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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: September 13, 2026
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22,611 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

  • Wolfe Interactive, Inc. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Temecula, CA

    Services provided

    10% Web Development
    10% Content Marketing
    10% Content Writing Services +7
    10% Custom Software Development
    10% Graphic Design
    10% Mobile App Development
    10% Other Application Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    20% JavaScript
    20% C++
    20% Java +2
    20% PHP
    20% Perl

    Wolfe Interactive, Inc., a social media marketing company, focuses on Social Media Marketing and Content Marketing. The agency is based in Temecula, California.

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  • Mint Live & Digital Marketing Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Ciudad de México, Mexico

    Services provided

    10% Web Development
    30% Content Marketing
    30% Social Media Marketing +2
    20% Search Engine Optimization
    10% Digital Strategy

    Focus Areas

    20% JavaScript
    20% AJAX
    20% Java +2
    20% PHP
    20% Swift

    Established in 2009, Mint Live & Digital Marketing is a Content Marketing company. The team offers Content Marketing and Social Media Marketing and is located in Ciudad de México, Mexico.

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  • 3W Desarrollo Web Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Ciudad de Guatemala, Guatemala

    Services provided

    20% Web Development
    20% ERP Consulting and SI
    20% IT Managed Services +3
    20% Mobile App Development
    10% E-Commerce Development
    10% Search Engine Optimization

    Focus Areas

    10% JavaScript
    50% PHP
    25% Ruby +2
    10% Python
    5% ASP.NET

    ERP consulting and SI company 3W Desarrollo Web was launched in 2005. The team specializes in ERP consulting and SI and IT managed services and is in Ciudad de Guatemala, Guatemala.

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  • Innovant Public Relations Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Houston, TX

    Services provided

    10% Web Development
    20% Branding
    20% Event Marketing +4
    20% Public Relations
    10% Event Management
    10% Low/No Code Development
    10% Social Media Marketing

    Focus Areas

    20% JavaScript
    20% AJAX
    20% C++ +2
    20% PHP
    20% SQL

    Innovant Public Relations is a branding company headquartered in Houston, Texas. They specialize in Branding and Public Relations.

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  • Astute Theory Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Barangaroo, Australia

    Services provided

    10% Web Development
    50% Custom Software Development
    30% Application Management & Support +1
    10% Low/No Code Development

    Focus Areas

    20% JavaScript
    20% AJAX
    20% PHP +2
    20% SQL
    20% Swift

    Astute Theory is a custom software development company. In Barangaroo, Australia and Melbourne, Australia, the team offers Custom Software Development and Application Management & Support.

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  • Innereactive Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Grand Rapids, MI

    Services provided

    10% Web Development
    30% Graphic Design
    20% Advertising +2
    20% Digital Strategy
    20% Social Media Marketing

    Focus Areas

    20% JavaScript
    20% AJAX
    20% PHP +2
    20% Python
    20% Swift

    Innereactive is a small graphic design company founded in 2003. Their services include Graphic Design and Advertising.

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  • Thinkroom Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    South Brisbane, Australia

    Services provided

    10% Web Development
    10% Advertising
    10% Content Marketing +7
    10% Demand Generation Marketing
    10% Digital Strategy
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    20% JavaScript
    20% AJAX
    20% Perl +2
    20% Python
    20% SQL

    Advertising company Thinkroom is in South Brisbane, Australia. Their services include Advertising and Digital Strategy.

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  • Seen Advertising Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Toronto, Canada

    Services provided

    10% Web Development
    20% Branding
    20% Digital Strategy +3
    20% Market Research
    20% Search Engine Optimization
    10% Low/No Code Development

    Focus Areas

    20% JavaScript
    20% AJAX
    20% Elixir +2
    20% Python
    20% SQL

    Seen Advertising is a small branding company based in Toronto, Canada and Ottawa, Canada. The team focuses on Branding and Market Research.

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  • Donads Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Bologna, Italy

    Services provided

    10% Web Development
    20% Blockchain Marketing
    20% Digital Strategy +3
    20% Email Marketing
    20% Social Media Marketing
    10% Low/No Code Development

    Focus Areas

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

    Based in Bologna, Italy, Donads is a Digital Strategy company. Their services include Digital Strategy and Social Media Marketing.

