Top 100 JavaScript Developers
The Best of August 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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151$5,000+50 - 249 employeesKyiv, UkraineROCKETECH, a custom software development firm, was launched in 2015. They are headquartered in Kyiv, Ukraine; Singapore, Singapore; London, England and San Francisco, California and have a midsize team. ROCKETECH offers Custom Software Development, Blockchain, Mobile App Development, and Web Development.Read More
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GalamartIndustries
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152$1,000+50 - 249 employeesIvano-Frankivs'k, UkraineRead More
Founded in 2003, iDeus is a design and development agency based in Kharkiv, Ukraine. With over 50 team members, iDeus provides its clients with mobile app development, web development, web design, UX/UI design, e-commerce development, custom software development, SEO and IT strategy consulting. iDeus has clients in the consumer products & services, education, business services and automotive industries.
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PlanitIndustries
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153$25,000+10 - 49 employeesArlington, VA3Advance, a mobile app development firm, is based in Arlington, Virginia and Austin, Texas. The small company was launched in 2010. Their services include Mobile App Development, Custom Software Development, Web Development, Artificial Intelligence, and more.Read More
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StartupsIndustries
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154$10,000+50 - 249 employeesWarszawa, PolandAI company Fulcrum was established in 2018. Based in Warszawa, Poland; Sheridan, Wyoming and Kyiv, Ukraine, their midsize team provides Artificial Intelligence, Custom Software Development, IT staff augmentation, Web Development, and more.Read More
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Mercedes website (Mercedes Car Dealership in Ukraine)Industries
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155$10,000+50 - 249 employeesKyiv, UkraineOVERCODE, a web development firm, is located in London, England; Kyiv, Ukraine; San Francisco, California and Toronto, Canada. The midsize company was founded in 2018. Their services include Web Development, Mobile App Development, Web Design, UX/UI Design, and more.Read More
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SignifAI (New Relic)Industries
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156$25,000+50 - 249 employeesAustin, TXBRIGHTSCOUT, a branding company, was founded in 2017. They are in Austin, Texas; Santa Fe de la Vera Cruz, Argentina; Beograd, Serbia and Gurugram, India and have a midsize team. Their services include Branding, Custom Software Development, Web Design, UX/UI Design, and more.Read More
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157$10,000+50 - 249 employeesChernivtsi, UkraineInventorsoft is an IT staff augmentation company. Launched in 2015, the team focuses on IT staff augmentation, Custom Software Development, Web Development, and Mobile App Development. Their midsize company is Chernivtsi, Ukraine-based.Read More
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Stotle Matics Techinov portal MedisheScholingIndustries
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158$10,000+50 - 249 employeesInteractivated Solutions is an AI development company headquartered in Groningen, Netherlands and Miami, Florida. The midsize agency was founded in 2013. Their services include Artificial Intelligence, IT staff augmentation, UX/UI Design, Custom Software Development, and more.Read More
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AllyMS USA/CanadaIndustries
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159$25,000+50 - 249 employeesNovi Sad, SerbiaRead More
JSGuru is a custom software development company with offices in Eastern Europe (Serbia, Bosnia, and Herzegovina) and the USA (New York). Founded in 2006, their team of over 80 people handles mostly mid-market clients in fintech, insurtech, real estate, and marketing. Their services include product discovery, UX/UI design, software development, cloud and DevOps.
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T-SystemsIndustries
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160$50,000+10 - 49 employeesChicago, ILRead More
Red Foundry is a mobile application design and development consulting firm based in Chicago. Founded in 2009, they create native and cross-platform mobile applications for the iOS and Android platforms. The team provides UX/UI product design, full-stack application development (mobile apps, APIs and backend) and proactive post-launch support and maintenance services. Red Foundry’s clients include entrepreneurs and startups, small companies, and mid-market corporations.
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Cooper's Hawk Bell Xcel Communications Data Group (CDG) Reyes HoldingsIndustries
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161$10,000+50 - 249 employeesLondon, EnglandFounded in 2020, Old.St Labs is an AI company. The midsize team provides Artificial Intelligence, Custom Software Development, Web Development, and Mobile App Development. The firm is based in London, England.Read More
Clients
Mariana UFP The Military App Allegr East CareIndustries
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162$75,000+50 - 249 employeesBoston, MARead More
Web development company 10up is headquartered in Sacramento, California; Boston, Massachusetts; New York, New York and London, United Kingdom. The agency provides web development, ux/ui design, web design, digital strategy, and more and is midsize.The agency was established in 2011.
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163$5,000+50 - 249 employeesNashville, TNUPQODE is a web design agency headquartered in Nashville, Tennessee; New York, New York; Tampa, Florida and Seattle, Washington. The midsize firm was launched in 2015. Their services include Web Design, UX/UI Design, and Web Development.Read More
Clients
Gracenote - Entertainment ProvidersIndustries
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164$10,000+50 - 249 employeesGdańsk, PolandNeoteric is a midsize Generative AI company. Headquartered in Gdańsk, Poland and New York, New York, the company was founded in 2005. Their services include Generative AI, Artificial Intelligence, AI Consulting, Custom Software Development, and more.Read More
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KIONA (Energy, Utilities), Siemens (Electronics), Nestle (FMCG), The World Bank (Finance), Liveramp (Data integration), Boeing (Aviation), Crowdstrike (Cybersecurity), Apporchid (AI), Nanoramic (Energy), Client.io (Diagramming), yWorks (Diagramming)Industries
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165$10,000+10 - 49 employeesRead More
Merge Rocks is a small user experience company. Founded in 2018, the agency is in Tallinn, Estonia. Their team specializes in UX/UI Design, Web Design, and Web Development.
