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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: December 23, 2025
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15 Leaders 15 Contenders

21,451 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 87 reviews
    Premier Verified
    $5,000+
    $25 - $49 / hr
    50 - 249
    London, England

    Services provided

    50% Web Development
    50% Custom Software Development

    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), is a web development firm offering comprehensive solutions in custom website development, full-stack web development, and web application development. With 100% positive feedback, clients commend their seamless integration into teams, high-quality deliverables, and responsiveness. Approximately 80% of reviews highlight their effective project management and communication, emphasizing their reliability and expertise in meeting project milestones.

    See all 87 projects
    5 of 5 JavaScript reviews are 5 stars
    2 new reviews for JavaScript in past 6 months
    $10,000 – $49,000 avg. project cost

    JavaScript Experience

    Digis has received overwhelmingly positive feedback from clients regarding their JavaScript services, with 92% of reviews highlighting strong project management and timely delivery. Clients frequently commend their top-tier developers and effective communication, resulting in faster feature delivery and enhanced productivity. Notably, 100% of reviewers did not identify any areas for improvement. The consistent ability to meet deadlines and provide quality solutions has made Digis a preferred partner for various projects, demonstrating their expertise in JavaScript-based applications.

    Read Most Recent Review
    16 of 22 Web Development reviews are 5 stars
    1 new review for Web Development in past 6 months
    $50,000 – $199,999 avg. project cost

    Web Development PROJECT HIGHLIGHT

    Development Staff Augmentation for Online Cooking Platform

    5.0 — Digis, a Fiverr company (NYSE: FVRR) provides staff augmentation services for an online cooking platform. The team is fully integrated into the client's existing agile squads and contributes to the Read more
    Read 22 Reviews

    Industry Experience

    Digis has demonstrated strong expertise across several industries, notably manufacturing, information technology, media, and education. Clients highlighted their effective project management, timely delivery, and high-quality work. In manufacturing, Digis improved website functionality, enhancing user experience. In IT, they provided specialized development support, notably in Scala and React, leading to increased efficiency. Overall, client feedback reflects a positive sentiment, suggesting strong alignment for projects across these sectors.

    Read All Reviews

    Select Industry to see insights

    Human Resources Software Consulting Information technology Telecommunications Education Advertising & marketing Other industries Financial services eCommerce Retail Other Industry Automotive IT Services Energy & natural resources Gaming Transportation Business services Real estate Legal Arts, entertainment & music Manufacturing Media
    $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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  • WEB&APP Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    10 - 49
    Waunakee, WI

    Services provided

    10% Web Development
    20% E-Commerce Development
    20% Graphic Design +5
    10% Branding
    10% Logo
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    25% JavaScript
    40% PHP
    20% SQL +3
    5% AJAX
    5% C#
    5% XML

    WEB&APP is an e-commerce development firm. Based in Waunakee, Wisconsin, the agency was founded in 2016. Their services include E-Commerce Development and Graphic Design.

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  • Devseonet Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    10 - 49
    Luts'k, Ukraine

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% Mobile App Development +2
    20% UX/UI Design
    20% Web Design

    Focus Areas

    15% JavaScript
    15% PHP
    15% Swift +6
    10% AJAX
    10% Java
    10% Python
    10% SQL
    10% XML
    5% Other programming & scripting languages

    User experience design company Devseonet focuses on UX/UI Design and E-Commerce Development. They were founded in 2013.

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  • CodeAge Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% Digital Strategy
    15% Mobile App Development +4
    15% Search Engine Optimization
    15% UX/UI Design
    15% Web Design
    10% Pay Per Click

    Focus Areas

    20% JavaScript
    20% AJAX
    20% Other programming & scripting languages +2
    20% PHP
    20% XML

    CodeAge is an UX company. They are located in Islamabad, Pakistan and , and their services include UX/UI Design and Digital Strategy.

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  • Quantal Logotype

    Quantal

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Custom Software Development
    10% Mobile App Development +10
    10% UX/UI Design
    10% Web Design
    5% AI Development
    5% AR/VR Development
    5% Application Testing
    5% Blockchain
    5% E-Commerce Development
    5% Enterprise App Modernization
    5% IoT Development
    5% Wearable App Development

    Focus Areas

    25% JavaScript
    25% Ruby
    15% Objective C +3
    15% Swift
    10% C#
    10% Java

    Launched in 2014, Quantal is a custom software development firm. Headquartered in Ukraine, the team provides Custom Software Development and UX/UI Design.

