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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: February 8, 2026
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15 Leaders 15 Contenders

21,635 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 88 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), excels in providing comprehensive web development and staff augmentation services. With a focus on custom website development, front-end and back-end development, they consistently deliver high-quality projects, demonstrating 100% positive feedback for their technical expertise and effective project management. Clients frequently highlight their reliability and seamless integration into existing teams, with 80% mentioning their exceptional communication skills and adaptability.

    See all 88 projects
    6 of 6 reviews are 5 stars
    1 new review for Web Development services
    $10,000 – $49,000 avg. project cost

    Reviewed 6 times in the past 6 months

    Recent reviews of Digis, a Fiverr company (NYSE: FVRR), reflect a consistently positive sentiment among clients. Clients praised their responsiveness, effective communication, and ability to meet project milestones. For instance, a CEO noted the quick onboarding of talent and achievement of beta milestones, while an Engineering Manager highlighted a 25% reduction in bug backlog due to Digis' support. Overall, clients reported satisfaction with timely deliverables and high-quality work, with no significant areas for improvement identified.
    Read 6 Recent Reviews
    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

    Client feedback on Digis's JavaScript services reflects a high level of satisfaction, with 95% of reviews being positive. Many clients praised the expertise of their developers, particularly in frontend and full-stack development, noting timely delivery and effective communication as key strengths. Specific feedback highlighted significant improvements in project efficiency and feature development. Additionally, clients appreciated the agency's ability to provide skilled engineers quickly, confirming Digis as a reliable partner in enhancing their software solutions.

    Read Most Recent Review

    Average Project Cost Breakdown

    $10,000 to $49,000 (24) $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

    Client feedback on Digis highlights a strong sentiment regarding cost-effectiveness and value for money. Many clients noted that Digis offered competitive pricing while delivering quality work, with comments like "pricing fit our budget" and "good value for cost". Clients appreciated the alignment of company values, effective communication, and timely delivery, suggesting a reliable partnership. Overall, Digis is perceived as a cost-effective solution that meets client expectations without compromising on quality.
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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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  • nlpc Logotype

    Not yet reviewed

    $5,000+
    Undisclosed
    2 - 9
    Berlin, Germany

    Services provided

    24% Web Development
    33% IT Strategy Consulting
    33% UX/UI Design +1
    10% Low/No Code Development

    Focus Areas

    33% JavaScript
    34% Typescript
    33% PHP

    Nlpc is a small Berlin, Germany-based web development firm. Their services include Web Development and UX/UI Design.

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  • Web Accessibility Expert Logotype

    Web Accessibility Expert

    Not yet reviewed

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

    Services provided

    30% Web Development
    30% Other IT Consulting and SI
    10% Application Testing +3
    10% Compliance Consulting
    10% Mobile App Development
    10% Other Application Development

    Focus Areas

    20% JavaScript
    50% HTML5
    20% Typescript +1
    10% PHP

    Web Accessibility Expert is an other IT consulting and SI company headquartered in Dehradun, India. They focus on other IT consulting and SI and Web Development.

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  • Inetis Ltd Logotype

    5.0 1 review
    $10,000+
    $100 - $149 / hr
    2 - 9
    Celje, Slovenia

    Services provided

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

    Focus Areas

    20% JavaScript
    20% Java
    10% C# +6
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% SQL
    5% C++
    5% jquery

    Inetis Ltd specializes in Website Development and Web Design, offering professional support and reliable execution. Clients appreciate their effective project management, timely delivery, and easy-to-use software solutions. The company's professionalism and understanding of client needs are frequently highlighted, contributing to increased website traffic and value-added features such as configurators and ticketing systems.

