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Top JavaScript Developers

JavaScript powers everything from interactive websites to complex enterprise applications. Partnering with an experienced JavaScript development agency ensures your product is fast, secure, and ready to scale. Clutch makes it easy to find trusted providers by publishing in-depth, verified client reviews and transparent performance data. Use our filters to sort agencies by budget, location, framework expertise, and more. Looking for regional specialists? Browse firms in the United States, United Kingdom, or Canada to compare portfolios and pricing in your market. Start exploring today and shortlist partners that align with your goals.
Ratings Updated: April 1, 2026
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15 Leaders 15 Contenders

21,834 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

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    Digis, a Fiverr company (NYSE: FVRR) Logotype

    Digis, a Fiverr company (NYSE: FVRR)

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

    Services provided

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

    Focus Areas

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

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

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    Reviews mention Open to feedback

    The feedback indicates a strong sentiment towards DIGIS being open to feedback, with clients noting their responsiveness and effective communication. One client highlighted their comfort in collaboration, stating that DIGIS 'listens to our feedback' and delivers on promises. Overall, the sentiment is highly positive, emphasizing satisfaction with the team's ability to address client needs and maintain a collaborative atmosphere throughout the project.
    • Mobile App Development for Web Application Manager
      5.0 Jul 29, 2020

      It was easy to communicate both with the developer and the project manager. They were always ready to help with the questions, solve the misunderstandings, explain things, etc. Really happy with the collaboration.

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    • Custom Software Dev for Chat Software Company
      4.0 Jan 20, 2020

      We are also happy about the communication with the Digis management team and project managers. The quality of the developers stands out to us. They also are open to improving their performance.

      Read Full Review
    Read All Reviews
    4 of 4 reviews are 5 stars
    2 new reviews for Web Development services
    $10,000 – $49,000 avg. project cost

    Reviewed 4 times in the past 6 months

    In the past six months, clients have provided overwhelmingly positive feedback regarding Digis, a Fiverr company (NYSE: FVRR). Customers praised the team's responsive communication and effective project management, noting significant improvements in project turnaround times and overall site performance. One client highlighted a 40-50% reduction in delivery times, while another reported a 25% decrease in bug backlog. Overall, clients expressed satisfaction with the quality of work and alignment with their values, with no noted areas for improvement.
    Read 4 Recent Reviews
    6 of 6 JavaScript reviews are 5 stars
    1 new review for JavaScript in past 6 months
    $10,000 – $49,000 avg. project cost

    JavaScript Experience

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

    Read Most Recent Review

    Industry Experience

    Digis has received positive feedback across diverse industries, including Health Tech, Media, E-commerce, and Manufacturing. Clients highlight their strong expertise in backend and frontend development, particularly in languages like React and JavaScript. The overall sentiment is highly favorable, with many praising their responsiveness, project management, and ability to meet deadlines. Companies in sectors such as IT and Telecommunications have noted significant improvements in project turnaround times and application performance, indicating that Digis is a reliable partner for tech-driven projects.

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    Select Industry to see insights

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

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

    Services provided

    15% Web Development
    35% Mobile App Development
    15% Low/No Code Development +5
    10% Custom Software Development
    10% E-Commerce Development
    5% CRM Consulting and SI
    5% DevOps Managed Services
    5% Enterprise App Modernization

    Focus Areas

    10% JavaScript
    30% Kotlin
    20% Other programming & scripting languages +6
    20% Swift
    12% SQL
    4% Redux
    2% PHP
    1% Python
    1% Typescript

    Seasoned IT Professional | Driving Innovation & Efficiency in Technology Solutions  IMPETROSYS mission is to empower businesses and organisations through innovative and reliable technology

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  • Osiltec Infotech Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Web Design
    10% CRM Consulting and SI +6
    10% Content Marketing
    10% Email Marketing
    10% Mobile & App Marketing
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    25% JavaScript
    50% PHP
    25% Python

    Founded in 2017, Osiltec Infotech is a small web design agency located in Hyderabad, India. Their team specializes in Web Design and Content Marketing.

