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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 18, 2026
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22,371 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

  • Sharviom Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    10 - 49
    Pune, India

    Services provided

    10% Web Development
    40% Customer Service Outsourcing
    15% Call Center Services +6
    10% Recruitment Process Outsourcing
    5% Back Office Outsourcing
    5% Custom Software Development
    5% IT Managed Services
    5% Procurement Support
    5% Sales Outsourcing

    Focus Areas

    10% JavaScript
    20% Python
    10% C +6
    10% C#
    10% C++
    10% HTML5
    10% Java
    10% PHP
    10% SQL

    Sharviom, a Customer Service Outsourcing company, was established in 2026. The team offers Customer Service Outsourcing and Call Center Services and is based in Pune, India and Nagpur, India.

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  • StackX Logotype

    StackX

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% Custom Software Development
    25% IT Staff Augmentation +4
    20% AI Development
    5% API Development
    5% Other Application Development
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    40% Ruby
    10% ASP.NET +4
    10% C#
    10% Go
    10% Other programming & scripting languages
    10% Python

    StackX, a software development company, is in Singapore, Singapore and Thành phố Hồ Chí Minh, Vietnam. Their services include Custom Software Development and IT staff augmentation.

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  • Syed Ahmer Shah Logotype

    Syed Ahmer Shah

    Not yet reviewed

    $1,000+
    < $25 / hr
    10 - 49

    Services provided

    10% Web Development
    10% API Development
    10% Custom Software Development +12
    10% E-Commerce Development
    10% Mobile App Development
    5% AI Agents
    5% AI Development
    5% Branding
    5% Content Writing Services
    5% Generative AI
    5% Graphic Design
    5% IT Strategy Consulting
    5% Low/No Code Development
    5% UX/UI Design
    5% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% ASP.NET +9
    10% C#
    10% Java
    10% PHP
    10% SQL
    10% Typescript
    5% HTML5
    5% Other programming & scripting languages
    5% XML
    5% jquery

    Launched in 2026, Syed Ahmer Shah is a small API Development company. Their services include API Development and Custom Software Development.

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  • bias Interactive GmbH Logotype

    Not yet reviewed

    $25,000+
    $100 - $149 / hr
    2 - 9
    Langenfeld (Rheinland), Germany

    Services provided

    10% Web Development
    20% IoT Development
    20% Mobile App Development +4
    20% UX/UI Design
    10% AR/VR Development
    10% Cloud Consulting & SI
    10% ERP Consulting and SI

    Focus Areas

    13% JavaScript
    22% Kotlin
    13% Elixir +4
    13% Go
    13% Python
    13% Ruby
    13% Swift

    UX company bias Interactive GmbH was founded in 2018. The firm focuses on UX/UI Design and Mobile App Development, and is small.

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  • Jaspreet Singh Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    Freelancer
    Bassi Muda, India

    Services provided

    10% Web Development
    15% IT Strategy Consulting
    15% Mobile App Development +6
    10% API Development
    10% AR/VR Development
    10% Custom Software Development
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% Microservices Architecture Services

    Focus Areas

    12% JavaScript
    18% Other programming & scripting languages
    12% HTML5 +6
    12% Python
    12% Redux
    12% Typescript
    10% Kotlin
    6% Go
    6% jquery

    Jaspreet Singh is an IT strategy consulting company. Located in Bassi Muda, India, their small team specializes in IT strategy consulting and Mobile App Development. The company was founded in 2017.

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  • Aimb System LLP Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9
    Ahmedabad, India

    Services provided

    10% Web Development
    30% IT Staff Augmentation
    10% AR/VR Development +12
    10% DevOps Managed Services
    10% Mobile App Development
    5% E-Commerce Development
    5% Microservices Architecture Services
    5% UX/UI Design
    3% Custom Software Development
    2% CRM Consulting and SI
    2% Cloud Consulting & SI
    2% Enterprise App Modernization
    2% IT Managed Services
    2% Product Design
    2% Web Design

    Focus Areas

    12% JavaScript
    24% ASP.NET
    12% Java +6
    12% Python
    12% SQL
    12% Visual Basic
    6% Objective C
    6% Swift
    4% Kotlin

    Aimb System LLP, an IT staff augmentation company, is based in Ahmedabad, India. Their services include IT staff augmentation and Web Development.

