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Top JavaScript Developers

JavaScript powers everything from interactive websites to complex enterprise applications. Partnering with an experienced JavaScript development agency ensures your product is fast, secure, and ready to scale. Clutch makes it easy to find trusted providers by publishing in-depth, verified client reviews and transparent performance data. Use our filters to sort agencies by budget, location, framework expertise, and more. Looking for regional specialists? Browse firms in the United States, United Kingdom, or Canada to compare portfolios and pricing in your market. Start exploring today and shortlist partners that align with your goals.
Ratings Updated: December 27, 2025
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15 Leaders 15 Contenders

21,456 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

  • Featured

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    Digis, a Fiverr company (NYSE: FVRR) Logotype

    Digis, a Fiverr company (NYSE: FVRR)

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

    Services provided

    50% Web Development
    50% Custom Software Development

    Focus Areas

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

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

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    Reviews mention Unique expertise

    Clients consistently commend Digis for their unique expertise and commitment to excellence. One client highlighted their 'unwavering commitment' and 'meticulous attention to detail,' which resulted in a robust UI solution that significantly enhanced user experience. Another praised their 'exceptional communication' and 'sheer expertise' in sourcing talented engineers, leading to a highly successful partnership. Overall, the sentiment reflects strong satisfaction with Digis' specialized knowledge and proactive problem-solving abilities, establishing them as a leader in their field.
    • Full Stack Software Development for Software Company
      5.0 Mar 22, 2024

      Digi's project manager, Taniya, and the developers assigned to the project were very experts in their field, friendly, very accommodative, detailed, and willing to go the extra mile to meet our aggressive targets. Digi's project manager, Taniya, handed it very responsibly and on time, constantly bridging the gap between us and the developers. Can't ask for a better manager.

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    • Web & Mobile App Dev for Communication Software Co
      5.0 Mar 6, 2024

      The engineers from Digis are instrumental in maintaining our software and developing innovative features for both our web and mobile applications. What truly stood out was the exceptional communication, the rapidity in sourcing new talent, and the sheer expertise of the engineers they introduced to us. We were never disappointed, as they consistently provided support whenever we needed it.

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    • Custom Data-Driven Product Dev for Email Marketing Platform
      5.0 May 10, 2022

      The project built in high standards, high expertise, with advanced architecture and technologies. Team always suggested improvements and delivered on time. Bringing really great people, usually can find such dedication and good will with vendors as we found here.

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    • E-Commerce Dev for Digital Commerce Agency
      5.0 Mar 23, 2022

      Andriy shows interest in growth, he constantly asks questions, he looks for points of improvement and he is always interested to hear what others have to say about his implementation. In general, Andriy showed pretty strong development skill, he is a great asset to the team.

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    • Tracking Platform Dev for Telecommunications Firm
      4.5 Oct 15, 2020

      We communicate through Skype mainly, and the project management was doing very well. The skills of their developers are very good. Quick comms.

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

    Reviewed 6 times in the past 6 months

    Recent reviews for Digis highlight a strong overall sentiment, emphasizing excellent communication, timely delivery, and effective project management. Clients praised their quality of work, with one noting a 25% reduction in bug backlog and another highlighting increased conversions and improved user satisfaction. Specific feedback included the ability to adapt quickly to project needs and a solid understanding of Agile methodologies. No significant areas for improvement were identified, indicating high client satisfaction.
    Read 6 Recent Reviews
    5 of 5 JavaScript reviews are 5 stars
    2 new reviews for JavaScript in past 6 months
    $10,000 – $49,000 avg. project cost

    JavaScript Experience

    Digis has received overwhelmingly positive feedback from clients regarding their JavaScript services, with 92% of reviews highlighting strong project management and timely delivery. Clients frequently commend their top-tier developers and effective communication, resulting in faster feature delivery and enhanced productivity. Notably, 100% of reviewers did not identify any areas for improvement. The consistent ability to meet deadlines and provide quality solutions has made Digis a preferred partner for various projects, demonstrating their expertise in JavaScript-based applications.

