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Top JavaScript Developers

JavaScript powers everything from interactive websites to complex enterprise applications. Partnering with an experienced JavaScript development agency ensures your product is fast, secure, and ready to scale. Clutch makes it easy to find trusted providers by publishing in-depth, verified client reviews and transparent performance data. Use our filters to sort agencies by budget, location, framework expertise, and more. Looking for regional specialists? Browse firms in the United States, United Kingdom, or Canada to compare portfolios and pricing in your market. Start exploring today and shortlist partners that align with your goals.
Ratings Updated: December 22, 2025
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15 Leaders 15 Contenders

21,445 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

  • Featured

    What are Featured Providers?

    Digis, a Fiverr company (NYSE: FVRR) Logotype

    Digis, a Fiverr company (NYSE: FVRR)

    4.9 87 reviews
    Premier Verified
    $5,000+
    $25 - $49 / hr
    50 - 249
    London, England

    Services provided

    50% Web Development
    50% Custom Software Development

    Focus Areas

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

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

    See all 87 projects
    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 for Digis highlight a strong overall sentiment, emphasizing excellent communication, timely delivery, and effective project management. Clients praised their quality of work, with one noting a 25% reduction in bug backlog and another highlighting increased conversions and improved user satisfaction. Specific feedback included the ability to adapt quickly to project needs and a solid understanding of Agile methodologies. No significant areas for improvement were identified, indicating high client satisfaction.
    Read 6 Recent Reviews

    Industry Experience

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

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

    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

    Clients consistently praised Digis for their competitive pricing and strong value for money. Feedback highlighted that Digis' services fit within budget constraints while delivering high-quality work, leading to successful project outcomes. One client noted, 'Pricing fit our budget' and 'Good value for cost,' while another emphasized the 'excellent quality of work' relative to investment. Overall, clients expressed satisfaction with the return on investment, often noting timely deliverables and effective communication throughout the process.
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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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  • Vigomerge Inc. Logotype

    Vigomerge Inc.

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

    Services provided

    10% Web Development
    40% DevOps Managed Services
    30% Robotics Process Automation +2
    10% E-Commerce Development
    10% Mobile App Development

    Focus Areas

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

    Vigomerge Technology has over 8+ years of experience. We have a passion for delivering high-quality products and services that exceed customer expectations. We are pioneers in delivering

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  • Syed Software Logotype

    Syed Software

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

    Services provided

    20% Web Development
    20% AI Development
    20% Custom Software Development +2
    20% IoT Development
    20% Search Engine Optimization

    Focus Areas

    10% JavaScript
    20% AJAX
    20% PHP +3
    20% Python
    20% SQL
    10% Java

    Syed Software is a leading software development company based in Pakistan, offering a wide range of cutting-edge digital solutions to businesses worldwide. With a strong commitment to innovation,

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  • The Real Deal Digital Logotype

    The Real Deal Digital

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

    Services provided

    10% Web Development
    20% Search Engine Optimization
    20% Social Media Marketing +5
    10% Content Marketing
    10% Digital Strategy
    10% E-Commerce Development
    10% Marketing Strategy
    10% Web Design

    Focus Areas

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

    The Real Deal Digital offers comprehensive Website Development and Web Design services, including custom CRM integration. Feedback highlights their exceptional project management, timely delivery, and genuine passion for client success. Clients appreciate their detailed project proposals and effective communication tools, ensuring smooth and satisfactory outcomes.

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  • VegaOne - Digital Marketing Agency Logotype

    5.0 1 review
    $1,000+
    $50 - $99 / hr
    10 - 49
    El Segundo, CA

    Services provided

    20% Web Development
    25% Search Engine Optimization
    15% Social Media Marketing +4
    10% Email Marketing
    10% Graphic Design
    10% Logo
    10% Web Design

    Focus Areas

    10% JavaScript
    15% HTML5
    15% XML +6
    15% jquery
    10% ASP.NET
    10% C
    10% C++
    10% Java
    5% PHP

    VegaOne - Digital Marketing Agency specializes in Website Development, Web Design, and various digital marketing services including social media marketing, PPC, and email marketing. Overall feedback highlights their timely communication, expertise with modern technologies, and effective project outcomes, though occasional delays were noted due to workload.

