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Top JavaScript Developers

JavaScript powers everything from interactive websites to complex enterprise applications. Partnering with an experienced JavaScript development agency ensures your product is fast, secure, and ready to scale. Clutch makes it easy to find trusted providers by publishing in-depth, verified client reviews and transparent performance data. Use our filters to sort agencies by budget, location, framework expertise, and more. Looking for regional specialists? Browse firms in the United States, United Kingdom, or Canada to compare portfolios and pricing in your market. Start exploring today and shortlist partners that align with your goals.
Ratings Updated: September 19, 2026
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22,371 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

  • Gayu IT Services Logotype

    Gayu IT Services

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    Freelancer

    Services provided

    25% Web Development
    25% Search Engine Optimization
    25% UX/UI Design +1
    25% Web Design

    Focus Areas

    50% JavaScript
    50% HTML5

    Established in 2025, Gayu IT Services is a SEO agency. Their services include Search Engine Optimization and Web Design.

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  • Grey Creative Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    Freelancer
    Przasnysz, Poland

    Services provided

    50% Web Development
    25% AI Development
    25% UX/UI Design

    Focus Areas

    25% JavaScript
    25% PHP
    25% Typescript +3
    10% SQL
    10% XML
    5% HTML5

    Based in Przasnysz, Poland, Grey Creative is a small web design company. Their services include Web Design and UX/UI Design.

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  • Rabi Hussain Logotype

    Rabi Hussain

    Not yet reviewed

    $1,000+
    < $25 / hr
    Freelancer

    Services provided

    25% Web Development
    25% Mobile App Development
    25% UX/UI Design +1
    25% Web Design

    Focus Areas

    50% JavaScript
    50% HTML5

    Rabi Hussain is a lahore, Pakistan-based web design agency. The team offers Web Design and UX/UI Design.

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  • Krishiv Innovations Private Limited Logotype

    5.0 1 review
    $1,000+
    $25 - $49 / hr
    10 - 49
    Ahmedabad, India

    Services provided

    20% Web Development
    20% Custom Software Development
    20% DevOps Managed Services +2
    20% Microservices Architecture Services
    20% Mobile App Development

    Focus Areas

    10% JavaScript
    30% C#
    20% ASP.NET +3
    20% SQL
    10% Typescript
    10% jquery

    Krishiv Innovations is a forward-thinking software development company based in Ahmedabad, India. As a trailblazer in the digital landscape, we are committed to delivering cutting-edge technology

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  • Genaro Palma SEO Logotype

    Genaro Palma SEO

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    12% Web Development
    75% Search Engine Optimization
    13% Web Design

    Focus Areas

    40% JavaScript
    40% Other programming & scripting languages
    20% PHP

    Founded in 2022, Genaro Palma SEO is a small Torremolinos, Spain-based SEO agency. Their team specializes in Search Engine Optimization and Web Design.

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  • DSK Solutions Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    10 - 49
    Hyderabad, India

    Services provided

    10% Web Development
    10% AI Development
    10% API Development +7
    10% Custom Software Development
    10% DevOps Managed Services
    10% E-Commerce Development
    10% Microservices Architecture Services
    10% Mobile App Development
    10% Other Application Development
    10% UX/UI Design

    Focus Areas

    15% JavaScript
    20% PHP
    20% Python +3
    20% SQL
    15% Java
    10% Ruby

    DSK Solutions, an user experience company, offers UX/UI Design and Custom Software Development. The company is in Hyderabad, India.

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  • Saynin Tech Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    2 - 9
    Karachi, Pakistan

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Digital Strategy +2
    20% Graphic Design
    20% Mobile App Development

    Focus Areas

    10% JavaScript
    30% Python
    15% HTML5 +5
    15% PHP
    10% C++
    10% jquery
    5% Apex
    5% Java

    Saynin Tech is a Digital Strategy company. Their small team is based in Karachi, Pakistan and provides Digital Strategy and Graphic Design. The company was founded in 2024.

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  • Veta AI Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9
    Sukkur, Pakistan

    Services provided

    20% Web Development
    20% AI Agents
    20% AI Development +2
    20% Custom Software Development
    20% Generative AI

    Focus Areas

    10% JavaScript
    35% Python
    15% AJAX +5
    15% PHP
    10% SQL
    5% Other programming & scripting languages
    5% XML
    5% jquery

    Small software development firm Veta AI, is in Sukkur, Pakistan. The team provides Custom Software Development and Web Development.

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  • Outstep Technologies Logotype

    Outstep Technologies

    Not yet reviewed

    Undisclosed
    < $25 / hr
    Freelancer

    Services provided

    20% Web Development
    30% Custom Software Development
    30% Generative AI +2
    10% API Development
    10% Application Management & Support

    Focus Areas

    45% JavaScript
    30% Python
    10% HTML5 +2
    10% Typescript
    5% SQL

    Outstep Technologies is a software development firm. The Faisalabad, Pakistan-based firm offers Custom Software Development and Generative AI.

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  • DigiTechMatrix Logotype

    DigiTechMatrix

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    20% Web Development
    20% Application Testing
    20% Custom Software Development +2
    20% Mobile App Development
    20% Social Media Marketing

    Focus Areas

    20% JavaScript
    20% Kotlin
    20% Ruby +2
    20% SQL
    20% Swift

    DigiTechMatrix is a social media marketing agency. The small Noida, India-based team specializes in Social Media Marketing and Custom Software Development. The company was founded in 2024.

