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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: April 1, 2026
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15 Leaders 15 Contenders

21,840 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

  • Featured

    What are Featured Providers?

    Digis, a Fiverr company (NYSE: FVRR) Logotype

    Digis, a Fiverr company (NYSE: FVRR)

    4.9 89 reviews
    Premier Verified
    $5,000+
    $25 - $49 / hr
    50 - 249
    London, England

    Services provided

    40% Web Development
    40% Custom Software Development
    20% IT Staff Augmentation

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C# +7
    10% Java
    10% PHP
    10% Python
    10% Rust
    10% SQL
    10% Scala
    10% Swift

    Digis, a Fiverr company (NYSE: FVRR), specializes in Web Development, providing comprehensive services such as Front-End Development, Back-End Development, and Custom Website Development. Their reviews indicate a 100% satisfaction rate, highlighting their strong project management, technical expertise, and clear communication. Approximately 70% of reviewers emphasize their seamless integration into teams and high-quality deliverables.

    See all 89 projects
    6 of 6 JavaScript reviews are 5 stars
    1 new review for JavaScript in past 6 months
    $10,000 – $49,000 avg. project cost

    JavaScript Experience

    Digis has received overwhelmingly positive feedback for their JavaScript services, with 90% of clients noting effective communication and timely delivery. Clients have praised the expertise of their developers, particularly in frontend and full-stack development, contributing to improved project turnaround times by 40%-50%. Notable strengths include their ability to adapt to client needs, provide high-quality code, and offer innovative solutions without requiring micromanagement. Overall, there are no significant areas for improvement mentioned, indicating strong client satisfaction.

    Read Most Recent Review
    17 of 23 Web Development reviews are 5 stars
    2 new reviews for Web Development in past 6 months
    $50,000 – $199,999 avg. project cost

    Web Development PROJECT HIGHLIGHT

    Hosting Platform Development for Advertising & Marketing Co

    4.5 — Digis developed an automated hosting platform with cPanel integration, email automation, and GitHub automation for an advertising and marketing company. Read more
    Read 23 Reviews

    Average Project Cost Breakdown

    $10,000 to $49,000 (25) $50,000 to $199,999 (16) Less than $10,000 (8) $200,000 to $999,999 (6) $1,000,000 to $9,999,999 (4)

    What Clients Have Said

    Clients have consistently praised the company's cost-effectiveness and value for money. Many reviews note that Digis' pricing aligns well with client budgets while delivering high-quality work. For instance, one client highlighted that Digis offered 'good value for cost' and another mentioned a 'significant reduction in project turnaround time by 40%–50%.' Overall, the sentiment is overwhelmingly positive, with clients emphasizing their satisfaction with the quality of service relative to the investment made.
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    $50,000 Best for Small Companies $75,000 Best for Medium Companies $100,000 Best for Enterprises

    Custom Product Development

    Our specialists around the globe provide the expertise and development resources to scale your IT products and achieve success.
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  • Canopus IT Solutions Pvt. Ltd Logotype

    Canopus IT Solutions Pvt. Ltd

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% API Development
    10% Custom Software Development +7
    10% E-Commerce Development
    10% Email Marketing
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design

    Focus Areas

    20% JavaScript
    20% PHP
    20% jquery +4
    10% AJAX
    10% HTML5
    10% Kotlin
    10% SQL

    Canopus IT Solutions Pvt. Ltd is an Email Marketing company founded in 2007. Their services include Email Marketing and Search Engine Optimization.

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  • BitByte Software Technology Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% Mobile App Development
    10% AI Development +6
    10% BI & Big Data Consulting & SI
    10% Custom Software Development
    10% DevOps Managed Services
    10% Generative AI
    10% IoT Development
    10% Microservices Architecture Services

    Focus Areas

    15% JavaScript
    20% Java
    20% Python +7
    10% HTML5
    10% SQL
    5% AJAX
    5% Other programming & scripting languages
    5% PHP
    5% Typescript
    5% jquery

    Established in 2016, BitByte Software Technology is a website development firm. The small team specializes in Web Development and Mobile App Development.

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  • Leonstride Technologies Pvt Ltd Logotype

    Leonstride Technologies Pvt Ltd

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% BI & Big Data Consulting & SI
    20% Cloud Consulting & SI +3
    20% Mobile App Development
    10% AI Development
    10% Application Testing

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C +7
    10% C#
    10% Java
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% Visual Basic

    Established in 2018, Leonstride Technologies Pvt Ltd is a business intelligence company. Their services include BI & big data consulting & SI and cloud consulting & SI.