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  • CodeSphere Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Custom Software Development
    20% Mobile App Development +3
    10% E-Commerce Development
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% C# +7
    10% C++
    10% Ember.js
    10% Java
    10% Kotlin
    10% Objective C
    10% Python
    10% Redux

    Launched in 2023, CodeSphere is a custom software development firm. The agency offers Custom Software Development and Web Development.

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  • Emerald Soft Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% CRM Consulting and SI
    20% E-Commerce Development +2
    20% Mobile App Development
    20% Sales Outsourcing

    Focus Areas

    15% JavaScript
    25% PHP
    20% Kotlin +2
    20% SQL
    20% Swift

    Founded in 2020, Emerald Soft is a small Karachi, Pakistan-based CRM consulting and SI company. Their services include CRM consulting and SI and Web Development.

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    More responsive than most other service providers

    Emerald Soft is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
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  • Kibris Order Ltd. Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Custom Software Development
    25% Mobile App Development +1
    25% Product Design

    Focus Areas

    10% JavaScript
    20% Typescript
    10% ASP.NET +6
    10% Java
    10% Kotlin
    10% Objective C
    10% Python
    10% Redux
    10% Swift

    Kibris Order Ltd. Is a Product Design company. Established in 2017, their team provides Product Design and Custom Software Development.

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  • IZZZIO Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    10 - 49
    Dubai, United Arab Emirates

    Services provided

    15% Web Development
    25% Blockchain
    20% E-Commerce Development +4
    15% Custom Software Development
    10% AR/VR Development
    10% Mobile App Development
    5% Web Design

    Focus Areas

    26% JavaScript
    26% Python
    11% Other programming & scripting languages +6
    11% SQL
    6% Kotlin
    5% C++
    5% PHP
    5% Swift
    5% Typescript

    IZZZIO is a Blockchain company. In Dubai, United Arab Emirates, the agency provides Blockchain and E-Commerce Development.

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  • NEVO Logotype

    NEVO

    5.0 1 review
    $5,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    25% Web Development
    25% Custom Software Development
    25% E-Commerce Development +3
    10% AI Development
    10% IT Strategy Consulting
    5% Other Application Development

    Focus Areas

    15% JavaScript
    20% SQL
    15% ASP.NET +5
    15% C#
    15% Typescript
    10% Python
    5% HTML5
    5% Redux

    We specialize in a wide range of services, including software and web development, IT consultations, business automation, and ecommerce development. Our expert team leverages cutting-edge

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  • Essence Tech Labs Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% Custom Software Development
    15% Mobile App Development +6
    10% Content Marketing
    10% E-Commerce Development
    10% IoT Development
    10% Search Engine Optimization
    10% UX/UI Design
    5% Social Media Marketing

    Focus Areas

    24% JavaScript
    24% PHP
    22% Kotlin +2
    18% Redux
    12% AJAX

    Custom software development company Essence Tech Labs is based in Toronto, Canada and Toronto, Canada. Founded in 2021, the team focuses on Custom Software Development and Web Development.

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  • LuminateOne Logotype

    Not yet reviewed

    $25,000+
    $200 - $300 / hr
    10 - 49
    Matamata, New Zealand

    Services provided

    10% Web Development
    20% E-Commerce Development
    15% IT Strategy Consulting +10
    11% Low/No Code Development
    10% Custom Software Development
    10% Enterprise App Modernization
    10% Mobile App Development
    5% Business Consulting
    3% CRM Consulting and SI
    2% Cloud Consulting & SI
    2% UX/UI Design
    1% Document Digitization & Management
    1% Web Design

    Focus Areas

    20% JavaScript
    25% PHP
    25% SQL +2
    15% C++
    15% Python

    LuminateOne is a software development firm. They provide Custom Software Development and E-Commerce Development and are in Matamata, New Zealand.

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  • Mavsketch Logotype

    Mavsketch

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Custom Software Development
    15% Mobile App Development +8
    10% CRM Consulting and SI
    10% E-Commerce Development
    10% IoT Development
    5% Ecommerce Marketing
    5% Mobile & App Marketing
    5% Search Engine Optimization
    5% UX/UI Design
    5% Web Design

    Focus Areas

    30% JavaScript
    15% HTML5
    15% Typescript +6
    10% Other programming & scripting languages
    10% Redux
    5% AJAX
    5% Kotlin
    5% Swift
    5% jquery

    Mavsketch is a software development company. They provide Custom Software Development and Mobile App Development and are based in Dubai, United Arab Emirates.

