Top 100 JavaScript Development Companies in New York City
The Best of April 2026Looking for a top JavaScript developer in New York City?
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 New York City. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best New York City JavaScript Developers
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1$50,000+50 - 249 employeesNew York, NYRead More
XWP is a web agency founded in Chelsea, Australia in 2005 with over 50 employees. They offer web development, web design, and UX/UI design solutions to mid-market and enterprise-level clients in the fields of IT and media.
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GoogleIndustries
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2$50,000+1,000 - 9,999 employeesNew York, NYVention is an IT staff augmentation company. Their large team is in New York, New York; London, England; Marietta, Georgia and San Francisco, California. The company focuses on IT staff augmentation, Custom Software Development, Web Development, Mobile App Development, and more. The company was launched in 2002.Read More
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IBM PayPal pwc IC MarketsIndustries
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3$50,000+1,000 - 9,999 employeesNew York, NYRead More
Headquartered in L'viv, Ukraine; New York, New York; Saratoga, California and Bellevue, Washington, Sigma Software Group is a software development company. The large agency was established in 2002. Their services include Custom Software Development, Web Development, Mobile App Development, BI & big data consulting & SI, and more.
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VolvoIndustries
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4$10,000+250 - 999 employeesNew York, NYCleveroad is a midsize software development firm. They offer Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more and were established in 2011.Read More
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DPD Mangopay PENNEO A/S LEGOIndustries
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5$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
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PhilipsIndustries
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6$10,000+50 - 249 employeesNew York, NYMidsize 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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7$5,000+250 - 999 employeesNew York, NYFounded in 2003, Konstant Infosolutions is a mobile app development company. They are in Jaipur, India; New York, New York; London, England and Dubai, United Arab Emirates and have a midsize team. Their services include Mobile App Development, Artificial Intelligence, UX/UI Design, and Web Development.Read More
Clients
United Nations Volkswagen Stanley Connect DelmonteIndustries
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8$25,000+50 - 249 employeesNew York, NYRead More
Jahnel Group, Inc. is an application development company based in Schenectady, N.Y., with offices in New York and Plano, Texas. The company, founded in 2012, has around 90 employees and provides custom software development, web development, mobile app development, and UX/UI design services. Jahnel Group, Inc. serves midmarket and other-sized companies and institutions in the business services, financial services, gaming, education, manufacturing, medical, and e-commerce industries.
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AtosIndustries
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9$10,000+50 - 249 employeesNew York, NYThoughtbot, a web development firm, is located in New York, New York and London, England. They focus on Web Development, Mobile App Development, UX/UI Design, cloud consulting & SI, and more and were launched in 2003.Read More
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Health Match 360Industries
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10$5,000+50 - 249 employeesNew York, NYFounded in 2015, Digis, a Fiverr company (NYSE: FVRR) is a custom software development company. The midsize team specializes in Custom Software Development, Web Development, and IT staff augmentation. The firm is based in London, England; New York, New York; București, Romania and L'viv, Ukraine.Read More
Clients
Blablacar Hubspot PwC HumaIndustries
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11$10,000+10 - 49 employeesBrooklyn, NYFive Jars, a website development company, is headquartered in Brooklyn, New York; Warszawa, Poland and Arlington, Virginia. Founded in 2017, the small team offers Web Development, Web Design, Mobile App Development, and Artificial Intelligence.Read More
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George Washington’s Mount VernonIndustries
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12$5,000+50 - 249 employeesNew York, NYWeb design company UPQODE was founded in 2015. Located in Nashville, Tennessee; New York, New York; Tampa, Florida and Seattle, Washington, their midsize team specializes in Web Design, Web Development, UX/UI Design, Custom Software Development, and more.Read More
Clients
Gracenote - Entertainment ProvidersIndustries
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13$10,000+250 - 999 employeesNew York, NYEmpat is an app development company founded in 2013. The company offers Mobile App Development, Custom Software Development, Artificial Intelligence, and Web Development and has a midsize team. The company is located in San Francisco, California; Kyiv, Ukraine; London, England and Miami, Florida.Read More
Clients
Obimy — A mobile app connecting loved ones across distances with over 10 million downloads on iOS and Android. Enables seamless communication and emotional connection. Mobile app development and social networking focus. Bigsister — Custom AI software designed for sales performance tracking and analysis, providing clean, accurate data to optimize sales teams and improve efficiency with advanced analytics. Trigga — A fintech project featuring payment systems and a comprehensive analytical database to support secure transactions and financial insights for smarter decision-making. DentalCare — Healthcare ecosystem with mobile app, web development, and CRM tools for managing patient records, tracking appointments, and sending automated reminders to improve patient care.Industries
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14$25,000+10 - 49 employeesBrooklyn, NYRead More
Buzzworthy Studio is a digital studio based in New York. Founded in 2012, the team of 11 specializes in web design, web development and UX/UI design. They work primarily with small business clients.