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  • SoftShore Technology Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    40% Custom Software Development
    15% Web Design +3
    10% E-Commerce Development
    10% Mobile App Development
    5% Search Engine Optimization

    Focus Areas

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

    SoftShore Technology is a custom software development company founded in 2012. The team offers Custom Software Development and Web Development.

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  • Cromwell Technology Inc Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    10 - 49
    Manila, Philippines

    Services provided

    10% Web Development
    15% E-Commerce Development
    10% Custom Software Development +11
    10% UX/UI Design
    10% Web Design
    5% Application Testing
    5% Blockchain
    5% Graphic Design
    5% IT Managed Services
    5% IT Strategy Consulting
    5% Logo
    5% Mobile App Development
    5% Product Design
    5% Search Engine Optimization

    Focus Areas

    25% JavaScript
    25% C++
    25% Other programming & scripting languages +1
    25% PHP

    Cromwell Technology Inc is an e-commerce development company. The team is in Manila, Philippines, and their services include E-Commerce Development and Custom Software Development.

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  • Encyte Logotype

    Not yet reviewed

    $10,000+
    Undisclosed
    10 - 49
    Chadstone, Australia

    Services provided

    25% Web Development
    25% Mobile App Development
    20% Digital Strategy +3
    10% Business Consulting
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    20% PHP
    20% SQL +5
    10% C#
    10% C++
    10% Java
    10% Other programming & scripting languages
    10% Ruby

    Mobile app development firm Encyte is headquartered in Chadstone, Australia. They focus on Mobile App Development and Web Development.

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  • Global Rabbits Logotype

    Not yet reviewed

    $25,000+
    $25 - $49 / hr
    10 - 49
    Clinton, OH

    Services provided

    15% Web Development
    70% IT Staff Augmentation
    15% Mobile App Development

    Focus Areas

    20% JavaScript
    20% C#
    20% Java +2
    20% PHP
    20% Python

    Global Rabbits, an IT staff augmentation company, is based in Clinton, Ohio. Their services include IT staff augmentation and Mobile App Development.

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  • We Are Angular Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Cali, Colombia

    Services provided

    15% Web Development
    26% UX/UI Design
    15% Branding +7
    15% Custom Software Development
    10% Product Design
    5% Marketing Strategy
    5% Mobile App Development
    5% Web Design
    2% Conversion Optimization
    2% Social Media Marketing

    Focus Areas

    20% JavaScript
    35% Typescript
    20% Redux +4
    10% Python
    5% Kotlin
    5% SQL
    5% Swift

    We Are Angular, an UX company, was launched in 2016. The team provides UX/UI Design and Custom Software Development and is in Cali, Colombia and Cali, Colombia.

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  • XTel Software Solutions Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    10 - 49
    Hanoi, Vietnam

    Services provided

    15% Web Development
    15% Custom Software Development
    15% E-Commerce Development +6
    15% Mobile App Development
    10% Application Management & Support
    10% Application Testing
    10% Other Application Development
    5% CRM Consulting and SI
    5% ERP Consulting and SI

    Focus Areas

    20% JavaScript
    20% Java
    20% Other programming & scripting languages +4
    20% SQL
    10% PHP
    5% C#
    5% C++

    Founded in 2015, XTel Software Solutions is a software development company. Their services include Custom Software Development and E-Commerce Development.

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  • Knit Infotech Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Affiliate Marketing
    10% Content Marketing +7
    10% Conversion Optimization
    10% E-Commerce Development
    10% Email Marketing
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

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

    Knit Infotech is a small Content Marketing company founded in 2010. Their team focuses on Content Marketing and Email Marketing.

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  • Syncrayons Technologies Private Limited Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% E-Commerce Development
    10% Custom Software Development +6
    10% Mobile App Development
    10% Web Design
    5% Application Management & Support
    5% Graphic Design
    5% Product Design
    5% Social Media Marketing

    Focus Areas

    10% JavaScript
    30% PHP
    20% Python +4
    15% Typescript
    10% ColdFusion
    10% SQL
    5% AJAX

    Headquartered in Kazhakkoottam, India, Syncrayons Technologies Private Limited is a small e-commerce development firm. The team provides E-Commerce Development and Web Development.

