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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: March 31, 2026
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15 Leaders 15 Contenders

21,835 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

  • Featured

    What are Featured Providers?

    Digis, a Fiverr company (NYSE: FVRR) Logotype

    Digis, a Fiverr company (NYSE: FVRR)

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

    Services provided

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

    Focus Areas

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

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

    See all 89 projects

    Reviews mention Collaborative

    The overall sentiment regarding collaboration with Digis is highly positive. Clients praised the team's integration into existing workflows, noting effective communication and responsiveness. One client highlighted the seamless adoption of Agile methodologies, stating that Digis engineers participated actively in daily stand-ups and sprint planning. Another client appreciated the proactive suggestions for process improvements. Overall, feedback reflects a strong collaborative spirit, with no reported areas for improvement.
    • Mobile App Dev & UI/UX Design for FinTech Startup
      5.0 Jul 24, 2020

      It’s comfortable working together, and we’re quite satisfied. Their team has good communication skills and sticks to the timeline. They’re responsive and listen to our feedback. It’s a very positive experience compared to what I’ve experienced with other technical teams regarding communication, collaboration, and timelines.

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    • Development Staff Augmentation for Online Cooking Platform
      5.0 Dec 18, 2025

      The project management was highly effective and collaborative. Rather than requiring external oversight, their engineers fully adopted our internal Agile/Scrum methodologies. They synced daily with our project management team, ensuring that expectations were aligned and blockers were addressed in real-time.

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

    Web Development PROJECT HIGHLIGHT

    Hosting Platform Development for Advertising & Marketing Co

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

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% API Development
    10% Custom Software Development +7
    10% DevOps Managed Services
    10% Digital Strategy
    10% Email Marketing
    10% Graphic Design
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    5% AJAX
    5% ASP.NET +16
    5% C
    5% C++
    5% Go
    5% HTML5
    5% Java
    5% Kotlin
    5% Other programming & scripting languages
    5% PHP
    5% Python
    5% Redux
    5% Rust
    5% SQL
    5% Swift
    5% Typescript
    5% XML
    5% jquery

    Digital Strategy company Viewebit is in Ahmedabad, India. The team specializes in Digital Strategy and Email Marketing.

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  • Geek Jarvis Logotype

    Geek Jarvis

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

    Services provided

    10% Web Development
    10% Custom Software Development
    10% E-Commerce Development +10
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    5% Content Writing Services
    5% Conversion Optimization
    5% Email Marketing
    5% Graphic Design
    5% IT Strategy Consulting
    5% Pay Per Click

    Focus Areas

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

    Geek Jarvis provides comprehensive Website Development and Web Design services, including ongoing maintenance and ancillary services like Google Analytics setup. Clients praise their prompt action, 24/7 availability, and dedication to customer satisfaction, highlighting them as a reliable partner for Web Programming needs. Feedback consistently emphasizes their exceptional communication, timely delivery, and an unwavering commitment to fulfilling client expectations.

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  • CAIAT LLP Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9
    Newark, DE

    Services provided

    10% Web Development
    20% AI Consulting
    20% Robotics Process Automation +5
    15% Generative AI
    10% AI Development
    10% IT Strategy Consulting
    10% Low/No Code Development
    5% Compliance Consulting

    Focus Areas

    10% JavaScript
    45% Python
    30% Typescript +2
    10% C#
    5% Swift

    CAIAT LLP, an AI development company, specializes in Artificial Intelligence and Robotics Process Automation. The agency is based in Newark, Delaware and Yerevan, Armenia.

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  • Vimix Technologies LLP Logotype

    Vimix Technologies LLP

    Not yet reviewed

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

    Services provided

    15% Web Development
    20% API Development
    20% E-Commerce Development +4
    15% Enterprise App Modernization
    10% AR/VR Development
    10% Mobile App Development
    10% UX/UI Design

    Focus Areas

    18% JavaScript
    29% Python
    24% Other programming & scripting languages +3
    12% Redux
    11% AJAX
    6% SQL

    Vimix Technologies LLP is an e-commerce development firm. Their small team of employees is in Coimbatore, India and Sivakasi, India. Their team offers E-Commerce Development and API Development.

