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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

  • KSK IT Logotype

    KSK IT

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% AI Development
    15% Custom Software Development +6
    10% Application Management & Support
    10% IT Managed Services
    10% IT Strategy Consulting
    10% Low/No Code Development
    10% Microservices Architecture Services
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    20% C
    20% C++ +4
    20% Rust
    10% HTML5
    10% Python
    10% SQL

    Software development firm KSK IT is based in Mülheim an der Ruhr, Germany. They provide Custom Software Development and Artificial Intelligence and were established in 2024.

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  • BrandaLAB - Web Design & Digital Marketing Logotype

    BrandaLAB - Web Design & Digital Marketing

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% E-Commerce Development
    10% Email Marketing +5
    10% Low/No Code Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    40% SQL
    25% Python +4
    10% PHP
    5% HTML5
    5% XML
    5% jquery

    BrandaLAB - Web Design & Digital Marketing is a small e-commerce development firm established in 2009. Their team provides E-Commerce Development and Web Development.

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  • Quantrio Logotype

    Quantrio

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% API Development
    10% Custom Software Development +7
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% Microservices Architecture Services
    10% Mobile App Development
    10% Product Design
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% ASP.NET +7
    10% C#
    10% HTML5
    10% Java
    10% Redux
    10% SQL
    10% Typescript
    10% jquery

    Established in 2024, Quantrio is a small web design company in Harrisonville, Missouri and Lahore, Pakistan. Their team focuses on Web Design and UX/UI Design.

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  • Turcode Software Logotype

    Not yet reviewed

    $10,000+
    $50 - $99 / hr
    2 - 9
    Bursa, Türkiye

    Services provided

    10% Web Development
    20% Custom Software Development
    15% Application Management & Support +5
    15% E-Commerce Development
    10% Enterprise App Modernization
    10% IoT Development
    10% Low/No Code Development
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    40% SQL
    30% ASP.NET +1
    20% C#

    Turcode Software, a custom software development firm, focus on Custom Software Development and E-Commerce Development. They were launched in 2014.

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  • CoffeeCodes Logotype

    CoffeeCodes

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% API Development
    10% Application Management & Support +7
    10% Custom Software Development
    10% DevOps Managed Services
    10% E-Commerce Development
    10% Generative AI
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    30% Typescript
    20% Go +5
    10% HTML5
    10% PHP
    10% Python
    5% Java
    5% Rust

    Founded in 2020, CoffeeCodes is a small web design agency. Their team offers Web Design and UX/UI Design.

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  • HM和吉家行銷有限公司 Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    大同區, Taiwan

    Services provided

    10% Web Development
    20% Branding
    20% Pay Per Click +3
    20% Search Engine Optimization
    20% Social Media Marketing
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    30% PHP
    30% Python +1
    30% SQL

    HM和吉家行銷有限公司 is a branding company. The 大同區, Taiwan-based company was launched in 2024. Their team focuses on Branding and Social Media Marketing.

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  • LDA Digital Solutions Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    70% CRM Consulting and SI
    10% Custom Software Development +1
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    20% Java
    10% ASP.NET +6
    10% Apex
    10% C++
    10% HTML5
    10% Python
    10% SQL
    10% Swift

    LDA Digital Solutions is a small CRM consulting and SI company established in 2020. Their services include CRM consulting and SI and Custom Software Development.

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  • Contextual Business Services Logotype

    Contextual Business Services

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% HR Outsourcing
    20% PEO/Employee Leasing +4
    20% Staffing
    10% Cybersecurity
    10% Low/No Code Development
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    10% C++
    10% HTML5 +7
    10% Java
    10% Kotlin
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% SQL
    10% jquery

    Contextual Business Services, a Staffing company, is based in. They provide Staffing and PEO/Employee Leasing.

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  • Iobit Solutions Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9
    Dhaka, Bangladesh

    Services provided

    10% Web Development
    20% Cloud Consulting & SI
    15% Cybersecurity +4
    15% DevOps Managed Services
    15% ERP Consulting and SI
    15% IT Managed Services
    10% Low/No Code Development

    Focus Areas

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

    Iobit Solutions is a Dhaka, Bangladesh-based cloud consulting & SI company. The team specializes in cloud consulting & SI and Web Development.