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  • TRIO SOLUTIONS LLC Logotype

    TRIO SOLUTIONS LLC

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% Pay Per Click
    15% Search Engine Optimization +8
    10% Customer Service Outsourcing
    10% Mobile & App Marketing
    10% Mobile App Development
    10% Social Media Marketing
    5% Custom Software Development
    5% Ecommerce Marketing
    5% Video Marketing
    5% Web Design

    Focus Areas

    11% JavaScript
    12% SQL
    11% C++ +6
    11% HTML5
    11% Java
    11% Objective C
    11% PHP
    11% Python
    11% Visual Basic

    TRIO SOLUTIONS LLC is a SEO services firm. Launched in 2019, the team focuses on Search Engine Optimization and Pay Per Click.

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  • CodeX2D Logotype

    CodeX2D

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Architectural Design
    20% Graphic Design +3
    20% Mobile App Development
    20% Web Design
    10% AR/VR Development

    Focus Areas

    11% JavaScript
    11% C#
    11% HTML5 +8
    11% Other programming & scripting languages
    11% Python
    11% SQL
    11% jquery
    6% Redux
    6% Typescript
    6% Visual Basic
    5% AJAX

    CodeX2D is a web design company headquartered in Indore, India. Their services include Web Design and Architectural Design.

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  • Hasibullah Rahmani Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Ankara, Türkiye

    Services provided

    20% Web Development
    20% Mobile App Development
    20% Web Design +4
    10% Ecommerce Marketing
    10% Graphic Design
    10% IT Strategy Consulting
    10% Search Engine Optimization

    Focus Areas

    10% JavaScript
    10% C#
    10% C++ +7
    10% HTML5
    10% Java
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% XML

    Hasibullah Rahmani, a small web design company, is located in Ankara, Türkiye. The team focuses on Web Design and Web Development.

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  • WPLancing Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    Freelancer
    Faisalabad, Pakistan

    Services provided

    20% Web Development
    15% E-Commerce Development
    15% Search Engine Optimization +5
    10% Cybersecurity
    10% IT Managed Services
    10% IT Staff Augmentation
    10% Other IT Consulting and SI
    10% Web Design

    Focus Areas

    10% JavaScript
    40% PHP
    25% AJAX +1
    25% Redux

    WPLancing is a website development company. Headquartered in Faisalabad, Pakistan, their small team specializes in Web Development and Search Engine Optimization. The firm was founded in 2015.

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  • SalemWise Solutions Logotype

    SalemWise Solutions

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer

    Services provided

    20% Web Development
    20% BI & Big Data Consulting & SI
    20% Blockchain +2
    20% Cloud Consulting & SI
    20% Mobile App Development

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C +9
    10% C++
    10% Java
    10% PHP
    10% Python
    10% XML
    5% Kotlin
    5% Objective C
    5% SQL
    5% Swift

    SalemWise Solutions is a business intelligence company. Their small team is headquartered in Plainsboro, New Jersey. Their services include BI & big data consulting & SI and cloud consulting & SI.

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  • Big Salami Ltd. Logotype

    Big Salami Ltd.

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    Freelancer

    Services provided

    10% Web Development
    15% UX/UI Design
    10% Custom Software Development +8
    10% E-Commerce Development
    10% Graphic Design
    10% Logo
    10% Print Design
    10% Web Design
    5% IT Managed Services
    5% IT Strategy Consulting
    5% Video Production

    Focus Areas

    20% JavaScript
    20% PHP
    10% AJAX +9
    10% SQL
    5% ASP
    5% C
    5% C#
    5% HTML5
    5% Objective C
    5% Typescript
    5% XML
    5% jquery

    Big Salami Ltd. Is an UX design agency located in Ashford, England. Their services include UX/UI Design and Web Design.