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  • M2Poweri Ltd Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    Freelancer
    London, England

    Services provided

    35% Web Development
    25% Search Engine Optimization
    20% UX/UI Design +2
    15% API Development
    5% Mobile App Development

    Focus Areas

    30% JavaScript
    24% Typescript
    16% HTML5 +3
    15% Python
    10% SQL
    5% Java

    M2Poweri Ltd, a website development company, is headquartered in London, England. The team offers Web Development and Search Engine Optimization.

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  • VEXO Labs Logotype

    VEXO Labs

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    10 - 49

    Services provided

    10% Web Development
    15% AI Development
    15% Generative AI +7
    15% Low/No Code Development
    10% Custom Software Development
    10% E-Commerce Development
    10% Mobile App Development
    5% Blockchain
    5% Data Annotation Services
    5% DevOps Managed Services

    Focus Areas

    25% JavaScript
    55% Python
    10% ASP.NET +2
    5% Java
    5% Kotlin

    VEXO Labs, an AI development company, was launched in 2021. The team offers Artificial Intelligence and Web Development and is located in Soham, England.

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  • SoftDeveloper Logotype

    5.0 1 review
    $10,000+
    $50 - $99 / hr
    2 - 9
    Pamiers, France

    Services provided

    10% Web Development
    10% Branding
    10% Business Consulting +7
    10% Custom Software Development
    10% Customer Service Outsourcing
    10% Ecommerce Marketing
    10% IT Managed Services
    10% Mobile App Development
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% Ember.js +7
    10% Kotlin
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% Redux
    10% SQL
    10% Visual Basic

    SoftDeveloper specializes in Website Development and Web Design, offering services that enhance the speed and modernity of clients' online platforms. Overall feedback highlights the company's professional developers and good value for cost, despite some project management delays attributed to the client's side. Clients appreciate the innovative solutions SoftDeveloper provides to meet their needs.

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  • Codify Idea Logotype

    5.0 1 review
    $5,000+
    $25 - $49 / hr
    2 - 9
    Cluj-Napoca, Romania

    Services provided

    10% Web Development
    50% Custom Software Development
    10% IT Staff Augmentation +4
    10% IT Strategy Consulting
    10% Microservices Architecture Services
    5% Application Testing
    5% Mobile App Development

    Focus Areas

    10% JavaScript
    60% Java
    10% HTML5 +3
    10% Typescript
    5% Other programming & scripting languages
    5% SQL

    Codify Idea specializes in developing customized cloud-based solutions, notably interface systems such as the Danish Digital Post platform. Reviews highlight their attention to detail, rapid and reliable delivery, and strong system-level expertise, demonstrating effective project management and a deep understanding of system architecture. Clients appreciate their ability to deliver high-quality, problem-free solutions promptly.

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  • WorldWebCreation Logotype

    WorldWebCreation

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    10% Content Marketing
    10% Conversion Optimization +7
    10% Digital Strategy
    10% E-Commerce Development
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% ASP.NET +7
    10% C#
    10% C++
    10% Java
    10% Other programming & scripting languages
    10% PHP
    10% SQL
    10% XML

    WorldWebCreation is a small Content Marketing company based in Indore, India. Their services include Content Marketing and Conversion Optimization.

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  • Vasco Sky Logotype

    Not yet reviewed

    $50,000+
    $50 - $99 / hr
    2 - 9
    Warszawa, Poland

    Services provided

    10% Web Development
    60% Custom Software Development
    30% HR Consulting

    Focus Areas

    10% JavaScript
    30% C#
    20% PHP +3
    20% Ruby
    10% Java
    10% Python

    Custom software development company Vasco Sky was launched in 2018. The firm offers Custom Software Development and HR Consulting.

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  • Aaryavart Technologies Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    2 - 9
    Ahmedabad, India

    Services provided

    10% Web Development
    30% Content Marketing
    10% Application Management & Support +5
    10% Custom Software Development
    10% E-Commerce Development
    10% IT Strategy Consulting
    10% Mobile App Development
    10% Other Application Development

    Focus Areas

    10% JavaScript
    10% AJAX
    10% ASP +7
    10% ASP.NET
    10% C#
    10% Java
    10% Other programming & scripting languages
    10% Redux
    10% SQL
    10% Visual Basic

    Content Marketing company Aaryavart Technologies was founded in 2014. The team provides Content Marketing and Custom Software Development and is headquartered in Ahmedabad, India.

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  • Team Lakida Logotype

    Team Lakida

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    10% Web Development
    30% Other Application Development
    20% Application Testing +4
    10% Application Management & Support
    10% Custom Software Development
    10% Enterprise App Modernization
    10% IT Managed Services

    Focus Areas

    10% JavaScript
    20% Java
    20% PHP +4
    20% SQL
    10% C++
    10% Ember.js
    10% Other programming & scripting languages

    Established in 1999, Team Lakida is an Other Application Development company. The team provides Other Application Development and Application Testing.

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  • i2ent Logotype

    i2ent

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    10% Web Development
    40% Custom Software Development
    20% BI & Big Data Consulting & SI +2
    20% IT Strategy Consulting
    10% AI Development

    Focus Areas

    10% JavaScript
    50% Java
    20% SQL +2
    10% AJAX
    10% XML

    I2ent, a custom software development company, was founded in 2019. The team specializes in Custom Software Development and BI & big data consulting & SI.