    Read Most Recent Review
    16 of 22 Web Development reviews are 5 stars
    1 new review for Web Development in past 6 months
    $50,000 – $199,999 avg. project cost

    Web Development PROJECT HIGHLIGHT

    Development Staff Augmentation for Online Cooking Platform

    5.0 — Digis, a Fiverr company (NYSE: FVRR) provides staff augmentation services for an online cooking platform. The team is fully integrated into the client's existing agile squads and contributes to the Read more
    Read 22 Reviews
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  • InSync Media Logotype

    5.0 4 reviews
    $1,000+
    $100 - $149 / hr
    2 - 9
    Montrose, CO

    Services provided

    10% Web Development
    15% Pay Per Click
    15% Search Engine Optimization +23
    5% Branding
    5% Conversion Optimization
    5% E-Commerce Development
    5% Marketing Strategy
    5% Social Media Marketing
    5% Web Design
    3% Advertising
    3% Direct Marketing
    2% Affiliate Marketing
    2% Business Consulting
    2% Content Marketing
    2% Digital Strategy
    2% Email Marketing
    2% Graphic Design
    2% Logo
    2% Media Planning & Buying
    2% Mobile & App Marketing
    1% Cybersecurity
    1% Market Research
    1% Mobile App Development
    1% Packaging Design
    1% Print Design
    1% Product Design

    Focus Areas

    15% JavaScript
    15% AJAX
    15% Java +4
    15% PHP
    15% Ruby
    15% SQL
    10% XML

    InSync Media provides Website Development, SEO, and website management services. Reviews highlight the company's attentive project management, timely responsiveness, and knowledgeable team. Clients report fruitful results and consistently meeting deliverables, underscoring InSync Media's professionalism and effectiveness.

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  • GAIA Coop Software Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    10 - 49
    Villa La Angostura, Argentina

    Services provided

    25% Web Development
    25% Application Testing
    25% Mobile App Development +2
    15% Custom Software Development
    10% AR/VR Development

    Focus Areas

    37% JavaScript
    26% Python
    15% Elixir +2
    11% Redux
    11% Rust

    Web development firm GAIA Coop Software is headquartered in Villa La Angostura, Argentina and Quilmes, Argentina. Their services include Web Development and Mobile App Development.

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  • DigitalSphere Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Mobile App Development +3
    15% E-Commerce Development
    15% IT Strategy Consulting
    10% Graphic Design

    Focus Areas

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

    DigitalSphere is a Gliwice, Poland-based software development company. They focus on Custom Software Development and Web Development and were established in 2010.

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  • Explore And Do Technologies Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    10% Custom Software Development
    10% E-Commerce Development +6
    10% Graphic Design
    10% Mobile App Development
    10% Other Application Development
    10% UX/UI Design
    10% Web Design
    5% Wearable App Development

    Focus Areas

    10% JavaScript
    10% C#
    10% C++ +8
    10% Java
    10% Kotlin
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    5% Other programming & scripting languages
    5% Swift

    Explore And Do Technologies, a web development firm, is based in Waterford, Connecticut. Their services include Web Development and Web Design.

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  • Webosta Logotype

    Not yet reviewed

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

    Services provided

    16% Web Development
    17% E-Commerce Development
    15% Custom Software Development +9
    15% Mobile App Development
    15% Web Design
    10% Graphic Design
    2% Corporate Photography
    2% IT Managed Services
    2% Logo
    2% Packaging Design
    2% Print Design
    2% UX/UI Design

    Focus Areas

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

    Webosta is an e-commerce development company. Founded in 2017, the company focuses on E-Commerce Development and Web Development.

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  • s.p. Digital Logotype

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

    Services provided

    15% Web Development
    15% Custom Software Development
    10% Branding +6
    10% Cloud Consulting & SI
    10% Content Marketing
    10% E-Commerce Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    20% JavaScript
    25% PHP
    15% XML +5
    10% AJAX
    10% SQL
    10% Typescript
    5% HTML5
    5% Other programming & scripting languages

    s.p. Digital offers branding and web development services, including creating a strong brand identity and a professional online presence optimized for search engines. Reviews highlight their timely delivery, excellent communication, and high-quality results that exceed expectations. Clients appreciate the team's professionalism, smooth project management, and significant increases in brand awareness and website traffic.