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  • Diagonal.Software GmbH Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Aschaffenburg, Germany

    Services provided

    10% Web Development
    15% AI Development
    15% Blockchain +6
    10% Blockchain Marketing
    10% Custom Software Development
    10% E-Commerce Development
    10% Mobile App Development
    10% Product Design
    10% UX/UI Design

    Focus Areas

    20% JavaScript
    20% Java
    15% Kotlin +3
    15% PHP
    15% Python
    15% Swift

    Founded in 2017, Diagonal.Software GmbH is an artificial intelligence firm. The team focuses on Artificial Intelligence and Blockchain and is based in Aschaffenburg, Germany.

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  • WAXX Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Bloomfield Hills, MI

    Services provided

    10% Web Development
    10% Branding
    10% Content Writing Services +7
    10% Event Marketing
    10% Graphic Design
    10% Market Research
    10% Public Relations
    10% Search Engine Optimization
    10% Video Production
    10% Web Design

    Focus Areas

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

    WAXX is a branding firm established in 2019. The team provides Branding and Public Relations and is located in Bloomfield Hills, Michigan.

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  • Digital Locker Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Limerick, Ireland

    Services provided

    10% Web Development
    20% Advertising
    20% Branding +4
    20% Social Media Marketing
    10% Digital Strategy
    10% Ecommerce Marketing
    10% Low/No Code Development

    Focus Areas

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

    Founded in 2015, Digital Locker is a small Limerick, Ireland-based Advertising company. Their services include Advertising and Branding.

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  • Digirabia Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Kuwait City, Kuwait

    Services provided

    10% Web Development
    10% Content Marketing
    10% Custom Software Development +7
    10% E-Commerce Development
    10% Email Marketing
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design

    Focus Areas

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

    Digirabia is a social media marketing company. Their team is in Kuwait City, Kuwait and specializes in Social Media Marketing and Content Marketing.

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  • EasyDevs Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Al Kuwayt, Kuwait

    Services provided

    10% Web Development
    10% Branding
    10% E-Commerce Development +7
    10% Graphic Design
    10% Logo
    10% Mobile App Development
    10% Packaging Design
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

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

    Founded in 2009, EasyDevs, a small branding company, is headquartered in Al Kuwayt, Kuwait. Their services include Branding and Social Media Marketing.

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  • Roadmap Agency Oregon Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Portland, OR

    Services provided

    10% Web Development
    20% Custom Software Development
    20% Search Engine Optimization +4
    20% Social Media Marketing
    10% Content Marketing
    10% Pay Per Click
    10% Web Design

    Focus Areas

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

    Roadmap Agency Oregon is a social media marketing agency established in 2018. The agency provides Social Media Marketing and Search Engine Optimization, and is small.

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  • DCMSoft LLC Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Chicago, IL

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Web Design +4
    10% Cloud Consulting & SI
    10% E-Commerce Development
    10% Email Marketing
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    20% AJAX
    15% C++ +5
    15% HTML5
    10% PHP
    10% Perl
    10% SQL
    10% jquery

    Founded in 1983, DCMSoft LLC, a small web design agency, is in Chicago, Illinois. Their services include Web Design and Custom Software Development.

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  • HMI Tech Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Evansville, IN

    Services provided

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

    Focus Areas

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

    HMI Tech, a software development company, focus on Custom Software Development and E-Commerce Development. They were launched in 1999.

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  • JBox Software Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Las Vegas, NV

    Services provided

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

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C +10
    10% C#
    10% C++
    10% HTML5
    10% SQL
    5% Ember.js
    5% Objective C
    5% PHP
    5% Perl
    5% Python
    5% Swift

    Founded in 2007, JBox Software is a small software development firm. Their team focuses on Custom Software Development and Web Development.

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  • ITneer Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Buford, GA

    Services provided

    15% Web Development
    20% Custom Software Development
    15% Social Media Marketing +5
    10% Call Center Services
    10% Cloud Consulting & SI
    10% Pay Per Click
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

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

    ITneer is a software development firm located in Buford, Georgia. They provide Custom Software Development and Social Media Marketing.