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  • SyncWeb Logotype

    SyncWeb

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Content Marketing
    10% Cybersecurity +8
    10% Logo
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design
    5% AI Development
    5% API Development

    Focus Areas

    10% JavaScript
    15% PHP
    15% Python +7
    15% SQL
    10% C++
    10% Java
    10% jquery
    5% AJAX
    5% C#
    5% HTML5

    SyncWeb, a social media marketing agency, is in Islamabad, Pakistan. Their services include Social Media Marketing and Content Marketing.

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  • 786 Technologies Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Digital Engineering
    10% Custom Software Development +6
    10% Digital Strategy
    10% IT Staff Augmentation
    10% Low/No Code Development
    10% Pay Per Click
    10% Robotics Process Automation
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    35% Python
    30% SQL +1
    25% Java

    786 Technologies is a custom software development company established in 2016. The company offers Custom Software Development and Digital Engineering.

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  • ReviveSoft Logotype

    ReviveSoft

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Development
    10% API Development +7
    10% Application Testing
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% ERP Consulting and SI
    10% Enterprise App Modernization
    10% Mobile App Development
    10% Robotics Process Automation

    Focus Areas

    10% JavaScript
    15% Objective C
    15% Python +5
    15% SQL
    15% Swift
    15% Typescript
    10% Other programming & scripting languages
    5% HTML5

    Launched in 2023, ReviveSoft, a small cloud consulting & SI company, is based in Vienna, Virginia. Their services include cloud consulting & SI and ERP consulting and SI.

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  • DevMyx (Pvt) Ltd Logotype

    DevMyx (Pvt) Ltd

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Development
    10% Blockchain +7
    10% Custom Software Development
    10% DevOps Managed Services
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% IoT Development
    10% Mobile App Development
    10% Robotics Process Automation

    Focus Areas

    10% JavaScript
    10% C#
    10% C++ +10
    10% Java
    10% PHP
    10% Python
    10% SQL
    5% ASP.NET
    5% Kotlin
    5% Ruby
    5% Swift
    5% Typescript
    5% Visual Basic

    DevMyx (Pvt) Ltd is a Colombo, Sri Lanka-based custom software development company. Founded in 2017, the team specializes in Custom Software Development and Web Development.

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  • Lunova Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    50% Custom Software Development
    10% API Development +3
    10% Application Management & Support
    10% Enterprise App Modernization
    10% IT Strategy Consulting

    Focus Areas

    10% JavaScript
    20% ASP.NET
    20% Java +5
    10% ASP
    10% PHP
    10% Python
    10% SQL
    10% Typescript

    Lunova is a small custom software development firm based in Kraków, Poland. Their services include Custom Software Development and IT strategy consulting.

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  • Korevariance Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Morgantown, WV

    Services provided

    10% Web Development
    20% Mobile App Development
    10% Branding +6
    10% Custom Software Development
    10% E-Commerce Development
    10% Pay Per Click
    10% Print Design
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    20% PHP
    20% SQL +5
    10% ASP.NET
    10% C
    10% C#
    10% C++
    10% HTML5

    Korevariance is a small mobile application development firm launched in 2014. Their team focuses on Mobile App Development and Branding.

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  • RC Website Group Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Shillington, PA

    Services provided

    10% Web Development
    10% API Development
    10% Content Marketing +7
    10% Conversion Optimization
    10% E-Commerce Development
    10% Email Marketing
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

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

    RC Website Group is a social media marketing company launched in 2014. The small team specializes in Social Media Marketing and Content Marketing.

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  • DUETHOST Logotype

    DUETHOST

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Cybersecurity
    20% IT Managed Services +4
    20% Search Engine Optimization
    10% API Development
    10% Low/No Code Development
    10% Other IT Consulting and SI

    Focus Areas

    10% JavaScript
    40% PHP
    10% AJAX +4
    10% HTML5
    10% SQL
    10% XML
    10% jquery

    SEO agency DUETHOST focuses on Search Engine Optimization and Cybersecurity. They are in Dhaka, Bangladesh.

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  • TopWeb Logotype

    TopWeb

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Content Marketing
    10% Custom Software Development +7
    10% E-Commerce Development
    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
    30% HTML5
    30% PHP +2
    20% jquery
    10% SQL

    TopWeb is a social media marketing company. They were founded in 2017 and specialize in Social Media Marketing and Content Marketing.