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  • New Edge Media Ltd Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    2 - 9
    Pitsford, England

    Services provided

    25% Web Development
    25% Web Design
    10% Content Marketing +4
    10% Conversion Optimization
    10% Digital Strategy
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    15% JavaScript
    25% PHP
    15% Other programming & scripting languages +4
    15% Visual Basic
    10% Java
    10% SQL
    10% XML

    New Edge Media Ltd is a web design agency. Located in Pitsford, England, their small team specializes in Web Design and Web Development. The company was launched in 2004.

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  • Digital Triumphs Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9
    Dubai, United Arab Emirates

    Services provided

    30% Web Development
    30% Search Engine Optimization
    20% Pay Per Click +1
    20% Social Media Marketing

    Focus Areas

    10% JavaScript
    30% PHP
    20% Python +4
    10% Java
    10% Ruby
    10% SQL
    10% XML

    SEO company Digital Triumphs was founded in 2018. Located in Dubai, United Arab Emirates, the team offers Search Engine Optimization and Web Development.

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  • Off The Peg Design Ltd Logotype

    Not yet reviewed

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

    Services provided

    30% Web Development
    40% Web Design
    30% Search Engine Optimization

    Focus Areas

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

    Web design company Off The Peg Design Ltd was established in 2000. The company offers Web Design and Search Engine Optimization, and is small.

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  • Tech India Infotech Logotype

    Tech India Infotech

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Digital Strategy
    20% Market Research +7
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design
    5% Advertising
    5% Branding
    5% IT Strategy Consulting
    5% Pay Per Click

    Focus Areas

    20% JavaScript
    20% ASP.NET
    20% PHP +4
    10% AJAX
    10% ASP
    10% Apex
    10% SQL

    Tech India Infotech, a Digital Strategy company, was founded in 2012. They focuses on Digital Strategy and Market Research.

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  • Atypical Software Pvt Ltd Logotype

    Atypical Software Pvt Ltd

    5.0 1 review
    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

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

    Focus Areas

    15% JavaScript
    50% PHP
    25% AJAX +2
    5% HTML5
    5% jquery

    ATYPICAL SOFTWARE PRIVATE LIMITED is a cutting-edge technology company specializing in innovative software solutions, web development, and digital transformation. We help businesses enhance their

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  • Fide-Soft P.S.A. Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% Custom Software Development
    20% Mobile App Development +4
    10% E-Commerce Development
    10% Enterprise App Modernization
    5% ERP Consulting and SI
    5% IT Strategy Consulting

    Focus Areas

    25% JavaScript
    25% Java
    20% Other programming & scripting languages +2
    20% SQL
    10% Python

    Founded in 2020, Fide-Soft P.S.A. Is a small Warszawa, Poland-based software development company. Their team provides Custom Software Development and Mobile App Development.

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  • Computing Future Tech Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% E-Commerce Development
    20% Custom Software Development +2
    15% AI Development
    15% Mobile App Development

    Focus Areas

    15% JavaScript
    15% HTML5
    15% Java +4
    15% Kotlin
    15% PHP
    15% Python
    10% jquery

    Computing Future Tech is an e-commerce development firm. The small Lahore, Pakistan-based team provides E-Commerce Development and Custom Software Development. The agency was established in 2023.

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  • RANESO GLOBAL PRIVATE LIMITED Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    10 - 49
    Ranchi, India

    Services provided

    10% Web Development
    40% ERP Consulting and SI
    20% Custom Software Development +3
    10% E-Commerce Development
    10% Low/No Code Development
    10% Mobile App Development

    Focus Areas

    20% JavaScript
    20% PHP
    20% Python +5
    15% SQL
    10% C++
    5% HTML5
    5% Other programming & scripting languages
    5% jquery

    RANESO GLOBAL PRIVATE LIMITED is an ERP consulting and SI company established in 2019. The agency provides ERP consulting and SI and Custom Software Development.

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  • Data Titan Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% IT Strategy Consulting +3
    20% Mobile App Development
    10% Custom Software Development
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    20% PHP
    10% ASP.NET +6
    10% C#
    10% C++
    10% Java
    10% Objective C
    10% Python
    10% SQL

    Data Titan is an IT strategy consulting company launched in 2011. The company provides IT strategy consulting and Custom Software Development.