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WeworkIndustries
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15$25,000+50 - 249 employeesNew York, NYBased in New York, New York and Kolkata, India, Unified Infotech is a software development company. They offer Custom Software Development, Web Development, Web Design, IT staff augmentation, and more and were founded in 2010.Read More
Clients
NBC UniversalIndustries
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16$10,000+10 - 49 employeesNew York, NYAppMakers USA is a mobile application development firm. Founded in 2014, the team focuses on Mobile App Development, Artificial Intelligence, UX/UI Design, and Web Development. Their small firm is headquartered in Los Angeles, California and New York, New York.Read More
Clients
Los Angeles Apparel Walmart Number Hive NFLIndustries
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17$5,000+50 - 249 employeesNew York, NYDigital Heroes, a website development company, is in Lucknow, India; Sheridan, Wyoming and New York, New York. The midsize company was launched in 2017. Their team offers Web Development, Web Design, E-Commerce Development, Search Engine Optimization, and more.Read More
Clients
American Dream Printing OnPoint Product Amanda FDC Pilates PacksIndustries
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18$25,000+50 - 249 employeesNew York, NYLounge Lizard is a web design company. Their midsize team is located in New York, New York; Washington, District of Columbia; Nashville, Tennessee and Holbrook, New York. Their services include Web Design, Web Development, and Branding. The company was established in 1998.Read More
Clients
A&E Television Andersen Tax Alliance Valley Bean Axium PlasticsIndustries
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19$25,000+10 - 49 employeesNew York, NYDedicated Developers is an app development firm. The Atlanta, Georgia-based firm was launched in 2007. The small team focuses on Mobile App Development and Web Development.Read More
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Corning Gorilla GlassIndustries
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20$25,000+10 - 49 employeesNew York, NYTogether is a branding company launched in 2018. The small team specializes in Branding, UX/UI Design, Product Design, Web Development, and more. The agency is located in London, England; New York, New York and San Francisco, California.Read More
Clients
UnitIndustries
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21$25,000+50 - 249 employeesNew York, NYEstablished in 2014, Goji Labs is a custom software development firm. The agency specializes in Custom Software Development, UX/UI Design, Mobile App Development, Web Design, and more and has a midsize team.Read More
Clients
World Health OrganizationIndustries
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22$50,000+50 - 249 employeesNew York, NYSaritasa is a software development company headquartered in Newport Beach, California; New York, New York; Chicago, Illinois and Manhattan Beach, California. The midsize firm was founded in 2005. Their services include Custom Software Development, AR/VR development, Web Development, Mobile App Development, and more.Read More
Clients
Mitsubishi Makita ASCO Power Technologies WinegardIndustries
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23$25,000+10 - 49 employeesBrooklyn, NYJetRockets is an artificial intelligence firm. They focus on Artificial Intelligence, Custom Software Development, Web Development, Mobile App Development, and more and were established in 2012. Their small team is Brooklyn, New York-based.Read More
Clients
LendingOne Safari Portal eBay The Gut StuffIndustries
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24$10,000+250 - 999 employeesNew York, NYRead More
A tech frontrunner since 1989, Zco is a full-stack app development firm offering web, mobile, and animation services. Headquartered in Nashua, New Hampshire with a Boston office, the 200+ specialists comprise a powerhouse team with outstanding and varied proficiencies.
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GolflogixIndustries
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25$25,000+50 - 249 employeesNew York, NYPerpetual is an UX company launched in 2012. The company provides UX/UI Design, Web Development, Low/No Code Development, Web Design, and more and has a midsize team. The company is based in New York, New York and नवी मुंबई, India.Read More
Clients
ReutersIndustries
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26$25,000+10 - 49 employeesNew York, NYSavas Labs is a small web development company founded in 2013. Their services include Web Development, Web Design, UX/UI Design, Custom Software Development, and more. The agency is located in New York, New York; San Francisco, California; Boston, Massachusetts and Washington, District of Columbia.Read More
Clients
Harvard University Environmental Defense Fund Adobe NPRIndustries
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27$100,000+250 - 999 employeesNew York, NYCustom software development firm Coderio was launched in 2017. The midsize New York, New York-based team provides Custom Software Development, IT staff augmentation, Artificial Intelligence, Web Development, and more.Read More
Clients
Coca-Cola McDonald's Visa FedExIndustries
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28$10,000+10 - 49 employeesNew York, NYCustom software development firm Coalesce was established in 2006. The small team provides Custom Software Development, Artificial Intelligence, Branding, UX/UI Design, and more. The company is based in New York, New York; Nashville, Tennessee and Lake Worth Beach, Florida.Read More
Clients
Air Liquide Inman News Knopman MarksIndustries
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29$5,000+10 - 49 employeesNew York, NYBurst Digital is a web design agency. They specialize in Web Design, Web Development, Search Engine Optimization, Branding, and more and were founded in 2018. Their small team is London, England-based.Read More
Clients
Vivienne Westwood - The Vivienne Foundation Artisan AI Cogency Global Moonbeam Car WashIndustries
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30$25,000+250 - 999 employeesNew York, NYRobosoft Technologies Inc. Is a San Francisco, California-based app development company. They offer Mobile App Development, UX/UI Design, Web Development, Custom Software Development, and more and were launched in 1996.Read More
Clients
Warner Bros. Discovery HSBC McDonalds Mercury FinanceIndustries
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