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  • MIC Technologies Logotype

    MIC Technologies

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    10 - 49

    Services provided

    15% Web Development
    40% Custom Software Development
    20% Mobile App Development +4
    10% Market Research
    5% Email Marketing
    5% Search Engine Optimization
    5% Social Media Marketing

    Focus Areas

    15% JavaScript
    20% PHP
    20% Python +5
    15% HTML5
    10% Go
    10% jquery
    5% Java
    5% Swift

    Founded in 2011, MIC Technologies is a small Buenos Aires, Argentina-based custom software development firm. Their team provides Custom Software Development and Mobile App Development.

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  • Jotix Technologies Logotype

    Jotix Technologies

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% E-Commerce Development +2
    20% Search Engine Optimization
    20% Web Design

    Focus Areas

    10% JavaScript
    55% PHP
    10% HTML5 +4
    10% jquery
    5% AJAX
    5% SQL
    5% XML

    Jotix Technologies is a small SEO services firm founded in 2010. Their services include Search Engine Optimization and Web Design.

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  • ELITSER IT SOLUTION Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    10 - 49
    jakarta , Indonesia

    Services provided

    20% Web Development
    20% CRM Consulting and SI
    20% Cloud Consulting & SI +2
    20% Custom Software Development
    20% IT Strategy Consulting

    Focus Areas

    10% JavaScript
    30% Java
    20% PHP +3
    20% SQL
    10% AJAX
    10% jquery

    ELITSER IT SOLUTION is an IT strategy consulting company. The firm is located in jakarta , Indonesia. Their team offers IT strategy consulting and cloud consulting & SI.

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  • RF Technologies Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    10% JavaScript
    20% ASP.NET
    10% AJAX +9
    10% C#
    10% SQL
    10% Visual Basic
    5% ASP
    5% C
    5% Other programming & scripting languages
    5% PHP
    5% backbone.js
    5% jquery

    RF Technologies is a graphic design agency based in Rawalpindi, Pakistan. The team specializes in Graphic Design and Custom Software Development.

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  • Workship Inc Logotype

    Workship Inc

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% DevOps Managed Services +2
    20% Mobile App Development
    20% UX/UI Design

    Focus Areas

    10% JavaScript
    10% Go
    10% Java +7
    10% Kotlin
    10% PHP
    10% Python
    10% Redux
    10% Ruby
    10% SQL
    10% Typescript

    Workship Inc is an user experience agency. The Lewes, Delaware-based firm was founded in 2017. Their services include UX/UI Design and Custom Software Development.

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  • Konect360 Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    10 - 49
    Belleville, IL

    Services provided

    10% Web Development
    20% Business Consulting
    10% CRM Consulting and SI +6
    10% Custom Software Development
    10% Digital Strategy
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% IT Managed Services
    10% Marketing Strategy

    Focus Areas

    20% JavaScript
    20% AJAX
    20% HTML5 +2
    20% PHP
    20% jquery

    Business Consulting company Konect360 was founded in 2016. The team focuses on Business Consulting and Marketing Strategy.

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  • Digikin Infotech Logotype

    Digikin Infotech

    Not yet reviewed

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

    Services provided

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

    Focus Areas

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

    Launched in 2020, Digikin Infotech is a small Ahmedabad, India-based ERP consulting and SI company. Their services include ERP consulting and SI and Custom Software Development.

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  • Ceative Content Logotype

    Ceative Content

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Digital Strategy
    20% Mobile App Development +2
    20% UX/UI Design
    20% Web Design

    Focus Areas

    10% JavaScript
    30% PHP
    10% AJAX +6
    10% Other programming & scripting languages
    10% Python
    10% Swift
    10% jquery
    5% Kotlin
    5% Redux

    Founded in 2015, Ceative Content is a small Dubai, United Arab Emirates-based Digital Strategy company. Their services include Digital Strategy and Web Design.

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  • KPIE Technology Logotype

    KPIE Technology

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    10 - 49

    Services provided

    20% Web Development
    20% Mobile App Development
    20% Pay Per Click +2
    20% Search Engine Optimization
    20% UX/UI Design

    Focus Areas

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

    SEO agency KPIE Technology focuses on Search Engine Optimization and Pay Per Click. They were launched in 2013.

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  • Versasia Infosoft Pvt Ltd Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    35% Engineering
    25% Mobile App Development +2
    20% Custom Software Development
    10% E-Commerce Development

    Focus Areas

    20% JavaScript
    30% SQL
    25% PHP +3
    10% HTML5
    10% jquery
    5% ASP.NET

    Versasia Infosoft Pvt Ltd is a small Engineering company. Established in 2006, the team specializes in Engineering and Mobile App Development.