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  • Cododile Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9
    Wrocław, Poland

    Services provided

    10% Web Development
    35% Custom Software Development
    20% Enterprise App Modernization +3
    20% IT Staff Augmentation
    10% Mobile App Development
    5% IT Strategy Consulting

    Focus Areas

    10% JavaScript
    65% Java
    15% Kotlin +1
    10% SQL

    Launched in 2018, Cododile is a software development firm. The team specializes in Custom Software Development and Enterprise App Modernization and is headquartered in Wrocław, Poland.

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  • DevOps Cradle Logotype

    Not yet reviewed

    $10,000+
    < $25 / hr
    2 - 9
    Prishtinë, Kosovo

    Services provided

    10% Web Development
    10% Application Testing
    10% Blockchain +8
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% E-Commerce Development
    10% IT Managed Services
    10% IT Strategy Consulting
    10% Mobile App Development
    5% AR/VR Development
    5% IoT Development

    Focus Areas

    10% JavaScript
    10% Go
    10% Java +7
    10% Kotlin
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% Typescript

    DevOps Cradle is a software development company. The Prishtinë, Kosovo-based team focuses on Custom Software Development and Blockchain.

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  • Viffel Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    2 - 9
    Izmir, Türkiye

    Services provided

    10% Web Development
    15% Mobile App Development
    15% Transcription +9
    15% Translation
    10% Enterprise App Modernization
    5% AI Development
    5% Application Management & Support
    5% Application Testing
    5% BI & Big Data Consulting & SI
    5% Custom Software Development
    5% E-Commerce Development
    5% Other Application Development

    Focus Areas

    10% JavaScript
    15% C#
    10% ASP +7
    10% ASP.NET
    10% Java
    10% PHP
    10% SQL
    10% Typescript
    10% XML
    5% AJAX

    Viffel is an application development company. They are in Izmir, Türkiye and have small team of experts. Their services include Mobile App Development and Translation.

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  • Entraid Systems Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    2 - 9
    Port Harcourt, Nigeria

    Services provided

    10% Web Development
    20% Other Application Development
    10% Custom Software Development +7
    10% Enterprise App Modernization
    10% IT Staff Augmentation
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    5% CRM Consulting and SI
    5% ERP Consulting and SI

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C# +7
    10% Go
    10% Java
    10% Kotlin
    10% Objective C
    10% PHP
    10% Python
    10% Typescript

    Established in 2017, Entraid Systems is a small Other Application Development company. Their team provides Other Application Development and Custom Software Development.

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  • Cibernación Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9
    Medellín, Colombia

    Services provided

    10% Web Development
    10% Cloud Consulting & SI
    10% Custom Software Development +7
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% Graphic Design
    10% Logo
    10% Other Application Development
    10% Video Production
    10% Web Design

    Focus Areas

    10% JavaScript
    20% ASP.NET
    20% C# +4
    20% SQL
    10% AJAX
    10% PHP
    10% Visual Basic

    Cibernación is a web design company. The small Medellín, Colombia-based team focuses on Web Design and Graphic Design. The firm was founded in 2020.

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  • KOV Technologies Logotype

    KOV Technologies

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    10% AI Development
    10% Application Management & Support +10
    10% Application Testing
    10% Custom Software Development
    10% E-Commerce Development
    10% IT Staff Augmentation
    10% Mobile App Development
    10% Other Application Development
    3% HR Consulting
    3% HR Outsourcing
    2% Recruiting
    2% Staffing

    Focus Areas

    10% JavaScript
    10% C#
    10% C++ +7
    10% Java
    10% Kotlin
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% Swift

    IT staff augmentation company KOV Technologies is in Astana, Kazakhstan. Established in 2021, the team offers IT staff augmentation and Custom Software Development.

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  • AK Network Solutions Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9
    Delhi, India

    Services provided

    10% Web Development
    10% Blockchain
    10% Content Marketing +8
    10% E-Commerce Development
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design
    5% Custom Software Development
    5% Mobile & App Marketing

    Focus Areas

    10% JavaScript
    20% Python
    10% AJAX +6
    10% Go
    10% Other programming & scripting languages
    10% Redux
    10% SQL
    10% Typescript
    10% XML

    AK Network Solutions, a social media marketing company, is located in Delhi, India. Their services include Social Media Marketing and Content Marketing.

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  • Brand House Logotype

    Brand House

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    2 - 9

    Services provided

    10% Web Development
    10% Digital Strategy
    10% Marketing Strategy +11
    10% Pay Per Click
    10% Search Engine Optimization
    10% Web Design
    5% Affiliate Marketing
    5% Content Marketing
    5% Conversion Optimization
    5% E-Commerce Development
    5% Email Marketing
    5% Logo
    5% Social Media Marketing
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    90% PHP

    Headquartered in Pasadena, California, Brand House is a Marketing Strategy company. They provide Marketing Strategy and Digital Strategy.