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  • DeCrew Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Mobile App Development
    8% Custom Software Development +12
    8% E-Commerce Development
    8% Logo
    8% UX/UI Design
    8% Wearable App Development
    7% Web Design
    5% Advertising
    5% Application Management & Support
    5% Branding
    5% Mobile & App Marketing
    5% Product Design
    4% Marketing Strategy
    4% Social Media Marketing

    Focus Areas

    25% JavaScript
    25% Typescript
    10% Go +4
    10% Other programming & scripting languages
    10% Python
    10% Redux
    10% SQL

    DeCrew is an app development company located in Hyderabad, India. They focus on Mobile App Development and Web Development.

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  • Sahana System Pvt. Ltd. Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Mobile App Development
    25% UX/UI Design +2
    15% Branding
    10% AI Development

    Focus Areas

    10% JavaScript
    15% PHP
    10% Kotlin +10
    10% Objective C
    10% Python
    10% SQL
    10% Swift
    9% AJAX
    5% Typescript
    3% ASP.NET
    3% C#
    3% XML
    2% ASP

    Sahana System Pvt. Ltd. Is an UX company founded in 2012. Their services include UX/UI Design and Web Development.

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  • Hash Rekayasa Teknologi Logotype

    Not yet reviewed

    $10,000+
    < $25 / hr
    10 - 49
    Malang, Indonesia

    Services provided

    20% Web Development
    25% Custom Software Development
    20% IT Managed Services +2
    20% Mobile App Development
    15% Enterprise App Modernization

    Focus Areas

    15% JavaScript
    25% Go
    25% SQL +2
    25% Typescript
    10% Kotlin

    Hash Rekayasa Teknologi is a software development company. Founded in 2016, the team provides Custom Software Development and IT managed services.

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  • AppWorks Technologies Pvt Ltd Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    13% Low/No Code Development
    10% Web Design +15
    5% Application Management & Support
    5% Blockchain
    5% Corporate Training & Coaching
    5% E-Commerce Development
    5% ERP Consulting and SI
    5% Enterprise App Modernization
    5% Graphic Design
    5% IT Strategy Consulting
    5% Logistics & Supply Chain Consulting
    5% Logo
    5% Other Application Development
    5% Product Design
    5% UX/UI Design
    1% Custom Software Development
    1% Mobile App Development

    Focus Areas

    25% JavaScript
    25% AJAX
    25% Kotlin +1
    25% PHP

    AppWorks Technologies Pvt Ltd, a web design company, was launched in 2017. The firm provides Web Design and Web Development.

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  • SENiCTTECH SOLUTIONS Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    10 - 49
    Kuala Lumpur, Malaysia

    Services provided

    15% Web Development
    15% IT Managed Services
    10% Application Testing +8
    10% IT Strategy Consulting
    10% Mobile App Development
    10% Other Application Development
    10% Other IT Consulting and SI
    5% AI Development
    5% Cybersecurity
    5% E-Commerce Development
    5% IoT Development

    Focus Areas

    20% JavaScript
    20% Java
    20% Other programming & scripting languages +2
    20% PHP
    20% SQL

    SENiCTTECH SOLUTIONS, an IT managed services company, is located in Kuala Lumpur, Malaysia. They offer IT managed services and Web Development.

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  • TechGhor Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% Custom Software Development
    10% Content Marketing +8
    10% E-Commerce Development
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design
    5% Application Testing
    5% Digital Strategy
    5% Email Marketing

    Focus Areas

    25% JavaScript
    40% PHP
    35% AJAX

    TechGhor is a software development company based in Comilla, Bangladesh. They provide Custom Software Development and Social Media Marketing and were established in 2013.