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  • Devbob Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Content Marketing
    10% Digital Strategy +7
    10% E-Commerce Development
    10% Email Marketing
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    20% JavaScript
    15% PHP
    15% SQL +5
    15% jquery
    10% AJAX
    10% HTML5
    10% Typescript
    5% XML

    Devbob is a Digital Strategy company headquartered in Brossard, Canada. They provide Digital Strategy and Social Media Marketing and were launched in 2021.

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  • WebEllio Logotype

    WebEllio

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% E-Commerce Development
    10% Ecommerce Marketing +4
    10% Email Marketing
    10% Logo
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    20% JavaScript
    35% PHP
    25% jquery +2
    10% HTML5
    10% SQL

    Located in Rajshahi, Bangladesh, WebEllio is a small e-commerce development firm. Their services include E-Commerce Development and Web Development.

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  • Access Communications Logotype

    Access Communications

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer

    Services provided

    10% Web Development
    10% Content Marketing
    10% Content Writing Services +8
    10% E-Commerce Development
    10% Graphic Design
    10% IT Managed Services
    10% Pay Per Click
    10% Social Media Marketing
    10% Web Design
    5% Email Marketing
    5% Search Engine Optimization

    Focus Areas

    20% JavaScript
    20% HTML5
    20% PHP +3
    20% jquery
    10% AJAX
    10% ASP.NET

    Access Communications is a social media marketing firm. Located in Stamford, Connecticut, the company was established in 2003. Their team offers Social Media Marketing and Content Marketing.

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  • Right Stuff Web Development LLC Logotype

    Right Stuff Web Development LLC

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% Search Engine Optimization +3
    20% Web Design
    10% Pay Per Click
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    15% PHP
    15% Python +6
    10% C#
    10% HTML5
    10% Java
    10% Ruby
    10% SQL
    10% jquery

    Small SEO company Right Stuff Web Development LLC, is located in Front Royal, Virginia. Their services include Search Engine Optimization and Web Design.

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  • RactStudio Logotype

    RactStudio

    Not yet reviewed

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

    Services provided

    20% Web Development
    10% AI Consulting
    10% AI Development +6
    10% API Development
    10% Custom Software Development
    10% E-Commerce Development
    10% Generative AI
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    20% PHP
    15% HTML5 +6
    15% SQL
    15% jquery
    10% AJAX
    5% Ember.js
    5% Python
    5% XML

    Established in 2017, RactStudio is a small web development company. Their services include Web Development and Web Design.

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  • Ploonu LLC Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Shelbyville, IN

    Services provided

    10% Web Development
    10% Branding
    10% Content Marketing +7
    10% E-Commerce Development
    10% Graphic Design
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Video Marketing
    10% Web Design

    Focus Areas

    20% JavaScript
    20% PHP
    20% Python +2
    20% SQL
    20% Typescript

    Ploonu LLC is a Shelbyville, Indiana-based branding company. Their services include Branding and Social Media Marketing.

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  • Algothramic'X Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    Freelancer
    Karachi, Pakistan

    Services provided

    20% Web Development
    20% AI Development
    20% Custom Software Development +2
    20% E-Commerce Development
    20% Mobile App Development

    Focus Areas

    10% JavaScript
    15% Rust
    10% AJAX +7
    10% Kotlin
    10% Redux
    10% SQL
    10% Swift
    10% Typescript
    10% jquery
    5% PHP

    Algothramic'X is a software development company. They focus on Custom Software Development and Web Development and were launched in 2023.

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  • Data Consult Ltd. Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% AI Consulting
    20% AI Development +2
    20% Custom Software Development
    20% Mobile App Development

    Focus Areas

    10% JavaScript
    20% Python
    15% C# +4
    15% Java
    15% PHP
    15% SQL
    10% HTML5

    Data Consult Ltd., a custom software development firm, was founded in 2024. The team provides Custom Software Development and Web Development and is located in Blagoevgrad, Bulgaria.

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  • RR Digital Phoenix Logotype

    RR Digital Phoenix

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    Freelancer

    Services provided

    20% Web Development
    30% Pay Per Click
    30% Search Engine Optimization +1
    20% Web Design

    Focus Areas

    10% JavaScript
    40% PHP
    20% SQL +3
    10% AJAX
    10% HTML5
    10% jquery

    SEO agency RR Digital Phoenix provides Search Engine Optimization and Pay Per Click. They were launched in 2017.