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  • Vayes Creative Web Agency Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Advertising
    10% Conversion Optimization +7
    10% Mobile & App Marketing
    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

    11% JavaScript
    12% AJAX
    11% ASP.NET +6
    11% Java
    11% Objective C
    11% PHP
    11% Python
    11% Ruby
    11% Swift

    Advertising company Vayes Creative Web Agency was established in 2010. Located in İstanbul, Türkiye and Samsun , Türkiye, the team offers Advertising and UX/UI Design.

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  • Tepuysoft C.A Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    Freelancer
    San Diego, Venezuela

    Services provided

    45% Web Development
    45% E-Commerce Development
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    20% PHP
    20% SQL +5
    10% AJAX
    10% ASP
    10% ASP.NET
    10% C#
    10% Java

    E-commerce development company Tepuysoft C.A is headquartered in San Diego, Venezuela. Their services include E-Commerce Development and Web Development.

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  • Tenador UK Logotype

    Tenador UK

    Not yet reviewed

    Undisclosed
    < $25 / hr
    Freelancer

    Services provided

    35% Web Development
    25% Graphic Design
    15% Low/No Code Development +2
    15% Search Engine Optimization
    10% Web Design

    Focus Areas

    20% JavaScript
    60% Other programming & scripting languages
    10% PHP +1
    10% SQL

    Located in , Tenador UK is a web development firm. They offer Web Development and Graphic Design and were founded in 2022.

    Read more
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  • VJ Flutter Developer Logotype

    VJ Flutter Developer

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer

    Services provided

    25% Web Development
    25% Mobile App Development
    15% Custom Software Development +10
    10% API Development
    5% Microservices Architecture Services
    5% Other Application Development
    5% Wearable App Development
    3% E-Commerce Development
    2% Application Management & Support
    2% IoT Development
    1% AR/VR Development
    1% Application Testing
    1% Blockchain

    Focus Areas

    30% JavaScript
    20% PHP
    15% Kotlin +4
    10% HTML5
    10% SQL
    10% Swift
    5% AJAX

    VJ Flutter Developer is a web development company. The Narot Mehra, India-based team offers Web Development and Mobile App Development.

    Read more
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  • IHCODES Logotype

    IHCODES

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Content Writing Services
    20% Search Engine Optimization +2
    20% UX/UI Design
    20% Web Design

    Focus Areas

    35% JavaScript
    35% PHP
    30% HTML5

    IHCODES is a small SEO company in Bratislava, Slovakia. The team offers Search Engine Optimization and Web Design.

    Read more
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  • Jweda Labs Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    Freelancer
    Toronto, Canada

    Services provided

    40% Web Development
    10% Branding
    10% Business Consulting +4
    10% Digital Strategy
    10% E-Commerce Development
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

    15% JavaScript
    15% HTML5
    15% Ruby +4
    15% SQL
    15% Typescript
    15% jquery
    10% Other programming & scripting languages

    Established in 2023, Jweda Labs is a website development company. Their team focuses on Web Development and Branding.

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  • BWA Agência Digital Logotype

    BWA Agência Digital

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer

    Services provided

    25% Web Development
    25% E-Commerce Development
    25% Low/No Code Development +1
    25% Mobile App Development

    Focus Areas

    30% JavaScript
    60% HTML5
    10% jquery

    Founded in 2020, BWA Agência Digital, a small web development firm, is in Jijoca de Jericoacoara, Brazil. Their services include Web Development and Mobile App Development.

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  • GLOBINARY Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    Freelancer
    Baia Mare, Romania

    Services provided

    35% Web Development
    35% Custom Software Development
    30% IT Strategy Consulting

    Focus Areas

    20% JavaScript
    40% Python
    20% Other programming & scripting languages +1
    20% SQL

    GLOBINARY, a software development firm, is in Baia Mare, Romania. Their services include Custom Software Development and Web Development.

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  • Freelance Web Designer Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    Freelancer
    Kochi, India

    Services provided

    10% Web Development
    50% Web Design
    10% E-Commerce Development +3
    10% Graphic Design
    10% Logo
    10% UX/UI Design

    Focus Areas

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

    Freelance Web Designer is a web design agency. They are located in Kochi, India and have small team. Their team offers Web Design and UX/UI Design.