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  • Cause of a Kind Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Island Park, NY

    Services provided

    10% Web Development
    10% API Development
    10% BI & Big Data Consulting & SI +7
    10% Blockchain
    10% Cloud Consulting & SI
    10% Computer Engineering
    10% Custom Software Development
    10% E-Commerce Development
    10% Product Design
    10% Web Design

    Focus Areas

    20% JavaScript
    20% C++
    15% C# +3
    15% HTML5
    15% SQL
    15% Typescript

    Cause of a Kind is a web design agency. Launched in 2016, the team focuses on Web Design and Product Design. The company is in Island Park, New York.

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  • Innovative Computers Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Brighton, MI

    Services provided

    20% Web Development
    20% Custom Software Development
    20% IT Managed Services +2
    20% IT Strategy Consulting
    20% Mobile App Development

    Focus Areas

    10% JavaScript
    15% C++
    15% Java +5
    15% PHP
    15% Python
    10% ASP
    10% SQL
    10% Visual Basic

    IT strategy consulting company Innovative Computers was established in 1996. The small team offers IT strategy consulting and IT managed services.

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  • Monarch Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Melbourne, FL

    Services provided

    10% Web Development
    20% API Development
    10% AI Development +6
    10% BI & Big Data Consulting & SI
    10% CRM Consulting and SI
    10% E-Commerce Development
    10% Low/No Code Development
    10% Mobile App Development
    10% UX/UI Design

    Focus Areas

    20% JavaScript
    20% AJAX
    20% PHP +2
    20% SQL
    20% jquery

    Monarch Solutions is a CRM consulting and SI company. They are in Melbourne, Florida. Their team focuses on CRM consulting and SI and API Development.

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  • AztecaNet Inc. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Los Angeles, CA

    Services provided

    20% Web Development
    20% AR/VR Development
    20% Application Management & Support +2
    20% Custom Software Development
    20% Enterprise App Modernization

    Focus Areas

    10% JavaScript
    60% C++
    10% PHP +2
    10% Python
    10% jquery

    AztecaNet Inc. Is a software development firm headquartered in Los Angeles, California. They focus on Custom Software Development and Web Development.

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  • Langr Software Solutions, Inc. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Colorado Springs, CO

    Services provided

    20% Web Development
    20% AR/VR Development
    20% Application Management & Support +2
    20% Custom Software Development
    20% Enterprise App Modernization

    Focus Areas

    10% JavaScript
    60% C++
    10% Java +2
    10% Python
    10% Ruby

    Langr Software Solutions, Inc. Is a software development company. They offer Custom Software Development and Web Development and were founded in 2003.

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  • New Buffers Logotype

    New Buffers

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    10% Web Development
    10% AI Development
    10% API Development +7
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% DevOps Managed Services
    10% Mobile App Development
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design

    Focus Areas

    20% JavaScript
    20% Java
    20% Kotlin +2
    20% SQL
    20% Swift

    New Buffers is a SEO agency. Founded in 2022, the firm specializes in Search Engine Optimization and Web Design.

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  • 99 Technologies Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Eagan, MN

    Services provided

    10% Web Development
    20% Generative AI
    20% Social Media Marketing +5
    10% E-Commerce Development
    10% Mobile App Development
    10% Robotics Process Automation
    10% Sales Outsourcing
    10% Search Engine Optimization

    Focus Areas

    20% JavaScript
    20% PHP
    20% Python +4
    10% HTML5
    10% Java
    10% Ruby
    10% jquery

    99 Technologies is a social media marketing company. The firm is headquartered in Eagan, Minnesota and Rawalpindi, Pakistan. Their team provides Social Media Marketing and Generative AI.

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  • Digital Brother Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Kyiv, Ukraine

    Services provided

    10% Web Development
    10% API Development
    10% Application Testing +7
    10% BI & Big Data Consulting & SI
    10% Branding
    10% Call Center Services
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% DevOps Managed Services
    10% Web Design

    Focus Areas

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

    Digital Brother is a branding company. Located in Kyiv, Ukraine, their small team specializes in Branding and Web Design. The firm was launched in 2020.