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  • TechnoGenix Solutions Logotype

    TechnoGenix Solutions

    Not yet reviewed

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

    Services provided

    15% Web Development
    35% Custom Software Development
    10% AI Development +6
    10% E-Commerce Development
    10% Mobile App Development
    5% AR/VR Development
    5% Business Consulting
    5% Marketing Strategy
    5% Social Media Marketing

    Focus Areas

    15% JavaScript
    20% Typescript
    10% HTML5 +7
    10% Kotlin
    10% Python
    10% Redux
    10% SQL
    5% Objective C
    5% Swift
    5% XML

    Software development firm TechnoGenix Solutions is headquartered in Dhaka, Bangladesh. They provide Custom Software Development and Web Development and were established in 2024.

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  • PSIWARE™ Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    10 - 49
    Rosario, Argentina

    Services provided

    15% Web Development
    25% Custom Software Development
    20% Blockchain +4
    10% Mobile App Development
    10% Other Application Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    15% JavaScript
    20% PHP
    15% Java +4
    15% Other programming & scripting languages
    15% Typescript
    10% HTML5
    10% SQL

    Custom software development firm PSIWARE™ specializes in Custom Software Development and Blockchain. They are headquartered in Rosario, Argentina.

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  • LimeLight Galaxy Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    10 - 49
    Quakers Hill, Australia

    Services provided

    25% Web Development
    30% Search Engine Optimization
    20% Social Media Marketing +2
    15% Pay Per Click
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    40% PHP
    30% SQL +2
    10% C++
    10% Java

    LimeLight Galaxy is a website development company. Headquartered in Quakers Hill, Australia, the team provides Web Development and Search Engine Optimization.

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  • AppWorld Infotech Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    40% Mobile App Development
    20% Custom Software Development +2
    10% Cloud Consulting & SI
    10% UX/UI Design

    Focus Areas

    15% JavaScript
    30% SQL
    15% Kotlin +5
    15% PHP
    10% Java
    5% AJAX
    5% Other programming & scripting languages
    5% Typescript

    Application development company AppWorld Infotech focuses on Mobile App Development and Custom Software Development. They were established in 2017.

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  • Cloud Solutions Global Logotype

    Cloud Solutions Global

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Custom Software Development
    15% Search Engine Optimization +5
    15% UX/UI Design
    10% BI & Big Data Consulting & SI
    10% Low/No Code Development
    10% Mobile App Development
    10% Web Design

    Focus Areas

    20% JavaScript
    10% AJAX
    10% HTML5 +6
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% SQL
    10% XML
    10% jquery

    Headquartered in Dubai, United Arab Emirates, Cloud Solutions Global is a software development firm. They focus on Custom Software Development and Search Engine Optimization and were founded in

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  • Haclab Company Limited Logotype

    Not yet reviewed

    $5,000+
    < $25 / hr
    2 - 9
    Kampala, Uganda

    Services provided

    33% Web Development
    34% Custom Software Development
    33% Web Design

    Focus Areas

    10% JavaScript
    30% PHP
    30% SQL +2
    20% Java
    10% Visual Basic

    Established in 2015, Haclab Company Limited is a small custom software development company. Their team offers Custom Software Development and Web Design.

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  • DBD Tech Logotype

    DBD Tech

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% Mobile App Development
    30% Custom Software Development +2
    10% API Development
    10% Other Application Development

    Focus Areas

    15% JavaScript
    15% C#
    15% PHP +9
    15% SQL
    5% C
    5% C++
    5% Delphi
    5% Java
    5% Kotlin
    5% Other programming & scripting languages
    5% Typescript
    5% XML

    DBD Tech, a mobile app development company, was founded in 2012. The firm specializes in Mobile App Development and Custom Software Development.

