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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: May 20, 2026
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15 Leaders 15 Contenders

22,065 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), is a web development firm specializing in full-stack and custom website development. Reviews consistently highlight their exceptional project management, technical expertise, and strong communication skills. Approximately 90% of reviewers commend their proactive and reliable service, resulting in improved project delivery times and increased user satisfaction across various web applications.

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    Reviews mention Transparent

    The reviews highlight a strong sentiment of transparency associated with Digis. Clients frequently commend their clear communication and proactive updates. One client noted, "Their transparency and honesty... Communication is very good and fluid," while another emphasized, "The project management was highly professional and transparent throughout the engagement." Overall, clients express confidence in Digis' reliability and responsiveness, reinforcing the perception of them as a trustworthy partner.
    • Custom Software Development for Live Entertainment Platform
      5.0 Oct 8, 2024

      The developers from Digis seamlessly integrated into our team, following Scrum and attending all the team ceremonies, like dailies, refinement, and planning. Their transparency and honesty is something I particularly appreciate. Communication is very good and fluid, and any situation is solved promptly. They're a partner you can rely on.

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    • Custom Web App Dev for AI-Powered Meeting Notes Tool
      5.0 Jul 14, 2023

      All requests were delivered on time according to the project plan. The project management was on our side. They had a transparent communication approach, which was impressive. This included not just communication but also transparent billing.

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    • Staff Augmentation for Collaborative Desktop Company
      5.0 Mar 31, 2023

      We were looking for a long-term collaboration to augment our in-house team and hired Digis due to their excellent, transparent communication. We had super quick feedback cycles and they were excellent to work with. Their ability to upscale or downscale the team when needed was also appreciated.

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    • CRM Integration Dev for Insurance Company
      5.0 Jul 23, 2020

      We have a few partner companies working with the database, so we were very strict in terms of deadlines. I would’ve appreciated having more transparency on what was going on, but I’m not a programmer, so I’m not sure that it’s even possible. They always answered our calls and updated us on the progress of the work.

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    • Custom Software Development for IT Company
      5.0 Jul 4, 2024

      The project management was highly professional and transparent throughout the engagement. Alex delivered work promptly and proactively communicated progress, blockers, and upcoming priorities. He adapted quickly to our evolving requirements and provided thoughtful suggestions that improved our product design. His responsiveness, ownership, and precise documentation made collaboration seamless across time zones.

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    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

    Industry Experience

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

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    Select Industry to see insights

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

    Average Project Cost Breakdown

    $10,000 to $49,000 (25) $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 have consistently praised the company's cost-effectiveness and value for money. Many reviews note that Digis' pricing aligns well with client budgets while delivering high-quality work. For instance, one client highlighted that Digis offered 'good value for cost' and another mentioned a 'significant reduction in project turnaround time by 40%–50%.' Overall, the sentiment is overwhelmingly positive, with clients emphasizing their satisfaction with the quality of service relative to the investment made.
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  • Page Partner Logotype

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    2 - 9
    Berlin, Germany

    Services provided

    20% Web Development
    20% Pay Per Click
    20% Search Engine Optimization +2
    20% UX/UI Design
    20% Web Design

    Focus Areas

    35% JavaScript
    35% PHP
    15% HTML5 +2
    10% Typescript
    5% SQL

    SEO services firm Page Partner is based in Berlin, Germany. They provide Search Engine Optimization and Pay Per Click.

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  • DivitGrow Infotech Logotype

    DivitGrow Infotech

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    35% Web Development
    35% Mobile App Development
    30% AI Agents

    Focus Areas

    20% JavaScript
    20% HTML5
    20% Other programming & scripting languages +2
    20% Python
    20% Typescript

    DivitGrow Infotech, a web development company, was established in 2020. The team specializes in Web Development and Mobile App Development.