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  • Mosaic Digital Group HK Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% Social Media Marketing
    15% UX/UI Design +6
    10% AR/VR Development
    10% E-Commerce Development
    10% Ecommerce Marketing
    10% Low/No Code Development
    10% Mobile App Development
    10% Web Design

    Focus Areas

    25% JavaScript
    25% PHP
    20% Java +4
    10% C++
    10% SQL
    5% Visual Basic
    5% XML

    Mosaic Digital Group HK is a Hong Kong, Hong Kong-based web development company. They focus on Web Development and Social Media Marketing and were founded in 2015.

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  • SmartBoxDigital Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    10 - 49
    Cluj-Napoca, Romania

    Services provided

    10% Web Development
    13% Low/No Code Development
    10% Custom Software Development +12
    10% E-Commerce Development
    10% Mobile App Development
    10% UX/UI Design
    5% AR/VR Development
    5% Application Testing
    5% Content Writing Services
    5% Document Digitization & Management
    5% Enterprise App Modernization
    5% IT Managed Services
    5% IT Strategy Consulting
    1% AI Development
    1% Other Application Development

    Focus Areas

    25% JavaScript
    15% Redux
    15% Typescript +7
    10% HTML5
    10% Python
    5% C++
    5% Elixir
    5% Ember.js
    5% SQL
    5% XML

    SmartBoxDigital, a web development firm, provides Web Development and UX/UI Design. The firm is located in Cluj-Napoca, Romania.

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  • DIMOTECH SOLUCOES EM TECNOLOGIA Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Chapecó, Brazil

    Services provided

    10% Web Development
    10% AI Development
    10% Custom Software Development +12
    10% IT Staff Augmentation
    10% Mobile App Development
    5% Application Management & Support
    5% Application Testing
    5% BI & Big Data Consulting & SI
    5% Cloud Consulting & SI
    5% IT Managed Services
    5% IT Strategy Consulting
    5% IoT Development
    5% Other Application Development
    5% Other IT Consulting and SI
    5% Robotics Process Automation

    Focus Areas

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

    DIMOTECH SOLUCOES EM TECNOLOGIA is an IT staff augmentation company. Launched in 2014, their team specializes in IT staff augmentation and Custom Software Development.

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  • WinDigital Logotype

    Not yet reviewed

    $25,000+
    $100 - $149 / hr
    10 - 49
    Wheat Ridge, CO

    Services provided

    10% Web Development
    20% Mobile App Development
    20% UX/UI Design +4
    15% Enterprise App Modernization
    15% Other Application Development
    10% Custom Software Development
    10% Low/No Code Development

    Focus Areas

    25% JavaScript
    20% Typescript
    15% HTML5 +4
    10% Python
    10% Ruby
    10% SQL
    10% Swift

    WinDigital is an UX design agency established in 2017. The small team offers UX/UI Design and Mobile App Development.

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  • StorexWeb Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    10 - 49
    Imola, Italy

    Services provided

    20% Web Development
    30% Custom Software Development
    25% Mobile App Development +2
    15% E-Commerce Development
    10% Application Testing

    Focus Areas

    15% JavaScript
    15% PHP
    15% SQL +7
    15% Typescript
    10% Kotlin
    10% Swift
    5% C#
    5% HTML5
    5% Java
    5% Python

    StorexWeb is a software development firm founded in 2017. Their services include Custom Software Development and Mobile App Development.

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  • Lensoft Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Nairobi, Kenya

    Services provided

    10% Web Development
    10% Advertising
    10% Digital Strategy +10
    10% Graphic Design
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design
    5% Content Marketing
    5% Ecommerce Marketing
    5% Email Marketing
    5% Logo
    5% Pay Per Click
    5% Print Design

    Focus Areas

    25% JavaScript
    35% PHP
    25% Java +1
    15% Python

    Headquartered in Nairobi, Kenya, Lensoft is an Advertising company. Their services include Advertising and Digital Strategy.

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  • SaaSify Labs Logotype

    SaaSify Labs

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Mobile App Development +3
    20% UX/UI Design
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    15% JavaScript
    15% Kotlin
    15% Objective C +6
    10% Python
    10% Redux
    10% SQL
    10% Swift
    10% Typescript
    5% Other programming & scripting languages

    SaaSify Labs is a consulting company specializing in business process optimization and e-commerce website design. Reviewers consistently praised their outstanding project management and responsiveness, with 100% satisfaction noted in user engagement and goal alignment. Their expertise and attention to detail are frequently highlighted as impressive attributes.