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  • Webdeves Digital Agency Logotype

    5.0 1 review
    Undisclosed
    $25 - $49 / hr
    10 - 49
    Aba, Nigeria

    Services provided

    20% Web Development
    20% Branding
    20% Digital Strategy +2
    20% Search Engine Optimization
    20% Web Design

    Focus Areas

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

    Webdeves is a digital agency and software development company that focuses on quality, innovation, and speed. We utilize technology to bring results and grow our clients' businesses.We pride

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  • Techooze Solutions Logotype

    0.5 1 review
    Undisclosed
    Undisclosed
    10 - 49
    New Delhi, India

    Services provided

    10% Web Development
    10% CRM Consulting and SI
    10% E-Commerce Development +8
    10% Email Marketing
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design
    5% Graphic Design
    5% Logo

    Focus Areas

    20% JavaScript
    20% ASP.NET
    20% HTML5 +2
    20% PHP
    20% SQL

    Techooze Solutions offers services in Website Development, Web Design, and SEO Optimization. The reviews reflect a generally negative experience, highlighting issues such as lack of transparency, poor communication, and delays in project delivery. Clients have expressed dissatisfaction with the quality of work and deceptive pricing practices, suggesting significant room for improvement in their operations.

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  • EGO - Web Branding Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    10 - 49
    Tel Aviv-Yafo, Israel

    Services provided

    20% Web Development
    20% Custom Software Development
    15% E-Commerce Development +4
    15% Mobile App Development
    10% Logo
    10% UX/UI Design
    10% Web Design

    Focus Areas

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

    Based in Tel Aviv-Yafo, Israel, EGO - Web Branding is a custom software development company. The team specializes in Custom Software Development and Web Development.

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  • BrainyBeam Technologies Pvt Ltd Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% Mobile App Development
    20% Custom Software Development +3
    10% Application Testing
    10% Call Center Services
    10% IoT Development

    Focus Areas

    10% JavaScript
    20% Java
    20% Swift +7
    10% ASP.NET
    10% C#
    10% PHP
    5% AJAX
    5% Objective C
    5% SQL
    5% XML

    BrainyBeam Technologies Pvt Ltd is a small mobile app development company launched in 2010. Their team provides Mobile App Development and Custom Software Development.

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  • App Humour Logotype

    App Humour

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    10% JavaScript
    20% PHP
    20% Python +5
    10% AJAX
    10% Objective C
    10% Other programming & scripting languages
    10% Ruby
    10% Swift

    In Vietnam, App Humour is an user experience design agency. The team specializes in UX/UI Design and Graphic Design.

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  • Cubic SoftLab Logotype

    Cubic SoftLab

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    10 - 49

    Services provided

    15% Web Development
    20% Custom Software Development
    15% Mobile App Development +10
    10% E-Commerce Development
    10% Web Design
    5% Graphic Design
    5% Logo
    5% UX/UI Design
    3% Advertising
    3% Market Research
    3% Marketing Strategy
    3% Search Engine Optimization
    3% Social Media Marketing

    Focus Areas

    15% JavaScript
    20% PHP
    15% C# +5
    10% ASP.NET
    10% Java
    10% Python
    10% SQL
    10% Swift

    Cubic SoftLab is a small custom software development firm headquartered in. The team offers Custom Software Development and Mobile App Development.