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  • Websync Ventures Logotype

    Websync Ventures

    Not yet reviewed

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

    Services provided

    25% Web Development
    30% Custom Software Development
    15% API Development +4
    10% E-Commerce Development
    10% Mobile App Development
    5% CRM Consulting and SI
    5% ERP Consulting and SI

    Focus Areas

    30% JavaScript
    30% PHP
    10% jquery +6
    5% AJAX
    5% HTML5
    5% Kotlin
    5% Other programming & scripting languages
    5% SQL
    5% Typescript

    Custom software development firm Websync Ventures specializes in Custom Software Development and Web Development. They were founded in 2025.

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  • OrionX Logotype

    OrionX

    Not yet reviewed

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

    Services provided

    15% Web Development
    25% Cloud Consulting & SI
    25% IT Strategy Consulting +3
    15% AI Agents
    15% Custom Software Development
    5% Generative AI

    Focus Areas

    40% JavaScript
    25% Python
    20% C# +1
    15% Typescript

    OrionX is an IT strategy consulting company. The team is located in Richmond, Australia, and their services include IT strategy consulting and cloud consulting & SI.

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  • TZI Digital Logotype

    TZI Digital

    Not yet reviewed

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

    Services provided

    25% Web Development
    30% AI Agents
    25% Web Design +2
    10% Custom Software Development
    10% UX/UI Design

    Focus Areas

    30% JavaScript
    70% PHP

    TZI Digital is a small AI Agents company based in Bloomfield Hills, Michigan. The team offers AI Agents and Web Design.

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  • Verbleet Logotype

    Verbleet

    Not yet reviewed

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

    Services provided

    25% Web Development
    45% Custom Software Development
    15% E-Commerce Development +2
    10% API Development
    5% AI Development

    Focus Areas

    30% JavaScript
    40% Typescript
    15% Python +2
    10% SQL
    5% Ruby

    Verbleet is a software development company in Covington, Georgia. They provide Custom Software Development and Web Development.

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    $150 Solo business Startups $400 Local Companies with issues in existing systems $1,500 Companies with new Ideas

    Custom Full-Stack Websites

    With AI, anyone can generate code, but building optimized, scalable, and future-ready applications is where we add real value. Many firms deliver fast code, but few write industry-standard, high-performance solutions that can grow with your business.
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  • Nine FG Logotype

    Not yet reviewed

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

    Services provided

    30% Web Development
    30% Mobile App Development
    15% AI Development +2
    15% UX/UI Design
    10% Business Consulting

    Focus Areas

    25% JavaScript
    25% HTML5
    25% PHP +1
    25% SQL

    Nine FG is an application development firm. Based in Levallois-Perret, France, the company was established in 2025. Their team specializes in Mobile App Development and Web Development.

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  • Immersive Studios Logotype

    Immersive Studios

    Not yet reviewed

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

    Services provided

    25% Web Development
    15% Low/No Code Development
    15% UX/UI Design +5
    10% AR/VR Development
    10% Architectural Design
    10% Custom Software Development
    10% Web Design
    5% E-Commerce Development

    Focus Areas

    17% JavaScript
    22% PHP
    21% SQL +4
    17% HTML5
    11% Python
    6% Other programming & scripting languages
    6% Swift

    Immersive Studios is a website development company headquartered in Ellwangen, Germany. They focus on Web Development and Web Design.

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  • XR Digital Logotype

    Not yet reviewed

    $10,000+
    $100 - $149 / hr
    10 - 49
    London, England

    Services provided

    15% Web Development
    20% AR/VR Development
    20% Custom Software Development +6
    15% Video Production
    10% Mobile App Development
    5% Content Marketing
    5% Pay Per Click
    5% Search Engine Optimization
    5% Social Media Marketing

    Focus Areas

    27% JavaScript
    20% Java
    20% Python +4
    13% C#
    7% C++
    7% UnrealScript
    6% PHP

    XR Digital is a custom software development firm established in 2018. The team offers Custom Software Development and AR/VR development and is headquartered in London, England and Islamabad,

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  • My LLC Logotype

    Not yet reviewed

    $250,000+
    $150 - $199 / hr
    250 - 999
    Atlanta, GA

    Services provided

    10% Web Development
    20% AR/VR Development
    20% Business Consulting +3
    20% E-Commerce Development
    20% Mobile App Development
    10% Commercial Brokerage Services

    Focus Areas

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

    My LLC, an AR/VR development company, is headquartered in Atlanta, Georgia. The team specializes in AR/VR development and E-Commerce Development.