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  • Sillyweb Logotype

    Sillyweb

    Not yet reviewed

    Undisclosed
    < $25 / hr
    Freelancer

    Services provided

    50% Web Development
    25% Graphic Design
    15% Web Design +1
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    10% Ember.js
    10% Kotlin +7
    10% Other programming & scripting languages
    10% PHP
    10% Perl
    10% Python
    10% Redux
    10% Swift
    10% UnrealScript

    Sillyweb is a website development firm based in Calgary, Canada. The team offers Web Development and Web Design.

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  • Thewebgates Logotype

    Not yet reviewed

    $10,000+
    $50 - $99 / hr
    10 - 49
    New York, NY

    Services provided

    39% Web Development
    61% Blockchain

    Focus Areas

    28% JavaScript
    22% Python
    20% Kotlin +2
    20% SQL
    10% Swift

    In New York, New York, Thewebgates is a Blockchain company. Established in 2007, the team offers Blockchain and Web Development.

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  • TopNotch Innovative Technologies Logotype

    TopNotch Innovative Technologies

    Not yet reviewed

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

    Services provided

    35% Web Development
    40% Web Design
    25% Mobile App Development

    Focus Areas

    20% JavaScript
    30% ASP.NET
    30% PHP +2
    10% AJAX
    10% C++

    TopNotch Innovative Technologies is a web design company. Established in 2011, the team provides Web Design and Web Development. The agency is in.

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  • New Power Host Ltd Logotype

    Not yet reviewed

    $10,000+
    $150 - $199 / hr
    10 - 49
    London, England

    Services provided

    20% Web Development
    20% IT Strategy Consulting
    20% Other IT Consulting and SI +2
    20% UX/UI Design
    20% Web Design

    Focus Areas

    35% JavaScript
    40% PHP
    20% SQL +1
    5% XML

    New Power Host Ltd is an UX agency. Their small team is based in London, England. Their team provides UX/UI Design and IT strategy consulting.

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  • Cadence Labs Logotype

    Not yet reviewed

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

    Services provided

    35% Web Development
    35% Custom Software Development
    20% E-Commerce Development +1
    10% Mobile App Development

    Focus Areas

    20% JavaScript
    70% PHP
    10% SQL

    Launched in 2014, Cadence Labs is a software development firm. Their services include Custom Software Development and Web Development.

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  • AntStack Technologies Pvt Ltd Logotype

    Not yet reviewed

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

    Services provided

    30% Web Development
    30% Custom Software Development
    10% Cloud Consulting & SI +3
    10% E-Commerce Development
    10% Mobile App Development
    10% Other Application Development

    Focus Areas

    25% JavaScript
    25% Go
    25% Other programming & scripting languages +1
    25% Python

    AntStack Technologies Pvt Ltd is a custom software development firm. Their team is headquartered in Bengaluru, India and focuses on Custom Software Development and Web Development.

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  • Featherwebs Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    40% Custom Software Development
    15% UX/UI Design +2
    10% E-Commerce Development
    10% Mobile App Development

    Focus Areas

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

    Featherwebs is a software development firm. Headquartered in Lalitpur, Nepal, the team offers Custom Software Development and Web Development.

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    More responsive than most other service providers

    Featherwebs is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
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  • W11K GmbH Logotype

    Not yet reviewed

    $25,000+
    $100 - $149 / hr
    10 - 49
    Esslingen am Neckar, Germany

    Services provided

    45% Web Development
    45% Custom Software Development
    5% UX/UI Design +1
    5% Web Design

    Focus Areas

    10% JavaScript
    25% Typescript
    15% HTML5 +4
    15% Java
    15% Kotlin
    10% Python
    10% Scala

    W11K GmbH is a software development firm. Located in Esslingen am Neckar, Germany, the company was founded in 2001. Their team offers Custom Software Development and Web Development.

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  • Dominguez Marketing LLC Logotype

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    10 - 49
    Kenmore, NY

    Services provided

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

    Focus Areas

    20% JavaScript
    20% Java
    20% PHP +2
    20% SQL
    20% XML

    Dominguez Marketing LLC is a Content Marketing company based in Kenmore, New York. Their services include Content Marketing and Pay Per Click.