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  • New Slang Logotype

    New Slang

    Not yet reviewed

    Undisclosed
    $100 - $149 / hr
    Freelancer

    Services provided

    15% Web Development
    20% Web Design
    15% E-Commerce Development +8
    10% Branding
    10% Logo
    5% Conversion Optimization
    5% Graphic Design
    5% Mobile App Development
    5% Print Design
    5% Search Engine Optimization
    5% UX/UI Design

    Focus Areas

    20% JavaScript
    20% AJAX
    20% PHP +5
    20% Ruby
    5% C#
    5% SQL
    5% Visual Basic
    5% XML

    New Slang is a web design company. Based in Saignelégier, Switzerland, their small team focuses on Web Design and E-Commerce Development. The firm was launched in 2018.

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  • ARQYM Technologies Logotype

    ARQYM Technologies

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

    Services provided

    15% Web Development
    25% Mobile App Development
    20% E-Commerce Development +4
    10% AR/VR Development
    10% Advertising
    10% Social Media Marketing
    10% UX/UI Design

    Focus Areas

    17% JavaScript
    17% AJAX
    11% Ember.js +9
    11% Swift
    10% Kotlin
    6% Objective C
    6% Python
    6% Ruby
    6% SQL
    4% C++
    3% PHP
    3% Perl

    ARQYM Technologies specializes in web and logo design services, as highlighted by a client who engaged them for redesigning their site and logo while expanding globally. The reviews emphasize ARQYM's professional communication, affordability, and expertise, resulting in a highly professional website that received positive feedback from customers and partners. The workflow was smooth, with prompt responses and no areas for improvement mentioned.

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  • Amygdal Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    10 - 49
    Sarajevo, Bosnia and Herzegovina

    Services provided

    12% Web Development
    12% Custom Software Development
    10% E-Commerce Development +11
    9% Mobile App Development
    7% Application Testing
    7% Graphic Design
    7% Logo
    7% UX/UI Design
    7% Web Design
    5% Application Management & Support
    5% Digital Strategy
    5% IT Strategy Consulting
    5% Other Application Development
    2% Wearable App Development

    Focus Areas

    10% JavaScript
    10% C#
    10% Java +13
    10% Typescript
    5% AJAX
    5% ASP.NET
    5% C
    5% C++
    5% Kotlin
    5% Objective C
    5% Other programming & scripting languages
    5% PHP
    5% Python
    5% Redux
    5% SQL
    5% Swift

    Amygdal is a software development company established in 2019. The team focuses on Custom Software Development and Web Development and is based in Sarajevo, Bosnia and Herzegovina.

    Read more
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  • Devocean Services Logotype

    5.0 2 reviews
    $10,000+
    $50 - $99 / hr
    50 - 249
    Sofia, Bulgaria

    Services provided

    15% Web Development
    25% Custom Software Development
    25% Enterprise App Modernization +3
    15% Mobile App Development
    10% Application Management & Support
    10% Application Testing

    Focus Areas

    10% JavaScript
    50% C#
    20% Typescript +3
    10% Python
    5% ASP.NET
    5% HTML5

    Devocean Services provides Website Development and Web Design services, specializing in creating functional, user-friendly platforms with modern UI/UX. Feedback highlights their exceptional project management, transparent communication, and ability to deliver projects on time and within budget. Clients appreciate their entrepreneurial expertise and professional execution.

    See all 2 projects
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  • Palnode Logotype

    Palnode

    5.0 1 review
    Undisclosed
    $50 - $99 / hr
    10 - 49

    Services provided

    10% Web Development
    20% Corporate Training & Coaching
    20% E-Commerce Development +3
    20% Search Engine Optimization
    20% Social Media Marketing
    10% AR/VR Development

    Focus Areas

    11% JavaScript
    12% Kotlin
    11% Ember.js +6
    11% Java
    11% Objective C
    11% Other programming & scripting languages
    11% PHP
    11% Python
    11% Swift

    Palnode offers Website Development services, including Web Design and Web Programming, with a focus on creating responsive, user-friendly sites that align with client branding. Feedback highlights Palnode's professionalism, effective communication, and attention to detail. Clients commend their client-centric approach and technical expertise, though some suggest initial project scope clarity and quicker feedback turnaround as areas for improvement.