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  • FIRST RITE IT SERVICES PVT. LTD. Logotype

    4.5 1 review
    $1,000+
    $25 - $49 / hr
    50 - 249
    Kolkata, India

    Services provided

    15% Web Development
    15% Custom Software Development
    15% Web Design +8
    10% AR/VR Development
    10% E-Commerce Development
    10% Mobile App Development
    5% API Development
    5% Email Marketing
    5% IoT Development
    5% Marketing Strategy
    5% Social Media Marketing

    Focus Areas

    20% JavaScript
    25% PHP
    20% HTML5 +3
    15% Java
    10% Kotlin
    10% jquery

    First Rite IT Services Pvt. Ltd. is a boutique digital agency with over 10+ years of experience, offering comprehensive services in web design and development, mobile app, and custom software

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  • Ingenious Hi-Tech Pvt Ltd Logotype

    5.0 1 review
    $1,000+
    < $25 / hr
    50 - 249
    Sahibzada Ajit Singh Nagar, India

    Services provided

    10% Web Development
    35% Search Engine Optimization
    20% Pay Per Click +5
    10% Low/No Code Development
    10% Social Media Marketing
    5% Content Marketing
    5% Digital Strategy
    5% Mobile App Development

    Focus Areas

    25% JavaScript
    10% PHP
    10% Python +9
    10% Ruby
    10% Typescript
    5% Kotlin
    5% Objective C
    5% Redux
    5% SQL
    5% Swift
    5% Visual Basic
    5% XML

    Ingenious Hi-Tech Pvt Ltd specializes in Website Development, Web Design, and digital marketing services, offering comprehensive solutions from logo creation to online development and SEO optimization. Client reviews highlight their timely delivery, responsiveness, and effective strategies, indicating successful web programming and marketing support that significantly enhanced the client's online business presence.

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  • GlobeSync Technologies Logotype

    5.0 1 review
    $5,000+
    $25 - $49 / hr
    50 - 249
    Ahmedabad, India

    Services provided

    10% Web Development
    10% AI Development
    10% Blockchain +7
    10% Custom Software Development
    10% Cybersecurity
    10% E-Commerce Development
    10% IoT Development
    10% Mobile App Development
    10% Robotics Process Automation
    10% UX/UI Design

    Focus Areas

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

    GlobeSync Technologies offers comprehensive services in Website Development, Web Design, and Online Development. The reviews highlight their ability to deliver complex projects within tight deadlines, showcasing effective project management and responsive communication. Clients appreciate the value for cost, high ratings, and their impressive capability to handle tasks that other companies avoid, although they could improve by focusing more on the planning phase.

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  • GreenSoft Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    Freelancer
    Bielsko-Biała, Poland

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Enterprise App Modernization +2
    20% Mobile App Development
    20% Other Application Development

    Focus Areas

    50% JavaScript
    50% PHP

    GreenSoft is a custom software development firm. They were launched in 2016, and their services include Custom Software Development and Enterprise App Modernization.

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  • In Phase Solutions Logotype

    Not yet reviewed

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

    Services provided

    50% Web Development
    20% Web Design
    10% Digital Strategy +3
    10% E-Commerce Development
    5% Email Marketing
    5% Mobile App Development

    Focus Areas

    20% JavaScript
    50% PHP
    30% Other programming & scripting languages

    In Phase Solutions is a web development company. They provide Web Development and Web Design and were founded in 2018.

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  • Logan Poynter Development Logotype

    Not yet reviewed

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

    Services provided

    30% Web Development
    20% Social Media Marketing
    20% Web Design +2
    15% Content Marketing
    15% Search Engine Optimization

    Focus Areas

    40% JavaScript
    30% SQL
    20% PHP +1
    10% Python

    Launched in 2020, Logan Poynter Development is a web development firm. The team specializes in Web Development and Social Media Marketing and is headquartered in Somerset, Kentucky.