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  • Soft Valley Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% API Development
    10% Application Management & Support +7
    10% Application Testing
    10% Custom Software Development
    10% DevOps Managed Services
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% Mobile App Development
    10% Other Application Development

    Focus Areas

    15% JavaScript
    15% PHP
    15% SQL +7
    10% AJAX
    10% Kotlin
    10% Python
    10% Swift
    5% Go
    5% HTML5
    5% Redux

    Soft Valley, a custom software development firm, was founded in 2020. The team provides Custom Software Development and Web Development.

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  • Heliconia Solutions Pvt. Ltd Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    25% ERP Consulting and SI
    20% E-Commerce Development +3
    15% Custom Software Development
    15% IT Staff Augmentation
    10% Mobile App Development

    Focus Areas

    30% JavaScript
    30% Python
    20% SQL +3
    10% PHP
    5% Other programming & scripting languages
    5% Typescript

    ERP consulting and SI company Heliconia Solutions Pvt. Ltd provides ERP consulting and SI and E-Commerce Development. They were launched in 2018.

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  • SiteNative Logotype

    5.0 3 reviews
    $1,000+
    $50 - $99 / hr
    2 - 9
    Chicago, IL

    Services provided

    35% Web Development
    30% E-Commerce Development
    15% Search Engine Optimization +2
    10% Branding
    10% Social Media Marketing

    Focus Areas

    15% JavaScript
    30% PHP
    25% AJAX +2
    15% Python
    15% SQL

    SiteNative specializes in SEO services, web design, API development, and eCommerce solutions. Clients acclaim their exceptional professionalism, dedication, and cost-efficiency. They have successfully enhanced online visibility and developed intricate eCommerce integrations, consistently delivering projects on time while maintaining clear communication and attention to detail.

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  • Swift Digital Technology Solutions Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    250 - 999
    Nasarawa, Nigeria

    Services provided

    15% Web Development
    20% IT Managed Services
    15% Cybersecurity +4
    15% E-Commerce Development
    15% Low/No Code Development
    10% Custom Software Development
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    30% Python
    15% AJAX +4
    15% PHP
    15% SQL
    10% Ruby
    5% Swift

    Swift Digital Technology Solutions is a website development company. The team specializes in Web Development and IT managed services, and the company is headquartered in Nasarawa, Nigeria.

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  • Alphics Tech India Private Limited Logotype

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    2 - 9
    Bhubaneswar, India

    Services provided

    25% Web Development
    30% E-Commerce Development
    20% Mobile App Development +2
    15% Custom Software Development
    10% UX/UI Design

    Focus Areas

    15% JavaScript
    30% Kotlin
    30% SQL +2
    15% jquery
    10% PHP

    E-commerce development firm Alphics Tech India Private Limited was founded in 2021. The small team provides E-Commerce Development and Web Development.

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  • Aorake Tech Logotype

    Aorake Tech

    4.5 1 review
    $1,000+
    < $25 / hr
    50 - 249

    Services provided

    10% Web Development
    10% Application Testing
    10% Custom Software Development +8
    10% E-Commerce Development
    10% HR Outsourcing
    10% IT Managed Services
    10% Mobile App Development
    10% Recruiting
    10% Staffing
    5% HR Consulting
    5% UX/UI Design

    Focus Areas

    17% JavaScript
    33% Other programming & scripting languages
    17% Python +2
    17% Ruby
    16% PHP

    Aorake Tech provides mobile and web application design and development services, focusing on creating cost-effective, scalable, and flexible software solutions. Reviews highlight their innovative approach, excellent project management skills, and customer-centric focus, resulting in high user satisfaction and measurable business improvements such as increased ROI, revenue growth, and enhanced operational efficiency.

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  • PlaceCode Solution - Shopify Agency Logotype

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

    Services provided

    20% Web Development
    60% E-Commerce Development
    20% UX/UI Design

    Focus Areas

    30% JavaScript
    20% PHP
    20% SQL +2
    20% XML
    10% Java

    PlaceCode Solution - Shopify Agency specializes in optimizing Shopify store design and user experience, integrating third-party apps, and customizing Shopify features to enhance functionality. Reviews highlight their commitment to customer satisfaction, effective project management, timely delivery, and budget adherence, resulting in improved customer satisfaction and operational efficiency for their clients.