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  • Fenix Alliance Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    12% Cloud Consulting & SI
    10% IT Managed Services +18
    8% AI Development
    8% IT Strategy Consulting
    7% BI & Big Data Consulting & SI
    7% Custom Software Development
    5% Mobile App Development
    4% CRM Consulting and SI
    4% IoT Development
    3% AR/VR Development
    3% Application Management & Support
    3% Cybersecurity
    3% E-Commerce Development
    3% Enterprise App Modernization
    3% Unified Communications Consulting & SI
    2% Application Testing
    2% Blockchain
    1% Other Application Development
    1% Other IT Consulting and SI
    1% Wearable App Development

    Focus Areas

    20% JavaScript
    50% C#
    10% ASP.NET +3
    10% SQL
    5% ASP
    5% Typescript

    Fenix Alliance, a cloud consulting & SI company, was established in 2009. In Tunja, Colombia and Lewes, Delaware, the team focuses on cloud consulting & SI and IT managed services.

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  • VirtualX Softwares Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Sivakasi, India

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% Search Engine Optimization +3
    20% Web Design
    10% Mobile App Development
    10% Social Media Marketing

    Focus Areas

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

    E-commerce development company VirtualX Softwares is based in Sivakasi, India. They specialize in E-Commerce Development and Search Engine Optimization.

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  • Cordiace Solutions Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    60% UX/UI Design
    10% E-Commerce Development +2
    10% Product Design
    10% Web Design

    Focus Areas

    20% JavaScript
    40% PHP
    20% AJAX +1
    20% SQL

    Cordiace Solutions is an UX design company. Based in Kakkanad, India, the team offers UX/UI Design and E-Commerce Development.

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  • Amptech Software LLP Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Mobile App Development +4
    10% Application Management & Support
    10% Blockchain
    10% E-Commerce Development
    10% Web Design

    Focus Areas

    10% JavaScript
    20% AJAX
    10% ASP.NET +6
    10% Objective C
    10% PHP
    10% Python
    10% SQL
    10% Swift
    10% XML

    Amptech Software LLP is a small Noida, India-based custom software development company. Their services include Custom Software Development and Mobile App Development.

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  • Medio Agency Logotype

    Medio Agency

    Not yet reviewed

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

    Services provided

    20% Web Development
    80% Web Design

    Focus Areas

    10% JavaScript
    75% PHP
    5% ASP.NET +2
    5% C#
    5% jquery

    Medio Agency is a web design agency established in 2000. Their team provides Web Design and Web Development.

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  • INAUSCO Digital Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Jaipur, India

    Services provided

    10% Web Development
    20% Search Engine Optimization
    10% Content Marketing +10
    10% Digital Strategy
    10% Other Digital Marketing
    10% Pay Per Click
    10% Social Media Marketing
    5% Conversion Optimization
    5% Email Marketing
    5% Web Design
    2% Graphic Design
    2% UX/UI Design
    1% Video Production

    Focus Areas

    20% JavaScript
    50% PHP
    10% AJAX +2
    10% ASP.NET
    10% SQL

    INAUSCO Digital is a SEO company. The team focuses on Search Engine Optimization and Content Marketing and is based in Perth, Australia and Jaipur, India.

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  • ALCOTECH INTERNET PVT LTD Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Mobile App Development +5
    15% Web Design
    10% UX/UI Design
    5% Application Testing
    5% E-Commerce Development
    5% Social Media Marketing

    Focus Areas

    10% JavaScript
    30% PHP
    20% SQL +6
    10% Other programming & scripting languages
    10% Python
    5% AJAX
    5% Java
    5% Objective C
    5% Swift

    ALCOTECH INTERNET PVT LTD is a software development company. Based in Bengaluru, India and India, the firm specializes in Custom Software Development and Mobile App Development.

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  • Techiefleet Technologies Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    40% Mobile App Development
    20% E-Commerce Development +7
    6% Web Design
    5% Custom Software Development
    2% Architectural Design
    2% IoT Development
    2% Product Design
    2% UX/UI Design
    1% AI Development

    Focus Areas

    10% JavaScript
    30% C#
    20% ASP.NET +4
    10% AJAX
    10% Java
    10% SQL
    10% Swift

    Mobile application development company Techiefleet Technologies was launched in 2015. The team provides Mobile App Development and E-Commerce Development and is located in Palghar, India.