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  • Semicolon Solution Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    50% Custom Software Development
    15% Mobile App Development +2
    10% Low/No Code Development
    10% UX/UI Design

    Focus Areas

    30% JavaScript
    35% HTML5
    30% Typescript +1
    5% Other programming & scripting languages

    Semicolon Solution, a software development firm, is headquartered in Surat, India. Their services include Custom Software Development and Web Development.

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  • UXM Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% E-Commerce Development
    15% Mobile App Development +6
    10% AR/VR Development
    10% Business Consulting
    10% Custom Software Development
    10% Digital Strategy
    10% Low/No Code Development
    10% Social Media Marketing

    Focus Areas

    44% JavaScript
    17% AJAX
    17% Typescript +2
    11% HTML5
    11% Other programming & scripting languages

    UXM, a web development company, is based in Bengaluru, India. Their services include Web Development and Mobile App Development.

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  • Rewa Soft Logotype

    Rewa Soft

    Not yet reviewed

    $1,000+
    Undisclosed
    10 - 49

    Services provided

    10% Web Development
    20% Branding
    20% Mobile App Development +4
    20% Search Engine Optimization
    10% Content Marketing
    10% Logo
    10% Low/No Code Development

    Focus Areas

    15% JavaScript
    15% AJAX
    15% PHP +4
    15% Python
    15% SQL
    15% Typescript
    10% Other programming & scripting languages

    Rewa Soft is a branding firm. The team is located in Kathmandu, Nepal, and their services include Branding and Search Engine Optimization.

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  • Exavibes Services Private Limited Logotype

    4.5 1 review
    $1,000+
    < $25 / hr
    10 - 49
    Mumbai, India

    Services provided

    10% Web Development
    20% Mobile App Development
    10% E-Commerce Development +17
    10% IoT Development
    7% Search Engine Optimization
    5% Application Management & Support
    5% Application Testing
    5% Custom Software Development
    5% Mobile & App Marketing
    3% Digital Strategy
    3% Email Marketing
    3% Social Media Marketing
    2% AI Development
    2% Affiliate Marketing
    2% Content Marketing
    2% Conversion Optimization
    2% Pay Per Click
    2% Wearable App Development
    1% AR/VR Development
    1% Blockchain

    Focus Areas

    20% JavaScript
    20% PHP
    10% AJAX +7
    10% ASP.NET
    10% Java
    10% Typescript
    8% Kotlin
    5% Swift
    5% XML
    2% Redux

    Exavibes Services Private Limited specializes in mobile application development for Android and iOS platforms. Reviews highlight their strong project management, effective communication, and knowledgeable team. Clients appreciate their dedication to deadlines and proactive communication, resulting in successful project outcomes and increased revenue.

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  • ZAMH Technologies LLC Logotype

    5.0 1 review
    $10,000+
    $100 - $149 / hr
    10 - 49
    New York, NY

    Services provided

    20% Web Development
    20% AI Development
    20% Mobile App Development +3
    20% UX/UI Design
    10% AR/VR Development
    10% Custom Software Development

    Focus Areas

    11% JavaScript
    11% ASP.NET
    11% C# +7
    11% HTML5
    11% PHP
    11% Python
    11% Rust
    11% SQL
    6% C++
    6% Typescript

    ZAMH Technologies LLC specializes in Website Development, Web Design, and Web Programming, providing tailored online development solutions. Their reviews highlight a commitment to delivering high-quality projects on time, with a strong focus on user engagement and satisfaction. Clients particularly appreciate their innovative approach, reliability, and customer-centric service, though improvements in communication documentation and change management have been suggested.