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  • McKay Media Group LLC Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Clearwater, FL

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Graphic Design +2
    20% Video Production
    20% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% ASP.NET +7
    10% C#
    10% HTML5
    10% PHP
    10% SQL
    10% Typescript
    10% XML
    10% jquery

    Web design company McKay Media Group LLC was established in 2012. The company provides Web Design and Graphic Design.

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  • SaintLex tech solutions Logotype

    SaintLex tech solutions

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% CRM Consulting and SI
    10% ERP Consulting and SI +11
    10% IT Managed Services
    10% IT Strategy Consulting
    10% Other IT Consulting and SI
    5% Advertising
    5% Branding
    5% Business Consulting
    5% Digital Strategy
    5% Search Engine Optimization
    5% Social Media Marketing
    5% UX/UI Design
    5% Web Design

    Focus Areas

    20% JavaScript
    20% HTML5
    20% Java +2
    20% Python
    20% Typescript

    SaintLex tech solutions is a Lagos, Nigeria-based IT strategy consulting company. They offer IT strategy consulting and CRM consulting and SI and were established in 2023.

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  • CKreative Digital Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    Freelancer
    Stow, OH

    Services provided

    20% Web Development
    50% Web Design
    15% Branding +2
    10% Digital Strategy
    5% Search Engine Optimization

    Focus Areas

    10% JavaScript
    60% HTML5
    20% PHP +1
    10% jquery

    CKreative Digital is a web design company based in Stow, Ohio. Founded in 2021, the team provides Web Design and Web Development.

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  • Logiclab Innovations Logotype

    Logiclab Innovations

    Not yet reviewed

    Undisclosed
    < $25 / hr
    Freelancer

    Services provided

    20% Web Development
    30% Custom Software Development
    20% Social Media Marketing +2
    20% Web Design
    10% Search Engine Optimization

    Focus Areas

    10% JavaScript
    25% Other programming & scripting languages
    25% PHP +4
    25% SQL
    10% Python
    4% HTML5
    1% jquery

    Logiclab Innovations, a small software development firm, is located in colombo, Sri Lanka. Their services include Custom Software Development and Social Media Marketing.

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  • krAI Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    Freelancer
    Khmel'nyts'kyi, Ukraine

    Services provided

    20% Web Development
    20% Custom Software Development
    20% E-Commerce Development +2
    20% Mobile App Development
    20% Web Design

    Focus Areas

    10% JavaScript
    15% AJAX
    15% Kotlin +4
    15% PHP
    15% SQL
    15% Swift
    15% Typescript

    KrAI is a web design agency. Founded in 2025, the team specializes in Web Design and Custom Software Development.

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  • SISL.PL Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Poznań, Poland

    Services provided

    10% Web Development
    25% Web Design
    20% Search Engine Optimization +5
    20% UX/UI Design
    10% E-Commerce Development
    5% Content Marketing
    5% Digital Strategy
    5% Performance Marketing

    Focus Areas

    20% JavaScript
    20% HTML5
    20% Python +2
    20% SQL
    20% Typescript

    Launched in 2021, SISL.PL, a small web design company, is headquartered in Poznań, Poland. Their services include Web Design and Search Engine Optimization.

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  • LINJERUM agency Logotype

    LINJERUM agency

    Not yet reviewed

    Undisclosed
    $100 - $149 / hr
    Freelancer

    Services provided

    15% Web Development
    15% Custom Software Development
    10% AI Consulting +6
    10% AI Development
    10% API Development
    10% Branding
    10% Digital Engineering
    10% E-Commerce Development
    10% IT Strategy Consulting

    Focus Areas

    15% JavaScript
    40% Elixir
    15% Other programming & scripting languages +2
    15% Ruby
    15% SQL

    Headquartered in Aarhus, Denmark, LINJERUM agency is a website development firm. The team provides Web Development and Custom Software Development.

