Top 100 JavaScript Development Companies in New York City
The Best of November 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+1,000 - 9,999 employeesNew York, NYVention is an artificial intelligence firm. Founded in 2002, the company is based in New York, New York; London, England; Marietta, Georgia and San Francisco, California. The large team focuses on Artificial Intelligence, Custom Software Development, Enterprise App Modernization, cloud consulting & SI, and more.Read More
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IBM PayPal pwc IC MarketsIndustries
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2$50,000+1,000 - 9,999 employeesNew York, NYSigma Software Group, a custom software development company, was launched in 2002. Their large team is located in L'viv, Ukraine; New York, New York; Saratoga, California and Bellevue, Washington and offers Custom Software Development, Mobile App Development, Web Development, BI & big data consulting & SI, and more.Read More
Clients
VolvoIndustries
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3$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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4$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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5$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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6$10,000+50 - 249 employeesNew York, NYWebsite development firm FocusReactive was launched in 2019. Located in Amsterdam, Netherlands; London, England; Warszawa, Poland and New York, New York, their midsize team provides Web Development, Custom Software Development, Web Design, and E-Commerce Development.Read More
Clients
EasyPark Arrive RealThreadIndustries
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7$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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8$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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9$10,000+10 - 49 employeesNew York, NYSmall UX design company Contra Studio, is in Bogotá, Colombia; Ciudad de México, Mexico and New York, New York. They specialize in UX/UI Design, E-Commerce Development, Web Design, Web Development, and more and were established in 2018.Read More
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10$5,000+250 - 999 employeesNew York, NYKonstant Infosolutions is a Jaipur, India-based mobile application development firm. The midsize company was established in 2003. Their team focuses on Mobile App Development, Artificial Intelligence, 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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11$10,000+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.
Clients
AtosIndustries
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12$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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13$10,000+1,000 - 9,999 employeesNew York, NYSDLC Corp is an AI company. The large Dubai, United Arab Emirates-based agency was launched in 2015. Their team focuses on Artificial Intelligence, Custom Software Development, ERP consulting and SI, Web Development, and more.Read More
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14$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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15$10,000+10 - 49 employeesNew York, NYWeb design company Cantilever Web Design & Development was established in 2011. They are based in New York, New York and have a small team. Their services include Web Design, Web Development, Branding, and Marketing Strategy.Read More
Clients
IBMIndustries
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16$100,000+10 - 49 employeesNew York, NYAlley is a web development company. They provide Web Development, Web Design, UX/UI Design, and Digital Strategy and were launched in 2010. The company is based in New York, New York.Read More
Clients
New York Post Hachette Book Group National Science Foundation National Council on AgingIndustries
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17$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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18$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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19$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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20$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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21$25,000+50 - 249 employeesNew York, NYPerpetual is an UX company. Their midsize team is in New York, New York and नवी मुंबई, India and offers UX/UI Design, Web Development, Custom Software Development, Artificial Intelligence, and more. The firm was established in 2012.Read More
Clients
ReutersIndustries
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22$50,000+10 - 49 employeesNew York, NYRead More
noformat is a strategic design agency based in New York City. The agency, founded in 2001, has a team of more than 15 that provides web design, UX/UI design, web development, mobile app development, graphic design, logo, print design, and packaging design services. noformat serves mid-market and other-sized companies in various industries that include advertising & marketing, arts & entertainment, and business services.
Clients
Coca-ColaIndustries
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23$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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24$5,000+10 - 49 employeesNew York, NYInvowork is a New York, New York-based web development firm. Launched in 2022, the small team specializes in Web Development, Mobile App Development, Generative AI, and API Development.Read More
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25$5,000+250 - 999 employeesNew York, NYEstablished in 2010, Riseup Labs is an AI development company. The midsize team focuses on Artificial Intelligence, AI Agents, Generative AI, AI Consulting, and more. The firm is in Dhaka, Bangladesh; London, England; Dubai, United Arab Emirates and Dhaka, Bangladesh.Read More
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26$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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27$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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28$100,000+1,000 - 9,999 employeesNew York, NYRead More
Headquartered in San Francisco, Wizeline is a global technology services provider with delivery centers in Mexico, Colombia, Spain, and Vietnam. Since its founding in 2014, Wizeline has grown to over 1,300 employees specializing in product/platform development, UX design, data & AI, cloud & DevOps, and product evolution services.
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Fitz Frames -
29$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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30$10,000+10 - 49 employeesNew York, NYRead More
Off-Site Services, a web development company, is based in New York, New York. Founded in 2003, the small team specializes in Web Development, IT staff augmentation, E-Commerce Development, and Application Testing.
Clients
SchrodingerIndustries
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