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  • Delinx.Digital Logotype

    Delinx.Digital

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% Custom Software Development
    20% UX/UI Design +3
    15% Web Design
    10% IT Strategy Consulting
    5% Mobile App Development

    Focus Areas

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

    Delinx.Digital is a small Sofia, Bulgaria-based software development company. Their services include Custom Software Development and UX/UI Design.

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  • Codrain Technolabs Private Limited Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Ahmedabad, India

    Services provided

    20% Web Development
    40% E-Commerce Development
    20% Mobile App Development +2
    10% Graphic Design
    10% Web Design

    Focus Areas

    10% JavaScript
    35% PHP
    25% SQL +2
    20% XML
    10% AJAX

    Codrain Technolabs Private Limited is an e-commerce development company. Established in 2015, the agency specializes in E-Commerce Development and Mobile App Development.

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  • IoT Factory Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    50% IoT Development
    30% AI Development +1
    10% Custom Software Development

    Focus Areas

    20% JavaScript
    50% Python
    20% PHP +2
    5% C++
    5% Java

    IoT Factory is an IoT development company. The small Kyiv, Ukraine-based team focuses on IoT development and Artificial Intelligence. The agency was launched in 2016.

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  • Nexential Solutions Pvt. Ltd. Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% IT Staff Augmentation
    10% Custom Software Development +11
    10% Mobile App Development
    5% Application Testing
    5% Digital Strategy
    5% E-Commerce Development
    5% Email Marketing
    5% Recruiting
    5% Search Engine Optimization
    5% Social Media Marketing
    5% Staffing
    5% UX/UI Design
    5% Web Design

    Focus Areas

    15% JavaScript
    10% PHP
    10% Python +11
    10% SQL
    10% Visual Basic
    5% ASP.NET
    5% C
    5% C#
    5% C++
    5% Ember.js
    5% Java
    5% Objective C
    5% Swift
    5% XML

    Nexential Solutions Pvt. Ltd. Is an IT staff augmentation company. Based in Bengaluru, India, the firm provides IT staff augmentation and Web Development.

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  • LiangTuang Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AR/VR Development
    10% Blockchain +7
    10% Business Consulting
    10% Custom Software Development
    10% IT Managed Services
    10% IT Strategy Consulting
    10% Mobile App Development
    10% Other Application Development
    10% Wearable App Development

    Focus Areas

    20% JavaScript
    30% PHP
    30% Python +1
    20% Other programming & scripting languages

    Custom software development company LiangTuang was founded in 2020. The team provides Custom Software Development and AR/VR development.

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  • Strides Empower Ltd Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    50% Custom Software Development
    20% Mobile App Development +2
    10% E-Commerce Development
    10% IT Managed Services

    Focus Areas

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

    Strides Empower Ltd is a custom software development company founded in 2018. The agency provides Custom Software Development and Mobile App Development.

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  • Incodeks Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    10 - 49
    Prishtinë, Kosovo

    Services provided

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

    Focus Areas

    10% JavaScript
    50% Python
    30% PHP +2
    5% Other programming & scripting languages
    5% SQL

    Incodeks is a software development firm. Established in 2015, the agency is headquartered in Prishtinë, Kosovo. Their services include Custom Software Development and Artificial Intelligence.

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  • Yax Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Web Design
    5% AI Development +15
    5% Application Management & Support
    5% Branding
    5% Business Consulting
    5% Content Marketing
    5% Conversion Optimization
    5% Custom Software Development
    5% Digital Strategy
    5% IT Strategy Consulting
    5% Logo
    5% Market Research
    5% Pay Per Click
    5% Product Design
    5% Public Relations
    5% Search Engine Optimization
    5% UX/UI Design

    Focus Areas

    20% JavaScript
    30% PHP
    15% Python +5
    10% SQL
    10% Typescript
    5% C++
    5% Ember.js
    5% Redux

    Web design agency Yax was established in 2009. The small team provides Web Design and Web Development.