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  • KONZE Enterprise Pty Ltd Logotype

    Not yet reviewed

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

    Services provided

    11% Web Development
    12% Search Engine Optimization
    11% CRM Consulting and SI +6
    11% Graphic Design
    11% Mobile App Development
    11% Pay Per Click
    11% Social Media Marketing
    11% UX/UI Design
    11% Web Design

    Focus Areas

    11% JavaScript
    12% ASP.NET
    12% XML +6
    11% C#
    11% HTML5
    11% Java
    11% PHP
    11% jquery
    10% SQL

    KONZE Enterprise Pty Ltd, a SEO services firm, was established in 2018. The company offers Search Engine Optimization and Social Media Marketing, and is midsize.

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  • Walsoft Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    20% Mobile App Development
    15% Custom Software Development +5
    15% E-Commerce Development
    10% Enterprise App Modernization
    10% Search Engine Optimization
    10% Social Media Marketing
    5% IoT Development

    Focus Areas

    15% JavaScript
    15% Other programming & scripting languages
    15% PHP +4
    15% Python
    15% SQL
    15% XML
    10% Swift

    Walsoft is a mobile application development firm. The team provides Mobile App Development and Custom Software Development and is headquartered in New Delhi, India.

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  • NXT Soft s.r.o Logotype

    Not yet reviewed

    $25,000+
    $25 - $49 / hr
    10 - 49
    Košice, Slovakia

    Services provided

    20% Web Development
    30% Custom Software Development
    20% IT Staff Augmentation +2
    15% Application Management & Support
    15% Application Testing

    Focus Areas

    15% JavaScript
    25% C#
    10% ASP.NET +7
    10% Java
    10% Other programming & scripting languages
    10% SQL
    5% C
    5% C++
    5% Typescript
    5% Visual Basic

    NXT Soft s.r.o is a software development firm located in Košice, Slovakia. Their services include Custom Software Development and IT staff augmentation.

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  • BuildwithParadox - Prashant Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    Freelancer
    New Delhi, India

    Services provided

    20% Web Development
    20% BI & Big Data Consulting & SI
    20% Cybersecurity +2
    20% Mobile App Development
    20% UX/UI Design

    Focus Areas

    50% JavaScript
    50% Java

    BuildwithParadox - Prashant is an UX agency launched in 2025. Headquartered in New Delhi, India, the team specializes in UX/UI Design and BI & big data consulting & SI.

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  • Hiray Media and Technology Pvt Ltd Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    45% Back Office Outsourcing
    10% Custom Software Development +5
    10% ERP Consulting and SI
    10% IT Managed Services
    5% Mobile App Development
    5% Search Engine Optimization
    5% Social Media Marketing

    Focus Areas

    15% JavaScript
    30% PHP
    10% HTML5 +7
    10% SQL
    10% jquery
    5% ASP.NET
    5% Java
    5% Kotlin
    5% Python
    5% Visual Basic

    Hiray Media and Technology Pvt Ltd, a Back Office Outsourcing company, was founded in 2015. The team offers Back Office Outsourcing and ERP consulting and SI.

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  • Intralogic IT Solutions Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% E-Commerce Development
    20% Web Design +4
    10% Graphic Design
    10% Logo
    10% Mobile App Development
    10% UX/UI Design

    Focus Areas

    15% JavaScript
    50% Typescript
    20% SQL +1
    15% PHP

    Intralogic IT Solutions is an e-commerce development firm. Launched in 2020, the team provides E-Commerce Development and Web Design.

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  • Pallaton Technologies Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Blockchain
    10% AR/VR Development +11
    10% Custom Software Development
    5% Branding
    5% Content Marketing
    5% E-Commerce Development
    5% Email Marketing
    5% Graphic Design
    5% Mobile App Development
    5% Search Engine Optimization
    5% Social Media Marketing
    5% UX/UI Design
    5% Web Design

    Focus Areas

    28% JavaScript
    22% PHP
    17% Java +3
    17% Python
    10% Kotlin
    6% Swift

    Launched in 2013, Pallaton Technologies is a Blockchain company. The team offers Blockchain and Custom Software Development and is located in Pune, India.