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  • CorGon CyberSolutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Benacazón, Spain

    Services provided

    20% Web Development
    20% Custom Software Development
    15% Cybersecurity +3
    15% Mobile App Development
    15% Wearable App Development
    15% Web Design

    Focus Areas

    10% JavaScript
    20% Kotlin
    20% Python +4
    20% SQL
    10% Java
    10% Objective C
    10% PHP

    CorGon CyberSolutions, a small custom software development company, is headquartered in Benacazón, Spain. The team focuses on Custom Software Development and Web Development.

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  • Vantage Market & Digital Solutions LLC. Logotype

    Vantage Market & Digital Solutions LLC.

    5.0 1 review
    $5,000+
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    10% AI Development
    10% CRM Consulting and SI +7
    10% Custom Software Development
    10% Digital Strategy
    10% Email Marketing
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    20% Java
    15% HTML5 +5
    15% jquery
    10% AJAX
    10% C#
    10% C++
    10% PHP

    Vantage Market & Digital Solutions LLC. offers services in CRM system implementation, digital marketing strategy, and performance optimization. The reviews highlight their expertise in enhancing customer communication and engagement, resulting in a 35% increase in bookings. Despite initial miscommunications, the company demonstrated strong project management and responsiveness, with the CEO actively involved, ensuring successful alignment and delivery of project goals.

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  • The Imagination Factory Logotype

    Not yet reviewed

    $5,000+
    $150 - $199 / hr
    2 - 9
    Grand Rapids, MI

    Services provided

    10% Web Development
    20% E-Commerce Development
    20% Marketing Strategy +5
    10% Branding
    10% Content Marketing
    10% Graphic Design
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

    10% JavaScript
    25% PHP
    20% AJAX +4
    20% SQL
    10% HTML5
    10% jquery
    5% Perl

    Marketing Strategy company The Imagination Factory was founded in 1985. The firm focuses on Marketing Strategy and E-Commerce Development.

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  • West Coast Online Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Perth, Australia

    Services provided

    10% Web Development
    10% Branding
    10% Conversion Optimization +7
    10% Digital Strategy
    10% Email Marketing
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C# +7
    10% C++
    10% Delphi
    10% Ember.js
    10% Java
    10% PHP
    10% SQL
    10% Swift

    West Coast Online is a small Perth, Australia-based branding firm. Their services include Branding and Digital Strategy.

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  • Two Pines Creative Logotype

    Not yet reviewed

    Undisclosed
    $100 - $149 / hr
    2 - 9
    Conway, NH

    Services provided

    10% Web Development
    40% Web Design
    25% E-Commerce Development +1
    25% Search Engine Optimization

    Focus Areas

    10% JavaScript
    75% PHP
    15% HTML5

    In Conway, New Hampshire, Two Pines Creative is a small web design company. The team specializes in Web Design and Search Engine Optimization.

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  • Saka Digital Private Limited Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Branding
    10% Digital Strategy +7
    10% Graphic Design
    10% Market Research
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Video Production
    10% Web Design

    Focus Areas

    10% JavaScript
    20% jquery
    10% C++ +6
    10% HTML5
    10% Java
    10% PHP
    10% Python
    10% SQL
    10% XML

    Saka Digital Private Limited is a branding firm. The Hyderabad, India-based team specializes in Branding and Market Research.

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  • New vibrations Ltd. Logotype

    New vibrations Ltd.

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% API Development
    10% Application Management & Support +7
    10% Application Testing
    10% CRM Consulting and SI
    10% Custom Software Development
    10% E-Commerce Development
    10% Mobile App Development
    10% Other Application Development
    10% Search Engine Optimization

    Focus Areas

    10% JavaScript
    45% PHP
    10% HTML5 +4
    10% SQL
    10% XML
    10% jquery
    5% AJAX

    New vibrations Ltd., a SEO company, specializes in Search Engine Optimization and CRM consulting and SI. The company is located in Split, Croatia.

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  • Massive Dynamics USA Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    New York, NY

    Services provided

    10% Web Development
    10% Custom Software Development
    10% E-Commerce Development +7
    10% Email Marketing
    10% Logo
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    20% ASP.NET
    20% Kotlin +3
    20% Objective C
    20% Swift
    10% HTML5

    Massive Dynamics USA is a social media marketing agency. The firm is headquartered in New York, New York. Their team specializes in Social Media Marketing and Email Marketing.