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  • CausewaySoft LTD Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    Freelancer
    Belfast, Northern Ireland

    Services provided

    80% Web Development
    20% Mobile App Development

    Focus Areas

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

    Based in Belfast, Northern Ireland, CausewaySoft LTD is a small web development company. The team provides Web Development and Mobile App Development.

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  • Uncanny Studio, LLC Logotype

    Not yet reviewed

    $10,000+
    $100 - $149 / hr
    Freelancer
    Brooklyn, NY

    Services provided

    30% Web Development
    30% Web Design
    15% E-Commerce Development +2
    15% UX/UI Design
    10% Graphic Design

    Focus Areas

    40% JavaScript
    50% PHP
    10% AJAX

    Located in Brooklyn, New York, Uncanny Studio, LLC is a web design company. They offer Web Design and Web Development and were launched in 2018.

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  • v(dev) Logotype

    Not yet reviewed

    $25,000+
    $25 - $49 / hr
    50 - 249
    Rio de Janeiro, Brazil

    Services provided

    20% Web Development
    40% Custom Software Development
    10% AI Development +4
    10% Generative AI
    10% Mobile App Development
    5% Enterprise App Modernization
    5% Low/No Code Development

    Focus Areas

    15% JavaScript
    15% C#
    15% Kotlin +5
    15% Ruby
    10% ASP.NET
    10% Java
    10% Python
    10% SQL

    Based in Rio de Janeiro, Brazil and Perth, Australia, v(dev) is a software development company. They specialize in Custom Software Development and Web Development and were launched in 2003.

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  • simon says web design Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    Freelancer
    Mansfield, England

    Services provided

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

    Focus Areas

    35% JavaScript
    55% PHP
    10% SQL

    Launched in 2006, simon says web design is a small Mansfield, England-based SEO services firm. Their team provides Search Engine Optimization and Web Development.

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  • MindRuby Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    50 - 249
    Indore, India

    Services provided

    15% Web Development
    15% BI & Big Data Consulting & SI
    15% Cloud Consulting & SI +4
    15% Custom Software Development
    15% IoT Development
    15% Mobile App Development
    10% CRM Consulting and SI

    Focus Areas

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

    Launched in 2019, MindRuby is a midsize Indore, India-based big data company. Their services include BI & big data consulting & SI and cloud consulting & SI.

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  • Ignyous Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    Freelancer
    Las Vegas, NV

    Services provided

    35% Web Development
    35% Web Design
    30% E-Commerce Development

    Focus Areas

    35% JavaScript
    65% PHP

    Based in Las Vegas, Nevada, Ignyous is a small web design company. The team focuses on Web Design and Web Development.

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  • Emcom Technology Logotype

    Emcom Technology

    Not yet reviewed

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

    Services provided

    50% Web Development
    30% Search Engine Optimization
    20% Custom Software Development

    Focus Areas

    20% JavaScript
    35% HTML5
    35% PHP +1
    10% Other programming & scripting languages

    Emcom Technology is a website development company. Their small team of employees is in Springfield, Tennessee. Their team specializes in Web Development and Search Engine Optimization.

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  • Triophore Technologies Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Kattangal, India

    Services provided

    10% Web Development
    20% Blockchain
    20% Cloud Consulting & SI +4
    20% Mobile App Development
    10% AI Development
    10% IoT Development
    10% Low/No Code Development

    Focus Areas

    25% JavaScript
    20% Java
    15% Python +5
    10% Go
    10% Kotlin
    10% Rust
    5% C#
    5% HTML5

    Triophore Technologies is a cloud consulting & SI company. Founded in 2015, their team focuses on cloud consulting & SI and Web Development.

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  • DevDefy Logotype

    Not yet reviewed

    Undisclosed
    $50 - $99 / hr
    50 - 249
    Cincinnati, OH

    Services provided

    10% Web Development
    20% Custom Software Development
    20% DevOps Managed Services +3
    20% Generative AI
    20% Mobile App Development
    10% AR/VR Development

    Focus Areas

    25% JavaScript
    25% HTML5
    25% Typescript +1
    25% jquery

    Software development firm DevDefy is headquartered in Cincinnati, Ohio. They provide Custom Software Development and Mobile App Development and were established in 2017.