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  • NEOFOX Logotype

    Not yet reviewed

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

    Services provided

    12% Web Development
    15% IoT Development
    13% AI Development +9
    10% Mobile App Development
    9% Cloud Consulting & SI
    8% Graphic Design
    8% Web Design
    6% UX/UI Design
    5% CRM Consulting and SI
    5% Content Marketing
    5% Social Media Marketing
    4% IT Managed Services

    Focus Areas

    15% JavaScript
    20% Other programming & scripting languages
    15% Python +6
    10% C
    10% SQL
    8% Go
    8% Java
    8% PHP
    6% Kotlin

    Established in 2020, NEOFOX is a small IoT development company. Their services include IoT development and Artificial Intelligence.

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  • DFC Consultants Logotype

    Not yet reviewed

    Undisclosed
    $100 - $149 / hr
    10 - 49
    Fargo, ND

    Services provided

    10% Web Development
    55% ERP Consulting and SI
    20% Custom Software Development +1
    15% Accounting

    Focus Areas

    25% JavaScript
    40% SQL
    25% C++ +1
    10% XML

    DFC Consultants is an ERP consulting and SI company based in Fargo, North Dakota and Bismarck, North Dakota. They provide ERP consulting and SI and Custom Software Development.

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  • Make IT Solutions Logotype

    Not yet reviewed

    $10,000+
    $100 - $149 / hr
    10 - 49
    Calgary, Canada

    Services provided

    20% Web Development
    20% Application Management & Support
    20% Custom Software Development +2
    20% E-Commerce Development
    20% Enterprise App Modernization

    Focus Areas

    15% JavaScript
    15% Java
    10% AJAX +7
    10% C#
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    5% Perl
    5% XML

    Make IT Solutions, a software development firm, focuses on Custom Software Development and Enterprise App Modernization. The agency is headquartered in Calgary, Canada and Yukon, Canada.

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  • BoxCrush Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    10 - 49
    Indianapolis, IN

    Services provided

    15% Web Development
    20% UX/UI Design
    15% Content Marketing +4
    15% Custom Software Development
    15% Web Design
    10% Pay Per Click
    10% Search Engine Optimization

    Focus Areas

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

    Launched in 2002, BoxCrush is an UX company. The small team offers UX/UI Design and Content Marketing.

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  • WowSystems Logotype

    WowSystems

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Mobile App Development
    15% UX/UI Design +3
    15% Web Design
    10% Custom Software Development
    10% Enterprise App Modernization

    Focus Areas

    10% JavaScript
    15% Objective C
    15% PHP +8
    10% C#
    10% C++
    10% Java
    10% SQL
    5% Other programming & scripting languages
    5% Python
    5% Swift
    5% Visual Basic

    Headquartered in London, England and Lisbon, Portugal, WowSystems is an app development firm. They offer Mobile App Development and Web Development and were established in 2008.

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  • Infognana Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    250 - 999
    Coimbatore, India

    Services provided

    10% Web Development
    10% Branding
    10% Content Marketing +7
    10% Custom Software Development
    10% Digital Strategy
    10% E-Commerce Development
    10% Email Marketing
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    10% AJAX
    10% ASP.NET +7
    10% C#
    10% Java
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% XML

    Infognana Solutions is a branding firm. Headquartered in Coimbatore, India, their midsize team offers Branding and Digital Strategy. The company was established in 2000.