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  • HD SofT - koodarivälitys Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Development
    10% Conversion Optimization +7
    10% Custom Software Development
    10% E-Commerce Development
    10% Email Marketing
    10% IT Staff Augmentation
    10% IT Strategy Consulting
    10% Mobile App Development
    10% Search Engine Optimization

    Focus Areas

    10% JavaScript
    10% AJAX
    10% Java +7
    10% Other programming & scripting languages
    10% PHP
    10% Redux
    10% SQL
    10% Typescript
    10% XML
    10% jquery

    HD SofT - koodarivälitys is an Email Marketing company founded in 2006. The agency specializes in Email Marketing and Conversion Optimization, and is small.

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  • Riyans WebTech Logotype

    Riyans WebTech

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    10% E-Commerce Development
    10% Email Marketing +7
    10% Graphic Design
    10% Logo
    10% Pay Per Click
    10% SMS Marketing
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% C# +7
    10% C++
    10% HTML5
    10% Java
    10% PHP
    10% SQL
    10% Visual Basic
    10% XML

    Riyans WebTech is a social media marketing company. They are located in Kolkata, India, and their services include Social Media Marketing and Email Marketing.

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  • 99Creatix Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Content Marketing
    10% Conversion Optimization +7
    10% Custom Software Development
    10% Email Marketing
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    10% Apex
    10% C++ +9
    10% HTML5
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% Ruby
    5% C#
    5% Perl
    5% SQL
    5% jquery

    Launched in 2023, 99Creatix, a small social media marketing firm, is in Faisalabad, Pakistan. Their services include Social Media Marketing and Content Marketing.

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  • Anzo Technology Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    25% Custom Software Development
    15% Mobile App Development +5
    10% API Development
    10% Application Management & Support
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% IoT Development

    Focus Areas

    10% JavaScript
    10% AJAX
    10% ASP.NET +7
    10% HTML5
    10% Kotlin
    10% Objective C
    10% PHP
    10% SQL
    10% Swift
    10% jquery

    Anzo Technology is a Rajkot, India-based custom software development company. Their services include Custom Software Development and Mobile App Development.

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  • Envision Solution Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% API Development
    10% Custom Software Development +5
    10% Digital Strategy
    10% E-Commerce Development
    10% Graphic Design
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    25% SQL
    15% AJAX +4
    15% ASP.NET
    15% C#
    10% Visual Basic
    10% jquery

    Envision Solution is an API Development company. Their small team is located in Surat, India and focuses on API Development and Digital Strategy. The firm was established in 2021.

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  • BIZSOKAE MARKETING AND ENGINEERING SERVICES PRIVATE LIMITED Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    25% Branding
    20% UX/UI Design +4
    15% Graphic Design
    10% E-Commerce Development
    10% HR Outsourcing
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    30% HTML5
    25% jquery +2
    20% Typescript
    15% Python

    BIZSOKAE MARKETING AND ENGINEERING SERVICES PRIVATE LIMITED is a small branding company founded in 2024. Their services include Branding and UX/UI Design.

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  • devSpark Ltd Logotype

    devSpark Ltd

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Development
    10% API Development +7
    10% Application Management & Support
    10% Application Testing
    10% Custom Software Development
    10% E-Commerce Development
    10% IT Strategy Consulting
    10% IoT Development
    10% Mobile App Development

    Focus Areas

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

    IT strategy consulting company devSpark Ltd was launched in 2024. The team focuses on IT strategy consulting and Custom Software Development and is in Manchester, England.

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  • Syntra Softwares Logotype

    Syntra Softwares

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Development
    10% API Development +7
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% DevOps Managed Services
    10% IT Strategy Consulting
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    30% Python
    10% C++ +8
    10% HTML5
    10% Java
    5% C#
    5% Kotlin
    5% Objective C
    5% Other programming & scripting languages
    5% SQL
    5% XML

    Syntra Softwares, a web design company, is located in Ahmedabad, India. The team specializes in Web Design and UX/UI Design.

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  • GeekSpoc IT Services Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Custom Software Development
    10% E-Commerce Development +7
    10% ERP Consulting and SI
    10% IT Managed Services
    10% IoT Development
    10% Mobile App Development
    10% Other Application Development
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

    10% JavaScript
    10% HTML5
    10% Java +7
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% Swift
    10% jquery

    GeekSpoc IT Services is a SEO agency. They are headquartered in Bengaluru, India, and their services include Search Engine Optimization and Web Design.