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  • ChampSol Logotype

    ChampSol

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% CRM Consulting and SI
    10% Custom Software Development +6
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% Low/No Code Development
    10% Other Application Development
    5% Application Management & Support
    5% Mobile App Development

    Focus Areas

    10% JavaScript
    70% PHP
    10% AJAX +2
    5% Other programming & scripting languages
    5% XML

    Website development firm ChampSol was launched in 2018. Based in Multan, Pakistan, the team offers Web Development and CRM consulting and SI.

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  • Enlighture Technology Logotype

    Not yet reviewed

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

    Services provided

    40% Web Development
    20% Mobile App Development
    15% Other Digital Marketing +2
    15% UX/UI Design
    10% Graphic Design

    Focus Areas

    32% JavaScript
    28% PHP
    20% SQL +2
    15% Redux
    5% AJAX

    Enlighture Technology, a web development company, was founded in 2017. The agency offers Web Development and Mobile App Development, and is small.

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  • Willbe Collective Logotype

    Not yet reviewed

    $10,000+
    $50 - $99 / hr
    2 - 9
    Barcelos, Portugal

    Services provided

    30% Web Development
    30% E-Commerce Development
    20% UX/UI Design +2
    10% AR/VR Development
    10% Mobile App Development

    Focus Areas

    42% JavaScript
    21% Typescript
    16% HTML5 +2
    11% PHP
    10% SQL

    Willbe Collective is a web development company. In Barcelos, Portugal, the agency was launched in 2013. Their services include Web Development and E-Commerce Development.

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  • Itera.es Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Content Marketing
    20% Mobile App Development +3
    20% UX/UI Design
    10% Custom Software Development
    10% Low/No Code Development

    Focus Areas

    15% JavaScript
    45% Other programming & scripting languages
    40% Python

    Itera.es is a Content Marketing company launched in 2022. The small team provides Content Marketing and UX/UI Design.

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  • Abstract Infosys Logotype

    Abstract Infosys

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    30% JavaScript
    15% Python
    15% Swift +4
    10% HTML5
    10% PHP
    10% SQL
    10% jquery

    Abstract Infosys is a SEO company in Kathmandu, Nepal. They focus on Search Engine Optimization and Social Media Marketing and were founded in 2023.

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  • Lablogic Larsen Logotype

    Lablogic Larsen

    Not yet reviewed

    Undisclosed
    $50 - $99 / hr
    Freelancer

    Services provided

    25% Web Development
    30% Custom Software Development
    20% E-Commerce Development +2
    20% Web Design
    5% Logo

    Focus Areas

    25% JavaScript
    25% PHP
    20% SQL +4
    10% AJAX
    10% HTML5
    5% XML
    5% jquery

    Founded in 2014, Lablogic Larsen is a small software development company headquartered in Hommelvik, Norway. Their team specializes in Custom Software Development and Web Development.

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  • Marketer's Panel Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    10 - 49
    Lehigh Acres, FL

    Services provided

    10% Web Development
    10% Architectural Design
    10% Graphic Design +7
    10% IT Strategy Consulting
    10% Interior Design
    10% Logo
    10% Mobile App Development
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design

    Focus Areas

    25% JavaScript
    25% AJAX
    25% PHP +1
    25% Python

    Marketer's Panel, an UX design company, provides UX/UI Design and Architectural Design. The company is based in Lehigh Acres, Florida.

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  • Janszen Media, LLC Logotype

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    2 - 9
    Sunbury, OH

    Services provided

    20% Web Development
    20% Web Design
    10% Content Marketing +5
    10% Digital Strategy
    10% Graphic Design
    10% Pay Per Click
    10% Search Engine Optimization
    10% Video Production

    Focus Areas

    25% JavaScript
    25% PHP
    25% XML +2
    15% Java
    10% SQL

    Janszen Media, LLC is a small web design company in Sunbury, Ohio. Their services include Web Design and Web Development.

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  • Obliq Labs Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% E-Commerce Development +2
    20% IT Strategy Consulting
    20% Mobile App Development

    Focus Areas

    20% JavaScript
    20% ASP.NET
    20% C# +2
    20% Java
    20% Swift

    Obliq Labs is a Jaipur, India-based custom software development company. The team provides Custom Software Development and E-Commerce Development.