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  • Preesoft Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    35% Custom Software Development
    20% Mobile App Development +2
    15% AI Development
    10% E-Commerce Development

    Focus Areas

    15% JavaScript
    15% Typescript
    10% Kotlin +11
    10% Swift
    5% AJAX
    5% HTML5
    5% Java
    5% Other programming & scripting languages
    5% PHP
    5% Python
    5% Redux
    5% SQL
    5% XML
    5% jquery

    Software development company Preesoft is headquartered in Lahore, Pakistan. They focus on Custom Software Development and Web Development.

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  • Devndespro Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    Freelancer
    Stavanger, Norway

    Services provided

    40% Web Development
    30% Custom Software Development
    20% Web Design +2
    5% E-Commerce Development
    5% Mobile App Development

    Focus Areas

    30% JavaScript
    15% HTML5
    15% jquery +4
    10% ASP.NET
    10% SQL
    10% Typescript
    10% XML

    Web development firm Devndespro was launched in 2025. The agency provides Web Development and Custom Software Development, and is small.

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  • Webflow Developers Logotype

    Webflow Developers

    Not yet reviewed

    Undisclosed
    < $25 / hr
    Freelancer

    Services provided

    50% Web Development
    50% Web Design

    Focus Areas

    20% JavaScript
    80% HTML5

    Webflow Developers is a website development firm and web design company. Their small team is located in Gurugram, India and offers Web Development and Web Design. The company was founded in 2026.

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  • Yasir Shabbir Logotype

    Yasir Shabbir

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    Freelancer

    Services provided

    40% Web Development
    40% Web Design
    20% Branding

    Focus Areas

    30% JavaScript
    40% PHP
    20% Typescript +1
    10% SQL

    Website development company Yasir Shabbir was founded in 2018. The small team offers Web Development and Web Design.

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  • TechLatitude Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    25% Digital Strategy
    15% E-Commerce Development +4
    15% Mobile App Development
    10% AR/VR Development
    10% Custom Software Development
    10% Web Design

    Focus Areas

    33% JavaScript
    44% PHP
    23% SQL

    TechLatitude is a Digital Strategy company. In Lahore, Pakistan, their team provides Digital Strategy and E-Commerce Development.

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  • D3 IT Solutions.com Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Blockchain
    10% Custom Software Development +7
    10% Direct Marketing
    10% E-Commerce Development
    10% Graphic Design
    10% Logo
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

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

    Launched in 2015, D3 IT Solutions.com is a custom software development company. The agency offers Custom Software Development and UX/UI Design, and is small.

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  • MCB Soft Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% IoT Development
    30% Custom Software Development +1
    20% Mobile App Development

    Focus Areas

    20% JavaScript
    30% PHP
    20% C++ +3
    10% AJAX
    10% C
    10% Java

    IoT development company MCB Soft was founded in 2014. In Brașov, Romania, the team focuses on IoT development and Custom Software Development.

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  • PMA Latam Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9
    Buenos Aires, Argentina

    Services provided

    20% Web Development
    20% Branding
    20% Content Marketing +2
    20% Marketing Strategy
    20% UX/UI Design

    Focus Areas

    10% JavaScript
    20% Other programming & scripting languages
    10% C++ +6
    10% Java
    10% Kotlin
    10% Objective C
    10% Python
    10% Ruby
    10% SQL

    PMA Latam is a branding firm established in 2012. Based in Buenos Aires, Argentina and Miami, Florida, the team offers Branding and Marketing Strategy.

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  • eHawkers Marketing Logotype

    Not yet reviewed

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

    Services provided

    17% Web Development
    20% E-Commerce Development
    20% Pay Per Click +5
    15% Social Media Marketing
    10% Mobile App Development
    8% Branding
    5% Graphic Design
    5% Search Engine Optimization

    Focus Areas

    30% JavaScript
    35% HTML5
    15% jquery +2
    10% Redux
    10% SQL

    EHawkers Marketing is a small PPC company. Founded in 2020, the team specializes in Pay Per Click and E-Commerce Development.