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  • Web Proxima Logotype

    Web Proxima

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    65% Web Design
    10% E-Commerce Development +2
    10% Search Engine Optimization
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    40% SQL
    20% AJAX +3
    15% Kotlin
    10% Python
    5% PHP

    Web Proxima is a New Delhi, India-based web design agency. Their services include Web Design and Search Engine Optimization.

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  • Perfect Digital Marketing Solutions Logotype

    Perfect Digital Marketing Solutions

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Search Engine Optimization
    10% Content Marketing +6
    10% E-Commerce Development
    10% Ecommerce Marketing
    10% Email Marketing
    10% Market Research
    10% Pay Per Click
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    35% HTML5
    25% SQL +3
    15% XML
    10% PHP
    5% jquery

    Perfect Digital Marketing Solutions is a SEO company founded in 2021. The agency focuses on Search Engine Optimization and Market Research.

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  • Cresra Logotype

    Cresra

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Development
    10% Blockchain +7
    10% Custom Software Development
    10% E-Commerce Development
    10% Generative AI
    10% IoT Development
    10% Microservices Architecture Services
    10% Mobile App Development
    10% Wearable App Development

    Focus Areas

    10% JavaScript
    10% C++
    10% Go +7
    10% Other programming & scripting languages
    10% Python
    10% Redux
    10% Rust
    10% SQL
    10% Swift
    10% Typescript

    Established in 2025, Cresra is a small Islamabad, Pakistan-based artificial intelligence company. Their team focuses on Artificial Intelligence and Generative AI.

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  • Mas Vashu Logotype

    Mas Vashu

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Advertising
    10% Branding +7
    10% Business Consulting
    10% Content Marketing
    10% Email Marketing
    10% Marketing Strategy
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    15% Ember.js
    15% Redux +7
    10% Java
    10% Kotlin
    10% Other programming & scripting languages
    10% Python
    10% Typescript
    5% HTML5
    5% PHP

    Mas Vashu is an Advertising company. They provide Advertising and Branding and are based in Burbank, California.

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  • Pizero Logotype

    Pizero

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Custom Software Development
    10% AI Agents +6
    10% API Development
    10% Cybersecurity
    10% E-Commerce Development
    10% IT Strategy Consulting
    10% Microservices Architecture Services
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    25% PHP
    15% Kotlin +4
    15% SQL
    15% Swift
    10% AJAX
    10% Python

    Pizero is a Lucca, Italy-based software development company. They specialize in Custom Software Development and IT strategy consulting and were founded in 2013.

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  • Tresundios Software Products and Services Private Limited Logotype

    Tresundios Software Products and Services Private Limited

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    10% JavaScript
    10% AJAX
    10% HTML5 +7
    10% Other programming & scripting languages
    10% PHP
    10% Perl
    10% Python
    10% Redux
    10% Ruby
    10% Typescript

    Tresundios Software Products and Services Private Limited is a software development company founded in 2024. The team focuses on Custom Software Development and Web Development.

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  • Neuvon Software Logotype

    Neuvon Software

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    10% AI Agents
    10% AI Consulting +9
    10% AI Development
    10% API Development
    10% Custom Software Development
    10% IT Strategy Consulting
    10% Low/No Code Development
    5% Application Testing
    5% E-Commerce Development
    5% Mobile App Development
    5% Search Engine Optimization

    Focus Areas

    10% JavaScript
    10% AJAX
    10% C++ +8
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% SQL
    10% Typescript
    10% XML
    5% Java
    5% Redux

    Neuvon Software is an AI Consulting company. They were launched in 2025, and their services include AI Consulting and Artificial Intelligence.

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  • MapCore Softech LLP Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% AI Development
    15% AI Agents +4
    15% Generative AI
    10% AI Consulting
    10% Custom Software Development
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    30% Java
    30% Python +3
    15% SQL
    10% Typescript
    5% Scala

    MapCore Softech LLP, an artificial intelligence development company, is headquartered in Pune, India. Launched in 2025, the team provides Artificial Intelligence and Generative AI.