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  • WE Media Communications Logotype

    WE Media Communications

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    10 - 49

    Services provided

    10% Web Development
    10% Content Writing Services
    10% Marketing Strategy +12
    10% Social Media Marketing
    10% Web Design
    5% Advertising
    5% Branding
    5% Business Consulting
    5% Content Marketing
    5% Digital Strategy
    5% Graphic Design
    5% Media Planning & Buying
    5% Product Marketing
    5% Search Engine Optimization
    5% UX/UI Design

    Focus Areas

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

    WE Media Communications is a small Marketing Strategy company founded in 2021. Their team specializes in Marketing Strategy and Social Media Marketing.

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  • Oak.Works - Out of Business Logotype

    5.0 2 reviews
    $25,000+
    $50 - $99 / hr
    2 - 9
    Savannah, GA

    Services provided

    30% Web Development
    35% E-Commerce Development
    35% Mobile App Development

    Focus Areas

    80% JavaScript
    20% Other programming & scripting languages

    Oak.Works - Out of Business was a web development company known for custom website development and backend integration services. Reviews highlight their exceptional ability to transform ideas into sophisticated websites, with 100% of feedback praising their project management and design contributions. They were particularly valued for their proactive approach and commitment to enhancing client ideas beyond initial expectations.

    See all 2 projects

    Reviews mention Easy to work with

    Clients have expressed a strong sentiment regarding Oak.Works' ease of collaboration. One client highlighted that communication is efficient, noting responses within 15–20 minutes via Slack. Additionally, the client's satisfaction is evident as they praised Rob's attentiveness and commitment to following through on promises, describing the overall experience as pleasant. This feedback underscores Oak.Works' reputation for being approachable and responsive, making them a favorable choice for project collaboration.
    • Development of Booking Platform for Tour Group Organization
      5.0 Jul 8, 2020

      One thing I love about Oak.Works is that it’s easy to get a hold of them. I don’t have to send them emails and wait 24 hours for a response. They use Slack, so I can send them a quick message and hear a response within 15–20 minutes. It’s easy to work with Rob. He listens to what we’re trying to accomplish and follows through on promises. It’s been a pleasant experience.

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    1 of 1 Web Development reviews are 5 stars
    $50,000 – $199,999 avg. project cost

    Web Development PROJECT HIGHLIGHT

    Website Design & Development for Oral Care Company

    5.0 — Oak.Works provided software development services for a direct-to-consumer website for the client’s newest product.  Read more
    Read 1 Review

    Industry Experience

    Oak.Works has demonstrated expertise in the Hospitality & Leisure and Consumer Products industries. Feedback from clients highlights their strengths in developing tailored software solutions, including an all-in-one booking platform and a sophisticated e-commerce site. Clients noted significant improvements in business performance and seamless communication. Overall sentiment reflects a high level of satisfaction, particularly in project management, responsiveness, and design input, making Oak.Works a strong candidate for organizations seeking software development in these sectors.

    Read All Reviews

    Select Industry to see insights

    Hospitality & leisure Consumer Products

    Average Project Cost Breakdown

    $50,000 to $199,999 (1) $200,000 to $999,999 (1)

    What Clients Have Said

    Clients generally perceive Oak.Works as providing strong value for money, with significant investments yielding positive outcomes. One client noted a $200,000 investment resulted in a 200%-300% increase in business, highlighting the effectiveness of their all-in-one booking platform. Another client, who invested $80,000, praised the team's ability to enhance project ideas beyond expectations. Overall, feedback indicates satisfaction with the cost relative to the quality and impact of the services provided.
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  • iWebSource Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Charlottetown, Canada

    Services provided

    30% Web Development
    40% IT Strategy Consulting
    30% Web Design

    Focus Areas

    50% JavaScript
    50% Other programming & scripting languages

    Launched in 2006, iWebSource Solutions is an IT strategy consulting company. The team focuses on IT strategy consulting and Web Design and is headquartered in Charlottetown, Canada.