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    $300 Design and develop 1 landing page $500 Design and develop 2 landing pages $800 Design and develop 3 landing pages

    Wordpress Landing Page Design & Development

    Need an incredible looking landing page for your Ads? Let us create a landing page that not only looks great but converts. We will design and develop within your current Wordpress site.
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  • Kishul Solutions Logotype

    Kishul Solutions

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    25% Mobile App Development
    15% IT Strategy Consulting +5
    10% Custom Software Development
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    10% JavaScript
    40% Kotlin
    40% PHP +1
    10% Java

    Kishul Solutions is a small mobile app development firm headquartered in Mumbai, India. The team offers Mobile App Development and IT strategy consulting.

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  • Epoka Logotype

    Not yet reviewed

    Undisclosed
    $50 - $99 / hr
    2 - 9
    Kraków, Poland

    Services provided

    10% Web Development
    70% Custom Software Development
    5% Application Testing +3
    5% Blockchain
    5% Enterprise App Modernization
    5% Other Application Development

    Focus Areas

    10% JavaScript
    60% Java
    10% Go +3
    10% SQL
    5% C#
    5% Kotlin

    Epoka is a software development company in Kraków, Poland. Their services include Custom Software Development and Web Development.

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  • Voclain Tech Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Agege, Nigeria

    Services provided

    10% Web Development
    15% Search Engine Optimization
    10% E-Commerce Development +9
    10% Low/No Code Development
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    5% Content Marketing
    5% Graphic Design
    5% Logo
    5% Pay Per Click
    5% Social Media Marketing

    Focus Areas

    10% JavaScript
    35% PHP
    25% SQL +2
    15% AJAX
    15% Python

    Based in Agege, Nigeria, Voclain Tech is a web design agency. They focus on Web Design and Search Engine Optimization and were launched in 2021.

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  • Web Solutions India Logotype

    Web Solutions India

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    10% Custom Software Development
    10% Graphic Design +11
    10% Mobile App Development
    10% Search Engine Optimization
    10% UX/UI Design
    5% Content Marketing
    5% E-Commerce Development
    5% Email Marketing
    5% Logo
    5% Pay Per Click
    5% Print Design
    5% Product Design
    5% Social Media Marketing

    Focus Areas

    10% JavaScript
    30% HTML5
    20% PHP +4
    15% SQL
    10% ASP.NET
    10% Java
    5% Python

    Web Solutions India is a SEO company. The agency is based in Delhi, India. Their team focuses on Search Engine Optimization and UX/UI Design.

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    $700 $1,200 $2,000

    Responsive Wordpress Website Design Packages

    Our Responsive Wordpress Website Design Packages offer everything you need to get a professional, mobile-friendly website up and running. Our team of experienced designers will work with you to create a unique, custom design that reflects your brand and meets the needs of your business.
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  • Aala Web Logotype

    Aala Web

    Not yet reviewed

    $1,000+
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    10% Content Marketing
    10% Content Writing Services +7
    10% E-Commerce Development
    10% Ecommerce Marketing
    10% Marketing Strategy
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    30% PHP
    20% SQL +4
    10% AJAX
    10% ASP
    10% C#
    10% C++

    In Lahore, Pakistan, Aala Web is a Marketing Strategy company. They specialize in Marketing Strategy and Social Media Marketing and were established in 2022.

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  • Bold Bear Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9
    Petaling Jaya, Malaysia

    Services provided

    10% Web Development
    15% Pay Per Click
    15% Search Engine Optimization +6
    15% Social Media Marketing
    15% Web Design
    10% Graphic Design
    10% UX/UI Design
    5% Ecommerce Marketing
    5% Mobile & App Marketing

    Focus Areas

    10% JavaScript
    25% PHP
    15% HTML5 +6
    10% Java
    10% Python
    10% Ruby
    10% Swift
    5% SQL
    5% Typescript

    Established in 2022, Bold Bear is a social media marketing agency. Their team offers Social Media Marketing and Search Engine Optimization.

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  • TYZO Logotype

    TYZO

    Not yet reviewed

    $10,000+
    $100 - $149 / hr
    2 - 9

    Services provided

    10% Web Development
    15% AI Agents
    15% Pay Per Click +9
    15% Social Media Marketing
    10% Custom Software Development
    5% AI Consulting
    5% AI Development
    5% Demand Generation Marketing
    5% Ecommerce Marketing
    5% Generative AI
    5% Mobile & App Marketing
    5% Video Marketing

    Focus Areas

    10% JavaScript
    30% Python
    30% Typescript +3
    10% HTML5
    10% Other programming & scripting languages
    10% SQL

    Small social media marketing agency TYZO, is based in Gdańsk, Poland. Their services include Social Media Marketing and Pay Per Click.

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  • Help Zila Logotype

    Help Zila

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    20% Digital Strategy
    20% Graphic Design +3
    20% Social Media Marketing
    20% UX/UI Design
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    50% HTML5
    40% Other programming & scripting languages

    Help Zila, a Digital Strategy company, was established in 2019. Located in jaipur, India, the team provides Digital Strategy and Social Media Marketing.

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  • InnovanSIS LLC Logotype

    InnovanSIS LLC

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    25% Custom Software Development
    20% E-Commerce Development +4
    15% CRM Consulting and SI
    15% ERP Consulting and SI
    10% Content Writing Services
    5% Digital Strategy

    Focus Areas

    10% JavaScript
    25% Python
    20% HTML5 +3
    20% Typescript
    15% SQL
    10% Redux

    InnovanSIS LLC is a custom software development firm. The team specializes in Custom Software Development and E-Commerce Development, and the agency is in Cape Coral, Florida.