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  • Appvoir Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Custom Software Development
    12% Wearable App Development +12
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% Mobile App Development
    5% Application Management & Support
    5% Application Testing
    5% Other Application Development
    3% Web Design
    2% Blockchain
    2% Graphic Design
    2% Logo
    2% Product Design
    2% UX/UI Design

    Focus Areas

    20% JavaScript
    30% Java
    10% C +5
    10% C#
    10% Ember.js
    10% XML
    5% Objective C
    5% Redux

    Appvoir is a small custom software development firm. They focus on Custom Software Development and Wearable App Development and were founded in 2018.

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  • Shrinext Limited Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    10% JavaScript
    50% PHP
    10% AJAX +3
    10% Other programming & scripting languages
    10% Swift
    10% XML

    Founded in 2021, Shrinext Limited is an e-commerce development firm. Their services include E-Commerce Development and Web Development.

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  • Gestell Technologies Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    40% Custom Software Development
    20% Mobile App Development +2
    15% Enterprise App Modernization
    5% E-Commerce Development

    Focus Areas

    10% JavaScript
    50% PHP
    10% Swift +6
    10% Typescript
    5% ASP.NET
    5% Kotlin
    5% Objective C
    3% SQL
    2% Go

    In Pune, India, Gestell Technologies is a small software development firm. The team provides Custom Software Development and Web Development.

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  • Teck Tribe Solutions SMC (Pvt Ltd) Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% Business Consulting
    15% E-Commerce Development +8
    15% IT Managed Services
    10% Search Engine Optimization
    6% Conversion Optimization
    6% Email Marketing
    6% Pay Per Click
    6% Social Media Marketing
    6% Web Design
    5% Logo

    Focus Areas

    20% JavaScript
    20% PHP
    15% Ruby +4
    15% SQL
    10% C
    10% C#
    10% C++

    IT managed services company Teck Tribe Solutions SMC (Pvt Ltd) provides IT managed services and E-Commerce Development. They were founded in 2019.

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  • Techchain Software Logotype

    Not yet reviewed

    $5,000+
    < $25 / hr
    10 - 49
    Da Nang City, Vietnam

    Services provided

    20% Web Development
    50% Blockchain
    15% Mobile App Development +2
    10% IT Strategy Consulting
    5% Cloud Consulting & SI

    Focus Areas

    10% JavaScript
    15% Redux
    15% Typescript +9
    10% AJAX
    10% Java
    10% PHP
    5% ASP.NET
    5% Kotlin
    5% Other programming & scripting languages
    5% Python
    5% SQL
    5% Swift

    Techchain Software is a Blockchain company established in 2018. The firm focuses on Blockchain and Web Development.

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  • Matican Group LLC Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Application Management & Support
    10% Application Testing +7
    10% Business Consulting
    10% Custom Software Development
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    20% JavaScript
    20% PHP
    20% SQL +4
    10% AJAX
    10% Python
    10% Redux
    10% Typescript

    Established in 2017, Matican Group LLC, a small web design company, is based in Sugar Land, Texas. Their team specializes in Web Design and UX/UI Design.

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  • Sequere Technologies Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    10 - 49
    Sahibzada Ajit Singh Nagar, India

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% Mobile App Development +4
    10% AR/VR Development
    10% Custom Software Development
    10% IoT Development
    10% Other Application Development

    Focus Areas

    10% JavaScript
    20% Kotlin
    20% Python +3
    20% Ruby
    20% Swift
    10% PHP

    Sequere Technologies, a website development company, was launched in 2010. The company focuses on Web Development and Mobile App Development, and is small.

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  • Axon Collective, LLC Logotype

    Not yet reviewed

    $50,000+
    $150 - $199 / hr
    10 - 49
    Houston, TX

    Services provided

    10% Web Development
    50% Cloud Consulting & SI
    20% Enterprise App Modernization +2
    10% Custom Software Development
    10% Low/No Code Development

    Focus Areas

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

    Axon Collective, LLC is a cloud consulting & SI company. The company is in Houston, Texas. Their team focuses on cloud consulting & SI and Custom Software Development.