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  • Ibex Techlogic Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Mobile App Development
    8% Social Media Marketing +12
    6% Content Marketing
    6% Conversion Optimization
    6% Custom Software Development
    6% E-Commerce Development
    6% Graphic Design
    6% Logo
    6% Mobile & App Marketing
    6% Other Digital Marketing
    6% Pay Per Click
    6% Search Engine Optimization
    6% UX/UI Design
    6% Web Design

    Focus Areas

    10% JavaScript
    50% PHP
    20% Kotlin +1
    20% SQL

    Ibex Techlogic, an application development company, was founded in 2015. The company provides Mobile App Development and Web Development, and is small.

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  • Switch Business Solutions Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    35% IT Managed Services
    20% Custom Software Development +4
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    5% IT Strategy Consulting

    Focus Areas

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

    IT managed services company Switch Business Solutions provides IT managed services and Custom Software Development. They were launched in 2017.

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  • Level Up Development Logotype

    Not yet reviewed

    $50,000+
    Undisclosed
    10 - 49
    Indianapolis, IN

    Services provided

    10% Web Development
    20% Custom Software Development
    20% UX/UI Design +7
    10% Application Management & Support
    10% Blockchain
    10% Mobile App Development
    5% AI Development
    5% Application Testing
    5% Enterprise App Modernization
    5% IoT Development

    Focus Areas

    25% JavaScript
    10% ASP.NET
    10% C# +10
    10% Java
    5% C++
    5% Objective C
    5% Other programming & scripting languages
    5% Python
    5% Redux
    5% Ruby
    5% SQL
    5% Swift
    5% Typescript

    Level Up Development is an user experience design company. Established in 2010, the agency focuses on UX/UI Design and Custom Software Development.

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  • Pitechnologies Pvt. Ltd Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    40% Search Engine Optimization
    30% Web Design +2
    5% Content Marketing
    5% Mobile App Development

    Focus Areas

    15% JavaScript
    35% Other programming & scripting languages
    30% PHP +1
    20% Java

    Pitechnologies Pvt. Ltd is an Indore, India-based SEO company. Established in 2009, the team offers Search Engine Optimization and Web Design.

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  • Régens Plc Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Mobile App Development +5
    10% BI & Big Data Consulting & SI
    10% IT Strategy Consulting
    10% Unified Communications Consulting & SI
    5% Digital Strategy
    5% UX/UI Design

    Focus Areas

    15% JavaScript
    20% Java
    18% ASP.NET +7
    13% PHP
    8% SQL
    6% XML
    5% AJAX
    5% ASP
    5% C#
    5% Swift

    Based in Budapest, Hungary, Régens Plc is a custom software development firm. The team specializes in Custom Software Development and Mobile App Development.

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  • BoxCrush Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

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

    BoxCrush is an user experience agency. Launched in 2002, the team focuses on UX/UI Design and Content Marketing.

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  • 30dps aka HubSpot Gurus Logotype

    Not yet reviewed

    $5,000+
    $150 - $199 / hr
    10 - 49
    Colorado Springs, CO

    Services provided

    25% Web Development
    15% Enterprise App Modernization
    10% UX/UI Design +9
    10% Web Design
    5% CRM Consulting and SI
    5% Content Marketing
    5% Conversion Optimization
    5% Digital Strategy
    5% E-Commerce Development
    5% Email Marketing
    5% Mobile App Development
    5% Search Engine Optimization

    Focus Areas

    10% JavaScript
    40% Other programming & scripting languages
    25% PHP +3
    10% ColdFusion
    10% SQL
    5% AJAX

    In Colorado Springs, Colorado, 30dps aka HubSpot Gurus is a web development company. Established in 1989, the team specializes in Web Development and Enterprise App Modernization.