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  • Blot Design Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Edinburgh , Scotland

    Services provided

    100% Web Development

    Focus Areas

    30% JavaScript
    35% AJAX
    35% PHP

    Blot Design, a small website development company, is in Edinburgh , Scotland. Their services include Web Development.

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  • SpiderLily Web Design Logotype

    SpiderLily Web Design

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    30% Web Development
    30% Web Design
    20% IT Managed Services +1
    20% Search Engine Optimization

    Focus Areas

    50% JavaScript
    50% PHP

    SpiderLily Web Design is a web design agency. In Poulsbo, Washington, the firm was founded in 2008. Their services include Web Design and Web Development.

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  • InTouch Website Design Logotype

    InTouch Website Design

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    30% Web Development
    30% Graphic Design
    30% Web Design +1
    10% Social Media Marketing

    Focus Areas

    50% JavaScript
    50% PHP

    InTouch Website Design, a graphic design agency, was established in 2005. They provides Graphic Design and Web Design.

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  • Heartland Web Development Logotype

    Heartland Web Development

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    50% Web Development
    50% Web Design

    Focus Areas

    30% JavaScript
    40% ColdFusion
    30% Other programming & scripting languages

    Heartland Web Development, a web design agency and website development firm, was launched in 2003. The small team focuses on Web Design and Web Development.

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  • True Software Ltda Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Brasília , Brazil

    Services provided

    30% Web Development
    40% Custom Software Development
    30% Mobile App Development

    Focus Areas

    50% JavaScript
    50% PHP

    Software development company True Software Ltda was established in 2002. The firm offers Custom Software Development and Mobile App Development, and is small.

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  • Digit Art Designs Ltd Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Coquitlam, Canada

    Services provided

    30% Web Development
    30% E-Commerce Development
    20% Graphic Design +1
    20% Web Design

    Focus Areas

    50% JavaScript
    50% AJAX

    E-commerce development firm Digit Art Designs Ltd was founded in 2003. In Coquitlam, Canada, the team focuses on E-Commerce Development and Web Development.

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  • Transmedia Creatives Logotype

    Transmedia Creatives

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    50% Web Development
    25% Search Engine Optimization
    25% Social Media Marketing

    Focus Areas

    30% JavaScript
    30% Java
    30% PHP +2
    5% AJAX
    5% Go

    Transmedia Creatives, a web development firm, was launched in 2016. The company provides Web Development and Search Engine Optimization, and is small.

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  • Righetti Agency Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Torino, Italy

    Services provided

    70% Web Development
    30% Search Engine Optimization

    Focus Areas

    30% JavaScript
    30% Java
    20% C++ +1
    20% SQL

    Based in Torino, Italy, Righetti Agency is a small web development company. Their services include Web Development and Search Engine Optimization.

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  • Musketeers.me Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Alexandria, VA

    Services provided

    50% Web Development
    30% Web Design
    20% Print Design

    Focus Areas

    30% JavaScript
    40% Other programming & scripting languages
    30% PHP

    In Alexandria, Virginia, Musketeers.me is a small web development company. Their services include Web Development and Web Design.

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  • Refresh Web Design Logotype

    Refresh Web Design

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    30% Web Development
    35% Search Engine Optimization
    35% Web Design

    Focus Areas

    100% JavaScript

    Launched in 2008, Refresh Web Design is a small Richmond , Virginia-based SEO services firm. Their services include Search Engine Optimization and Web Design.

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  • M&G Development Ltd Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Varna, Bulgaria

    Services provided

    50% Web Development
    50% Web Design

    Focus Areas

    30% JavaScript
    35% PHP
    35% SQL

    M&G Development Ltd is a web design agency and website development firm. Their small team is in Varna, Bulgaria. Their services include Web Design and Web Development.

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  • Underscore Design Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Lawrence, KS

    Services provided

    30% Web Development
    50% Web Design
    20% Branding

    Focus Areas

    50% JavaScript
    50% PHP

    Underscore Design is a Lawrence, Kansas-based web design agency. Founded in 2002, the team offers Web Design and Web Development.