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  • Tugboat Group Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    25% Graphic Design
    20% Branding +3
    15% Marketing Strategy
    15% Web Design
    10% Digital Strategy

    Focus Areas

    20% JavaScript
    30% PHP
    10% AJAX +5
    10% ASP
    10% ASP.NET
    10% Java
    5% Other programming & scripting languages
    5% Perl

    Established in 1998, Tugboat Group is a graphic design agency. Based in Vancouver, Canada, the team provides Graphic Design and Branding.

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  • 4LIFE Innovations Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Web Design
    13% E-Commerce Development +4
    12% Mobile App Development
    10% Graphic Design
    10% Search Engine Optimization
    5% Content Marketing

    Focus Areas

    10% JavaScript
    50% PHP
    20% Objective C +2
    10% C
    10% Other programming & scripting languages

    4LIFE Innovations is a web design agency. They specialize in Web Design and Web Development and were established in 2016.

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  • 7digits Logotype

    Not yet reviewed

    $10,000+
    $100 - $149 / hr
    10 - 49
    Budapest, Hungary

    Services provided

    15% Web Development
    20% Pay Per Click
    10% Content Marketing +8
    10% Conversion Optimization
    10% Email Marketing
    10% Web Design
    5% Digital Strategy
    5% E-Commerce Development
    5% Marketing Strategy
    5% Other Digital Marketing
    5% Video Production

    Focus Areas

    20% JavaScript
    40% PHP
    10% Other programming & scripting languages +5
    10% Ruby
    5% AJAX
    5% Apex
    5% Java
    5% SQL

    7digits is a PPC agency. The agency is in Budapest, Hungary. Their team specializes in Pay Per Click and Web Development.

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  • DiRoots Logotype

    Not yet reviewed

    $5,000+
    Undisclosed
    10 - 49
    Guimarães, Portugal

    Services provided

    25% Web Development
    50% Custom Software Development
    10% Application Testing +3
    5% Application Management & Support
    5% Enterprise App Modernization
    5% Other Application Development

    Focus Areas

    10% JavaScript
    50% C#
    20% ASP.NET +2
    10% C++
    10% HTML5

    DiRoots, a software development company, was established in 2017. The team offers Custom Software Development and Web Development and is based in Guimarães, Portugal.

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  • Nifty Websites Australia Logotype

    Nifty Websites Australia

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% E-Commerce Development
    25% IT Managed Services +1
    25% Web Design

    Focus Areas

    10% JavaScript
    20% PHP
    20% Python +3
    20% Ruby
    20% SQL
    10% HTML5

    Web design agency Nifty Websites Australia was launched in 2020. Based in Sydney Olympic Park, Australia, the team offers Web Design and IT managed services.

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  • TBL TECH NERDS Logotype

    TBL TECH NERDS

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    12% JavaScript
    24% Objective C
    24% Swift +2
    22% Kotlin
    18% PHP

    TBL TECH NERDS is an application development company. The Boulder, Colorado-based team specializes in Mobile App Development and Web Design.

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  • AppUnik Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    10% AI Development
    10% Custom Software Development +9
    10% E-Commerce Development
    10% Generative AI
    10% Mobile App Development
    10% UX/UI Design
    5% AR/VR Development
    5% Graphic Design
    5% Other Application Development
    5% Wearable App Development
    5% Web Design

    Focus Areas

    17% JavaScript
    17% Swift
    11% ASP.NET +6
    11% C#
    11% Java
    11% SQL
    10% Kotlin
    6% AJAX
    6% Other programming & scripting languages

    AppUnik is a web development firm based in Ahmedabad, India. They focus on Web Development and UX/UI Design.

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  • Allventures Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% API Development
    30% Mobile App Development +3
    10% AR/VR Development
    5% Application Testing
    5% Social Media Marketing

    Focus Areas

    11% JavaScript
    12% AJAX
    11% HTML5 +6
    11% Other programming & scripting languages
    11% PHP
    11% Python
    11% SQL
    11% Typescript
    11% jquery

    Allventures is a mobile application development company. The Kraków, Poland-based company was established in 2022. Their team specializes in Mobile App Development and API Development.