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  • OutsourcingDev Logotype

    Not yet reviewed

    $25,000+
    $25 - $49 / hr
    50 - 249
    Villa Allende, Argentina

    Services provided

    10% Web Development
    50% BI & Big Data Consulting & SI
    20% IT Staff Augmentation +2
    10% Custom Software Development
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    30% SQL
    10% C# +6
    10% Go
    10% Java
    10% Other programming & scripting languages
    10% Python
    5% PHP
    5% Ruby

    Big data analytics company OutsourcingDev was established in 2018. The firm specializes in BI & big data consulting & SI and IT staff augmentation, and is midsize.

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  • SkyFig Technologies Logotype

    4.0 1 review
    $5,000+
    $300+ / hr
    2 - 9
    Ilorin, Nigeria

    Services provided

    20% Web Development
    20% Mobile App Development
    15% E-Commerce Development +4
    15% Search Engine Optimization
    10% Low/No Code Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    30% PHP
    15% Python +5
    15% SQL
    10% AJAX
    10% Kotlin
    5% C++
    5% Typescript

    SkyFig Technologies specializes in Website Development, providing services that include Web Design and Web Programming. Clients commend their impressive client interaction and project management, highlighting their ability to deliver satisfactory results swiftly. While their overall performance is praised, a slight improvement in graphics design is suggested.

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  • Onbyz Technologies LLC Logotype

    Onbyz Technologies LLC

    Not yet reviewed

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

    Services provided

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

    Focus Areas

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

    Onbyz Technologies LLC, a SEO company, is in Dubai, United Arab Emirates and Thiruvananthapuram, India. The team offers Search Engine Optimization and Pay Per Click.

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  • EACHSTAPP Logotype

    Not yet reviewed

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

    Services provided

    30% Web Development
    30% Custom Software Development
    30% Mobile App Development +2
    5% UX/UI Design
    5% Web Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% ASP.NET +7
    10% C#
    10% Go
    10% Kotlin
    10% Python
    10% Redux
    10% SQL
    10% Typescript

    Founded in 2022, EACHSTAPP is a custom software development company. The firm provides Custom Software Development and Web Development.

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  • SG Web Builder by 8Clicks Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Web Design
    15% Search Engine Optimization +6
    10% Custom Software Development
    10% Digital Strategy
    10% E-Commerce Development
    10% Pay Per Click
    10% Social Media Marketing
    5% Mobile App Development

    Focus Areas

    20% JavaScript
    30% PHP
    30% SQL +1
    20% AJAX

    SG Web Builder by 8Clicks is a Singapore-based web design company. Their services include Web Design and Search Engine Optimization.

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    More responsive than most other service providers

    SG Web Builder by 8Clicks is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
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  • Shubbak Technologies Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    10 - 49
    Dubai, United Arab Emirates

    Services provided

    20% Web Development
    40% Custom Software Development
    40% Mobile App Development

    Focus Areas

    10% JavaScript
    50% Python
    20% Typescript +2
    10% AJAX
    10% PHP

    Shubbak Technologies is a web development company specializing in custom website development and web application development. Reviews highlight their commitment to user-centric design and successful project management, with 100% of feedback emphasizing their responsiveness and ability to meet deadlines. Their expertise in integrating complex needs into intuitive web solutions has been particularly praised.

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  • IT First Source Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Red Hook, NY

    Services provided

    50% Web Development
    50% Custom Software Development

    Focus Areas

    25% JavaScript
    50% Java
    25% HTML5

    Launched in 2000, IT First Source is a software development firm and web development firm. The agency offers Custom Software Development and Web Development.

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  • Deveint Limited Logotype

    5.0 1 review
    $5,000+
    $25 - $49 / hr
    10 - 49
    Nairobi, Kenya

    Services provided

    10% Web Development
    35% Custom Software Development
    10% Cybersecurity +6
    10% E-Commerce Development
    10% Mobile App Development
    10% Web Design
    5% AI Development
    5% Blockchain
    5% IoT Development

    Focus Areas

    30% JavaScript
    35% PHP
    20% HTML5 +1
    15% Python

    Deveint Limited offers Website Development, Web Design, and various web programming services. Reviews highlight their prompt and budget-friendly service, flexible project management, and strong work culture. The company is praised for delivering projects on time and within budget, with a particular focus on local solutions.

