czech Republic, OAKS LAB is a custom software development company. The agency provides Custom Software Development, Web Development, Artificial Intelligence, IT staff augmentation, and more and is midsize.The agency was launched in 2016.Read More
Clients
Blue Owl Productboard Nasdaq Private Market Blackpoint CyberIndustries
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58$25,000+50 - 249 employeesMiami, FLLaunched in 2017, SpaceDev is a Blockchain company. The midsize Montevideo, Uruguay-based team provides Blockchain, Custom Software Development, Mobile App Development, IT staff augmentation, and more.Read More
Clients
Drata – Compliance Automation PlatformIndustries
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59$5,000+10 - 49 employeesPoltava, UkraineRead More
In Poltava, Ukraine, Aleannlab is a small web development company. Launched in 2015, the team offers web development and mobile app development.
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60$50,000+1,000 - 9,999 employeesL'viv, UkraineSigma Software Group is a large mobile application development firm. Founded in 2002, the agency is based in L'viv, Ukraine; New York, New York; Saratoga, California and Bellevue, Washington. Their services include Mobile App Development, Custom Software Development, Web Development, BI & big data consulting & SI, and more.Read More
Clients
VolvoIndustries
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JavaScript Development Companies FAQs
The most popular JavaScript development companies out there may not be the right match for your company's needs. Here are some FAQs to get you thinking about your business needs, which will help you find the right match.
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What is JavaScript used for?
JavaScript is one of the main programming languages in the web development industry today. Many developers utilize JavaScript to create interactive features for websites and applications. Many prefer it because it can produce responsive UI and animations.
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Is JavaScript still widely used?
Yes, JavaScript is widely used in the market and is considered one of the popular options in the programming language space. It has been proven to be a consistent and capable programming language for creating interactive and modern features for websites and applications.
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Which top companies use JavaScript?
A lot of established companies and businesses utilize JavaScript, but some of the notable ones are Facebook, Amazon, Netflix, Google, and even Microsoft. These companies utilize JavaScript for web development projects including their front-end and back-end needs.