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  • Taiko Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    San Sebastián de los Reyes, Spain

    Services provided

    50% Web Development
    30% Web Design
    20% Branding

    Focus Areas

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

    Taiko Solutions is a web development firm. The team focuses on Web Development and Web Design, and the firm is headquartered in San Sebastián de los Reyes, Spain.

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  • Wdesign Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Rosario, Argentina

    Services provided

    30% Web Development
    30% Wearable App Development
    20% Advertising +1
    20% Branding

    Focus Areas

    50% JavaScript
    50% PHP

    Wearable App Development company Wdesign was founded in 2002. The agency provides Wearable App Development and Web Development.

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  • Clappbox Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Buenos Aires, Argentina

    Services provided

    60% Web Development
    20% Digital Strategy
    20% Marketing Strategy

    Focus Areas

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

    Clappbox is a web development firm launched in 2012. The company offers Web Development and Digital Strategy.

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  • Net Solutions Pty Ltd Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    North Melbourne, Australia

    Services provided

    30% Web Development
    30% Custom Software Development
    20% Search Engine Optimization +1
    20% Web Design

    Focus Areas

    50% JavaScript
    50% PHP

    Net Solutions Pty Ltd is a custom software development firm. The firm is located in North Melbourne, Australia. Their team focuses on Custom Software Development and Web Development.

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  • iSmarts Web Development Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Preston, Australia

    Services provided

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

    Focus Areas

    50% JavaScript
    50% PHP

    ISmarts Web Development is a web design company. Founded in 2011, the team focuses on Web Design and Web Development.

    Read more
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  • Sublime Web Design Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Cardiff, Australia

    Services provided

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

    Focus Areas

    50% JavaScript
    50% PHP

    Sublime Web Design is a web design company. They are headquartered in Cardiff, Australia and have small team of experts. Their services include Web Design and Search Engine Optimization.

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  • Xykon Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Washington, DC

    Services provided

    30% Web Development
    30% Cybersecurity
    20% Cloud Consulting & SI +1
    20% IT Strategy Consulting

    Focus Areas

    50% JavaScript
    50% PHP

    Xykon is a Cybersecurity company. In Washington, District of Columbia, the company was founded in 2007. Their team focuses on Cybersecurity and Web Development.

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  • PushCode, Inc. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Gloucester , England

    Services provided

    30% Web Development
    40% Web Design
    30% Content Marketing

    Focus Areas

    50% JavaScript
    50% Ruby

    Small web design agency PushCode, Inc., is in Gloucester , England. Their services include Web Design and Content Marketing.

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  • Spindletop Digital LLC Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Houston, TX

    Services provided

    30% Web Development
    35% BI & Big Data Consulting & SI
    35% Blockchain

    Focus Areas

    50% JavaScript
    50% HTML5

    Spindletop Digital LLC is a small big data company. Established in 2022, the team provides BI & big data consulting & SI and Blockchain.

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  • WebKitty Creative Services LLC. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Las Vegas, NV

    Services provided

    30% Web Development
    30% Web Design
    20% CRM Consulting and SI +1
    20% Search Engine Optimization

    Focus Areas

    50% JavaScript
    50% HTML5

    WebKitty Creative Services LLC. Is a web design company. Established in 2010, the company is in Las Vegas, Nevada. Their services include Web Design and Web Development.

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  • Round4, LLC Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Mechanicsburg, PA

    Services provided

    30% Web Development
    30% Web Design
    15% Logo +2
    15% Video Production
    10% Corporate Photography

    Focus Areas

    50% JavaScript
    50% HTML5

    Round4, LLC is a web design agency. They provide Web Design and Web Development and are located in Mechanicsburg, Pennsylvania.

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  • CUBICALSEO Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9
    New Delhi, India

    Services provided

    10% Web Development
    25% Search Engine Optimization
    10% Content Marketing +10
    10% Mobile App Development
    10% Social Media Marketing
    5% Custom Software Development
    5% E-Commerce Development
    5% Mobile & App Marketing
    5% Pay Per Click
    5% UX/UI Design
    5% Web Design
    4% Digital Strategy
    1% Other Digital Marketing

    Focus Areas

    14% JavaScript
    57% PHP
    15% SQL +1
    14% Other programming & scripting languages

    CUBICALSEO is a SEO company. Their team is in New Delhi, India. The firm specializes in Search Engine Optimization and Social Media Marketing.