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  • Click & Clear Communications Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Santa Monica, CA

    Services provided

    20% Web Development
    20% Email Marketing
    20% Pay Per Click +2
    20% Search Engine Optimization
    20% Social Media Marketing

    Focus Areas

    10% JavaScript
    20% Python
    20% Visual Basic +5
    10% C#
    10% C++
    10% HTML5
    10% Java
    10% Perl

    Click & Clear Communications is a small social media marketing agency based in Santa Monica, California. Their services include Social Media Marketing and Email Marketing.

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  • Bonda Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Isola Sacra, Italy

    Services provided

    20% Web Development
    40% Video Production
    20% Graphic Design +2
    10% Custom Software Development
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    20% C++
    20% PHP +3
    20% Python
    20% Typescript
    10% C#

    Bonda, a video production agency, was launched in 2022. Headquartered in Isola Sacra, Italy, the team focuses on Video Production and Graphic Design.

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  • WMDStudio Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Bergamo, Italy

    Services provided

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

    Focus Areas

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

    WMDStudio is a Bergamo, Italy-based web design agency. They offer Web Design and Social Media Marketing and were established in 1999.

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  • SEO PROCEED Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Pedreguer, Alicante, Spain

    Services provided

    10% Web Development
    10% Branding
    10% Content Marketing +7
    10% Conversion Optimization
    10% Email Marketing
    10% Graphic Design
    10% Mobile & App Marketing
    10% Pay Per Click
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

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

    SEO PROCEED is a branding firm. They are headquartered in Pedreguer, Alicante, Spain. Their team offers Branding and Content Marketing.

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  • Business 2 Virtual LLC Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Seattle, WA

    Services provided

    10% Web Development
    20% Back Office Outsourcing
    20% Engineering +5
    10% Content Marketing
    10% Content Writing Services
    10% Digital Strategy
    10% Marketing Strategy
    10% Social Media Marketing

    Focus Areas

    20% JavaScript
    20% HTML5
    20% Java +2
    20% PHP
    20% XML

    Business 2 Virtual LLC is a Back Office Outsourcing company. They are based in Seattle, Washington and have small team. They focus on Back Office Outsourcing and Engineering.

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  • Perform Infotech Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Dubai, United Arab Emirates

    Services provided

    20% Web Development
    20% Affiliate Marketing
    20% Custom Software Development +2
    20% Mobile App Development
    20% Web Design

    Focus Areas

    10% JavaScript
    15% Python
    15% Ruby +6
    10% HTML5
    10% Java
    10% Kotlin
    10% Objective C
    10% PHP
    10% Swift

    Affiliate Marketing company Perform Infotech was established in 2023. The agency specializes in Affiliate Marketing and Web Design, and is small.

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  • EZ Dev Logotype

    EZ Dev

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    20% Web Development
    20% API Development
    20% CRM Consulting and SI +2
    20% Custom Software Development
    20% Mobile App Development

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C# +7
    10% C++
    10% Java
    10% Kotlin
    10% Python
    10% SQL
    10% Swift
    10% XML

    EZ Dev is a CRM consulting and SI company. Located in Givat Brenner, Center, Israel, the team specializes in CRM consulting and SI and Custom Software Development.

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  • WebDesign Creators Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Austin, TX

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% Search Engine Optimization +2
    20% Social Media Marketing
    20% Video Production

    Focus Areas

    10% JavaScript
    20% Swift
    10% ASP.NET +6
    10% C#
    10% HTML5
    10% Java
    10% PHP
    10% Ruby
    10% Typescript

    WebDesign Creators is a social media marketing agency. Their small team is based in Austin, Texas. Their services include Social Media Marketing and Search Engine Optimization.

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  • Digital Silk Logotype

    4.9 51 reviews
    $10,000+
    $100 - $149 / hr
    50 - 249
    New York, NY

    Services provided

    10% Web Development
    50% Web Design
    20% E-Commerce Development +3
    10% Search Engine Optimization
    5% AR/VR Development
    5% Mobile App Development

    Focus Areas

    11% JavaScript
    34% PHP
    22% ASP.NET +2
    22% Java
    11% C#

    Digital Silk is a web development and design company renowned for delivering custom web solutions, including full-stack website development and web application development. The company has received predominantly positive feedback, with 75% of reviewers praising their communication, responsiveness, and ability to meet client needs. However, one significant negative review highlighted substantial project management issues. Overall, Digital Silk is recognized for their creativity, technical expertise, and efficient project execution, though some clients experienced challenges with project timelines and management.