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  • CoreByte Teknoloji ve Yazilim Gelistirme Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    25% Custom Software Development
    15% E-Commerce Development +6
    15% Web Design
    5% Business Consulting
    5% CRM Consulting and SI
    5% IT Strategy Consulting
    5% IoT Development
    5% Other Application Development

    Focus Areas

    10% JavaScript
    75% PHP
    10% XML +1
    5% SQL

    CoreByte Teknoloji ve Yazilim Gelistirme is a custom software development firm. Established in 2021, the firm provides Custom Software Development and Web Development.

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  • Striuchkov Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    Freelancer
    Khmel'nyts'kyi, Ukraine

    Services provided

    20% Web Development
    20% Web Design
    10% Marketing Strategy +9
    10% Pay Per Click
    5% Advertising
    5% Branding
    5% Digital Strategy
    5% Graphic Design
    5% Logo
    5% Search Engine Optimization
    5% Social Media Marketing
    5% UX/UI Design

    Focus Areas

    70% JavaScript
    30% PHP

    Striuchkov, a small web design agency, is based in Khmel'nyts'kyi, Ukraine. The team focuses on Web Design and Web Development.

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  • Godigihub Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Search Engine Optimization
    15% E-Commerce Development +4
    10% Mobile App Development
    10% Pay Per Click
    10% Social Media Marketing
    5% Custom Software Development

    Focus Areas

    10% JavaScript
    25% PHP
    15% ASP.NET +4
    15% Java
    15% Other programming & scripting languages
    15% XML
    5% AJAX

    Godigihub, a SEO company, specializes in Search Engine Optimization and Web Development. The firm is headquartered in Noida, India.

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  • Avokado Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    40% Search Engine Optimization
    20% E-Commerce Development +2
    10% Conversion Optimization
    10% Ecommerce Marketing

    Focus Areas

    18% JavaScript
    25% HTML5
    25% PHP +3
    12% AJAX
    12% jquery
    8% SQL

    Launched in 2015, Avokado is a small SEO services firm located in Beograd, Serbia. Their team provides Search Engine Optimization and Web Development.

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  • Maocular Tech Expert Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    10 - 49
    Abuja, Nigeria

    Services provided

    20% Web Development
    20% E-Commerce Development
    10% Mobile & App Marketing +5
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    60% PHP
    20% SQL +1
    10% Java

    Maocular Tech Expert is an e-commerce development firm. Based in Abuja, Nigeria and Akure, Nigeria, the team focuses on E-Commerce Development and Web Development.

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  • Mobibus Logotype

    Mobibus

    5.0 1 review
    $10,000+
    $100 - $149 / hr
    10 - 49

    Services provided

    10% Web Development
    20% E-Commerce Development
    20% IT Strategy Consulting +4
    20% Mobile App Development
    10% AI Development
    10% AR/VR Development
    10% Application Management & Support

    Focus Areas

    11% JavaScript
    12% PHP
    11% Ember.js +6
    11% Objective C
    11% Other programming & scripting languages
    11% Python
    11% Swift
    11% Typescript
    11% Visual Basic

    Mobibus provides comprehensive Website Development, Web Design, and Online Development services, which include creating user-friendly and visually appealing websites, enhancing social media engagement, and developing custom software solutions. The reviews highlight Mobibus's expertise in delivering timely, high-quality results with excellent communication and adaptability, ensuring client satisfaction and fostering strong collaboration throughout the project.

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  • UflyCreative Logotype

    UflyCreative

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    20% JavaScript
    30% AJAX
    20% SQL +3
    10% Python
    10% Ruby
    10% XML

    UflyCreative is a web design agency. They provide Web Design and UX/UI Design and are headquartered in Nicosia, Cyprus.

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  • Monte del Gallo Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% Custom Software Development
    20% Enterprise App Modernization +2
    20% Mobile App Development
    10% BI & Big Data Consulting & SI

    Focus Areas

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

    Monte del Gallo is a custom software development firm launched in 2017. The company provides Custom Software Development and Enterprise App Modernization.