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  • Petalnex Logotype

    Petalnex

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    10 - 49

    Services provided

    20% Web Development
    20% Search Engine Optimization
    20% Social Media Marketing +2
    20% UX/UI Design
    20% Web Design

    Focus Areas

    10% JavaScript
    15% PHP
    15% Typescript +6
    15% jquery
    10% AJAX
    10% HTML5
    10% Rust
    10% SQL
    5% XML

    Petalnex, a social media marketing firm, offer Social Media Marketing and Search Engine Optimization. They were established in 2022.

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  • Cyber Expert Logotype

    Cyber Expert

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Mobile App Development +2
    20% UX/UI Design
    20% Web Design

    Focus Areas

    10% JavaScript
    15% ASP.NET
    15% Redux +6
    15% SQL
    15% Typescript
    10% AJAX
    10% jquery
    5% C#
    5% HTML5

    Web design agency Cyber Expert is in Gurugram, India. Their services include Web Design and UX/UI Design.

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  • LET ME Design and Development LTD Logotype

    LET ME Design and Development LTD

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% API Development
    20% Cloud Consulting & SI +2
    20% IT Managed Services
    20% Mobile App Development

    Focus Areas

    10% JavaScript
    20% C#
    20% HTML5 +4
    20% Typescript
    10% Objective C
    10% Python
    10% Swift

    Launched in 2019, LET ME Design and Development LTD is a cloud consulting & SI company. The agency provides cloud consulting & SI and IT managed services, and is small.

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  • Sm Softwares Logotype

    Sm Softwares

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    10% JavaScript
    15% PHP
    15% Python +7
    10% HTML5
    10% SQL
    10% Typescript
    10% XML
    10% jquery
    5% AJAX
    5% Swift

    In Pune, India, Sm Softwares is a custom software development firm. They offer Custom Software Development and Web Development and were established in 2016.

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  • WorkSaar Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    35% Custom Software Development
    25% Mobile App Development +2
    15% IT Staff Augmentation
    5% AI Development

    Focus Areas

    10% JavaScript
    25% PHP
    10% AJAX +6
    10% Kotlin
    10% Python
    10% SQL
    10% Swift
    10% Typescript
    5% HTML5

    WorkSaar is a custom software development firm launched in 2020. The company offers Custom Software Development and Mobile App Development.

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  • Teksolto Software Pvt. Ltd Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    10 - 49
    Pune, India

    Services provided

    20% Web Development
    30% Custom Software Development
    20% AI Development +2
    20% IT Staff Augmentation
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    50% Java
    25% Typescript +2
    10% HTML5
    5% SQL

    Teksolto Software Pvt. Ltd, a small custom software development company, is based in Pune, India. Their services include Custom Software Development and IT staff augmentation.

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  • BBS Tech Logotype

    BBS Tech

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Cloud Consulting & SI
    20% Custom Software Development +2
    20% Mobile App Development
    20% UX/UI Design

    Focus Areas

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

    BBS Tech is an user experience agency. The team provides UX/UI Design and cloud consulting & SI, and the agency is based in Bengaluru , India.

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  • Smart Dev Hub Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    10 - 49
    Abu Dhabi, United Arab Emirates

    Services provided

    20% Web Development
    20% Mobile App Development
    20% Search Engine Optimization +2
    20% Social Media Marketing
    20% UX/UI Design

    Focus Areas

    10% JavaScript
    15% HTML5
    15% Python +6
    10% ASP.NET
    10% C++
    10% Java
    10% PHP
    10% SQL
    10% Swift

    Smart Dev Hub is a social media marketing firm. Founded in 2024, their team focuses on Social Media Marketing and Search Engine Optimization.

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  • Netish technologies Logotype

    Netish technologies

    Not yet reviewed

    Undisclosed
    < $25 / hr
    10 - 49

    Services provided

    10% Web Development
    25% Video Production
    20% Print Design +5
    10% Graphic Design
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    5% Audio Production

    Focus Areas

    20% JavaScript
    40% HTML5
    20% PHP +1
    20% jquery

    Netish technologies is a video production agency located in Noida, India. They provide Video Production and Print Design.

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  • InfotoHow Logotype

    InfotoHow

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    10% Web Development
    30% Content Marketing
    25% Graphic Design +3
    15% Web Design
    10% Affiliate Marketing
    10% Document Digitization & Management

    Focus Areas

    10% JavaScript
    10% C
    10% C# +10
    10% Java
    10% PHP
    10% SQL
    10% XML
    5% ASP
    5% ASP.NET
    5% C++
    5% Objective C
    5% Python
    5% Visual Basic

    InfotoHow is a small Content Marketing company launched in 2019. Their team specializes in Content Marketing and Graphic Design.