    See all 51 projects

    Reviews mention Efficient

    Clients consistently praised Digital Silk for their efficiency and responsiveness throughout various projects. One client noted their 'time, efficiency, and professionalism,' highlighting that everything was completed on time. Another emphasized that the entire design and implementation process was 'efficiently performed within several weeks,' reflecting a seamless experience. Overall, the sentiment surrounding efficiency is overwhelmingly positive, with clients appreciating the timely delivery and proactive communication of the Digital Silk team.
    • Web Design for Hotel
      5.0 Jan 7, 2021

      Time, efficiency and professionalism. So far everything has been done on time.

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    • Website Revamp, SEO & Branding for Public Library
      5.0 Apr 22, 2026

      They were very responsive and worked efficiently. The project took longer than originally hoped, but that was due to third-party integrations, not Digital Silk. It would benefit them to use a project management program rather than microsoft as we had a number of issues with sharing.

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    • Design & Dev for Boutique Medical Spa
      5.0 Jan 14, 2020

      They helped us transform our website and the entire process from the re-branding and development to the launch and marketing of the new website was an entirely efficient and seamless process. We have already experienced tremendous success from the new website.

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    2 of 2 reviews are 5 stars
    2 new reviews for Web Development services
    Less than $10,000 avg. project cost

    Reviewed 2 times in the past 6 months

    Digital Silk has received positive feedback for its collaborative approach and timely delivery on projects. Clients praised the quality of work, such as a well-designed landing page and a comprehensive website redesign that improved SEO and compliance standards. Communication was noted as effective, although one client suggested the adoption of a dedicated project management tool for enhanced material sharing. Overall, clients expressed satisfaction with Digital Silk's commitment and creativity in addressing project challenges.
    Read 2 Recent Reviews

    Average Project Cost Breakdown

    $10,000 to $49,000 (20) $50,000 to $199,999 (9) Less than $10,000 (4) $200,000 to $999,999 (1) $10,000,000 + (1)

    What Clients Have Said

    Clients generally perceive Digital Silk as offering good value for money, with many noting that their pricing fits within budget constraints. For instance, one client appreciated their "good value for cost" and another highlighted that Digital Silk's pricing was "significantly lower than its competitors." However, some reviews expressed dissatisfaction with project management and timeline adherence, which raised concerns about overall cost-effectiveness. Overall, the sentiment indicates a mixed view on value, with several positive remarks on affordability contrasted by notable project delays.
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    View projects from:

    United States (27) Serbia (7) Croatia (3) Austria (2) Canada (1) Montenegro (1) Singapore (1) England (1)
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  • A&D Marketing Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Cundinamarca, Colombia

    Services provided

    15% Web Development
    15% Content Marketing
    15% Email Marketing +4
    15% Mobile App Development
    15% Search Engine Optimization
    15% Social Media Marketing
    10% Web Design

    Focus Areas

    10% JavaScript
    25% PHP
    25% Python +2
    25% SQL
    15% Visual Basic

    A&D Marketing Solutions is a Content Marketing company located in Cundinamarca, Colombia. They focus on Content Marketing and Email Marketing and were launched in 2016.

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  • SAATCHI Logotype

    SAATCHI

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49

    Services provided

    10% Web Development
    10% AI Development
    10% Branding +7
    10% Corporate Photography
    10% E-Commerce Development
    10% Graphic Design
    10% Mobile App Development
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    15% JavaScript
    20% HTML5
    20% PHP +3
    15% ASP.NET
    15% C#
    15% Java

    Branding firm SAATCHI provides Branding and Social Media Marketing. They were founded in 2004.

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  • Maxiru Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Boca Raton, FL

    Services provided

    10% Web Development
    30% Custom Software Development
    10% AR/VR Development +5
    10% BI & Big Data Consulting & SI
    10% IT Strategy Consulting
    10% IoT Development
    10% Mobile App Development
    10% UX/UI Design

    Focus Areas

    15% JavaScript
    15% C++
    15% Java +4
    15% Kotlin
    15% Python
    15% Scala
    10% Swift

    Maxiru is a custom software development firm. The team is headquartered in Boca Raton, Florida, and their services include Custom Software Development and UX/UI Design.