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166$10,000+10 - 49 employeesMünchen, Germany&why Studio is a website development firm. Based in München, Germany and Berlin, Germany, their small team provides Web Development, UX/UI Design, Branding, Digital Strategy, and more. The company was launched in 2009.Read More
Clients
KKL Luzern GOLDBECK FreeNow DanoneIndustries
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167$1,000+10 - 49 employeesChicago, ILVALMAX is a web design company launched in 2019. They are based in Chicago, Illinois; Zürich, Switzerland and Odesa, Ukraine and have a small team. The agency focuses on Web Design, Branding, UX/UI Design, E-Commerce Development, and more.Read More
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168$10,000+50 - 249 employeesRzeszów, PolandLocated in Rzeszów, Poland; Dnipro, Ukraine and Arezzo, Italy, Sintra - Digital Business. Poland is an e-commerce development firm. The midsize team specializes in E-Commerce Development, IT strategy consulting, Business Consulting, Web Development, and more and was launched in 2016.Read More
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Vegamour - Hair care and beauty company using science-driven approach to address hair health. Inc. 5000, No. 152 (2022) 3,284% 3-Year Growth.Industries
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169$25,000+50 - 249 employeesBoston, MAVAIRIX Software Development is a Montevideo, Uruguay-based custom software development company. The midsize firm was launched in 2010. Their services include Custom Software Development, IT staff augmentation, Mobile App Development, other IT consulting and SI, and more.Read More
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170$1,000+250 - 999 employeesLagos, NigeriaTalosmart is a web development firm. Their midsize team is located in Lagos, Nigeria; San Francisco, California; London, England and Dubai, United Arab Emirates. Their services include Web Development, Web Design, Mobile App Development, and E-Commerce Development. The firm was launched in 2014.Read More
Clients
National Postgraduate Medical College of NigeriaIndustries
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171$25,000+10 - 49 employeesKelowna, CanadaLocated in Kelowna, Canada, Twirling Umbrellas is a small web design agency and website development company. They specialize in Web Design and Web Development and were founded in 2014.Read More
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Canadian Association of Science Centres (CASC) Canadian Association of Snowboard Instructors (CASI) Acera Insurance Northern Lights CollegeIndustries
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172$25,000+50 - 249 employeesKraków, PolandDBB Software is a custom software development company. Launched in 2015, the team focuses on Custom Software Development, Web Development, Mobile App Development, E-Commerce Development, and more. Their midsize firm is in Kraków, Poland and Dnipro, Ukraine.Read More
Clients
JLL Akamai DispatchHealth DoctifyIndustries
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173$1,000+50 - 249 employeesKyiv, UkraineDRUM'N'CODE is a Kyiv, Ukraine-based custom software development company. They focus on Custom Software Development, Web Development, Web Design, UX/UI Design, and more and were founded in 2015.Read More
Clients
ViddyozeIndustries
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174$10,000+10 - 49 employeesJohannesburg, South AfricaBrave Digital, a web development company, was launched in 2002. Headquartered in Johannesburg, South Africa and Cape Town, South Africa, their small team focuses on Web Development, Web Design, and Custom Software Development.Read More
Clients
Accenture De Beers Fleishman Hillard Housing MasterIndustries
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175$25,000+50 - 249 employeesLas Palmas de Gran Canaria, SpainLasting Dynamics is a midsize app development company. Founded in 2015, the company is headquartered in Torre del Greco, Italy and Las Palmas de Gran Canaria, Spain. Their team offers Mobile App Development, Web Development, Artificial Intelligence, Custom Software Development, and more.Read More
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Sunrise.chIndustries
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176$10,000+50 - 249 employeesBerkeley, CARead More
Founded in 2016, Crowdbotics is a development company based in Berkeley, Calif. They work with businesses of all sizes in the business services, consumer products, and healthcare fields.
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StripeIndustries
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177$25,000+50 - 249 employeesPoznań, PolandRead More
Apptension is a creative product studio with almost a decade of experience and 70+ specialists on board. Their bread and butter is pushing the envelope of what innovative digital experiences can look, feel and work like.
Working with founders, investors, and top creative agencies, they bring out-of-the-box thinking, great design, and plenty of technical competence. From an early-stage startup to Uber, they serve clients of various needs and sizes.Clients
NetflixIndustries
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178$10,000+50 - 249 employeesHyderabad, IndiaAI firm Ahex Technologies was launched in 2009. Their midsize team is in Hyderabad, India and Middletown, Delaware. Ahex Technologies focuses on Artificial Intelligence, AI Agents, ERP consulting and SI, Mobile App Development, and more.Read More
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SamsungIndustries
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179$50,000+250 - 999 employeesPoznań, PolandRead More
Netguru is a custom software development firm. They are based in Poznań, Poland and have a midsize team that specializes in Custom Software Development, Web Development, Mobile App Development, Web Design, and more. The agency was founded in 2008.
Clients
UBSIndustries
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180$10,000+10 - 49 employeesZürich, SwitzerlandAxisbits GmbH, a web development firm, was launched in 2013. The small Zürich, Switzerland-based team focuses on Web Development, Mobile App Development, Web Design, and Artificial Intelligence.Read More
Clients
Regal Wings Inc.Industries
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Connect with a JavaScript Developers that received the most new reviews in the past 12 months.
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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.