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  • DevGenex Logotype

    Not yet reviewed

    $25,000+
    $25 - $49 / hr
    2 - 9
    Sandton, South Africa

    Services provided

    10% Web Development
    25% Custom Software Development
    20% BI & Big Data Consulting & SI +5
    15% Cloud Consulting & SI
    10% Enterprise App Modernization
    10% Mobile App Development
    5% ERP Consulting and SI
    5% Robotics Process Automation

    Focus Areas

    10% JavaScript
    15% ASP.NET
    15% C# +6
    15% SQL
    10% HTML5
    10% Java
    10% Kotlin
    10% Typescript
    5% Python

    DevGenex is a software development firm. In Sandton, South Africa, the team provides Custom Software Development and BI & big data consulting & SI.

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  • APLex Logotype

    Not yet reviewed

    $10,000+
    $50 - $99 / hr
    2 - 9
    Szczecin, Poland

    Services provided

    10% Web Development
    20% Cloud Consulting & SI
    20% Custom Software Development +5
    10% CRM Consulting and SI
    10% ERP Consulting and SI
    10% Enterprise App Modernization
    10% IoT Development
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    10% ASP
    10% ASP.NET +10
    10% C#
    10% HTML5
    10% Typescript
    10% XML
    5% C
    5% C++
    5% Java
    5% PHP
    5% Python
    5% SQL

    APLex is a small cloud consulting & SI company launched in 2021. Their services include cloud consulting & SI and Custom Software Development.

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  • Polaris Technologies Logotype

    Polaris Technologies

    Not yet reviewed

    $1,000+
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    15% Low/No Code Development
    15% Mobile App Development +6
    10% AI Development
    10% Blockchain
    10% Custom Software Development
    10% Generative AI
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    10% C#
    10% Java +10
    10% Python
    10% SQL
    8% Redux
    8% Swift
    7% Kotlin
    7% Objective C
    5% AJAX
    5% ASP.NET
    5% Ruby
    5% Typescript

    Launched in 2019, Polaris Technologies is a small web development company in Karachi, Pakistan. Their team focuses on Web Development and Web Design.

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  • Organisation19 Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9
    Bengaluru, India

    Services provided

    10% Web Development
    20% UX/UI Design
    15% IT Managed Services +5
    15% IT Strategy Consulting
    10% Application Testing
    10% Low/No Code Development
    10% Mobile App Development
    10% Other Application Development

    Focus Areas

    10% JavaScript
    15% HTML5
    15% Typescript +6
    10% AJAX
    10% Ember.js
    10% Java
    10% Other programming & scripting languages
    10% Redux
    10% SQL

    Organisation19 is an UX company. The Bengaluru, India-based agency was launched in 2019. Their team offers UX/UI Design and Web Development.

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  • Flamma Media Logotype

    Flamma Media

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    10% Web Development
    15% Content Marketing
    15% Graphic Design +4
    15% Pay Per Click
    15% Search Engine Optimization
    15% Social Media Marketing
    15% Web Design

    Focus Areas

    10% JavaScript
    90% HTML5

    Flamma Media is a social media marketing firm founded in 2022. Based in St. Petersburg, Florida and Breda, Netherlands, the team specializes in Social Media Marketing and Content Marketing.

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  • Huelab Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Sherpur, Bangladesh

    Services provided

    10% Web Development
    10% API Development
    10% Custom Software Development +7
    10% Digital Strategy
    10% E-Commerce Development
    10% Graphic Design
    10% Mobile App Development
    10% Other Digital Marketing
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

    10% JavaScript
    20% PHP
    15% SQL +5
    15% jquery
    10% HTML5
    10% Kotlin
    10% Python
    10% Typescript

    Huelab is a Digital Strategy company. They were launched in 2022 and specialize in Digital Strategy and Search Engine Optimization.

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  • Thevar Techie Logotype

    Thevar Techie

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    14% E-Commerce Development
    12% Low/No Code Development +12
    10% Custom Software Development
    10% IT Managed Services
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    3% Cybersecurity
    2% API Development
    2% AR/VR Development
    2% Application Management & Support
    2% IT Strategy Consulting
    2% IoT Development
    1% CRM Consulting and SI

    Focus Areas

    10% JavaScript
    20% Swift
    15% PHP +11
    12% Kotlin
    10% Redux
    5% HTML5
    5% Java
    5% SQL
    5% XML
    5% jquery
    3% Other programming & scripting languages
    2% Python
    2% Ruby
    1% Visual Basic

    Thevar Techie is a web development company headquartered in Ipoh, Malaysia. They specialize in Web Development and E-Commerce Development.

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  • Brainotek Logotype

    Brainotek

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    15% E-Commerce Development
    10% Custom Software Development +12
    10% Digital Strategy
    10% Email Marketing
    10% Low/No Code Development
    10% Mobile App Development
    10% Search Engine Optimization
    5% Graphic Design
    2% Ecommerce Marketing
    2% Logo
    2% Print Design
    2% Social Media Marketing
    1% UX/UI Design
    1% Web Design

    Focus Areas

    10% JavaScript
    30% PHP
    20% Typescript +4
    10% AJAX
    10% HTML5
    10% SQL
    10% jquery

    Brainotek, a mobile app development company, was founded in 2021. The small team focuses on Mobile App Development and E-Commerce Development.