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  • Reflom IT Solutions Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Search Engine Optimization
    15% Mobile App Development +7
    10% Content Marketing
    10% Custom Software Development
    10% E-Commerce Development
    10% Web Design
    5% Branding
    5% Pay Per Click
    5% Social Media Marketing

    Focus Areas

    20% JavaScript
    20% AJAX
    20% PHP +4
    10% Other programming & scripting languages
    10% Python
    10% SQL
    10% Typescript

    Based in Mandsaur, India, Reflom IT Solutions is a small SEO agency. The team offers Search Engine Optimization and Mobile App Development.

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  • V4-LAB SOFTWARE SOLUTIONS PRIVATE LIMITED Logotype

    Not yet reviewed

    $100,000+
    $25 - $49 / hr
    10 - 49
    New Delhi, India

    Services provided

    20% Web Development
    20% Web Design
    10% CRM Consulting and SI +5
    10% Custom Software Development
    10% Mobile & App Marketing
    10% Mobile App Development
    10% Social Media Marketing
    10% UX/UI Design

    Focus Areas

    10% JavaScript
    20% Kotlin
    20% PHP +4
    20% Redux
    10% Java
    10% Python
    10% Ruby

    V4-LAB SOFTWARE SOLUTIONS PRIVATE LIMITED is a web design company. Their team is in New Delhi, India. The firm provides Web Design and Web Development.

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  • Mr-Coder Logotype

    Mr-Coder

    Not yet reviewed

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

    Services provided

    20% Web Development
    10% E-Commerce Development
    10% Logo +6
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    20% PHP
    10% AJAX +6
    10% Java
    10% Kotlin
    10% SQL
    10% Swift
    10% Typescript
    10% XML

    Web development company Mr-Coder was established in 2020. Headquartered in karachi, Pakistan, the team focuses on Web Development and Social Media Marketing.

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  • Help Me Buddy IT Pvt Ltd Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    20% E-Commerce Development
    14% Low/No Code Development +8
    10% Custom Software Development
    10% Mobile App Development
    10% Search Engine Optimization
    5% Graphic Design
    5% Logo
    5% Marketing Strategy
    5% Social Media Marketing
    1% Web Design

    Focus Areas

    15% JavaScript
    35% PHP
    15% SQL +6
    10% Other programming & scripting languages
    5% AJAX
    5% ASP.NET
    5% Python
    5% Ruby
    5% Visual Basic

    Help Me Buddy IT Pvt Ltd is a small e-commerce development company based in Anand, India. The team specializes in E-Commerce Development and Web Development.

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  • Merwas Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% Mobile App Development
    15% E-Commerce Development +9
    12% Low/No Code Development
    5% Application Management & Support
    5% ERP Consulting and SI
    3% IT Strategy Consulting
    3% Logo
    2% Graphic Design
    2% IT Managed Services
    2% UX/UI Design
    1% Web Design

    Focus Areas

    10% JavaScript
    50% PHP
    20% Redux +2
    10% AJAX
    10% Java

    Merwas is a website development firm. Founded in 2015, the agency is in Amman, Jordan. Their team offers Web Development and Mobile App Development.

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  • Webtechfeeders Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% Web Design
    20% Search Engine Optimization +3
    20% Social Media Marketing
    10% Digital Strategy
    10% Graphic Design

    Focus Areas

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

    Founded in 2015, Webtechfeeders is a web design agency. The agency focuses on Web Design and Social Media Marketing.

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  • Frovis Software Logotype

    Not yet reviewed

    $5,000+
    < $25 / hr
    10 - 49
    Hanoi, Vietnam

    Services provided

    20% Web Development
    40% Mobile App Development
    20% Blockchain +2
    10% E-Commerce Development
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    30% Java
    20% Kotlin +3
    20% Swift
    10% Objective C
    10% Typescript

    Established in 2021, Frovis Software is a mobile application development firm. The small team provides Mobile App Development and Web Development.