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  • Sufle Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% Cloud Consulting & SI
    20% Custom Software Development +2
    20% Cybersecurity
    10% IT Managed Services

    Focus Areas

    25% JavaScript
    50% Python
    25% AJAX

    Sufle is a cloud consulting & SI company. The Istanbul, Türkiye-based company was founded in 2018. Their team focuses on cloud consulting & SI and Custom Software Development.

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  • Arobit Business Solutions Pvt. Ltd. Logotype

    Arobit Business Solutions Pvt. Ltd.

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Mobile App Development
    10% Mobile & App Marketing +9
    10% Pay Per Click
    10% Social Media Marketing
    5% Content Marketing
    5% Digital Strategy
    5% ERP Consulting and SI
    5% Search Engine Optimization
    5% Web Design
    3% Branding
    2% Advertising

    Focus Areas

    15% JavaScript
    35% PHP
    20% AJAX +3
    20% SQL
    5% Python
    5% XML

    Arobit Business Solutions Pvt. Ltd. Is a small app development company launched in 2011. Their team focuses on Mobile App Development and Web Development.

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  • think3 Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% Other Marketing
    15% Search Engine Optimization +7
    10% Branding
    10% Graphic Design
    10% Marketing Strategy
    10% Web Design
    5% Digital Strategy
    5% E-Commerce Development
    5% Social Media Marketing

    Focus Areas

    20% JavaScript
    60% PHP
    20% SQL

    Headquartered in Derby, England, think3 is an Other Marketing company. Established in 2018, the team provides Other Marketing and Search Engine Optimization.

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  • One Search Pro Digital Marketing Agency Logotype

    Not yet reviewed

    $10,000+
    Undisclosed
    10 - 49
    Cheras, Malaysia

    Services provided

    15% Web Development
    20% Search Engine Optimization
    20% Social Media Marketing +3
    15% Branding
    15% Conversion Optimization
    15% Web Design

    Focus Areas

    20% JavaScript
    50% Other programming & scripting languages
    5% C +5
    5% C++
    5% Ember.js
    5% Java
    5% Python
    5% XML

    One Search Pro Digital Marketing Agency is a social media marketing company launched in 2019. The small team offers Social Media Marketing and Search Engine Optimization.

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  • Viste Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    80% E-Commerce Development

    Focus Areas

    15% JavaScript
    60% PHP
    15% HTML5 +1
    10% AJAX

    Launched in 2012, Viste is an e-commerce development firm. Located in Dobrich, Bulgaria and Varna, Bulgaria, the team provides E-Commerce Development and Web Development.

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  • Enigma Ai Logotype

    Not yet reviewed

    $50,000+
    $25 - $49 / hr
    10 - 49
    Lahore, Pakistan

    Services provided

    10% Web Development
    10% Branding
    10% Custom Software Development +9
    10% E-Commerce Development
    10% Low/No Code Development
    10% Mobile App Development
    10% Pay Per Click
    10% Social Media Marketing
    5% Content Writing Services
    5% Graphic Design
    5% Search Engine Optimization
    5% UX/UI Design

    Focus Areas

    25% JavaScript
    20% Java
    20% PHP +2
    20% Python
    15% Typescript

    Enigma Ai, a software development firm, was established in 2019. The team offers Custom Software Development and Branding.

    Read more
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  • Techno Sharks Logotype

    Techno Sharks

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Graphic Design
    20% Mobile App Development +4
    20% Search Engine Optimization
    15% Low/No Code Development
    10% Custom Software Development
    5% UX/UI Design

    Focus Areas

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

    SEO services firm Techno Sharks provides Search Engine Optimization and Graphic Design. They are based in Sahibzada Ajit Singh Nagar, India.

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  • ImagiNET Ventures Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Chennai, India

    Services provided

    10% Web Development
    10% Branding
    10% Custom Software Development +7
    10% E-Commerce Development
    10% Low/No Code Development
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    25% JavaScript
    25% HTML5
    25% Other programming & scripting languages +1
    25% SQL

    Software development company ImagiNET Ventures provides Custom Software Development and Web Development. They were founded in 2006.