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  • Morshadul Logotype

    5.0 1 review
    Undisclosed
    < $25 / hr
    Freelancer
    Lisboa, Portugal

    Services provided

    15% Web Development
    15% E-Commerce Development
    15% Search Engine Optimization +4
    15% Social Media Marketing
    15% Video Marketing
    15% Web Design
    10% Graphic Design

    Focus Areas

    35% JavaScript
    35% PHP
    30% HTML5

    We specialize in crafting high-quality, custom websites tailored to meet the unique needs of businesses and individuals at budget-friendly prices. Our team of skilled designers and developers is

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  • The Visualizer Logotype

    The Visualizer

    5.0 1 review
    Undisclosed
    < $25 / hr
    50 - 249

    Services provided

    10% Web Development
    10% Mobile App Development
    7% UX/UI Design +27
    5% AI Development
    5% AR/VR Development
    5% E-Commerce Development
    5% IoT Development
    5% Video Production
    5% Wearable App Development
    4% Custom Software Development
    3% Content Marketing
    3% IT Managed Services
    3% Mobile & App Marketing
    3% Social Media Marketing
    2% API Development
    2% Ecommerce Marketing
    2% Email Marketing
    2% Generative AI
    2% Graphic Design
    2% IT Strategy Consulting
    2% Marketing Strategy
    2% Pay Per Click
    2% Product Design
    2% Video Marketing
    2% Web Design
    1% Advertising
    1% Branding
    1% Broadcast Video
    1% Event Management
    1% Public Relations

    Focus Areas

    15% JavaScript
    15% PHP
    10% C# +9
    10% Kotlin
    10% Objective C
    10% Swift
    5% HTML5
    5% Java
    5% Python
    5% Ruby
    5% SQL
    5% Visual Basic

    The Visualizer provides UI/UX design, brand color selection, logo design, and graphic design services. Clients praise their creativity, promptness, and alignment with company values. Projects are completed on time and within budget, with impressive outcomes and responsive communication, making The Visualizer a reliable partner for design needs.

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  • Automly App Development Company Logotype

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    Freelancer
    Chicago, IL

    Services provided

    30% Web Development
    20% Custom Software Development
    20% Enterprise App Modernization +2
    20% Mobile App Development
    10% UX/UI Design

    Focus Areas

    20% JavaScript
    20% ASP.NET
    20% C# +2
    20% PHP
    20% SQL

    Founded in 2011, Automly App Development Company is a web development firm. The firm specializes in Web Development and Custom Software Development.

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  • Webemia Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    Freelancer
    Los Angeles, CA

    Services provided

    40% Web Development
    40% Web Design
    5% Advertising +3
    5% Branding
    5% Logo
    5% Market Research

    Focus Areas

    10% JavaScript
    70% PHP
    20% ASP.NET

    Webemia is a web design company launched in 2013. Headquartered in Los Angeles, California, the team focuses on Web Design and Web Development.

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  • I Create Websites Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    Freelancer
    Hamilton, New Zealand

    Services provided

    25% Web Development
    25% Branding
    25% Search Engine Optimization +1
    25% Web Design

    Focus Areas

    25% JavaScript
    25% AJAX
    25% PHP +1
    25% SQL

    I Create Websites is a branding firm. Their small team is based in Hamilton, New Zealand and Hamilton, New Zealand. Their services include Branding and Search Engine Optimization.

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  • FRESH TECH Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    Freelancer
    Piatra Neamț, Romania

    Services provided

    40% Web Development
    20% UX/UI Design
    15% Custom Software Development +11
    5% E-Commerce Development
    5% Web Design
    3% Logo
    2% Application Testing
    2% IT Strategy Consulting
    2% Print Design
    2% Product Design
    1% Branding
    1% Content Marketing
    1% Digital Strategy
    1% Social Media Marketing

    Focus Areas

    10% JavaScript
    50% PHP
    20% SQL +2
    10% AJAX
    10% Other programming & scripting languages

    Founded in 2012, FRESH TECH is a web development firm. Their services include Web Development and UX/UI Design.

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  • Zeiore Interactive Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    50 - 249
    Mumbai, India

    Services provided

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

    Focus Areas

    15% JavaScript
    20% PHP
    20% SQL +3
    15% AJAX
    15% Java
    15% XML

    Zeiore Interactive is a Mumbai, India-based UX agency. They provide UX/UI Design and E-Commerce Development and were established in 2011.

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  • François De Sousa Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Application Testing
    20% UX/UI Design +4
    15% Email Marketing
    15% Search Engine Optimization
    10% Low/No Code Development
    10% Pay Per Click

    Focus Areas

    40% JavaScript
    60% Other programming & scripting languages

    François De Sousa is an UX design company. The company is headquartered in Marseille, France. Their services include UX/UI Design and Web Development.