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  • NCIT Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Raleigh, NC

    Services provided

    10% Web Development
    10% AI Development
    10% API Development +7
    10% Cloud Consulting & SI
    10% Computer Engineering
    10% Custom Software Development
    10% E-Commerce Development
    10% Graphic Design
    10% Mobile App Development
    10% UX/UI Design

    Focus Areas

    15% JavaScript
    15% PHP
    15% Python +5
    15% SQL
    10% C++
    10% HTML5
    10% Java
    10% jquery

    NCIT Solutions is an user experience design agency. Launched in 2010, their team focuses on UX/UI Design and Graphic Design.

    Read more
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  • Acumenics Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Las Vegas, NV

    Services provided

    15% Web Development
    20% Custom Software Development
    20% Mobile App Development +3
    15% Application Testing
    15% BI & Big Data Consulting & SI
    15% Cloud Consulting & SI

    Focus Areas

    10% JavaScript
    10% ASP.NET
    10% C# +7
    10% C++
    10% PHP
    10% Python
    10% Redux
    10% Swift
    10% Visual Basic
    10% jquery

    Small software development company Acumenics, is in Las Vegas, Nevada. Their services include Custom Software Development and Mobile App Development.

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  • ZOOM Marketing Digital Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Guadalajara, Mexico

    Services provided

    15% Web Development
    25% Advertising
    25% Digital Strategy +2
    25% Social Media Marketing
    10% AR/VR Development

    Focus Areas

    13% JavaScript
    13% Apex
    13% Ember.js +5
    13% Java
    13% Python
    13% Redux
    12% AJAX
    10% Kotlin

    ZOOM Marketing Digital is a small Advertising company based in Guadalajara, Mexico. The team offers Advertising and Digital Strategy.

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  • Infinite 8 A.I. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Omaha, NE

    Services provided

    10% Web Development
    10% AI Consulting
    10% AI Development +7
    10% Blockchain
    10% Business Consulting
    10% Cloud Consulting & SI
    10% Cybersecurity
    10% Generative AI
    10% IT Managed Services
    10% IoT Development

    Focus Areas

    18% JavaScript
    18% C
    18% C++ +3
    18% Java
    18% Python
    10% HTML5

    Infinite 8 A.I., a cloud consulting & SI company, was founded in 2017. The small team offers cloud consulting & SI and Cybersecurity.

    Read more
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  • Miracuves Solutions Pvt. Ltd. Logotype

    5.0 14 reviews
    $5,000+
    $25 - $49 / hr
    50 - 249
    मुंबई, India

    Services provided

    10% Web Development
    40% Mobile App Development
    10% AI Development +5
    10% Custom Software Development
    10% IT Strategy Consulting
    10% Low/No Code Development
    5% E-Commerce Development
    5% Enterprise App Modernization

    Focus Areas

    10% JavaScript
    25% Kotlin
    10% Java +7
    10% Objective C
    10% PHP
    10% SQL
    10% Swift
    5% C#
    5% C++
    5% XML

    Miracuves Solutions Pvt. Ltd. is a web development company specializing in creating user-friendly and accessible websites. The firm's professionalism and effective communication were consistently highlighted, with 100% positive feedback emphasizing their exceptional project management and creative expertise. Their ability to deliver high-quality, eye-catching websites tailored to client needs was praised by all reviewers.

    See all 14 projects
    1 of 1 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

    Branding & Web Dev for Capital Market Infrastructure Firm

    5.0 — Miracuves Solutions Pvt. Ltd. built a capital market infrastructure company's website and incorporated all their services. They also created a colorful brand that reflected the client's services and Read more
    Read 1 Review

    Industry Experience

    Miracuves Solutions Pvt. Ltd. has demonstrated expertise across various industries, including Media, Financial Services, Telecommunications, Publishing, Real Estate, and Chemicals & Biotechnology. Clients commend their strong technical capabilities, effective project management, and tailored solutions that enhance security, branding, and user experience. Overall, feedback highlights their responsiveness and ability to deliver high-quality results, making them an excellent choice for organizations seeking innovative solutions in these sectors.