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  • Code 95 Logotype

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

    Services provided

    30% Web Development
    30% Web Design
    20% E-Commerce Development +1
    20% UX/UI Design

    Focus Areas

    20% JavaScript
    20% C#
    20% PHP +3
    20% SQL
    10% ASP
    10% XML

    Code 95 specializes in Website Development and Web Design, offering comprehensive services including development, design, infrastructure, and maintenance on platforms like WordPress. Reviews highlight the company’s efficiency, creativity, and strong project management, with clients particularly appreciating their responsiveness, punctuality, and innovative solutions.

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  • Apex Code Solutions Logotype

    Not yet reviewed

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

    Services provided

    34% Web Development
    33% Custom Software Development
    33% Mobile App Development

    Focus Areas

    10% JavaScript
    30% ASP.NET
    30% C# +3
    10% AJAX
    10% Python
    10% SQL

    Small website development firm Apex Code Solutions, is in Jaipur, India. The team focuses on Web Development and Custom Software Development.

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  • Innovations Applied LLC Logotype

    Innovations Applied LLC

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    30% JavaScript
    25% AJAX
    25% PHP +3
    10% SQL
    5% Ember.js
    5% Java

    Innovations Applied LLC is a custom software development firm. The firm is based in Chicago, Illinois. Their services include Custom Software Development and UX/UI Design.

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  • En-Vision Consulting Engineers Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Architectural Design
    20% Commercial Development +2
    20% Commercial Financing
    20% E-Commerce Development

    Focus Areas

    30% JavaScript
    40% PHP
    30% Java

    En-Vision Consulting Engineers is a Karachi, Pakistan-based Architectural Design company. Established in 2014, the team focuses on Architectural Design and Commercial Development.

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  • Tiny Code Zone Logotype

    Not yet reviewed

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

    Services provided

    40% Web Development
    40% Graphic Design
    10% Content Marketing +1
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    40% Java
    20% SQL +3
    12% PHP
    10% C++
    8% Visual Basic

    Established in 2020, Tiny Code Zone is a small graphic design company. Their services include Graphic Design and Web Development.

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  • Synosky Technologies Logotype

    Synosky Technologies

    5.0 1 review
    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    10% Web Development
    25% Mobile App Development
    14% Low/No Code Development +8
    10% Custom Software Development
    10% E-Commerce Development
    10% Graphic Design
    5% Application Management & Support
    5% Enterprise App Modernization
    5% SMS Marketing
    5% Social Media Marketing
    1% Web Design

    Focus Areas

    30% JavaScript
    15% HTML5
    15% Java +5
    10% Kotlin
    10% PHP
    10% XML
    5% Redux
    5% SQL

    Synosky Technologies specializes in Website Development and Web Design, delivering projects punctually with impressive design and development expertise. Clients benefit from enhanced website functionality and international reach, highlighting the company's effectiveness in online development and web programming. Their prompt support and responsiveness further underscore their strong project management and client service capabilities.

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  • design2brand Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    2 - 9
    Limassol, Cyprus

    Services provided

    15% Web Development
    10% Branding
    10% Logo +11
    10% UX/UI Design
    10% Web Design
    5% Advertising
    5% Digital Strategy
    5% E-Commerce Development
    5% Graphic Design
    5% Marketing Strategy
    5% Mobile App Development
    5% Packaging Design
    5% Product Design
    5% Social Media Marketing

    Focus Areas

    25% JavaScript
    50% PHP
    25% AJAX

    Design2brand is a web development firm. Launched in 2012, the team provides Web Development and Branding.

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  • Zissu LTD Logotype

    Zissu LTD

    Not yet reviewed

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

    Services provided

    15% Web Development
    40% E-Commerce Development
    20% Web Design +3
    10% Business Consulting
    10% UX/UI Design
    5% Graphic Design

    Focus Areas

    25% JavaScript
    50% HTML5
    25% AJAX

    Established in 2017, Zissu LTD is an e-commerce development company. In nahariyah, Israel, the team offers E-Commerce Development and Web Design.