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  • Site Design Squad Logotype

    Site Design Squad

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% Web Design
    10% Ecommerce Marketing +5
    10% Email Marketing
    10% Pay Per Click
    10% Search Engine Optimization
    5% Affiliate Marketing
    5% Social Media Marketing

    Focus Areas

    10% JavaScript
    30% Redux
    15% PHP +6
    10% AJAX
    10% HTML5
    10% Java
    5% Python
    5% SQL
    5% jquery

    Site Design Squad is a web design agency. Founded in 2019, the team specializes in Web Design and Email Marketing. The agency is headquartered in Poole, England.

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  • Wheeling Software Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Cloud Consulting & SI
    20% Custom Software Development +4
    20% DevOps Managed Services
    10% AI Agents
    10% AI Consulting
    10% AI Development

    Focus Areas

    10% JavaScript
    20% C#
    20% SQL +5
    10% ASP.NET
    10% HTML5
    10% Python
    10% Ruby
    10% Typescript

    Established in 2026, Wheeling Software is a cloud consulting & SI company. The agency specializes in cloud consulting & SI and Custom Software Development.

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  • Resilient Innovation & Information Technology Logotype

    Resilient Innovation & Information Technology

    Not yet reviewed

    $1,000+
    Undisclosed
    2 - 9

    Services provided

    10% Web Development
    40% AI Agents
    40% IT Strategy Consulting +1
    10% E-Commerce Development

    Focus Areas

    10% JavaScript
    40% Java
    20% PHP +2
    20% Python
    10% HTML5

    Located in Mumbai, India, Resilient Innovation & Information Technology is a small AI Agents company. Their services include AI Agents and IT strategy consulting.

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    $99 Best for Small businesses & agencies. $199 For institutes & professional service firms $299 For corporate branding & premium businesses

    STATIC WEB SITE DEVELOPMENT

    Static web site development & Hosting using google site platform. Basic SEO & Google Analytics support. Page content, assets/Images/video to be provided by the client. No e-commerce or dynamic data or integration. Any service related to content or asset formatting will charge appropriately. Site maintenance will be covered in separate package.
    View Packages
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  • Averon Technologies Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    60% Mobile App Development
    15% Application Management & Support +3
    5% Custom Software Development
    5% E-Commerce Development
    5% Enterprise App Modernization

    Focus Areas

    10% JavaScript
    20% Kotlin
    20% Swift +7
    10% Java
    10% Objective C
    10% PHP
    5% HTML5
    5% Python
    5% SQL
    5% Typescript

    Averon Technologies is an app development firm. Founded in 2026, the firm is in Rajkot, India. Their services include Mobile App Development and Application Management & Support.

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  • Originsoft Consultancy Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Agents
    10% AI Development +7
    10% API Development
    10% DevOps Managed Services
    10% Generative AI
    10% Low/No Code Development
    10% Microservices Architecture Services
    10% Mobile App Development
    10% Video Production

    Focus Areas

    10% JavaScript
    10% AJAX
    10% C# +7
    10% HTML5
    10% Java
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% SQL
    10% Typescript

    Originsoft Consultancy is a website development company launched in 2011. The company provides Web Development and Mobile App Development, and is small.

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  • Viprasol Tech Private Limited Logotype

    Viprasol Tech Private Limited

    Not yet reviewed

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

    Services provided

    10% Web Development
    25% AI Agents
    25% Custom Software Development +4
    15% AI Development
    10% API Development
    10% Generative AI
    5% Mobile App Development

    Focus Areas

    10% JavaScript
    35% Other programming & scripting languages
    20% Python +3
    20% Typescript
    10% SQL
    5% C#

    Headquartered in Julana, India, Viprasol Tech Private Limited is a small custom software development company. Their services include Custom Software Development and AI Agents.

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  • Qartivus Technologies Logotype

    Not yet reviewed

    $10,000+
    $300+ / hr
    2 - 9
    Sfax, Tunisia

    Services provided

    10% Web Development
    10% API Development
    10% Application Testing +9
    10% Computer Engineering
    10% Custom Software Development
    10% DevOps Managed Services
    10% Microservices Architecture Services
    10% Mobile App Development
    5% AI Development
    5% Application Management & Support
    5% Enterprise App Modernization
    5% IT Strategy Consulting

    Focus Areas

    10% JavaScript
    10% Java
    10% Python +13
    10% Swift
    5% C
    5% C++
    5% HTML5
    5% Kotlin
    5% Objective C
    5% Perl
    5% Ruby
    5% Rust
    5% SQL
    5% Typescript
    5% Visual Basic
    5% XML

    Qartivus Technologies is a custom software development company. The Sfax, Tunisia-based company provides Custom Software Development and Web Development.