    Read All Reviews

    Select Industry to see insights

    Media Financial services Telecommunications Publishing Real estate Chemicals & Biotechnology

    Average Project Cost Breakdown

    $50,000 to $199,999 (3) $10,000 to $49,000 (2) Less than $10,000 (1) $1,000,000 to $9,999,999 (1)

    What Clients Have Said

    Clients consistently praised Miracuves Solutions Pvt. Ltd. for their competitive pricing and strong value for money. For instance, one CEO noted that their 'pricing fit our budget' and highlighted the 'good value for cost.' Another client mentioned significant cost savings of approximately $3.5 million due to the effective solutions provided. Overall, the sentiment reflects satisfaction with the cost-effectiveness of services, aligning with client expectations and project requirements.
    Read All Reviews

    View projects from:

    Cyprus (2) Bulgaria (1) Ireland (1) Portugal (1) United States (1)
    View Profile
  • Quoin Inc. Logotype

    Not yet reviewed

    $25,000+
    $100 - $149 / hr
    50 - 249
    Boston, MA

    Services provided

    10% Web Development
    15% Mobile App Development
    15% Web Design +6
    10% BI & Big Data Consulting & SI
    10% Branding
    10% Custom Software Development
    10% ECM Consulting and SI
    10% IoT Development
    10% UX/UI Design

    Focus Areas

    10% JavaScript
    40% Other programming & scripting languages
    10% C++ +4
    10% Java
    10% Python
    10% Ruby
    10% Swift

    Established in 1994, Quoin Inc. Is a midsize web design company. Their services include Web Design and Mobile App Development.

    Read more
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  • World Centre, Inc Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    Freelancer
    Brush Prairie, WA

    Services provided

    20% Web Development
    20% Advertising
    20% E-Commerce Development +2
    20% Marketing Strategy
    20% Web Design

    Focus Areas

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

    World Centre, Inc is a small Brush Prairie, Washington-based Advertising company. Their services include Advertising and Marketing Strategy.

    Read more
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  • Ether Jazz Internet Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    Freelancer
    West Linn, OR

    Services provided

    20% Web Development
    20% Content Marketing
    20% Graphic Design +2
    20% Search Engine Optimization
    20% Web Design

    Focus Areas

    20% JavaScript
    20% ASP.NET
    20% Other programming & scripting languages +2
    20% PHP
    20% XML

    Launched in 1999, Ether Jazz Internet is a Content Marketing company. The company offers Content Marketing and Graphic Design.

    Read more
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  • Friendly Eagle Software Inc. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Edmonton, Canada

    Services provided

    20% Web Development
    60% Custom Software Development
    20% Mobile App Development

    Focus Areas

    20% JavaScript
    20% ASP
    20% C# +2
    20% SQL
    20% XML

    Friendly Eagle Software Inc. Is a custom software development company in Edmonton, Canada. The team offers Custom Software Development and Mobile App Development.

    Read more
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  • Your Page Today Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Barre, VT

    Services provided

    20% Web Development
    20% Logo
    20% Search Engine Optimization +2
    20% Social Media Marketing
    20% Web Design

    Focus Areas

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

    Your Page Today is a Logo company. Based in Barre, Vermont, their team offers Logo and Search Engine Optimization.

    Read more
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  • MediaExperts.com.ar Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Rosario, Argentina

    Services provided

    20% Web Development
    30% UX/UI Design
    20% Web Design +2
    15% Graphic Design
    15% Search Engine Optimization

    Focus Areas

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

    MediaExperts.com.ar, an UX company, was founded in 1998. The small team provides UX/UI Design and Web Design.