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  • Webkrafterz Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    25% Custom Software Development
    20% E-Commerce Development +3
    15% Mobile App Development
    10% API Development
    10% Application Management & Support

    Focus Areas

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

    Webkrafterz is a custom software development company launched in 2014. The company provides Custom Software Development and Web Development, and is small.

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  • The Legacy Logotype

    The Legacy

    Not yet reviewed

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

    Services provided

    15% Web Development
    30% Web Design
    15% Generative AI +3
    15% Logo
    15% Mobile App Development
    10% Branding

    Focus Areas

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

    In Kyiv, Ukraine, The Legacy is a small web design company. Their services include Web Design and Logo.

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  • Grid Reputation Logotype

    Grid Reputation

    Not yet reviewed

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

    Services provided

    10% Web Development
    25% Search Engine Optimization
    20% Back Office Outsourcing +3
    20% Pay Per Click
    15% Content Moderation Services
    10% Social Media Marketing

    Focus Areas

    25% JavaScript
    10% HTML5
    10% Other programming & scripting languages +10
    10% PHP
    10% Python
    10% Typescript
    5% Java
    5% SQL
    5% jquery
    3% Kotlin
    3% Redux
    2% AJAX
    2% Swift

    SEO services firm Grid Reputation is based in Kolkata, India. They focus on Search Engine Optimization and Pay Per Click.

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  • Artcode Pvt. Ltd. Logotype

    Not yet reviewed

    $10,000+
    $200 - $300 / hr
    10 - 49
    Pune, India

    Services provided

    10% Web Development
    20% Mobile App Development
    14% Low/No Code Development +9
    10% Custom Software Development
    10% Mobile & App Marketing
    10% Other Digital Marketing
    5% CRM Consulting and SI
    5% ERP Consulting and SI
    5% IT Strategy Consulting
    5% IoT Development
    5% UX/UI Design
    1% Web Design

    Focus Areas

    25% JavaScript
    30% SQL
    20% jquery +3
    15% Ember.js
    5% Redux
    5% Visual Basic

    Artcode Pvt. Ltd. Is a custom software development company. The Pune, India-based agency was founded in 2019. Their services include Custom Software Development and Mobile App Development.

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  • CnEL India Logotype

    CnEL India

    Not yet reviewed

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

    Services provided

    15% Web Development
    30% E-Commerce Development
    20% Mobile App Development +3
    15% API Development
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    20% JavaScript
    29% PHP
    15% jquery +3
    12% HTML5
    12% Typescript
    12% XML

    CnEL India is an e-commerce development firm. They were established in 2006, and their services include E-Commerce Development and Web Development.

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  • Edgeware Global Logotype

    Edgeware Global

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% Custom Software Development
    30% Staffing +3
    10% AI Development
    5% E-Commerce Development
    5% Mobile App Development

    Focus Areas

    25% JavaScript
    40% Python
    30% PHP +1
    5% Other programming & scripting languages

    Edgeware Global is a custom software development company. They provide Custom Software Development and Staffing and were launched in 2021.

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  • Inobi Solutions Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Mobile App Development
    15% AI Development +6
    15% Custom Software Development
    10% Microservices Architecture Services
    5% AI Consulting
    5% API Development
    5% AR/VR Development
    5% DevOps Managed Services

    Focus Areas

    15% JavaScript
    25% Typescript
    20% Python +5
    10% Go
    10% Swift
    10% jquery
    5% Kotlin
    5% Redux

    Website development firm Inobi Solutions is in București, Romania. They provide Web Development and Mobile App Development.

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  • Bluebolt Global Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    20% Branding
    20% Content Marketing +3
    15% Custom Software Development
    15% Email Marketing
    15% Search Engine Optimization

    Focus Areas

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

    Bluebolt Global is a Thrissur, India-based branding agency. Their services include Branding and Content Marketing.

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  • TOP Nepal International Pvt Ltd Logotype

    TOP Nepal International Pvt Ltd

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Conversion Optimization
    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

    25% JavaScript
    25% PHP
    15% HTML5 +5
    10% AJAX
    10% SQL
    5% C#
    5% Typescript
    5% XML

    In Kathmandu, Nepal, TOP Nepal International Pvt Ltd is a social media marketing agency. Their services include Social Media Marketing and Conversion Optimization.