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  • Max Stack Labs Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% ERP Consulting and SI
    20% Application Testing +2
    20% Mobile App Development
    10% AI Development

    Focus Areas

    20% JavaScript
    30% Python
    20% Java +2
    20% SQL
    10% XML

    Max Stack Labs is an ERP consulting and SI company. They focus on ERP consulting and SI and Mobile App Development and were launched in 2017. The agency is located in Thiruvananthapuram, India.

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  • Hetarth Consulting Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% Custom Software Development
    20% Mobile App Development +3
    10% Application Management & Support
    10% Business Consulting
    10% E-Commerce Development

    Focus Areas

    20% JavaScript
    60% PHP
    20% Typescript

    Established in 2020, Hetarth Consulting is a small Ahmedabad, India-based custom software development company. Their services include Custom Software Development and Web Development.

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  • Komit Tech Logotype

    Komit Tech

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    45% Web Development
    35% Custom Software Development
    10% Mobile App Development +2
    5% AI Development
    5% API Development

    Focus Areas

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

    Komit Tech is a custom software development firm. Founded in 2022, the firm focuses on Custom Software Development and Web Development.

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  • Devingdom Technologies Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% API Development
    15% Custom Software Development +5
    15% Mobile App Development
    10% Blockchain
    10% Product Design
    10% UX/UI Design
    10% Web Design

    Focus Areas

    40% JavaScript
    20% Go
    20% Typescript +3
    10% jquery
    5% Java
    5% Redux

    Devingdom Technologies is a Rawalpindi, Pakistan-based software development firm. Established in 2023, the team specializes in Custom Software Development and Web Development.

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  • Dalol Web Services Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% E-Commerce Development +2
    20% Mobile App Development
    20% Other Application Development

    Focus Areas

    20% JavaScript
    20% C++
    20% Other programming & scripting languages +4
    20% PHP
    10% SQL
    5% AJAX
    5% C

    Launched in 2019, Dalol Web Services is a software development company. The small team provides Custom Software Development and E-Commerce Development.

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  • Strategic Digital Marketing Company Limited Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    50 - 249
    Hong Kong, Hong Kong

    Services provided

    10% Web Development
    45% Search Engine Optimization
    25% Social Media Marketing +2
    10% Digital Strategy
    10% Media Planning & Buying

    Focus Areas

    30% JavaScript
    40% Java
    30% PHP

    Strategic Digital Marketing Company Limited is a midsize SEO services firm located in Hong Kong, Hong Kong. The team provides Search Engine Optimization and Social Media Marketing.

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  • VJ Software Solutions Logotype

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

    Services provided

    10% Web Development
    10% Social Media Marketing
    5% Affiliate Marketing +15
    5% Content Marketing
    5% Digital Strategy
    5% E-Commerce Development
    5% Email Marketing
    5% Graphic Design
    5% HR Consulting
    5% IT Staff Augmentation
    5% Logo
    5% Mobile & App Marketing
    5% Other Digital Marketing
    5% Pay Per Click
    5% Product Design
    5% Search Engine Optimization
    5% UX/UI Design
    5% Web Design

    Focus Areas

    45% JavaScript
    35% PHP
    15% SQL +1
    5% AJAX

    VJ Software Solutions offers comprehensive Website Development and SEO services, focusing on creating functional and optimized websites for enhanced online presence. Their reviews highlight their expertise in Web Development, responsiveness, and custom strategies tailored to client goals, with an emphasis on measurable outcomes and transparent communication.

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  • Techomind An IT Company Logotype

    5.0 1 review
    $1,000+
    $50 - $99 / hr
    10 - 49
    Varanasi, India

    Services provided

    20% Web Development
    20% Branding
    20% Mobile App Development +3
    20% Search Engine Optimization
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    35% JavaScript
    65% PHP

    Techomind An IT Company specializes in Website Development, Web Design, and Online Development, providing comprehensive services including website creation, booking engine integration, and business strategy formulation. Reviews highlight their commitment to understanding client needs, timely delivery, and offering excellent value, with notable strengths in communication, adaptability, and the ability to exceed expectations within budget constraints.

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  • Koncept-solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Rawalpindi, Pakistan

    Services provided

    30% Web Development
    30% Custom Software Development
    10% AR/VR Development +3
    10% Low/No Code Development
    10% Mobile App Development
    10% Search Engine Optimization

    Focus Areas

    25% JavaScript
    25% PHP
    25% SQL +3
    13% AJAX
    6% C#
    6% Redux

    Koncept-solutions is a software development company. The company is based in Rawalpindi, Pakistan. Their team focuses on Custom Software Development and Web Development.

