Top 100 JavaScript Development Companies in New York City
The Best of July 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$10,000+10 - 49 employeesNew York, NYEstablished in 2019, FocusReactive is a small website development firm based in Amsterdam, Netherlands; London, England; Warszawa, Poland and New York, New York. Their services include Web Development, Custom Software Development, E-Commerce Development, and Web Design.Read More
Clients
EasyPark Arrive RealThreadIndustries
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2$50,000+50 - 249 employeesNew York, NYBased in Chelsea, Australia and New York, New York, XWP is a web development firm. The midsize firm was founded in 2005. Their services include Web Development, Web Design, and UX/UI Design.Read More
Clients
GoogleIndustries
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3$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
Clients
IBM PayPal pwc IC MarketsIndustries
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4$10,000+250 - 999 employeesNew York, NYCleveroad is a software development company. Their midsize team is located in New York, New York; Los Angeles, California; Kharkiv, Ukraine and Manchester, England. Their services include Custom Software Development, Web Development, Mobile App Development, ERP consulting and SI, and more. The firm was founded in 2011.Read More
Clients
DPD - A leading international parcel delivery network, DPD delivers millions of packages daily. Operating across Europe and worldwide, they combine innovative technology and local knowledge to provide flexible, efficient logistics solutions. Codex Labs - A pioneering biotech and skintech company developing clinically proven, plant-based solutions for dermatological health. They leverage data-driven science, AI skin imaging, and advanced microbiome research to disrupt global wellness markets. Mangopay - A flexible, modular payment infrastructure provider designed specifically for marketplaces and platforms. They offer end-to-end payment payouts, compliance tools, and escrow solutions to streamline complex global digital transactions. PENNEO A/S - A prominent Scandinavian SaaS company specializing in digital identity, secure e-signatures, and KYC workflow automation. They enable heavily regulated industries to streamline client onboarding while meeting strict compliance standards.Industries
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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
Clients
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$50,000+1,000 - 9,999 employeesNew York, NYSigma 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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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 - Global communication & socio-economic cooperation platform. Volkswagen - Corporate workforce & employee management app. Delmonte - Enterprise food distribution optimization platform. Thomasville - Government utility department managing public infrastructure.Industries
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9$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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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
Clients
George Washington’s Mount VernonIndustries
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12$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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13$25,000+50 - 249 employeesNew York, NYWeb design company Lounge Lizard was launched in 1998. They are headquartered in New York, New York; Washington, District of Columbia; Nashville, Tennessee and Holbrook, New York and have a midsize team. Lounge Lizard specializes in Web Design, Web Development, and Branding.Read More
Clients
A&E Television Andersen Tax Alliance Valley Bean Axium PlasticsIndustries
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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.
Clients
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$5,000+50 - 249 employeesNew York, NYUPQODE 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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17$10,000+250 - 999 employeesNew York, NYSDLC Corp is an AI development company. The Dubai, United Arab Emirates-based agency was launched in 2015. The midsize team focuses on Artificial Intelligence, Web Development, ERP consulting and SI, Custom Software Development, and more.Read More
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18$75,000+250 - 999 employeesNew York, NYFueled is an app development firm. The New York, New York-based agency was launched in 2007. The midsize team specializes in Mobile App Development, UX/UI Design, Web Development, and Web Design.Read More
Clients
MGM Resorts InternationalIndustries
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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
Clients
Corning Gorilla GlassIndustries
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20$50,000+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$100,000+250 - 999 employeesNew York, NYCoderio is an artificial intelligence development company. They provide Artificial Intelligence, IT staff augmentation, Custom Software Development, Web Development, and more and were founded in 2017. Their midsize team is headquartered in New York, New York; C1425BYF, Argentina; Jesús María, Peru and Montevideo, Uruguay.Read More
Clients
Coca-Cola McDonald's Visa FedExIndustries
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22$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.
Clients
GolflogixIndustries
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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$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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25$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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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$5,000+10 - 49 employeesNew York, NYBurst Digital is a web design company. Established in 2018, the company is located in London, England; New York, New York and San Francisco, California. The small team offers Web Design, Web Development, Search Engine Optimization, Branding, and more.Read More
Clients
Vivienne Westwood - The Vivienne Foundation Artisan AI Cogency Global Moonbeam Car WashIndustries
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28$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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29$10,000+50 - 249 employeesNew York, NYRead 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$25,000+50 - 249 employeesNew York, NYApptunix is a mobile application development company headquartered in Sahibzada Ajit Singh Nagar, India; New York, New York; Dubai, United Arab Emirates and London, England. Founded in 2013, the midsize team offers Mobile App Development, Custom Software Development, Artificial Intelligence, IT staff augmentation, and more.Read More
Industries
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