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  • Primal42 Web Design & SEO Services Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    Freelancer
    Poulton-le-Fylde, England

    Services provided

    20% Web Development
    50% Web Design
    15% UX/UI Design +3
    5% Graphic Design
    5% Pay Per Click
    5% Social Media Marketing

    Focus Areas

    30% JavaScript
    50% PHP
    10% SQL +2
    5% AJAX
    5% XML

    Primal42 Web Design & SEO Services is a Poulton-le-Fylde, England-based web design agency. The team specializes in Web Design and Web Development.

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  • ITMakerz Solutions Pvt Ltd Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    50 - 249
    Ahmedabad, India

    Services provided

    10% Web Development
    20% Mobile App Development
    13% E-Commerce Development +6
    11% Blockchain
    10% Graphic Design
    10% Low/No Code Development
    10% UX/UI Design
    10% Web Design
    6% IT Managed Services

    Focus Areas

    15% JavaScript
    20% Other programming & scripting languages
    20% PHP +3
    15% AJAX
    15% HTML5
    15% SQL

    ITMakerz Solutions Pvt Ltd is an app development company founded in 2020. The firm specializes in Mobile App Development and Web Development, and is midsize.

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  • Lavorg Technologies GmbH Logotype

    Lavorg Technologies GmbH

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    50 - 249

    Services provided

    15% Web Development
    15% Mobile App Development
    10% Custom Software Development +17
    6% DevOps Managed Services
    5% API Development
    5% CRM Consulting and SI
    5% Cloud Consulting & SI
    5% E-Commerce Development
    5% ERP Consulting and SI
    5% IT Managed Services
    5% UX/UI Design
    3% Web Design
    2% AI Development
    2% AR/VR Development
    2% Application Management & Support
    2% BI & Big Data Consulting & SI
    2% Blockchain
    2% Enterprise App Modernization
    2% IoT Development
    2% Wearable App Development

    Focus Areas

    10% JavaScript
    20% PHP
    20% Python +4
    20% Redux
    10% HTML5
    10% Java
    10% Typescript

    Website development company Lavorg Technologies GmbH was established in 2011. The agency provides Web Development and Mobile App Development, and is midsize.

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  • Fpedraza Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    Freelancer
    Cartagena de Indias, Colombia

    Services provided

    20% Web Development
    30% Search Engine Optimization
    10% Digital Strategy +4
    10% E-Commerce Development
    10% Low/No Code Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    30% JavaScript
    50% PHP
    10% HTML5 +1
    10% SQL

    Fpedraza is a SEO agency. Their small team of employees is headquartered in Cartagena de Indias, Colombia. Their team offers Search Engine Optimization and Web Development.

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  • BESTONE MEEST INFORMATION TECHNOLOGY SERVICES PRIVATE LIMITED (BMITS) Logotype

    BESTONE MEEST INFORMATION TECHNOLOGY SERVICES PRIVATE LIMITED (BMITS)

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% Custom Software Development
    15% Mobile App Development +9
    10% Application Testing
    10% E-Commerce Development
    5% Graphic Design
    5% Mobile & App Marketing
    5% Pay Per Click
    5% Search Engine Optimization
    5% Social Media Marketing
    5% UX/UI Design
    5% Web Design

    Focus Areas

    10% JavaScript
    25% Other programming & scripting languages
    25% PHP +3
    20% Swift
    10% Python
    10% SQL

    BESTONE MEEST INFORMATION TECHNOLOGY SERVICES PRIVATE LIMITED (BMITS) is a custom software development firm located in Delhi, India. They offer Custom Software Development and Web Development.

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  • Apoddo Logotype

    Not yet reviewed

    $100,000+
    $50 - $99 / hr
    50 - 249
    Beograd, Serbia

    Services provided

    15% Web Development
    10% API Development
    10% BI & Big Data Consulting & SI +12
    10% Custom Software Development
    10% IT Managed Services
    10% IT Staff Augmentation
    10% Low/No Code Development
    5% AI Development
    5% Cloud Consulting & SI
    5% Mobile App Development
    5% Staffing
    2% E-Commerce Development
    1% AR/VR Development
    1% IT Strategy Consulting
    1% IoT Development

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C# +10
    10% Java
    10% Python
    10% Swift
    10% Typescript
    5% Kotlin
    5% Objective C
    5% Other programming & scripting languages
    5% PHP
    5% SQL
    5% Scala

    Apoddo, a software development company, was founded in 2017. They offers Custom Software Development and Web Development.

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  • CodeLabAI Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    15% AI Development
    15% API Development +5
    15% DevOps Managed Services
    10% Custom Software Development
    10% IoT Development
    10% Low/No Code Development
    5% Application Testing

    Focus Areas

    30% JavaScript
    30% Ruby
    20% SQL +2
    10% AJAX
    10% Python

    CodeLabAI, a small software development company, is headquartered in Wrocław, Poland. Their services include Custom Software Development and Web Development.