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  • Digital Edge 360 Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Kolkata, India

    Services provided

    10% Web Development
    20% Graphic Design
    20% Pay Per Click +4
    15% Search Engine Optimization
    15% Social Media Marketing
    10% Mobile App Development
    10% Web Design

    Focus Areas

    17% JavaScript
    39% PHP
    17% SQL +2
    16% AJAX
    11% Python

    Digital Edge 360 is a pay per click company. The midsize Kolkata, India-based team offers Pay Per Click and Graphic Design. The firm was founded in 2021.

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  • 2TAPP Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    50 - 249
    Linda-a-Velha, Portugal

    Services provided

    10% Web Development
    15% AR/VR Development
    12% Low/No Code Development +14
    10% Mobile App Development
    5% AI Consulting
    5% AI Development
    5% Application Testing
    5% DevOps Managed Services
    5% Engineering
    5% Enterprise App Modernization
    5% Graphic Design
    5% Product Design
    5% Robotics Process Automation
    5% UX/UI Design
    1% Custom Software Development
    1% Other Application Development
    1% Web Design

    Focus Areas

    17% JavaScript
    17% Java
    17% Python +5
    11% Objective C
    11% Redux
    11% Swift
    10% Kotlin
    6% HTML5

    2TAPP is an AR/VR development company in Linda-a-Velha, Portugal. They specialize in AR/VR development and Web Development.

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  • Fineteklabs Logotype

    Not yet reviewed

    $5,000+
    < $25 / hr
    10 - 49
    Nairobi, Kenya

    Services provided

    10% Web Development
    12% Low/No Code Development
    10% AI Development +15
    10% Custom Software Development
    5% AI Consulting
    5% AR/VR Development
    5% Application Testing
    5% Content Marketing
    5% Cybersecurity
    5% Digital Strategy
    5% E-Commerce Development
    5% IT Strategy Consulting
    5% IoT Development
    5% Product Design
    5% Social Media Marketing
    1% Mobile App Development
    1% UX/UI Design
    1% Web Design

    Focus Areas

    12% JavaScript
    18% Python
    18% SQL +7
    12% Java
    12% Objective C
    6% C#
    6% C++
    6% HTML5
    6% Redux
    4% Kotlin

    Software development firm Fineteklabs is headquartered in Nairobi, Kenya. The team offers Custom Software Development and Web Development.

    Read more
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  • SocioPedia Digital Marketing Agency Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Advertising
    10% Search Engine Optimization +13
    10% Web Design
    5% Branding
    5% Content Marketing
    5% Conversion Optimization
    5% Demand Generation Marketing
    5% Digital Strategy
    5% Graphic Design
    5% Logo
    5% Mobile App Development
    5% Pay Per Click
    5% Social Media Marketing
    5% Video Marketing
    5% Wearable App Development

    Focus Areas

    11% JavaScript
    11% Perl
    11% Python +11
    11% SQL
    11% Visual Basic
    5% AJAX
    5% ASP.NET
    5% Apex
    5% C#
    5% Ember.js
    5% Java
    5% Objective C
    5% Redux
    5% Ruby

    SocioPedia Digital Marketing Agency is an Advertising company. Based in Dehradun, India, their team offers Advertising and Search Engine Optimization.

    Read more
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  • Codbos Software Solutions Pvt Ltd Logotype

    Codbos Software Solutions Pvt Ltd

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

    Services provided

    10% Web Development
    20% E-Commerce Development
    10% API Development +6
    10% Custom Software Development
    10% Low/No Code Development
    10% Mobile App Development
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design

    Focus Areas

    20% JavaScript
    40% PHP
    20% Other programming & scripting languages +2
    10% Kotlin
    10% SQL

    Codbos is India’s leading mobile app and web app development company. Codbos provides services like web app & website development, mobile app development, graphic designing, digital marketing,

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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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