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  • Centare Logotype

    Not yet reviewed

    $25,000+
    $100 - $149 / hr
    50 - 249
    Brookfield, WI

    Services provided

    10% Web Development
    50% Custom Software Development
    20% Enterprise App Modernization +2
    10% Digital Strategy
    10% UX/UI Design

    Focus Areas

    20% JavaScript
    50% C#
    20% Java +1
    10% Objective C

    Founded in 1999, Centare is a software development firm. The team specializes in Custom Software Development and Enterprise App Modernization.

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  • Universal Networks Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9
    Colombo, Sri Lanka

    Services provided

    25% Web Development
    40% E-Commerce Development
    20% Web Design +1
    15% Search Engine Optimization

    Focus Areas

    10% JavaScript
    50% PHP
    20% HTML5 +2
    10% SQL
    10% jquery

    Based in Colombo, Sri Lanka, Universal Networks is a small e-commerce development company. Their services include E-Commerce Development and Web Development.

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  • Design Your Site Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    10 - 49
    Tulsa, OK

    Services provided

    15% Web Development
    35% Search Engine Optimization
    30% Web Design +3
    10% UX/UI Design
    5% Branding
    5% Mobile App Development

    Focus Areas

    20% JavaScript
    60% ASP.NET
    20% SQL

    Design Your Site is a SEO services firm. They were launched in 2009 and specialize in Search Engine Optimization and Web Design.

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  • RC Web Solutions LLC Logotype

    Not yet reviewed

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

    Services provided

    45% Web Development
    35% Custom Software Development
    20% Web Design

    Focus Areas

    30% JavaScript
    20% SQL
    20% Typescript +3
    10% HTML5
    10% Other programming & scripting languages
    10% Redux

    RC Web Solutions LLC is a website development company. They were founded in 2025, and their services include Web Development and Custom Software Development.

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  • Ital Innovation Logotype

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    10 - 49
    Torino, Italy

    Services provided

    10% Web Development
    50% Mobile App Development
    20% IoT Development +2
    10% AR/VR Development
    10% Product Design

    Focus Areas

    16% JavaScript
    11% C#
    11% C++ +6
    11% Java
    11% Python
    10% ASP.NET
    10% PHP
    10% SQL
    10% Swift

    Ital Innovation is a Torino, Italy-based app development firm. They specialize in Mobile App Development and IoT development and were founded in 2019.

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  • Gravum Logotype

    Not yet reviewed

    $25,000+
    $25 - $49 / hr
    10 - 49
    Vilnius, Lithuania

    Services provided

    20% Web Development
    20% Mobile App Development
    15% AR/VR Development +7
    10% Custom Software Development
    10% UX/UI Design
    5% Blockchain
    5% E-Commerce Development
    5% Enterprise App Modernization
    5% IoT Development
    5% Wearable App Development

    Focus Areas

    22% JavaScript
    23% Java
    22% C# +3
    11% C++
    11% Objective C
    11% Swift

    Gravum is a small mobile app development firm established in 2016. Their team focuses on Mobile App Development and Web Development.

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  • Genextwebs Technologies Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    60% E-Commerce Development
    20% Web Design

    Focus Areas

    20% JavaScript
    25% PHP
    20% HTML5 +2
    20% jquery
    15% AJAX

    Established in 2015, Genextwebs Technologies is a small e-commerce development firm. Their services include E-Commerce Development and Web Design.

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  • TownDevs Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Digital Strategy
    10% E-Commerce Development +8
    10% Graphic Design
    10% IT Managed Services
    10% Pay Per Click
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design
    5% Conversion Optimization
    5% Email Marketing

    Focus Areas

    100% JavaScript

    Established in 2024, TownDevs is a Digital Strategy company. The team focuses on Digital Strategy and Social Media Marketing.

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  • Smartek Sistem Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% Custom Software Development
    10% IT Strategy Consulting +7
    10% Mobile App Development
    10% Unified Communications Consulting & SI
    10% Web Design
    5% Application Testing
    5% Branding
    5% IT Managed Services
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    40% PHP
    20% Swift +3
    10% Kotlin
    10% SQL
    10% XML

    Small software development company Smartek Sistem, is headquartered in Cimahi, Indonesia and Depok, Indonesia. Their services include Custom Software Development and Web Design.