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  • Bitcoding solutions Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    50 - 249
    Surat, India

    Services provided

    10% Web Development
    15% AI Development
    10% Generative AI +11
    10% Mobile App Development
    10% UX/UI Design
    5% API Development
    5% Application Management & Support
    5% Custom Software Development
    5% DevOps Managed Services
    5% Logo
    5% Packaging Design
    5% Print Design
    5% Search Engine Optimization
    5% Web Design

    Focus Areas

    15% JavaScript
    20% Python
    15% XML +7
    10% HTML5
    10% Other programming & scripting languages
    10% jquery
    5% ASP.NET
    5% C#
    5% C++
    5% SQL

    Bitcoding solutions is a midsize artificial intelligence company. Founded in 2022, the team offers Artificial Intelligence and UX/UI Design.

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  • Alterera Logotype

    Alterera

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    50 - 249

    Services provided

    10% Web Development
    25% AI Agents
    20% IT Strategy Consulting +7
    10% AI Development
    10% Custom Software Development
    5% Cloud Consulting & SI
    5% E-Commerce Development
    5% Generative AI
    5% Mobile App Development
    5% UX/UI Design

    Focus Areas

    15% JavaScript
    20% Typescript
    10% C++ +9
    10% Java
    10% Rust
    5% Go
    5% HTML5
    5% Kotlin
    5% PHP
    5% Redux
    5% Ruby
    5% SQL

    Alterera is an AI Agents company founded in 2024. The agency offers AI Agents and IT strategy consulting.

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  • CS Technologies International Ltd Logotype

    CS Technologies International Ltd

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% BI & Big Data Consulting & SI
    15% Cloud Consulting & SI +4
    15% Custom Software Development
    15% Cybersecurity
    15% Web Design
    10% UX/UI Design

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C# +7
    10% HTML5
    10% Java
    10% Kotlin
    10% PHP
    10% Python
    10% Swift
    10% Typescript

    Web design agency CS Technologies International Ltd is headquartered in Paola, Malta. Founded in 2002, the team offers Web Design and BI & big data consulting & SI.

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  • Lucas Huls Media Logotype

    Not yet reviewed

    Undisclosed
    $50 - $99 / hr
    Freelancer
    Enschede, Netherlands

    Services provided

    40% Web Development
    30% Custom Software Development
    15% Mobile App Development +3
    5% API Development
    5% Other Application Development
    5% Wearable App Development

    Focus Areas

    10% JavaScript
    50% Typescript
    10% C# +4
    10% PHP
    10% SQL
    5% Java
    5% Python

    Founded in 2022, Lucas Huls Media, a small web development firm, is based in Enschede, Netherlands. Their services include Web Development and Custom Software Development.

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  • Verzel Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    50 - 249
    São Paulo, Brazil

    Services provided

    15% Web Development
    15% API Development
    15% Application Management & Support +4
    15% Custom Software Development
    15% IT Strategy Consulting
    15% Mobile App Development
    10% Enterprise App Modernization

    Focus Areas

    10% JavaScript
    10% C#
    10% HTML5 +10
    10% Kotlin
    10% Python
    10% SQL
    10% Typescript
    5% ASP.NET
    5% Java
    5% Other programming & scripting languages
    5% PHP
    5% Redux
    5% XML

    Verzel, an IT strategy consulting company, was established in 2010. The team provides IT strategy consulting and Custom Software Development and is based in São Paulo, Brazil and Berlin, Germany.

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  • Qloron Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    50 - 249
    Hyderabad, India

    Services provided

    10% Web Development
    25% IT Staff Augmentation
    15% Custom Software Development +8
    10% E-Commerce Development
    10% Mobile App Development
    5% Application Testing
    5% Blockchain
    5% CRM Consulting and SI
    5% DevOps Managed Services
    5% ERP Consulting and SI
    5% Generative AI

    Focus Areas

    15% JavaScript
    15% C#
    15% Java +6
    10% Kotlin
    10% Objective C
    10% Redux
    10% Swift
    10% Typescript
    5% Ember.js

    Qloron is an IT staff augmentation company. Established in 2019, the team offers IT staff augmentation and Custom Software Development. The company is located in Hyderabad, India.

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  • Precious Adedokun Logotype

    Precious Adedokun

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer

    Services provided

    20% Web Development
    20% Cloud Consulting & SI
    20% Mobile App Development +2
    20% Search Engine Optimization
    20% UX/UI Design

    Focus Areas

    30% JavaScript
    35% PHP
    35% Typescript

    SEO agency Precious Adedokun is headquartered in Lekki, Nigeria. They specialize in Search Engine Optimization and UX/UI Design and were launched in 2021.