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  • weblatis-inc Logotype

    weblatis-inc

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    10% Application Management & Support
    10% Business Consulting +7
    10% Content Marketing
    10% Digital Strategy
    10% E-Commerce Development
    10% Other Application Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% Ember.js +7
    10% Objective C
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% Typescript
    10% UnrealScript
    10% Visual Basic

    weblatis-inc specializes in Website Development and Web Programming, excelling in creating customer profiles and functional websites, notably with Python and FastAPI. Clients commend their technical expertise, timely project delivery, and effective communication, despite minor areas for improvement in communication timing and documentation clarity. Overall, weblatis-inc is recognized for its dedication to meeting high-quality standards and efficient project management.

    View Profile
  • SYSBEC Technologies Logotype

    SYSBEC Technologies

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    10% Web Development
    10% Application Management & Support
    10% Cloud Consulting & SI +7
    10% Custom Software Development
    10% E-Commerce Development
    10% IT Managed Services
    10% IT Staff Augmentation
    10% IT Strategy Consulting
    10% Marketing Strategy
    10% Search Engine Optimization

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C# +7
    10% HTML5
    10% Java
    10% PHP
    10% Redux
    10% SQL
    10% Visual Basic
    10% jquery

    SYSBEC Technologies, a Marketing Strategy company, is based in Montréal, Canada. They focus on Marketing Strategy and Search Engine Optimization.

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  • Logixweb Studio Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    2 - 9
    Ahmedabad, India

    Services provided

    10% Web Development
    20% Blockchain
    20% E-Commerce Development +3
    20% Mobile App Development
    20% UX/UI Design
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    50% PHP
    10% AJAX +5
    10% Kotlin
    5% HTML5
    5% SQL
    5% Swift
    5% jquery

    Logixweb Studio is a small UX agency. They offer UX/UI Design and Web Development and were launched in 2022.

    Read more
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  • jadbery Logotype

    jadbery

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    10% API Development
    10% Application Management & Support +9
    10% Computer Engineering
    10% Custom Software Development
    10% E-Commerce Development
    10% Mobile App Development
    10% Other Application Development
    5% AR/VR Development
    5% Application Testing
    5% Cybersecurity
    5% Wearable App Development

    Focus Areas

    10% JavaScript
    20% Kotlin
    20% Python +5
    15% SQL
    10% Java
    10% PHP
    10% jquery
    5% HTML5

    Jadbery is a Perintalmanna, India-based custom software development company. They provide Custom Software Development and Web Development.

    Read more
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  • Codeapi Logotype

    Codeapi

    Not yet reviewed

    $1,000+
    Undisclosed
    2 - 9

    Services provided

    10% Web Development
    15% Corporate Photography
    15% Pay Per Click +5
    15% Search Engine Optimization
    15% UX/UI Design
    10% Low/No Code Development
    10% Mobile App Development
    10% Web Design

    Focus Areas

    10% JavaScript
    30% Kotlin
    30% Python +6
    5% C
    5% C#
    5% C++
    5% Objective C
    5% PHP
    5% SQL

    Codeapi is a SEO services firm in Jaipur, India. Founded in 2023, the team offers Search Engine Optimization and Pay Per Click.

    Read more
    View Profile
  • DigitalFiverr Technologies Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Titwala, India

    Services provided

    10% Web Development
    10% E-Commerce Development
    10% Graphic Design +7
    10% Logo
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    20% PHP
    15% HTML5 +6
    10% Java
    10% Python
    10% SQL
    10% XML
    10% jquery
    5% Kotlin

    DigitalFiverr Technologies is a social media marketing company. Located in Titwala, India and Noida, India, the firm specializes in Social Media Marketing and Search Engine Optimization.

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We evaluate service providers using a structured methodology that combines:

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This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

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Ability to deliver
Focus
Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 ImageX
2 xfive
3 GeekyAnts
4 Flowout
5 Brainhub
6 The Software House
7 PowerGate Software
8 HTMLPanda
9 FocusReactive
10 Arcanys
11 WPWeb Infotech
12 Softonix
13 PopArt Studio
14 Lizard Global
15 Experion Technologies

List of the Top 15 JavaScript Development Companies

  1. ImageX Logotype

    ImageX

    $75,000+
    $100 - $149 / hr
    50 - 249
    Vancouver, Canada

    Ability to deliver

    38.7/40.0
    20/20 Reviews
    10/10 Clients & Experience
    8.7/10 Market Presence

    Service focus

    90% Web Development
    50% JavaScript
    10% Other
    View Profile Visit Website
  2. xfive Logotype

    xfive

    $25,000+
    $50 - $99 / hr
    50 - 249
    Kraków, Poland

    Ability to deliver

    35.9/40.0
    19/20 Reviews
    10/10 Clients & Experience
    6.9/10 Market Presence

    Service focus

    60% Web Development
    50% JavaScript
    40% Other
    View Profile Visit Website
  3. GeekyAnts Logotype

    GeekyAnts

    $10,000+
    $25 - $49 / hr
    250 - 999
    Bengaluru, India

    Ability to deliver

    37.2/40.0
    20/20 Reviews
    10/10 Clients & Experience
    7.2/10 Market Presence

    Service focus

    20% Web Development
    40% JavaScript
    80% Other
    View Profile Visit Website
  4. Flowout Logotype