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  • Xelent Solutions Logotype

    Xelent Solutions

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% Mobile App Development +3
    20% Social Media Marketing
    10% Custom Software Development
    10% Low/No Code Development

    Focus Areas

    15% JavaScript
    30% PHP
    20% Java +4
    10% HTML5
    10% SQL
    10% jquery
    5% Kotlin

    Xelent Solutions is a small social media marketing firm established in 2010. Their services include Social Media Marketing and Custom Software Development.

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  • Aarna Digital Technologies Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    10 - 49
    Needham, MA

    Services provided

    20% Web Development
    20% Mobile App Development
    20% Search Engine Optimization +3
    20% Social Media Marketing
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    15% JavaScript
    20% PHP
    20% SQL +4
    15% Apex
    10% Perl
    10% Python
    10% Ruby

    Launched in 2024, Aarna Digital Technologies is a social media marketing company. The team provides Social Media Marketing and Search Engine Optimization.

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  • BixoSoft Logotype

    Not yet reviewed

    $5,000+
    < $25 / hr
    10 - 49
    Faisalabad, Pakistan

    Services provided

    20% Web Development
    20% IT Staff Augmentation
    20% Mobile App Development +3
    20% Search Engine Optimization
    10% Custom Software Development
    10% Low/No Code Development

    Focus Areas

    15% JavaScript
    25% PHP
    15% Python +6
    15% Typescript
    10% SQL
    5% AJAX
    5% HTML5
    5% Redux
    5% jquery

    BixoSoft is a SEO company. Founded in 2017, the agency is based in Faisalabad, Pakistan. Their services include Search Engine Optimization and IT staff augmentation.

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  • Samprand Logotype

    Not yet reviewed

    $5,000+
    $150 - $199 / hr
    10 - 49
    Boston, MA

    Services provided

    10% Web Development
    10% AI Consulting
    10% AI Development +7
    10% API Development
    10% BI & Big Data Consulting & SI
    10% Custom Software Development
    10% Digital Engineering
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    25% JavaScript
    30% Python
    25% SQL +3
    10% Other programming & scripting languages
    5% PHP
    5% Typescript

    Established in 2023, Samprand is a web design agency. In Boston, Massachusetts and Madrid, Spain, the team focuses on Web Design and UX/UI Design.

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  • Apex Book Publishing Logotype

    Apex Book Publishing

    Not yet reviewed

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

    Services provided

    15% Web Development
    30% Mobile App Development
    20% Other Application Development +3
    15% API Development
    10% Custom Software Development
    10% E-Commerce Development

    Focus Areas

    20% JavaScript
    25% PHP
    25% SQL +3
    10% ASP.NET
    10% Java
    10% Python

    Apex Book Publishing is a mobile application development firm. In Austin, Texas, their small team provides Mobile App Development and Other Application Development. The agency was established in

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  • imicreation It services pvt ltd Logotype

    imicreation It services pvt ltd

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% E-Commerce Development
    20% UX/UI Design +2
    20% Web Design
    10% Graphic Design

    Focus Areas

    10% JavaScript
    35% AJAX
    25% SQL +3
    10% HTML5
    10% PHP
    10% jquery

    Imicreation It services pvt ltd is a small website development firm based in Faridabad, India and Mumbai, India. Their services include Web Development and E-Commerce Development.

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  • Nebula X Logotype

    Nebula X

    Not yet reviewed

    Undisclosed
    < $25 / hr
    10 - 49

    Services provided

    20% Web Development
    20% Blockchain
    20% Mobile App Development +2
    20% Search Engine Optimization
    20% UX/UI Design

    Focus Areas

    15% JavaScript
    30% Other programming & scripting languages
    15% Apex +3
    15% Ember.js
    15% Python
    10% Java

    Nebula X is a SEO services firm located in London, England. Launched in 2024, the team focuses on Search Engine Optimization and UX/UI Design.