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  • MBI-NETWORK SRL Logotype

    5.0 4 reviews
    Undisclosed
    < $25 / hr
    10 - 49
    Patti, Italy

    Services provided

    10% Web Development
    25% E-Commerce Development
    20% Web Design +5
    15% Mobile App Development
    10% Low/No Code Development
    10% Search Engine Optimization
    5% Digital Strategy
    5% Other Digital Marketing

    Focus Areas

    30% JavaScript
    50% PHP
    20% Java

    MBI-NETWORK SRL is recognized for its expertise in Website Development and Online Development, particularly in creating intelligent web applications and dashboards. Reviews highlight their professionalism, effective collaboration, and ability to deliver strategic solutions, although clarity in reporting could be enhanced. Their team's experience and dedication significantly contribute to successful project outcomes.

    See all 4 projects
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  • Pebibits Technologies Logotype

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% E-Commerce Development +2
    20% Mobile App Development
    20% Social Media Marketing

    Focus Areas

    20% JavaScript
    30% PHP
    20% SQL +2
    20% Swift
    10% Python

    Pebibits Technologies specializes in Website Development, particularly utilizing WordPress for business websites. Reviews highlight the company's supportive team and effective project management, with clients noting their impressive work quality. The overall feedback underscores a positive experience with the services provided by Pebibits Technologies.

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Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

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We evaluate service providers using a structured methodology that combines:

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

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Ability to deliver
Focus
Clutch Leaders Matrix

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

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

List of the Top 15 JavaScript Development Companies

  1. ImageX Logotype

    ImageX

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

    Ability to deliver

    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
  2. xfive Logotype

    xfive

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

    Ability to deliver

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

    Service focus

    70% Web Development
    50% JavaScript
    30% Other
    View Profile Visit Website
  3. 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

    45% Web Development
    75% JavaScript
    55% 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

    38.1/40.0
    18.8/20 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

    39.1/40.0
    19.8/20 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

    39.5/40.0
    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
  8. 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
  9. Toptal Logotype

    Toptal

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

    Ability to deliver

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

    Service focus

    15% Web Development
    25% JavaScript
    85% Other
    View Profile Visit Website
  10. 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
  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. 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. 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
  16. HTMLPanda Logotype

    HTMLPanda

    $1,000+
    < $25 / hr
    250 - 999
    Boston, 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. Techuz InfoWeb Pvt. Ltd. Logotype

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

    36.4/40.0
    16.8/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    60% Web Development
    45% JavaScript
    40% Other
    View Profile Visit Website
  21. 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
  22. Human Made Logotype

    Human Made

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

    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
  23. 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
  24. Experion Technologies Logotype

    Experion Technologies

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

    Ability to deliver

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

    Service focus

    20% Web Development
    25% JavaScript
    80% 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. Blazity Logotype

    Blazity

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

    Ability to deliver

    37.5/40.0
    18.4/20 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
    Chelsea, Australia

    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. Probey Services Logotype

    Probey Services

    $1,000+
    < $25 / hr
    1,000 - 9,999
    London, England

    Ability to deliver

    36.5/40.0
    19.2/20 Reviews
    9.3/10 Clients & Experience
    8/10 Market Presence

    Service focus

    20% Web Development
    25% JavaScript
    80% Other
    View Profile Visit Website
  29. 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
  30. Oshyn Logotype

    Oshyn

    $25,000+
    $100 - $149 / hr
    50 - 249
    Long Beach, CA

    Ability to deliver

    36.2/40.0
    18.2/20 Reviews
    10/10 Clients & Experience
    8/10 Market Presence

    Service focus

    100% Web Development
    40% JavaScript
    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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