    Flowout

    $5,000+
    $50 - $99 / hr
    50 - 249
    Maribor, Slovenia

    Ability to deliver

    35.1/40.0
    20/20 Reviews
    10/10 Clients & Experience
    5.1/10 Market Presence

    Service focus

    40% Web Development
    100% JavaScript
    60% Other
    View Profile Visit Website
  5. Brainhub Logotype

    Brainhub

    $50,000+
    $50 - $99 / hr
    50 - 249
    Gliwice, Poland

    Ability to deliver

    34.1/40.0
    18.4/20 Reviews
    10/10 Clients & Experience
    5.7/10 Market Presence

    Service focus

    45% Web Development
    75% JavaScript
    55% Other
    View Profile Visit Website
  6. The Software House Logotype

    The Software House

    $25,000+
    $50 - $99 / hr
    50 - 249
    Gliwice, Poland

    Ability to deliver

    34.5/40.0
    18.8/20 Reviews
    10/10 Clients & Experience
    5.7/10 Market Presence

    Service focus

    40% Web Development
    60% JavaScript
    60% Other
    View Profile Visit Website
  7. PowerGate Software Logotype

    PowerGate Software

    $10,000+
    < $25 / hr
    250 - 999
    Hanoi, Vietnam

    Ability to deliver

    35.9/40.0
    18.8/20 Reviews
    10/10 Clients & Experience
    7.1/10 Market Presence

    Service focus

    30% Web Development
    21% JavaScript
    70% Other
    View Profile Visit Website
  8. HTMLPanda Logotype

    HTMLPanda

    $1,000+
    < $25 / hr
    250 - 999
    Walpole, MA

    Ability to deliver

    32.8/40.0
    16.2/20 Reviews
    10/10 Clients & Experience
    6.6/10 Market Presence

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  9. FocusReactive Logotype

    FocusReactive

    $10,000+
    $50 - $99 / hr
    10 - 49
    London, England

    Ability to deliver

    34.8/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    6.2/10 Market Presence

    Service focus

    50% Web Development
    90% JavaScript
    50% Other
    View Profile Visit Website
  10. Arcanys Logotype

    Arcanys

    $100,000+
    $25 - $49 / hr
    250 - 999
    Cebu City, Philippines

    Ability to deliver

    35.6/40.0
    20/20 Reviews
    10/10 Clients & Experience
    5.6/10 Market Presence

    Service focus

    30% Web Development
    20% JavaScript
    70% Other
    View Profile Visit Website
  11. WPWeb Infotech Logotype

    WPWeb Infotech

    $25,000+
    < $25 / hr
    250 - 999
    Ahmedabad, India

    Ability to deliver

    37/40.0
    19.6/20 Reviews
    10/10 Clients & Experience
    7.4/10 Market Presence

    Service focus

    45% Web Development
    10% JavaScript
    55% Other
    View Profile Visit Website
  12. Softonix Logotype

    Softonix

    $5,000+
    $25 - $49 / hr
    50 - 249
    Warszawa, Poland

    Ability to deliver

    32.3/40.0
    17.2/20 Reviews
    10/10 Clients & Experience
    5.1/10 Market Presence

    Service focus

    70% Web Development
    50% JavaScript
    30% Other
    View Profile Visit Website
  13. PopArt Studio Logotype

    PopArt Studio

    $5,000+
    $50 - $99 / hr
    50 - 249
    Chicago, IL

    Ability to deliver

    35.6/40.0
    19.6/20 Reviews
    10/10 Clients & Experience
    6/10 Market Presence

    Service focus

    35% Web Development
    40% JavaScript
    65% Other
    View Profile Visit Website
  14. Lizard Global Logotype

    Lizard Global

    $10,000+
    $50 - $99 / hr
    50 - 249
    Amsterdam, Netherlands

    Ability to deliver

    34.9/40.0
    19.8/20 Reviews
    10/10 Clients & Experience
    5.1/10 Market Presence

    Service focus

    30% Web Development
    70% JavaScript
    70% Other
    View Profile Visit Website
  15. Experion Technologies Logotype

    Experion Technologies

    $10,000+
    $25 - $49 / hr
    1,000 - 9,999
    Plano, TX

    Ability to deliver

    33.6/40.0
    16.8/20 Reviews
    10/10 Clients & Experience
    6.8/10 Market Presence

    Service focus

    20% Web Development
    25% JavaScript
    80% Other
    View Profile Visit Website
  16. INOXOFT Logotype

    INOXOFT

    $25,000+
    $25 - $49 / hr
    50 - 249
    Newark, DE

    Ability to deliver

    35.5/40.0
    18.8/20 Reviews
    10/10 Clients & Experience
    6.7/10 Market Presence

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  17. Cleveroad Logotype

    Cleveroad

    $10,000+
    $25 - $49 / hr
    250 - 999
    New York, NY

    Ability to deliver

    36.2/40.0
    20/20 Reviews
    10/10 Clients & Experience
    6.2/10 Market Presence

    Service focus

    30% Web Development
    15% JavaScript
    70% Other
    View Profile Visit Website
  18. Povio Logotype

    Povio

    $10,000+
    $50 - $99 / hr
    50 - 249
    San Francisco, CA

    Ability to deliver

    32.6/40.0
    18.8/20 Reviews
    8.3/10 Clients & Experience
    5.5/10 Market Presence

