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Top JavaScript Agencies

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Backpack Works

San Diego, Canada

Top-Rated Custom Web Engineering & SEO Optimization by Backpack Works

50-249

$ Min. $10,000+

$100 - $149 / hr

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</> React </> Next.js </> Node.js +9

Custom Software Development

backpack-work...

Web Development +2

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Kyros Digital

Grand Rapids, United States

Top-Rated Custom Web Engineering & SEO Optimization by Kyros Digital

50-249

$ Min. $5,000+

$100 - $149 / hr

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</> React </> Next.js </> Node.js +10

Mobile App Development Web Development

kyros-digital...

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Huntsville Web Designs

Huntsville, Albania

Alabama Local SEO, Custom WordPress Web Engineering & Design Studio

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</> React </> JavaScript </> PHP +2

Digital Strategy Pay Per Click Web Design +1

huntsvilleweb...

Web Development +1

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Fifth Tribe

Washington

Top-Rated Custom Web Engineering & SEO Optimization by Fifth Tribe

10-49

$ Min. $5,000+

$50 - $99 / hr

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</> React </> Next.js </> CSS Modules +10

E-Commerce Development Web Design Website Optimization +1

fifthtribe.com

Web Development +3

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agencyQ

Washington, United States

Enterprise Digital Experience Platforms, Data Analytics & Cloud Web Engineering

10-49

$ Min. $10,000+

$50 - $99 / hr

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</> React </> Next.js </> Node.js +5

Custom Software Development Application Management & Support Website Optimization +2

agencyq.com

Web Development +2

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Richard Allan Marketing

Peabody, Morocco

Top-Rated Custom Web Engineering & SEO Optimization by Richard Allan Marketing

50-249

$ Min. $5,000+

$100 - $149 / hr

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</> React </> Next.js </> Node.js +10

Mobile App Development Web Development

richard-allan...

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AF Digital Native

Carlsbad, Canada

Creative Digital Product Strategy & Brand Design Studio

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</> React </> JavaScript </> WordPress +2

Email Marketing Digital Strategy E-Commerce Development +3

afdigitalnati...

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Apsis Labs

Bainbridge Island, United States

Top-Rated Custom Web Engineering & SEO Optimization by Apsis Labs

50-249

$ Min. $10,000+

$100 - $149 / hr

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</> React </> Next.js </> Node.js +9

Custom Software Development

apsis-labs.com

Web Development +1

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Maranta Copy Co.

Lynn Haven

Top-Tier Web Engineering & SEO Digital Solutions by Maranta Copy Co.

10-49

$ Min. $5,000+

$50 - $99 / hr

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

Custom Software Development Website Optimization Web Development +1

maranta-copy-...

Web Development +1

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Ruby Digital Agency

Wilmington, Germany

Top-Rated Custom Web Engineering & SEO Optimization by Ruby Digital Agency

10-49

$ Min. $5,000+

$50 - $99 / hr

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</> React </> Next.js </> CSS Modules +11

E-Commerce Development Web Design Website Optimization +1

ruby-digital-...

Web Development +1

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Engine Room

Philadelphia, Panama

Top-Rated Custom Web Engineering & SEO Optimization by Engine Room

10-49

$ Min. $5,000+

$50 - $99 / hr

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</> React </> Next.js </> CSS Modules +10

E-Commerce Development Web Design Website Optimization +1

engine-room.com

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Manifest Studios

Grand Rapids

Top-Rated Custom Web Engineering & SEO Optimization by Manifest Studios

50-249

$ Min. $10,000+

$100 - $149 / hr

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</> React </> Next.js </> Node.js +9

Custom Software Development

manifest-stud...

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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.