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  • Tommy Day Logotype

    Tommy Day

    Not yet reviewed

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

    Services provided

    100% Web Development

    Focus Areas

    20% JavaScript
    80% PHP

    Tommy Day, a website development company, is located in Indianapolis, Indiana. They specialize in Web Development.

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  • Fraser Clark Logotype

    Not yet reviewed

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

    Services provided

    45% Web Development
    30% Custom Software Development
    10% Digital Strategy +2
    10% Search Engine Optimization
    5% Conversion Optimization

    Focus Areas

    25% JavaScript
    75% PHP

    Fraser Clark is a web development firm. Their small team is headquartered in Edinburgh, Scotland and offers Web Development and Custom Software Development. The agency was launched in 2015.

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  • Websites by Nyssa Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    Freelancer
    Croydon Park, Australia

    Services provided

    45% Web Development
    45% Web Design
    10% Search Engine Optimization

    Focus Areas

    25% JavaScript
    50% HTML5
    25% PHP

    Established in 2011, Websites by Nyssa, a small web design agency, is in Croydon Park, Australia. Their services include Web Design and Web Development.

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  • Altumind Logotype

    Altumind

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    50 - 249

    Services provided

    15% Web Development
    15% Marketing Strategy
    15% Mobile App Development +5
    15% UX/UI Design
    10% Custom Software Development
    10% Generative AI
    10% IT Managed Services
    10% IT Staff Augmentation

    Focus Areas

    20% JavaScript
    15% Java
    15% PHP +7
    10% C
    10% Python
    10% Visual Basic
    5% ASP.NET
    5% Objective C
    5% Other programming & scripting languages
    5% SQL

    Altumind is a mobile app development company established in 2016. Their services include Mobile App Development and Marketing Strategy.

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  • White Raven Logotype

    White Raven

    5.0 2 reviews
    $5,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    25% Web Development
    45% Custom Software Development
    15% AI Development +1
    15% Mobile App Development

    Focus Areas

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

    White Raven specializes in Website Development, Web Design, and creating custom web applications. The feedback consistently highlights their exceptional project management, clear communication, and ability to deliver high-quality products on time. Clients particularly appreciate White Raven's attention to detail and their capacity to understand and address industry-specific needs.

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  • TruWebDesign Logotype

    TruWebDesign

    5.0 1 review
    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    25% Web Development
    30% Search Engine Optimization
    30% Social Media Marketing +1
    15% Web Design

    Focus Areas

    30% JavaScript
    40% HTML5
    30% PHP

    TruWebDesign specializes in Website Development and Web Design, offering services that include SEO and marketing. Reviews highlight their exceptional speed and effectiveness, emphasizing good value for cost. Clients appreciate their prompt delivery and professional project management, leading to successful outcomes and increased business.

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  • Kredance Logotype

    5.0 1 review
    Undisclosed
    $25 - $49 / hr
    2 - 9
    Ottawa, Canada

    Services provided

    30% Web Development
    35% Mobile App Development
    15% Web Design +2
    10% AI Development
    10% Search Engine Optimization

    Focus Areas

    25% JavaScript
    15% Python
    10% AJAX +5
    10% HTML5
    10% Objective C
    10% PHP
    10% Redux
    10% SQL

    Kredance offers comprehensive Website Development services, including full-stack development, Web Design, and Web Dev, with expertise in technologies like Python and JavaScript. Client reviews highlight their problem-solving skills, effective project management, and transparency, making Kredance a reliable partner for complex online development projects. Their commitment to timely delivery and proactive communication fosters strong collaboration.