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  • ARITOM TECHNOLOGIES LTD Logotype

    Not yet reviewed

    $5,000+
    Undisclosed
    2 - 9
    London, England

    Services provided

    10% Web Development
    20% AI Development
    15% AI Agents +6
    10% Custom Software Development
    10% E-Commerce Development
    10% Generative AI
    10% Product Design
    10% Social Media Marketing
    5% Web Design

    Focus Areas

    10% JavaScript
    40% Python
    25% PHP +3
    15% Other programming & scripting languages
    5% Java
    5% Typescript

    ARITOM TECHNOLOGIES LTD is an AI development company. Based in London, England, their small team specializes in Artificial Intelligence and AI Agents. The agency was established in 2026.

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  • Ideascape Logotype

    Ideascape

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Custom Software Development
    15% Cloud Consulting & SI +5
    15% IT Strategy Consulting
    10% API Development
    10% Application Testing
    10% IT Managed Services
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    60% Typescript
    20% SQL +2
    5% Go
    5% Python

    Ideascape is a Bloemfontein, South Africa-based software development firm. Their services include Custom Software Development and cloud consulting & SI.

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  • ForgingApps Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    35% AI Agents
    20% Custom Software Development +2
    20% Mobile App Development
    15% AI Consulting

    Focus Areas

    10% JavaScript
    35% Kotlin
    20% Java +3
    15% Swift
    15% Typescript
    5% SQL

    ForgingApps is an AI Agents company. The team offers AI Agents and Custom Software Development and is in Sofia, Bulgaria.

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  • Digital Dolphin Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Custom Software Development
    10% E-Commerce Development +10
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    5% AI Development
    5% Branding
    5% Email Marketing
    5% Generative AI
    5% Pay Per Click
    5% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% PHP +12
    10% Python
    10% Typescript
    5% ASP.NET
    5% C#
    5% C++
    5% HTML5
    5% Java
    5% Other programming & scripting languages
    5% Perl
    5% Ruby
    5% SQL
    5% jquery

    Launched in 2025, Digital Dolphin is a small social media marketing firm. Their team focuses on Social Media Marketing and Search Engine Optimization.

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  • SpeedX Marketing Logotype

    SpeedX Marketing

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% AI Agents
    20% AI Consulting +3
    20% AI Development
    15% Content Marketing
    15% Custom Software Development

    Focus Areas

    10% JavaScript
    25% Python
    15% PHP +4
    15% Ruby
    15% SQL
    10% HTML5
    10% Typescript

    SpeedX Marketing is an artificial intelligence development company founded in 2016. The firm specializes in Artificial Intelligence and AI Consulting, and is small.

    Read more
    View Profile
  • Paymax Solutions Logotype

    Paymax Solutions

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% Custom Software Development
    10% Application Management & Support +4
    10% E-Commerce Development
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    20% HTML5
    15% Typescript +6
    10% Other programming & scripting languages
    10% PHP
    10% Rust
    10% SQL
    10% jquery
    5% Redux

    Paymax Solutions is a software development firm located in Ahmedabad, India. Launched in 2025, the team provides Custom Software Development and UX/UI Design.

    Read more
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  • HumbleDevs Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% Custom Software Development
    30% API Development +1
    20% Application Management & Support

    Focus Areas

    10% JavaScript
    70% Typescript
    20% SQL

    HumbleDevs, a custom software development company, was founded in 2020. Based in Dover, Delaware, the team focuses on Custom Software Development and API Development.

    Read more
    View Profile
  • Nexgale Dynamics Private Limited Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    35% AI Development
    25% Custom Software Development +3
    15% Mobile App Development
    10% E-Commerce Development
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    15% Python
    10% Java +11
    10% Kotlin
    10% Objective C
    5% ASP.NET
    5% C++
    5% PHP
    5% Ruby
    5% Rust
    5% SQL
    5% Swift
    5% Typescript
    5% backbone.js

    Established in 2025, Nexgale Dynamics Private Limited is an AI firm. Their team focuses on Artificial Intelligence and Custom Software Development.

    Read more
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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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