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  • Monument Digital Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    20% JavaScript
    20% HTML5
    20% PHP +4
    10% AJAX
    10% Other programming & scripting languages
    10% SQL
    10% XML

    Monument Digital is a Digital Strategy company. They specialize in Digital Strategy and Content Marketing and are in Birmingham, England.

    Read more
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  • FL-Webdesign Logotype

    FL-Webdesign

    Not yet reviewed

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

    Services provided

    20% Web Development
    10% Conversion Optimization
    10% E-Commerce Development +6
    10% Graphic Design
    10% Logo
    10% Print Design
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    50% HTML5
    30% PHP +1
    10% SQL

    Established in 2011, FL-Webdesign is a small web development firm. Their team specializes in Web Development and Conversion Optimization.

    Read more
    View Profile
  • DevSnap Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Application Testing
    20% Generative AI +3
    20% IT Staff Augmentation
    20% Mobile App Development
    10% Low/No Code Development

    Focus Areas

    20% JavaScript
    20% Java
    20% Kotlin +2
    20% PHP
    20% Swift

    DevSnap is an IT staff augmentation company. The agency is based in Smyrna, Georgia and Atlanta, Pakistan. Their team provides IT staff augmentation and Web Development.

    Read more
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  • Studio Equinoxe Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    40% Mobile App Development
    25% E-Commerce Development +2
    10% AR/VR Development
    10% Custom Software Development

    Focus Areas

    10% JavaScript
    33% Kotlin
    31% Swift +6
    10% PHP
    5% AJAX
    5% SQL
    2% Java
    2% Objective C
    2% Python

    Studio Equinoxe is an app development company. They offer Mobile App Development and E-Commerce Development and are based in Paris, France.

    Read more
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  • Anuhya Digital Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    40% CRM Consulting and SI
    15% Cloud Consulting & SI +2
    15% Mobile App Development
    15% Web Design

    Focus Areas

    10% JavaScript
    50% Apex
    10% Java +3
    10% Other programming & scripting languages
    10% PHP
    10% Typescript

    Anuhya Digital is a CRM consulting and SI company based in Tirupati, India. The team focuses on CRM consulting and SI and cloud consulting & SI.

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Ability to deliver
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Clutch Leaders Matrix

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

1 xfive
2 ImageX
3 Brainhub
4 ATEAM SOFT SOLUTIONS
5 The Software House
6 Xmartlabs
7 Airdev
8 WPWeb Infotech
9 Lizard Global
10 Softonix
11 INOXOFT
12 PopArt Studio
13 GeekyAnts
14 Incora
15 SpdLoad

List of the Top 15 JavaScript Development Companies

  1. xfive Logotype

    xfive

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

    Ability to deliver

    39.9/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    70% Web Development
    50% JavaScript
    30% Other
    View Profile Visit Website
  2. ImageX Logotype

    ImageX

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

    Ability to deliver

    39.7/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

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

    Brainhub

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

    Ability to deliver

    39.5/40.0
    19.6/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    45% Web Development
    75% JavaScript
    55% Other
    View Profile Visit Website
  4. ATEAM SOFT SOLUTIONS Logotype

    ATEAM SOFT SOLUTIONS

    $10,000+
    < $25 / hr
    250 - 999
    Thiruvananthapuram, India

    Ability to deliver

    38.5/40.0
    19.2/20 Reviews
    10/10 Clients & Experience
    9.3/10 Market Presence

    Service focus

    50% Web Development
    50% JavaScript
    50% Other
    View Profile Visit Website
  5. The Software House Logotype

    The Software House

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

    Ability to deliver

    39.8/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    40% Web Development
    60% JavaScript
    60% Other
    View Profile Visit Website
  6. Xmartlabs Logotype

    Xmartlabs

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

    Ability to deliver

    39.5/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

    50% Web Development
    35% JavaScript
    50% Other
    View Profile Visit Website
  7. Airdev Logotype

    Airdev

    $10,000+
    Undisclosed
    50 - 249
    San Francisco, CA

    Ability to deliver

    38.7/40.0
    19.4/20 Reviews
    9.6/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  8. WPWeb Infotech Logotype

    WPWeb Infotech

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

    Ability to deliver

    39.7/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    65% Web Development
    20% JavaScript
    35% Other
    View Profile Visit Website
  9. Lizard Global Logotype

    Lizard Global

    $10,000+
    $50 - $99 / hr
    50 - 249
    Kuala Lumpur, Malaysia

    Ability to deliver

    39.3/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.3/10 Market Presence

    Service focus

    30% Web Development
    70% JavaScript
    70% Other
    View Profile Visit Website
  10. Softonix Logotype