    Read more
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  • Creative Tech Solution Logotype

    Creative Tech Solution

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% Mobile App Development +5
    10% Logo
    10% Search Engine Optimization
    10% Social Media Marketing
    5% Graphic Design
    5% Web Design

    Focus Areas

    10% JavaScript
    30% PHP
    20% Python +4
    10% C
    10% C++
    10% Java
    10% SQL

    Website development firm Creative Tech Solution provides Web Development and Mobile App Development. They are in Ahmedabad, India and Sirohi, India.

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

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

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

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Ability to deliver
Focus
Clutch Leaders Matrix

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

1 ImageX
2 xfive
3 Brainhub
4 The Software House
5 Xmartlabs
6 Airdev
7 WPWeb Infotech
8 Lizard Global
9 PopArt Studio
10 Softonix
11 GeekyAnts
12 INOXOFT
13 Scopic
14 HTMLPanda
15 Vention

List of the Top 15 JavaScript Development Companies

  1. ImageX Logotype

    ImageX

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

    Ability to deliver

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

    Service focus

    90% Web Development
    50% JavaScript
    10% Other
    View Profile Visit Website
  2. xfive Logotype

    xfive

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

    Ability to deliver

    39.3/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

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

    Brainhub

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

    Ability to deliver

    39.3/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    45% Web Development
    75% JavaScript
    55% Other
    View Profile Visit Website
  4. The Software House Logotype

    The Software House

    $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
  5. 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
  6. Airdev Logotype

    Airdev

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

    Ability to deliver

    38.5/40.0
    19.2/20 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. 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
  8. 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
  9. 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
  10. Softonix Logotype

    Softonix

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

    Ability to deliver

    36.3/40.0
    17.4/20 Reviews
    10/10 Clients & Experience
    8.9/10 Market Presence

    Service focus

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

    INOXOFT

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

    Ability to deliver

    39.6/40.0
    19.6/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  13. Scopic Logotype

    Scopic

    $10,000+
    $50 - $99 / hr
    250 - 999
    Marlborough, MA

    Ability to deliver

    39.3/40.0
    19.6/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    25% Web Development
    25% JavaScript
    75% Other
    View Profile Visit Website
  14. 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
  16. SpdLoad Logotype

    SpdLoad

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

    Ability to deliver

    36.4/40.0
    16.6/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    45% Web Development
    50% JavaScript
    55% Other
    View Profile Visit Website
  17. 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
  18. 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
  19. Incora Logotype

    Incora

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

    Ability to deliver

    37/40.0
    18/20 Reviews
    10/10 Clients & Experience
    9/10 Market Presence

    Service focus

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

    Toptal

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

    Ability to deliver

    38.3/40.0
    18.4/20 Reviews
    9.9/10 Clients & Experience
    10/10 Market Presence

    Service focus

    15% Web Development
    25% JavaScript
    85% Other
    View Profile Visit Website
  21. 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
  22. 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
  23. Blazity Logotype

    Blazity

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

    Ability to deliver

    37.5/40.0
    18.2/20 Reviews
    10/10 Clients & Experience
    9.3/10 Market Presence

    Service focus

    50% Web Development
    70% JavaScript
    50% Other
    View Profile Visit Website
  24. Experion Technologies Logotype

    Experion Technologies

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

    Ability to deliver

    36.5/40.0
    16.8/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    20% Web Development
    25% JavaScript
    80% 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. 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
  27. XWP Logotype

    XWP

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

    Ability to deliver

    35.5/40.0
    15.8/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

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

    Flowout

    $5,000+
    $50 - $99 / hr
    50 - 249
    Maribor, Slovenia

    Ability to deliver

    36.1/40.0
    20/20 Reviews
    10/10 Clients & Experience
    6.1/10 Market Presence

    Service focus

    40% Web Development
    100% JavaScript
    60% Other
    View Profile Visit Website
  29. Sigma Software Group Logotype

    Sigma Software Group

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

    Ability to deliver

    37.6/40.0
    17.8/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

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

    Merixstudio

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

    Ability to deliver

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

    Service focus

    50% Web Development
    10% JavaScript
    50% 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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