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  • INNOTECHS Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Branding
    20% Business Consulting +2
    20% Digital Strategy
    20% Web Design

    Focus Areas

    15% JavaScript
    25% AJAX
    25% PHP +2
    25% SQL
    10% HTML5

    Branding agency INNOTECHS was founded in 2022. Headquartered in Bursa, Türkiye and Bursa, Türkiye, the team provides Branding and Digital Strategy.

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  • Wish Geeks Techserve Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Blockchain
    20% Cybersecurity +2
    20% Mobile App Development
    20% UX/UI Design

    Focus Areas

    15% JavaScript
    20% Objective C
    20% Swift +3
    20% Typescript
    15% Kotlin
    10% HTML5

    Wish Geeks Techserve is an UX design company. Established in 2024, the team focuses on UX/UI Design and Cybersecurity.

    Read more
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  • Ideafloats Technologies Logotype

    Ideafloats Technologies

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Cloud Consulting & SI
    20% Generative AI +2
    20% IT Staff Augmentation
    20% Mobile App Development

    Focus Areas

    15% JavaScript
    15% Go
    15% Typescript +7
    10% ASP.NET
    10% HTML5
    10% Python
    10% Rust
    5% Java
    5% Other programming & scripting languages
    5% Ruby

    Ideafloats Technologies is a cloud consulting & SI company. Located in Bengaluru, India, the company was founded in 2022. Their team focuses on cloud consulting & SI and IT staff augmentation.

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  • Web Karma Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Custom Software Development
    25% E-Commerce Development +2
    15% UX/UI Design
    10% Social Media Marketing

    Focus Areas

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

    Web Karma is a software development firm. The team specializes in Custom Software Development and Web Development and is based in Roorkee, India.

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  • Tegimus Infotech Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% API Development
    25% Custom Software Development +1
    25% Mobile App Development

    Focus Areas

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

    Tegimus Infotech is a small custom software development firm in Kannur, India. The team provides Custom Software Development and Web Development.

    Read more
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  • SoftWeirdo Solution Logotype

    SoftWeirdo Solution

    Not yet reviewed

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

    Services provided

    25% Web Development
    50% Blockchain
    25% Mobile App Development

    Focus Areas

    10% JavaScript
    50% Other programming & scripting languages
    15% Python +3
    10% Redux
    10% Typescript
    5% HTML5

    Founded in 2022, SoftWeirdo Solution is a Blockchain company. Their services include Blockchain and Web Development.

    Read more
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  • YANTRADHIGAM LABS PRIVATE LIMITED Logotype

    YANTRADHIGAM LABS PRIVATE LIMITED

    Not yet reviewed

    Undisclosed
    < $25 / hr
    10 - 49

    Services provided

    20% Web Development
    20% CRM Consulting and SI
    20% ERP Consulting and SI +2
    20% IT Strategy Consulting
    20% Mobile App Development

    Focus Areas

    15% JavaScript
    30% Python
    20% Typescript +3
    15% Redux
    10% HTML5
    10% Java

    YANTRADHIGAM LABS PRIVATE LIMITED, an IT strategy consulting company, is based in Ahmedabad, India. Launched in 2019, the team specializes in IT strategy consulting and CRM consulting and SI.

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  • Logic Jumps Logotype

    Logic Jumps

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% Graphic Design +2
    20% Search Engine Optimization
    20% UX/UI Design

    Focus Areas

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

    Logic Jumps is a SEO services firm. They are headquartered in Lahore, Pakistan, and their services include Search Engine Optimization and UX/UI Design.

    Read more
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  • Digital Juice Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    15% Custom Software Development
    15% Performance Marketing +4
    15% Search Engine Optimization
    15% UX/UI Design
    10% Mobile App Development
    10% Social Media Marketing

    Focus Areas

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

    Digital Juice, a website development firm, provides Web Development and Custom Software Development. The firm is based in Warszawa, Poland.

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We evaluate service providers using a structured methodology that combines:

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

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Ability to deliver
Focus
Clutch Leaders Matrix

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

1 Brainhub
2 xfive
3 ImageX
4 The Software House
5 ATEAM SOFT SOLUTIONS
6 Airdev
7 Xmartlabs
8 Toptal
9 Softonix
10 INOXOFT
11 Lizard Global
12 PopArt Studio
13 GeekyAnts
14 SpdLoad
15 Techuz InfoWeb Pvt. Ltd.