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  • DPA Software Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Waukesha, WI

    Services provided

    10% Web Development
    20% Custom Software Development
    10% AI Agents +6
    10% AI Development
    10% AR/VR Development
    10% Digital Strategy
    10% E-Commerce Development
    10% Mobile App Development
    10% UX/UI Design

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C++ +11
    10% HTML5
    10% Java
    10% jquery
    5% AJAX
    5% ASP
    5% C
    5% Objective C
    5% PHP
    5% SQL
    5% Swift
    5% Visual Basic

    Headquartered in Waukesha, Wisconsin, DPA Software is a small software development firm. The team provides Custom Software Development and Digital Strategy.

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  • Novemba Logotype

    Novemba

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    10% Cloud Consulting & SI
    10% Custom Software Development +8
    10% Digital Strategy
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% IT Managed Services
    10% Mobile App Development
    10% Search Engine Optimization
    5% UX/UI Design
    5% Web Design

    Focus Areas

    10% JavaScript
    15% Typescript
    10% PHP +13
    5% AJAX
    5% ASP.NET
    5% C#
    5% Elixir
    5% Ember.js
    5% HTML5
    5% Kotlin
    5% Other programming & scripting languages
    5% Python
    5% Redux
    5% SQL
    5% Swift
    5% jquery

    Digital Strategy company Novemba provides Digital Strategy and Search Engine Optimization. They were founded in 2023.

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  • Broadlink Data Services, LLC. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    New York, NY

    Services provided

    10% Web Development
    10% API Development
    10% Custom Software Development +7
    10% Cybersecurity
    10% E-Commerce Development
    10% Graphic Design
    10% Mobile App Development
    10% Product Design
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    10% ASP
    10% C++ +7
    10% HTML5
    10% Java
    10% PHP
    10% Python
    10% SQL
    10% Swift
    10% jquery

    Established in 2016, Broadlink Data Services, LLC. Is a small New York, New York-based web design agency. Their services include Web Design and UX/UI Design.

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  • High Solutions Web Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    București, Romania

    Services provided

    10% Web Development
    10% Branding
    10% Business Consulting +7
    10% Custom Software Development
    10% E-Commerce Development
    10% Logo
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    15% C++
    15% PHP +5
    15% Python
    15% jquery
    10% ASP
    10% ColdFusion
    10% Java

    Launched in 2008, High Solutions Web is a branding company. Their services include Branding and Social Media Marketing.

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  • Cur1yJ Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Boulder, CO

    Services provided

    10% Web Development
    20% Custom Software Development
    20% E-Commerce Development +5
    10% AI Development
    10% API Development
    10% Cloud Consulting & SI
    10% Mobile App Development
    10% UX/UI Design

    Focus Areas

    10% JavaScript
    10% ColdFusion
    10% Ember.js +8
    10% HTML5
    10% Java
    10% PHP
    10% Python
    10% backbone.js
    10% jquery
    5% Objective C
    5% Swift

    Cur1yJ, a software development company, was launched in 2011. The team specializes in Custom Software Development and E-Commerce Development.

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  • Tinker Ventures Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Midvale, UT

    Services provided

    10% Web Development
    10% AI Development
    10% API Development +7
    10% BI & Big Data Consulting & SI
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% E-Commerce Development
    10% Mobile App Development
    10% Product Design
    10% UX/UI Design

    Focus Areas

    10% JavaScript
    10% C#
    10% C++ +9
    10% Java
    10% PHP
    10% Python
    10% backbone.js
    10% jquery
    5% HTML5
    5% Objective C
    5% SQL
    5% Swift

    Tinker Ventures, an UX agency, was launched in 2006. The company offers UX/UI Design and Product Design.