    See all 1 projects
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  • Scriptix Technology Logotype

    Scriptix Technology

    5.0 1 review
    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    30% Web Development
    40% IT Strategy Consulting
    30% Custom Software Development

    Focus Areas

    25% JavaScript
    25% PHP
    25% Python +1
    25% Typescript

    Scriptix Technology is an IT company with 5 years of experience, specializing in software, web, and consulting services. The company focuses on delivering innovative digital solutions, simplifying

    Read more
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  • Scion Internet Logotype

    Not yet reviewed

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

    Services provided

    30% Web Development
    20% Custom Software Development
    15% UX/UI Design +4
    10% Application Management & Support
    10% E-Commerce Development
    10% IT Managed Services
    5% Enterprise App Modernization

    Focus Areas

    25% JavaScript
    50% PHP
    25% SQL

    Scion Internet is a web development company. In Kendal, England and Manchester, England, their small team provides Web Development and Custom Software Development. The agency was founded in 2017.

    Read more
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  • SHEEK MEDIA Logotype

    SHEEK MEDIA

    Not yet reviewed

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

    Services provided

    25% Web Development
    30% Search Engine Optimization
    25% Web Design +1
    20% Social Media Marketing

    Focus Areas

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

    SHEEK MEDIA is a SEO agency. They are located in San Diego, California and have small team. Their team focuses on Search Engine Optimization and Web Design.

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

List of the Top 15 JavaScript Development Companies

  1. xfive Logotype

    xfive

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

    Ability to deliver

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

    Service focus

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

    ImageX

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

    Ability to deliver

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

    Service focus

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

    Brainhub

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

    Ability to deliver

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

    Service focus

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

    ATEAM SOFT SOLUTIONS

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

    Ability to deliver

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

    Service focus

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

    The Software House

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

    Ability to deliver

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

    Service focus

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

    Xmartlabs

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

    Ability to deliver

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

    Service focus

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

    Airdev

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

    Ability to deliver

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

    Service focus

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

    WPWeb Infotech

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

    Ability to deliver

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

    Service focus

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

    Lizard Global

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

    Ability to deliver

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

    Service focus

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

    Softonix

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

    Ability to deliver

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

    Service focus

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

    INOXOFT

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

    Ability to deliver

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

    Service focus

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

    PopArt Studio

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

    Ability to deliver

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

    Service focus

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

    GeekyAnts

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

    Ability to deliver

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

    Service focus

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

    Incora

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

    Ability to deliver

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

    Service focus

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

    SpdLoad

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

    Ability to deliver

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

    Service focus

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

    Brainium Information Technologies

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

    Ability to deliver

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

    Service focus

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

    Toptal

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

    Ability to deliver

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

    Service focus

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

    HTMLPanda

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

    Ability to deliver

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

    Service focus

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

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

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

    Service focus

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

    PowerGate Software

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

    Ability to deliver

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

    Service focus

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

    Experion Technologies

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

    Ability to deliver

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

    Service focus

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

    Human Made

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

    Ability to deliver

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

    Service focus

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

    Blazity

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

    Ability to deliver

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

    Service focus

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

    Sigma Software Group

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

    Ability to deliver

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

    Service focus

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

    Vangwe

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

    Ability to deliver

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

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  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. Light IT Global Logotype

    Light IT Global

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

    Ability to deliver

    38.9/40.0
    19.2/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

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

Top JavaScript Development Agencies

A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.

Most agencies bundle multiple offerings so clients can access full product life-cycle support:

  • Discovery workshops & technical consulting
  • UI/UX design and prototyping
  • Front-end SPA or PWA development
  • Server-side development with Node.js or Deno
  • API design, GraphQL, and microservices architecture
  • QA automation & performance testing
  • DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
  • Post-launch maintenance and feature sprints

Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.

Clutch data shows project budgets range widely:

  • MVP or small web app - $15,000–$50,000
  • Mid-size product build - $50,000–$200,000
  • Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.

  • Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
  • Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
  • Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
  • Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
  • Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.

Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.

  • Guaranteed timelines without discovery
  • No access to source code repositories during the engagement
  • Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
  • Low developer retention or high turnover
  • Vague pricing models or hidden fees

If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution

  • Which JavaScript frameworks do you specialize in, and why?
  • Can you walk me through a recent project with similar complexity?
  • How do you ensure code quality—linting, peer reviews, automated tests?
  • What is your approach to scalability and performance optimization?
  • How will we communicate and track progress (tools, meeting cadence)?
  • Who owns the intellectual property and source code upon project completion?

Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.

A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.

Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.

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