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  • Ecommerce Data Soution Logotype

    Ecommerce Data Soution

    Not yet reviewed

    Undisclosed
    < $25 / hr
    10 - 49

    Services provided

    20% Web Development
    15% E-Commerce Development
    15% Pay Per Click +4
    15% Search Engine Optimization
    15% Social Media Marketing
    10% Content Marketing
    10% Content Writing Services

    Focus Areas

    10% JavaScript
    20% Other programming & scripting languages
    10% Ember.js +6
    10% Java
    10% Objective C
    10% PHP
    10% Python
    10% Ruby
    10% Visual Basic

    Ecommerce Data Soution is a web development firm. They are located in New Delhi, India and have small team of experts. Their services include Web Development and Social Media Marketing.

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  • Nanostack Private Limited Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    35% JavaScript
    20% Typescript
    15% HTML5 +2
    15% Redux
    15% SQL

    Nanostack Private Limited, an UX design company, is in Bhopal, India. Their services include UX/UI Design and Custom Software Development.

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  • Infikey Technologies Logotype

    4.5 1 review
    Undisclosed
    Undisclosed
    10 - 49
    Ahmedabad, India

    Services provided

    16% Web Development
    20% Web Design
    16% Custom Software Development +3
    16% E-Commerce Development
    16% Mobile App Development
    16% Other Application Development

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C# +7
    10% Java
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% SQL
    10% Visual Basic
    10% XML

    Infikey Technologies specializes in website development, web design, and online development, along with mobile app development and digital marketing services, including PPC and SEO. Overall feedback from clients highlights their cooperative and responsive team, the quality and flexibility of their work, and their strong project management skills.

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  • Techno Dreams Group Logotype

    2.8 2 reviews
    $50,000+
    $25 - $49 / hr
    10 - 49
    Kyiv, Ukraine

    Services provided

    30% Web Development
    30% Broadcast Video
    30% Mobile App Development +2
    5% Blockchain
    5% Custom Software Development

    Focus Areas

    10% JavaScript
    50% Other programming & scripting languages
    10% C# +3
    10% C++
    10% PHP
    10% SQL

    Techno Dreams Group offers services in SEO and web development. Reviews indicate significant dissatisfaction, citing incomplete projects, poor communication, and allegations of unprofessional conduct. The feedback suggests concerns about the company's reliability and integrity in delivering web programming and online development services.

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  • Clydewire Ltd Logotype

    Clydewire Ltd

    Not yet reviewed

    $25,000+
    $100 - $149 / hr
    10 - 49

    Services provided

    20% Web Development
    30% Application Management & Support
    30% E-Commerce Development +1
    20% Custom Software Development

    Focus Areas

    20% JavaScript
    55% PHP
    20% XML +1
    5% Perl

    Clydewire Ltd, an Application Management & Support company, was established in 2018. The team offers Application Management & Support and E-Commerce Development.

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  • Mindly Logotype

    Not yet reviewed

    $5,000+
    Undisclosed
    10 - 49
    Tallinn, Estonia

    Services provided

    30% Web Development
    30% Custom Software Development
    20% Mobile App Development +6
    10% UX/UI Design
    2% Application Management & Support
    2% Application Testing
    2% Blockchain
    2% Business Consulting
    2% Other Application Development

    Focus Areas

    10% JavaScript
    40% Ruby
    30% Java +1
    20% Other programming & scripting languages

    Mindly is a software development firm. They are headquartered in Tallinn, Estonia and Orlando, Florida, and their services include Custom Software Development and Web Development.

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  • Codelantic Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Colombo, Sri Lanka

    Services provided

    30% Web Development
    20% Custom Software Development
    20% Mobile App Development +2
    20% Web Design
    10% IoT Development

    Focus Areas

    10% JavaScript
    20% PHP
    20% SQL +5
    10% AJAX
    10% Java
    10% Python
    10% Swift
    10% Visual Basic

    Codelantic is a small web development company headquartered in Paddington, England and Colombo, Sri Lanka. The team provides Web Development and Custom Software Development.