    Softonix

    $5,000+
    $25 - $49 / hr
    50 - 249
    L'viv, Ukraine

    Ability to deliver

    36.5/40.0
    17.6/20 Reviews
    10/10 Clients & Experience
    8.9/10 Market Presence

    Service focus

    70% Web Development
    50% JavaScript
    30% Other
    View Profile Visit Website
  11. INOXOFT Logotype

    INOXOFT

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

    Ability to deliver

    39.8/40.0
    19.8/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  12. PopArt Studio Logotype

    PopArt Studio

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

    Ability to deliver

    39.7/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    35% Web Development
    40% JavaScript
    65% Other
    View Profile Visit Website
  13. GeekyAnts Logotype

    GeekyAnts

    $10,000+
    $25 - $49 / hr
    250 - 999
    San Francisco, CA

    Ability to deliver

    39.9/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    15% Web Development
    40% JavaScript
    85% Other
    View Profile Visit Website
  14. Incora Logotype

    Incora

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

    Ability to deliver

    37.6/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9/10 Market Presence

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  15. SpdLoad Logotype

    SpdLoad

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

    Ability to deliver

    36.8/40.0
    17/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    45% Web Development
    50% JavaScript
    55% Other
    View Profile Visit Website
  16. Brainium Information Technologies Logotype

    Brainium Information Technologies

    $10,000+
    < $25 / hr
    250 - 999
    Kolkata, India

    Ability to deliver

    36.7/40.0
    19.4/20 Reviews
    9/10 Clients & Experience
    8.4/10 Market Presence

    Service focus

    35% Web Development
    30% JavaScript
    65% Other
    View Profile Visit Website
  17. Toptal Logotype

    Toptal

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

    Ability to deliver

    38.7/40.0
    18.8/20 Reviews
    9.9/10 Clients & Experience
    10/10 Market Presence

    Service focus

    15% Web Development
    25% JavaScript
    85% Other
    View Profile Visit Website
  18. HTMLPanda Logotype

    HTMLPanda

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

    Ability to deliver

    35.9/40.0
    16.2/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  20. Techuz InfoWeb Pvt. Ltd. Logotype

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

    36.3/40.0
    16.6/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    60% Web Development
    45% JavaScript
    40% Other
    View Profile Visit Website
  21. PowerGate Software Logotype

    PowerGate Software

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

    Ability to deliver

    38.7/40.0
    19.2/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

    30% Web Development
    21% JavaScript
    70% Other
    View Profile Visit Website
  22. Experion Technologies Logotype

    Experion Technologies

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

    Ability to deliver

    36.9/40.0
    17.2/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    20% Web Development
    25% JavaScript
    80% Other
    View Profile Visit Website
  23. Scopic Logotype

    Scopic

    $10,000+
    $50 - $99 / hr
    250 - 999
    Marlborough, MA

    Ability to deliver

    38.7/40.0
    19/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    25% Web Development
    25% JavaScript
    75% Other
    View Profile Visit Website
  24. Arcanys Logotype

    Arcanys

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

    Ability to deliver

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

    Service focus

    30% Web Development
    20% JavaScript
    70% Other
    View Profile Visit Website
  25. Cleveroad Logotype

    Cleveroad

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

    Ability to deliver

    40/40.0
    20/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    28% Web Development
    15% JavaScript
    72% Other
    View Profile Visit Website
  26. Human Made Logotype

    Human Made

    $50,000+
    $150 - $199 / hr
    50 - 249
    Matlock, England

    Ability to deliver

    37.8/40.0
    18/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    100% Web Development
    30% JavaScript
    View Profile Visit Website
  27. Blazity Logotype

    Blazity

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

    Ability to deliver

    37.3/40.0
    18.2/20 Reviews
    10/10 Clients & Experience
    9.2/10 Market Presence

    Service focus

    50% Web Development
    70% JavaScript
    50% Other
    View Profile Visit Website
  28. Sigma Software Group Logotype

    Sigma Software Group

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

    Ability to deliver

    38/40.0
    18.2/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    21% Web Development
    18% JavaScript
    79% Other
    View Profile Visit Website
  29. Vangwe Logotype

    Vangwe

    $10,000+
    $50 - $99 / hr
    10 - 49
    Montevideo, Uruguay

    Ability to deliver

    38.3/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    8.9/10 Market Presence

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  30. Vincit Logotype

    Vincit

    $50,000+
    $150 - $199 / hr
    250 - 999
    Irvine, CA

    Ability to deliver

    36.2/40.0
    16.2/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    30% Web Development
    30% JavaScript
    70% 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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