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  • Leopard Logotype

    Leopard

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    55% Custom Software Development
    10% Mobile App Development +5
    5% AI Development
    5% API Development
    5% Computer Engineering
    5% ERP Consulting and SI
    5% IoT Development

    Focus Areas

    10% JavaScript
    15% SQL
    10% ASP.NET +9
    10% C#
    10% C++
    10% PHP
    10% Python
    5% C
    5% HTML5
    5% Other programming & scripting languages
    5% Visual Basic
    5% XML

    Software development firm Leopard is located in Durban, South Africa. The team specializes in Custom Software Development and Web Development.

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  • C9 ads Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Wilson, Australia

    Services provided

    10% Web Development
    10% E-Commerce Development
    10% Graphic Design +8
    10% Logo
    10% Packaging Design
    10% Product Marketing
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design
    5% Advertising
    5% Branding

    Focus Areas

    10% JavaScript
    50% PHP
    20% Python +2
    10% C++
    10% Java

    C9 ads is a social media marketing company. Established in 2018, their team specializes in Social Media Marketing and Search Engine Optimization.

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  • Twinology Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    2 - 9
    Barcelona, Spain

    Services provided

    10% Web Development
    10% API Development
    10% Application Management & Support +10
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% IT Strategy Consulting
    10% Microservices Architecture Services
    5% AI Consulting
    5% AI Development
    5% Blockchain
    5% DevOps Managed Services
    5% E-Commerce Development
    5% Mobile App Development

    Focus Areas

    10% JavaScript
    15% ASP.NET
    15% Typescript +7
    10% AJAX
    10% C#
    10% PHP
    10% Python
    10% SQL
    5% HTML5
    5% jquery

    Launched in 2023, Twinology is an IT strategy consulting company. The team offers IT strategy consulting and cloud consulting & SI.

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  • Agencia Digital SP Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9
    Zaragoza, Spain

    Services provided

    10% Web Development
    30% E-Commerce Development
    20% Custom Software Development +4
    10% Branding
    10% IT Strategy Consulting
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    10% JavaScript
    40% PHP
    20% Ruby +3
    15% AJAX
    10% Other programming & scripting languages
    5% HTML5

    Agencia Digital SP is a custom software development company founded in 2013. The team provides Custom Software Development and E-Commerce Development and is headquartered in Zaragoza, Spain.

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  • Primescale Technologies Limited Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Cloud Consulting & SI
    10% AI Development +6
    10% API Development
    10% Custom Software Development
    10% DevOps Managed Services
    10% Generative AI
    10% Low/No Code Development
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    10% AJAX
    10% C# +7
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% Swift
    10% Typescript
    10% jquery

    Primescale Technologies Limited is a small cloud consulting & SI company launched in 2017. Their team offers cloud consulting & SI and Web Development.

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  • CloudAge IO Logotype

    CloudAge IO

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    10% API Development
    10% Custom Software Development +9
    10% IT Managed Services
    10% IT Staff Augmentation
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    5% Blockchain
    5% Cloud Consulting & SI
    5% IT Strategy Consulting
    5% Microservices Architecture Services

    Focus Areas

    10% JavaScript
    30% SQL
    20% Java +4
    15% Kotlin
    10% AJAX
    10% C#
    5% Go

    CloudAge IO is a web design agency established in 2021. In Bucharest, Romania, the team provides Web Design and UX/UI Design.

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  • Arvani Solutions Logotype

    Arvani Solutions

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    10% Application Management & Support
    10% Custom Software Development +7
    10% Graphic Design
    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
    15% Swift
    10% AJAX +8
    10% HTML5
    10% Kotlin
    10% PHP
    10% Python
    10% Typescript
    5% Objective C
    5% Redux
    5% jquery

    Arvani Solutions is a social media marketing firm. The Ambala Cantt, India-based firm was founded in 2024. Their services include Social Media Marketing and Search Engine Optimization.

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  • Tritron Technologies private limited Logotype

    Tritron Technologies private limited

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Development
    10% API Development +8
    10% Application Management & Support
    10% Application Testing
    10% Custom Software Development
    10% E-Commerce Development
    10% Mobile App Development
    10% UX/UI Design
    5% Data Annotation Services
    5% Generative AI

    Focus Areas

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

    Tritron Technologies private limited, an user experience design agency, provide UX/UI Design and Custom Software Development. They were established in 2018.

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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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