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  • PODTECH Logotype

    Not yet reviewed

    $10,000+
    $50 - $99 / hr
    10 - 49
    Milton Keynes, England

    Services provided

    20% Web Development
    20% IT Strategy Consulting
    20% Mobile App Development +4
    10% AR/VR Development
    10% Custom Software Development
    10% Low/No Code Development
    10% UX/UI Design

    Focus Areas

    11% JavaScript
    21% ASP.NET
    8% Kotlin +12
    5% AJAX
    5% C
    5% C#
    5% C++
    5% ColdFusion
    5% Java
    5% Objective C
    5% PHP
    5% Python
    5% SQL
    5% Swift
    5% Visual Basic

    Founded in 2009, PODTECH is a small Milton Keynes, England-based IT strategy consulting company. Their team offers IT strategy consulting and Custom Software Development.

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  • Insider® Logotype

    Insider®

    4.5 1 review
    $25,000+
    $200 - $300 / hr
    2 - 9

    Services provided

    20% Web Development
    30% Low/No Code Development
    20% Web Design +3
    10% Branding
    10% Logo
    10% UX/UI Design

    Focus Areas

    70% JavaScript
    20% Typescript
    10% HTML5

    Insider® Agency is a powerhouse of creativity, fueled by a team of skilled specialists dedicated to empowering businesses with powerful digital solutions customized uniquely for them.We take pride

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  • Merock Agency Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9
    Kampala, Uganda

    Services provided

    60% Web Development
    19% Web Design
    10% E-Commerce Development +3
    8% Search Engine Optimization
    2% Social Media Marketing
    1% Logo

    Focus Areas

    20% JavaScript
    70% PHP
    10% AJAX

    Merock Agency is a website development company launched in 2017. The agency specializes in Web Development and Web Design, and is small.

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We evaluate service providers using a structured methodology that combines:

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

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Ability to deliver
Focus
Clutch Leaders Matrix

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

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

List of the Top 15 JavaScript Development Companies

  1. Brainhub Logotype

    Brainhub

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

    Ability to deliver

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

    Service focus

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

    xfive

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

    Ability to deliver

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

    Service focus

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

    ImageX

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

    Ability to deliver

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

    Service focus

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

    The Software House

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

    Ability to deliver

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

    Service focus

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

    ATEAM SOFT SOLUTIONS

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

    Ability to deliver

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

    Service focus

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

    Airdev

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

    Ability to deliver

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

    Service focus

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

    Xmartlabs

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

    Ability to deliver

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

    Service focus

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

    Toptal

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

    Ability to deliver

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

    Service focus

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

    Softonix

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

    Ability to deliver

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

    Service focus

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

    INOXOFT

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

    Ability to deliver

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

    Service focus

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

    Lizard Global

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

    Ability to deliver

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

    Service focus

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

    PopArt Studio

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

    Ability to deliver

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

    Service focus

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

    GeekyAnts

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

    Ability to deliver

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

    Service focus

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

    SpdLoad

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

    Ability to deliver

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

    Service focus

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

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

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

    Service focus

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

    HTMLPanda

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

    Ability to deliver

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

    Service focus

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

    Sigma Software Group

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

    Ability to deliver

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

    Service focus

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

    Incora

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

    Ability to deliver

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

    Service focus

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

    Cleveroad

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

    Ability to deliver

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

    Service focus

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

    Brainium Information Technologies

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

    Ability to deliver

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

    Service focus

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

    WPWeb Infotech

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

    Ability to deliver

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

    Service focus

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

    Experion Technologies

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

    Ability to deliver

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

    Service focus

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

    Human Made

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

    Ability to deliver

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

    Service focus

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

    Probey Services

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

    Ability to deliver

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

    Service focus

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

    Blazity

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

    Ability to deliver

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

    Service focus

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

    XWP

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

    Ability to deliver

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

    Service focus

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

    Vincit

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

    Ability to deliver

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

    Service focus

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

    PowerGate Software

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

    Ability to deliver

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

    Service focus

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

    Arcanys

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

    Ability to deliver

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

    Service focus

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

Top JavaScript Development Agencies

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

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

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

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

Clutch data shows project budgets range widely:

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

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

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

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

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

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

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

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

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

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