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  • ICOMET SOFTWARE SERVICES PVT LTD Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Mobile App Development +4
    10% Blockchain
    10% E-Commerce Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    30% PHP
    20% AJAX +3
    20% Objective C
    10% Python
    10% Redux

    ICOMET SOFTWARE SERVICES PVT LTD is a custom software development firm. Headquartered in Nashik, India, the agency specializes in Custom Software Development and Web Development.

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  • Quickleaf Logotype

    Not yet reviewed

    $50,000+
    $50 - $99 / hr
    10 - 49
    Cluj-Napoca, Romania

    Services provided

    20% Web Development
    30% Mobile App Development
    10% Blockchain +4
    10% Custom Software Development
    10% IT Staff Augmentation
    10% Low/No Code Development
    10% UX/UI Design

    Focus Areas

    10% JavaScript
    70% Typescript
    20% Java

    Quickleaf is a website development firm. Located in Cluj-Napoca, Romania, their small team specializes in Web Development and Mobile App Development. The company was established in 2018.

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  • Kraftbase Logotype

    Kraftbase

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% Content Marketing
    15% Low/No Code Development +5
    15% Mobile App Development
    15% UX/UI Design
    10% Custom Software Development
    10% Social Media Marketing
    5% Search Engine Optimization

    Focus Areas

    15% JavaScript
    25% Go
    15% Java +4
    15% Typescript
    10% HTML5
    10% Kotlin
    10% SQL

    Content Marketing company Kraftbase provides Content Marketing and UX/UI Design. They were launched in 2023.

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  • Kanellis Development Labs Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    25% Mobile App Development
    15% Custom Software Development +11
    5% AR/VR Development
    5% Application Management & Support
    5% Application Testing
    5% Enterprise App Modernization
    5% IoT Development
    5% Other Application Development
    5% Wearable App Development
    3% IT Managed Services
    3% IT Strategy Consulting
    2% Cloud Consulting & SI
    2% Web Design

    Focus Areas

    15% JavaScript
    15% Java
    15% Kotlin +6
    15% SQL
    15% Swift
    10% Python
    5% HTML5
    5% Other programming & scripting languages
    5% Rust

    Launched in 2022, Kanellis Development Labs is a small application development firm headquartered in Stavroupoli, Greece. Their team focuses on Mobile App Development and Custom Software

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  • Zentrix.io Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    65% Blockchain
    25% Custom Software Development

    Focus Areas

    20% JavaScript
    60% Typescript
    20% Rust

    In Панчево, Serbia and Beograd, Serbia, Zentrix.io is a Blockchain company. The team specializes in Blockchain and Custom Software Development.

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  • Techriffic Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    10 - 49
    Karachi, Pakistan

    Services provided

    10% Web Development
    10% Branding
    10% Content Marketing +7
    10% Logo
    10% Mobile App Development
    10% Print Design
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Video Production
    10% Web Design

    Focus Areas

    20% JavaScript
    20% AJAX
    20% Ember.js +2
    20% Java
    20% Visual Basic

    Techriffic, a branding company, was founded in 2020. The team specializes in Branding and Social Media Marketing.

    Read more
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  • Rebel Design Solution Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Search Engine Optimization
    20% Web Design +5
    15% Pay Per Click
    10% Graphic Design
    10% Mobile App Development
    10% Social Media Marketing
    5% Content Marketing

    Focus Areas

    20% JavaScript
    25% PHP
    20% Other programming & scripting languages +5
    10% HTML5
    10% Python
    5% ASP.NET
    5% Ruby
    5% SQL

    Established in 2014, Rebel Design Solution, a small SEO company, is in Irvine, California. Their team provides Search Engine Optimization and Web Design.

