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Top JavaScript Agencies

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The Brandon Agency

Mount Pleasant, United States

South Carolina Full-Service Brand Strategy, Web Engineering & Media Firm

10-49

$ Min. $5,000+

$50 - $99 / hr

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</> React </> JavaScript </> PHP +3

Branding Web Development UI/UX Design +1

brandon.agency

Web Development +2

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UO Solutions

Buenos Aires, Argentina

Performance Digital Marketing, Media Buying & Custom Web Portals

50-249

$ Min. $10,000+

$100 - $149 / hr

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</> Lit </> Hono </> AdonisJS +5

API Development SMS Marketing Affiliate Marketing +1

uosolutions.com

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Black Antelope

Edmonds

San Francisco Enterprise Drupal Web Software & React Engineering Firm

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</> React </> Node.js </> JavaScript +7

Custom Software Development Product Design E-Commerce Development +4

blackantelope...

Web Development +2

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Woland Web

Charlotte, United States

Honest Web Design, Responsive Architecture & UI/UX

50-249

$ Min. $10,000+

$100 - $149 / hr

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</> JavaScript </> PHP </> MySQL +1

Web Design Website Optimization UI/UX Design +1

wolandweb.com

Web Development +1

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BNP Engage

Philadelphia, United States

B2B Performance Marketing, Hubspot Inbound Growth & Web Engineering

50-249

$ Min. $5,000+

$100 - $149 / hr

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</> React </> JavaScript </> PHP +3

Web Design UI/UX Design

bnpengage.com

Web Development +2

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JOS

Atlanta, United States

Asian Enterprise Systems Integration, Managed Cloud IT & Cybersecurity Firm

10-49

$ Min. $5,000+

$50 - $99 / hr

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</> JavaScript </> PHP </> AWS +1

Content Marketing Social Media Marketing Web Design +1

jos.com.hk

Web Development +2

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Mediacurrent

Alpharetta, United States

Enterprise Open Source Web Engineering, Headless Drupal & Digital Product Studio

10-49

$ Min. $5,000+

$50 - $99 / hr

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</> React </> Next.js </> Gatsby +8

UI/UX Design

mediacurrent....

Web Development +1

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Codingscape

Las Vegas

Senior Software Engineering Teams for Custom Web & UX

10 - 49

$ Min. $25,000+

$100 - $149 / hr

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</> React </> Node.js </> JavaScript +3

Mobile App Development Custom Software Development AI Development +3

codingscape.com

Web Development +2

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Efinitytech

Monroe, United States

Custom Web Development, Proprietary CMS & E-Commerce Engineering Studio

10-49

$ Min. $5,000+

$50 - $99 / hr

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</> ASP.NET Core </> JavaScript </> PHP +1

Graphic Design Content Marketing Web Design +1

efinitytech.com

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BigOrange.Marketing

Cincinnati

Inbound Marketing Automation, Custom WordPress & Local SEO Studio

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</> React </> JavaScript </> WordPress +1

Email Marketing Content Marketing Digital Strategy +3

bigorangemark...

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Weidert Group

Appleton

B2B Inbound Marketing Automation, HubSpot Diamond Partner & Web Agency

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</> React </> JavaScript </> WordPress +1

Content Marketing Social Media Marketing Marketing Strategy +6

weidert.com

Web Development +2

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Interactive Strategies

Washington, United States

Washington DC Digital Strategy, Custom Drupal/WordPress & SEO Firm

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</> React </> JavaScript </> WordPress +3

Graphic Design Content Marketing Social Media Marketing +2

interactivest...

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Technology Guide & Market Insights

Hiring JavaScript Agencies: Complete Guide & Overview

JavaScript is a general-purpose programming language used extensively for web development. It runs directly in web browsers for interactive interfaces and can also run on servers, desktop applications, mobile applications, and developer tools. JavaScript supports event-driven and asynchronous programming and has a large ecosystem of libraries and frameworks. It is a core technology for frontend development and is also widely used in full-stack applications through runtimes such as Node.js.

For projects using JavaScript, teams should consider the application's requirements, expected scale, integration points, deployment environment, testing approach, and long-term maintenance. Choosing the technology should also take into account the existing skills of the development team and the libraries or services already used by the product.