    Read more
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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 The Software House
4 Brainhub
5 Softonix
6 GeekyAnts
7 Xmartlabs
8 unicrew
9 Lizard Global
10 PopArt Studio
11 HTMLPanda
12 PowerGate Software
13 Vention
14 Cleveroad
15 Arcanys

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

    38.9/40.0
    19/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    60% Web Development
    50% JavaScript
    40% Other
    View Profile Visit Website
  3. The Software House Logotype

    The Software House

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

    Ability to deliver

    39/40.0
    19.2/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    40% Web Development
    60% JavaScript
    60% Other
    View Profile Visit Website
  4. Brainhub Logotype

    Brainhub

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

    Ability to deliver

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

    Service focus

    45% Web Development
    75% JavaScript
    55% Other
    View Profile Visit Website
  5. Softonix Logotype

    Softonix

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

    Ability to deliver

    37.5/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    8.9/10 Market Presence

    Service focus

    70% Web Development
    50% JavaScript
    30% Other
    View Profile Visit Website
  6. GeekyAnts Logotype

    GeekyAnts

    $10,000+
    $25 - $49 / hr
    250 - 999
    Bengaluru, India

    Ability to deliver

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

    Service focus

    20% Web Development
    40% JavaScript
    80% Other
    View Profile Visit Website
  7. Xmartlabs Logotype

    Xmartlabs

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

    Ability to deliver

    38.9/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

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

    unicrew

    $25,000+
    $50 - $99 / hr
    50 - 249
    London, England

    Ability to deliver

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

    Service focus

    30% Web Development
    50% JavaScript
    70% Other
    View Profile Visit Website
  9. Lizard Global Logotype

    Lizard Global

    $10,000+
    $50 - $99 / hr
    50 - 249
    Amsterdam, Netherlands

    Ability to deliver

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

    Service focus

    30% Web Development
    70% JavaScript
    70% Other
    View Profile Visit Website
  10. 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
  11. 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
  12. PowerGate Software Logotype

    PowerGate Software

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

    Ability to deliver

    38.9/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

    30% Web Development
    21% JavaScript
    70% Other
    View Profile Visit Website
  14. 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
  15. 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
  16. INOXOFT Logotype

    INOXOFT

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

    Ability to deliver

    38.8/40.0
    18.8/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  17. Incora Logotype

    Incora

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

    Ability to deliver

    36.8/40.0
    17.8/20 Reviews
    10/10 Clients & Experience
    9/10 Market Presence

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  18. 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
  19. Scopic Logotype

    Scopic

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

    Ability to deliver

    38.3/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    25% Web Development
    25% JavaScript
    75% Other
    View Profile Visit Website
  20. 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

    45% Web Development
    10% JavaScript
    55% Other
    View Profile Visit Website
  21. Vincit Logotype

    Vincit

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

    Ability to deliver

    36.1/40.0
    16.2/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    30% Web Development
    30% JavaScript
    70% Other
    View Profile Visit Website
  22. Adchitects Logotype

    Adchitects

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

    Ability to deliver

    37.1/40.0
    17.6/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

    50% Web Development
    60% JavaScript
    50% Other
    View Profile Visit Website
  23. 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
  24. Boldare Logotype

    Boldare

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

    Ability to deliver

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

    Service focus

    20% Web Development
    50% JavaScript
    80% Other
    View Profile Visit Website
  25. Bilberrry Logotype

    Bilberrry

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

    Ability to deliver

    38.1/40.0
    18.8/20 Reviews
    10/10 Clients & Experience
    9.3/10 Market Presence

    Service focus

    40% Web Development
    70% JavaScript
    60% Other
    View Profile Visit Website
  26. 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
  27. Infinum Logotype

    Infinum

    $50,000+
    $150 - $199 / 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

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

    Blazity

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

    Ability to deliver

    36.7/40.0
    17.4/20 Reviews
    10/10 Clients & Experience
    9.3/10 Market Presence

    Service focus

    50% Web Development
    70% JavaScript
    50% Other
    View Profile Visit Website
  29. Fora Soft Logotype

    Fora Soft

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

    Ability to deliver

    37.8/40.0
    18.4/20 Reviews
    10/10 Clients & Experience
    9.4/10 Market Presence

    Service focus

    25% Web Development
    60% JavaScript
    75% Other
    View Profile Visit Website
  30. Toptal Logotype

    Toptal

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

    Ability to deliver

    37.1/40.0
    17.2/20 Reviews
    9.9/10 Clients & Experience
    10/10 Market Presence

    Service focus

    15% Web Development
    25% JavaScript
    85% 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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