List of the Top 15 JavaScript Development Companies

  1. Brainhub Logotype

    Brainhub

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

    Ability to deliver

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

    Service focus

    50% Web Development
    70% JavaScript
    50% Other
    View Profile Visit Website
  2. 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
  3. 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
  4. The Software House Logotype

    The Software House

    $10,000+
    $50 - $99 / hr
    50 - 249
    Gliwice, Poland

    Ability to deliver

    39.4/40.0
    19.6/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    45% Web Development
    60% JavaScript
    55% Other
    View Profile Visit Website
  5. ATEAM SOFT SOLUTIONS Logotype

    ATEAM SOFT SOLUTIONS

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

    Ability to deliver

    37.7/40.0
    18.4/20 Reviews
    10/10 Clients & Experience
    9.3/10 Market Presence

    Service focus

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

    Airdev

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

    Ability to deliver

    38.9/40.0
    19.6/20 Reviews
    9.6/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  7. Xmartlabs Logotype

    Xmartlabs

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

    Ability to deliver

    39.3/40.0
    19.8/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

    50% Web Development
    35% JavaScript
    50% Other
    View Profile Visit Website
  8. Toptal Logotype

    Toptal

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

    Ability to deliver

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

    Service focus

    15% Web Development
    25% JavaScript
    85% Other
    View Profile Visit Website
  9. Softonix Logotype

    Softonix

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

    Ability to deliver

    36.9/40.0
    18/20 Reviews
    10/10 Clients & Experience
    8.9/10 Market Presence

    Service focus

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

    INOXOFT

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

    Ability to deliver

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

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  11. 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
  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. 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
  15. Techuz InfoWeb Pvt. Ltd. Logotype

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

    36.8/40.0
    17.2/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    60% Web Development
    45% JavaScript
    40% Other
    View Profile Visit Website
  16. 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
  17. Sigma Software Group Logotype

    Sigma Software Group

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

    Ability to deliver

    38.8/40.0
    19/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

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

    Incora

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

    Ability to deliver

    37.2/40.0
    18.2/20 Reviews
    10/10 Clients & Experience
    9/10 Market Presence

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  20. 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

    30% Web Development
    15% JavaScript
    70% Other
    View Profile Visit Website
  21. Brainium Information Technologies Logotype

    Brainium Information Technologies

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

    Ability to deliver

    36.3/40.0
    19/20 Reviews
    9/10 Clients & Experience
    8.4/10 Market Presence

    Service focus

    35% Web Development
    30% JavaScript
    65% Other
    View Profile Visit Website
  22. WPWeb Infotech Logotype

    WPWeb Infotech

    $5,000+
    < $25 / hr
    50 - 249
    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
  23. 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
  24. Human Made Logotype

    Human Made

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

    Ability to deliver

    38.2/40.0
    18.4/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    100% Web Development
    30% JavaScript
    View Profile Visit Website
  25. Probey Services Logotype

    Probey Services

    $1,000+
    < $25 / hr
    1,000 - 9,999
    Los Angeles, CA

    Ability to deliver

    36.9/40.0
    19.6/20 Reviews
    9.3/10 Clients & Experience
    8/10 Market Presence

    Service focus

    20% Web Development
    25% JavaScript
    80% Other
    View Profile Visit Website
  26. Blazity Logotype

    Blazity

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

    Ability to deliver

    37.8/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9.2/10 Market Presence

    Service focus

    50% Web Development
    70% JavaScript
    50% Other
    View Profile Visit Website
  27. XWP Logotype

    XWP

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

    Ability to deliver

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

    Service focus

    60% Web Development
    45% JavaScript
    40% Other
    View Profile Visit Website
  28. Vincit Logotype

    Vincit

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

    Ability to deliver

    36.4/40.0
    16.4/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    30% Web Development
    30% JavaScript
    70% Other
    View Profile Visit Website
  29. PowerGate Software Logotype

    PowerGate Software

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

    Ability to deliver

    37.9/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9.3/10 Market Presence

    Service focus

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

    Arcanys

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

    Ability to deliver

    38.1/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    8.7/10 Market Presence

    Service focus

    30% Web Development
    20% 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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