    Read more
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  • Berries and Company Logotype

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    10 - 49
    Budapest, Hungary

    Services provided

    20% Web Development
    30% Custom Software Development
    20% Enterprise App Modernization +3
    15% Mobile App Development
    10% Low/No Code Development
    5% AI Development

    Focus Areas

    10% JavaScript
    45% C#
    10% C++ +4
    10% Kotlin
    10% Python
    10% Swift
    5% Java

    Headquartered in Budapest, Hungary, Berries and Company is a custom software development company. Their services include Custom Software Development and Web Development.

    Read more
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  • Qubitars Technologies Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% AI Development
    15% Custom Software Development +7
    12% AI Agents
    10% Mobile App Development
    10% Product Design
    8% IT Staff Augmentation
    5% AI Consulting
    5% Low/No Code Development
    5% UX/UI Design

    Focus Areas

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

    Qubitars Technologies is a small artificial intelligence development company in Gujranwala, Pakistan. Their services include Artificial Intelligence and Custom Software Development.

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Ability to deliver
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Clutch Leaders Matrix

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

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

List of the Top 15 JavaScript Development Companies

  1. Brainhub Logotype

    Brainhub

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

    Ability to deliver

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

    Service focus

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

    xfive

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

    Ability to deliver

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

    Service focus

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

    ImageX

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

    Ability to deliver

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

    Service focus

    90% Web Development
    50% JavaScript
    10% Other
    View Profile Visit Website
  4. The Software House Logotype

    The Software House

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

    Ability to deliver

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

    Service focus

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

    ATEAM SOFT SOLUTIONS

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

    Ability to deliver

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

    Service focus

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

    Airdev

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

    Ability to deliver

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

    Service focus

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

    Xmartlabs

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

    Ability to deliver

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

    Service focus

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

    Toptal

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

    Ability to deliver

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

    Service focus

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

    Softonix

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

    Ability to deliver

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

    Service focus

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

    INOXOFT

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

    Ability to deliver

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

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  11. Lizard Global Logotype

    Lizard Global

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

    Ability to deliver

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

    Service focus

    30% Web Development
    70% JavaScript
    70% Other
    View Profile Visit Website
  12. PopArt Studio Logotype

    PopArt Studio

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

    Ability to deliver

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

    Service focus

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

    GeekyAnts

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

    Ability to deliver

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

    Service focus

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

    SpdLoad

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

    Ability to deliver

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

    Service focus

    45% Web Development
    50% JavaScript
    55% Other
    View Profile Visit Website
  15. Techuz InfoWeb Pvt. Ltd. Logotype

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

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

    Service focus

    60% Web Development
    45% JavaScript
    40% Other
    View Profile Visit Website
  16. HTMLPanda Logotype

    HTMLPanda

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

    Ability to deliver

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

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  17. Sigma Software Group Logotype

    Sigma Software Group

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

    Ability to deliver

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

    Service focus

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

    Incora

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

    Ability to deliver

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

    Service focus

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

    Cleveroad

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

    Ability to deliver

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

    Service focus

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

    Brainium Information Technologies

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

    Ability to deliver

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

    Service focus

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

    WPWeb Infotech

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

    Ability to deliver

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

    Service focus

    65% Web Development
    20% JavaScript
    35% Other
    View Profile Visit Website
  23. Experion Technologies Logotype

    Experion Technologies

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

    Ability to deliver

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

    Service focus

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

    Human Made

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

    Ability to deliver

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

    Service focus

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

    Probey Services

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

    Ability to deliver

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

    Service focus

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

    Blazity

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

    Ability to deliver

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

    Service focus

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

    XWP

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

    Ability to deliver

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

    Service focus

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

    Vincit

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

    Ability to deliver

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

    Service focus

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

    PowerGate Software

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

    Ability to deliver

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

    Service focus

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

    Arcanys

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

    Ability to deliver

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

    Service focus

    30% Web Development
    20% JavaScript
    70% Other
    View Profile Visit Website

Top JavaScript Development Agencies

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

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

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

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

Clutch data shows project budgets range widely:

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

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

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

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

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

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

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

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

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

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