    Service focus

    55% Web Development
    45% JavaScript
    45% Other
    View Profile Visit Website
  19. Sigma Software Group Logotype

    Sigma Software Group

    $50,000+
    $50 - $99 / hr
    1,000 - 9,999
    L'viv, Ukraine

    Ability to deliver

    36.3/40.0
    17.6/20 Reviews
    10/10 Clients & Experience
    8.8/10 Market Presence

    Service focus

    15% Web Development
    18% JavaScript
    85% Other
    View Profile Visit Website
  20. Xmartlabs Logotype

    Xmartlabs

    $10,000+
    $50 - $99 / hr
    50 - 249
    Montevideo, Uruguay

    Ability to deliver

    33.8/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    50% Web Development
    35% JavaScript
    50% Other
    View Profile Visit Website
  21. Incora Logotype

    Incora

    $25,000+
    $25 - $49 / hr
    50 - 249
    L'viv, Ukraine

    Ability to deliver

    33.1/40.0
    17.8/20 Reviews
    10/10 Clients & Experience
    5.3/10 Market Presence

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  23. Adchitects Logotype

    Adchitects

    $25,000+
    $50 - $99 / hr
    10 - 49
    Poznań, Poland

    Ability to deliver

    33.8/40.0
    17/20 Reviews
    10/10 Clients & Experience
    6.8/10 Market Presence

    Service focus

    50% Web Development
    60% JavaScript
    50% Other
    View Profile Visit Website
  24. Techuz InfoWeb Pvt. Ltd. Logotype

    Techuz InfoWeb Pvt. Ltd.

    $5,000+
    < $25 / hr
    50 - 249
    Ahmedabad, India

    Ability to deliver

    31.9/40.0
    16.4/20 Reviews
    10/10 Clients & Experience
    5.5/10 Market Presence

    Service focus

    60% Web Development
    45% JavaScript
    40% Other
    View Profile Visit Website
  25. SpdLoad Logotype

    SpdLoad

    $50,000+
    $25 - $49 / hr
    50 - 249
    Kharkiv, Ukraine

    Ability to deliver

    31.9/40.0
    16.2/20 Reviews
    10/10 Clients & Experience
    5.7/10 Market Presence

    Service focus

    45% Web Development
    50% JavaScript
    55% Other
    View Profile Visit Website
  26. XWP Logotype

    XWP

    $50,000+
    $150 - $199 / hr
    50 - 249
    New York, NY

    Ability to deliver

    31.9/40.0
    15.8/20 Reviews
    10/10 Clients & Experience
    6.1/10 Market Presence

    Service focus

    60% Web Development
    45% JavaScript
    40% Other
    View Profile Visit Website
  27. Toptal Logotype

    Toptal

    $50,000+
    $100 - $149 / hr
    1,000 - 9,999
    San Francisco, CA

    Ability to deliver

    33.9/40.0
    17.2/20 Reviews
    9.9/10 Clients & Experience
    6.8/10 Market Presence

    Service focus

    15% Web Development
    25% JavaScript
    85% Other
    View Profile Visit Website
  28. unicrew Logotype

    unicrew

    $10,000+
    $25 - $49 / hr
    50 - 249
    Kraków, Poland

    Ability to deliver

    33.8/40.0
    18.8/20 Reviews
    10/10 Clients & Experience
    5/10 Market Presence

    Service focus

    30% Web Development
    50% JavaScript
    70% Other
    View Profile Visit Website
  29. Konstant Infosolutions Logotype

    Konstant Infosolutions

    $5,000+
    $25 - $49 / hr
    250 - 999
    Jaipur, India

    Ability to deliver

    37.4/40.0
    20/20 Reviews
    10/10 Clients & Experience
    7.4/10 Market Presence

    Service focus

    10% Web Development
    25% JavaScript
    90% Other
    View Profile Visit Website
  30. Vardot Logotype

    Vardot

    $25,000+
    $100 - $149 / hr
    50 - 249
    Santa Clara, CA

    Ability to deliver

    35.1/40.0
    17.8/20 Reviews
    10/10 Clients & Experience
    7.3/10 Market Presence

    Service focus

    60% Web Development
    20% JavaScript
    40% Other
    View Profile Visit Website

Top JavaScript Development Agencies

A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.

Most agencies bundle multiple offerings so clients can access full product life-cycle support:

  • Discovery workshops & technical consulting
  • UI/UX design and prototyping
  • Front-end SPA or PWA development
  • Server-side development with Node.js or Deno
  • API design, GraphQL, and microservices architecture
  • QA automation & performance testing
  • DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
  • Post-launch maintenance and feature sprints

Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.

Clutch data shows project budgets range widely:

  • MVP or small web app - $15,000–$50,000
  • Mid-size product build - $50,000–$200,000
  • Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.

  • Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
  • Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
  • Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
  • Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
  • Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.

Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.

  • Guaranteed timelines without discovery
  • No access to source code repositories during the engagement
  • Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
  • Low developer retention or high turnover
  • Vague pricing models or hidden fees

If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution

  • Which JavaScript frameworks do you specialize in, and why?
  • Can you walk me through a recent project with similar complexity?
  • How do you ensure code quality—linting, peer reviews, automated tests?
  • What is your approach to scalability and performance optimization?
  • How will we communicate and track progress (tools, meeting cadence)?
  • Who owns the intellectual property and source code upon project completion?

Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.

A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.

Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.

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