Top 100 JavaScript Development Companies in New York City
The Best of February 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, 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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3$25,000+1,000 - 9,999 employeesNew York, NYVention is a large software development firm founded in 2002. Their team specializes in Custom Software Development, IT staff augmentation, Web Development, Mobile App Development, and more. The company is based in New York, New York; London, England; Marietta, Georgia and San Francisco, California.Read More
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IBM PayPal pwc IC MarketsIndustries
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4$10,000+250 - 999 employeesNew York, NYCleveroad, a custom software development firm, is located in New York, New York; Los Angeles, California; Kharkiv, Ukraine and Manchester, England. The midsize team provides Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more. The agency was launched in 2011.Read More
Clients
DPD Mangopay PENNEO A/S LEGOIndustries
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5$10,000+50 - 249 employeesSanta Monica, CALaunched in 2007, Storm Brain is a web design company. They are located in Carlsbad, California; Costa Mesa, California; Santa Monica, California and New York, New York and have a midsize team. Their services include 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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6$5,000+50 - 249 employeesNew York, NYDigis, a Fiverr company (NYSE: FVRR) is a custom software development company and web development firm. Launched in 2015, the team offers Custom Software Development and Web Development. Their midsize firm is in London, England; New York, New York; București, Romania and L'viv, Ukraine.Read More
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Blablacar Hubspot PwC HumaIndustries
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7$50,000+250 - 999 employeesNew York, NYSoftware development firm Infinum was founded in 2005. They are headquartered in New York, New York; San Francisco, California; Zagreb, Croatia and Ljubljana, Slovenia and have a midsize team. Infinum provides Custom Software Development, Web Development, Mobile App Development, UX/UI Design, and more.Read More
Clients
PhilipsIndustries
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8$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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9$5,000+50 - 249 employeesNew York, NYMOBIKASA is a web development company established in 2011. The midsize team provides Web Development, E-Commerce Development, and Custom Software Development. The firm is based in New York, New York; Los Angeles, California; New Delhi, India and Dubai, United Arab Emirates.Read More
Clients
1800Flowers Perfumania Mielle Organics Fast Growing TreesIndustries
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10$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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11$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
Clients
Health Match 360Industries
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12$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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13$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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14$50,000+250 - 999 employeesNew York, NYRead More
Empat is an app development company established in 2013. They are in San Francisco, California; Kyiv, Ukraine; London, England and Miami, Florida and have a midsize team. Their services include Mobile App Development, Custom Software Development, and Web Development.
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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15$25,000+50 - 249 employeesNew York, NYUnified Infotech is a custom software development company founded in 2010. Their midsize team is located in New York, New York and Kolkata, India and offers Custom Software Development, Web Development, Web Design, IT staff augmentation, and more.Read More
Clients
NBC UniversalIndustries
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16$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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17$25,000+50 - 249 employeesNew York, NYLounge Lizard is a web design company. They are located in New York, New York; Washington, District of Columbia; Nashville, Tennessee and Holbrook, New York and have a midsize team that provides Web Design and Web Development. The agency was founded in 1998.Read More
Clients
A&E Television Andersen Tax Alliance Valley Bean Axium PlasticsIndustries
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18$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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19$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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20$10,000+50 - 249 employeesNew York, NYFounded in 1996, NEWMEDIA.COM is a SEO agency. Their midsize team is based in Denver, Colorado and New York, New York and offers Search Engine Optimization, Web Development, Marketing Strategy, Digital Strategy, and more.Read More
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21$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
Clients
Corning Gorilla GlassIndustries
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22$25,000+10 - 49 employeesBrooklyn, NYRead More
JetRockets, a software development company, is headquartered in Brooklyn, New York. The small team focuses on Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more. The firm was established in 2012.
Clients
LendingOne Safari Portal eBay The Gut StuffIndustries
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23$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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24$10,000+50 - 249 employeesNew York, NYEvince Development is a website development company. Their midsize team is in New York, New York; London, England; Ahmedabad, India and Oslo, Norway. Their services include Web Development, Mobile App Development, Artificial Intelligence, E-Commerce Development, and more. The firm was established in 2012.Read More
Clients
GetTreadIndustries
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25$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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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$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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28$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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29$10,000+50 - 249 employeesZaporizhzhia, UkraineRead More
Founded in 2019, Uinno is an artificial intelligence firm. The midsize team specializes in Artificial Intelligence, Custom Software Development, Low/No Code Development, UX/UI Design, and more. The company is based in L'viv, Ukraine; Tallinn, Estonia; Kingston upon Thames, England and Zaporizhzhia, Ukraine.
Clients
OnlyFansIndustries
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30$10,000+10 - 49 employeesNew York, NYMeanPug Digital is a SEO company founded in 2017. In New York, New York, their small team offers Search Engine Optimization, Pay Per Click, Advertising, Social Media Marketing, and more.Read More
Clients
Wallace LawIndustries
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