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Top JavaScript Agencies

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Web Development +2

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Mobi Lab

Tartu, Estonia

European Human-Centered Mobile App Engineering, IoT & UX Design Agency

10-49

$ Min. $5,000+

$50 - $99 / hr

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</> NestJS </> FastAPI </> Flask +8

AR/VR Development API Development UI/UX Design +1

lab.mobi

Mobile App Development +1

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AppKong

Wilmington

User-Friendly Mobile App Development & App Store Compliance

10 - 49

$ Min. $10,000+

$50 - $99 / hr

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

Mobile App Development Web Development

appkong.com

Web Development +2

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Appdrawn Software Development

London, United Kingdom

Custom Web Application Development, Native Mobile Apps & Cloud Backends

10-49

$ Min. $10,000+

$50 - $99 / hr

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</> React </> Ember.js </> Node.js +8

AR/VR Development API Development Search Engine Optimization +1

appdrawn.com

Web Development +1

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Demigos

Kyiv, Ukraine

HealthTech & AgeTech Custom Web/Mobile Software Engineering

10 - 49

$ Min. $15,000+

$50 - $99 / hr

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

Mobile App Development Custom Software Development UX/UI Design +1

demigos.com

Mobile App Development +1

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Intergalactic Agency Inc.

Vancouver, Canada

System Integration & Custom Interactive Mobile Software

10 - 49

$ Min. $25,000+

$100 - $149 / hr

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</> Node.js </> JavaScript </> Kotlin +1

AR/VR Development Mobile App Development Custom Software Development +2

intergalactic...

Mobile App Development

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Angrybuilds

Remote

European Custom Mobile Software Engineering, React Native & Flutter

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</> React </> Node.js </> JavaScript +6

Mobile App Development Custom Software Development UX/UI Design

angrybuilds.com

Mobile App Development

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FarShore

Chicago, Israel

Global Custom Software Product & Web Development Agency

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</> React </> Node.js </> Laravel +6

Mobile App Development UX/UI Design Web Development

farshore.com

Mobile App Development

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Big Human

New York

New York Premier Digital Product Studio, Web Engineering & UI Agency

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

Mobile App Development Product Design Branding +2

bighuman.com

Mobile App Development

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House of Apps

Coeur d'Alene, Indonesia

Enterprise Mobile App Development & Web Software Studio

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</> React </> Node.js </> JavaScript +6

Mobile App Development Custom Software Development AI Development +1

houseofapps.nl

Web Development +1

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ProCoders

Lisboa, Portugal

Outstaffing Software Engineers & Cross-Platform Mobile Apps

50 - 249

$ Min. $10,000+

$50 - $99 / hr

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

Mobile App Development IT Staff Augmentation Web Development +1

procoders.tech

Mobile App Development

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Tapston

Tallinn, Estonia

Baltic Mobile App Engineering, FinTech Native SDKs & Cross-Platform Software

10-49

$ Min. $5,000+

$50 - $99 / hr

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</> Node.js </> JavaScript </> Kotlin +4

Mobile App Development Custom Software Development UI/UX Design

tapston.com

Mobile App Development +1

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Publex

Netanya, Israel

High-Performance Mobile Software Engineering (iOS & Android)

10 - 49

$ Min. $10,000+

$50 - $99 / hr

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

Mobile App Development Custom Software Development

publex.io

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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.