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Top JavaScript Developers

JavaScript powers everything from interactive websites to complex enterprise applications. Partnering with an experienced JavaScript development agency ensures your product is fast, secure, and ready to scale. Clutch makes it easy to find trusted providers by publishing in-depth, verified client reviews and transparent performance data. Use our filters to sort agencies by budget, location, framework expertise, and more. Looking for regional specialists? Browse firms in the United States, United Kingdom, or Canada to compare portfolios and pricing in your market. Start exploring today and shortlist partners that align with your goals.
Ratings Updated: May 18, 2026
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15 Leaders 15 Contenders

22,060 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

  • Featured

    What are Featured Providers?

    Digis, a Fiverr company (NYSE: FVRR) Logotype

    Digis, a Fiverr company (NYSE: FVRR)

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

    Services provided

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

    Focus Areas

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

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

    See all 89 projects
    3 of 3 reviews are 5 stars
    2 new reviews for Web Development services
    $10,000 – $49,000 avg. project cost

    Reviewed 3 times in the past 6 months

    In the last six months, clients have expressed high satisfaction with Digis, a Fiverr company (NYSE: FVRR), highlighting their impressive responsiveness and quality of development. For instance, one client noted a 40% reduction in project delivery times and significant improvements in site performance. Another mentioned their ability to quickly scale resources to meet project demands. Overall, the sentiment is overwhelmingly positive, with clients appreciating the team's integration and collaborative approach, leaving little room for improvement.
    Read 3 Recent Reviews
    6 of 6 JavaScript reviews are 5 stars
    1 new review for JavaScript in past 6 months
    $10,000 – $49,000 avg. project cost

    JavaScript Experience

    Digis has received overwhelmingly positive feedback for their JavaScript services, with 90% of clients noting effective communication and timely delivery. Clients have praised the expertise of their developers, particularly in frontend and full-stack development, contributing to improved project turnaround times by 40%-50%. Notable strengths include their ability to adapt to client needs, provide high-quality code, and offer innovative solutions without requiring micromanagement. Overall, there are no significant areas for improvement mentioned, indicating strong client satisfaction.

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

    Web Development PROJECT HIGHLIGHT

    Hosting Platform Development for Advertising & Marketing Co

    4.5 — Digis developed an automated hosting platform with cPanel integration, email automation, and GitHub automation for an advertising and marketing company. Read more
    Read 23 Reviews
    $50,000 Best for Small Companies $75,000 Best for Medium Companies $100,000 Best for Enterprises

    Custom Product Development

    Our specialists around the globe provide the expertise and development resources to scale your IT products and achieve success.
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  • SONOVA TECHNOLOGIES Logotype

    SONOVA TECHNOLOGIES

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% Back Office Outsourcing
    15% Custom Software Development +7
    10% AI Agents
    10% API Development
    10% CRM Consulting and SI
    10% ERP Consulting and SI
    10% IT Strategy Consulting
    5% IoT Development
    5% Mobile App Development

    Focus Areas

    10% JavaScript
    20% AJAX
    20% PHP +5
    15% SQL
    10% Python
    10% Redux
    10% Swift
    5% jquery

    Established in 2021, SONOVA TECHNOLOGIES is a small Ahmedabad, India-based custom software development company. Their services include Custom Software Development and Back Office Outsourcing.

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  • NewProWeb Logotype

    NewProWeb

    Not yet reviewed

    $5,000+
    Undisclosed
    10 - 49

    Services provided

    10% Web Development
    15% ECM Consulting and SI
    15% Mobile App Development +7
    10% CRM Consulting and SI
    10% Custom Software Development
    10% Document Digitization & Management
    10% ERP Consulting and SI
    10% IT Strategy Consulting
    5% API Development
    5% IT Staff Augmentation

    Focus Areas

    10% JavaScript
    20% Python
    15% Java +6
    15% SQL
    10% Objective C
    10% Other programming & scripting languages
    10% PHP
    5% Ember.js
    5% Kotlin

    NewProWeb, an ECM consulting and SI company, was founded in 2024. The small team provides ECM consulting and SI and Mobile App Development.

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  • Cusenware Logotype

    Cusenware

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Agents
    10% AI Development +7
    10% Custom Software Development
    10% E-Commerce Development
    10% Generative AI
    10% Low/No Code Development
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    45% PHP
    25% Python +2
    10% Other programming & scripting languages
    10% SQL

    Cusenware is a web design company. The small Surat, India-based team specializes in Web Design and UX/UI Design. The company was launched in 2024.

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  • ZivaTrix Logotype

    ZivaTrix

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% E-Commerce Development
    10% Mobile App Development +13
    10% Other Digital Marketing
    5% AI Agents
    5% AI Consulting
    5% AI Development
    5% Branding
    5% Business Consulting
    5% CRM Consulting and SI
    5% Custom Software Development
    5% Digital Strategy
    5% Generative AI
    5% IT Strategy Consulting
    5% UX/UI Design
    5% Web Design

    Focus Areas

    10% JavaScript
    15% Kotlin
    15% Swift +6
    10% HTML5
    10% Java
    10% PHP
    10% Python
    10% SQL
    10% Typescript

    Established in 2023, ZivaTrix is a small Gurugram , India-based website development company. Their services include Web Development and Mobile App Development.

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  • BoostNow Solutions LLP Logotype

    BoostNow Solutions LLP

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Cloud Consulting & SI
    10% Custom Software Development +7
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% IT Staff Augmentation
    10% IT Strategy Consulting
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    25% Kotlin
    15% Ember.js +4
    15% Python
    15% SQL
    10% Java
    10% PHP

    BoostNow Solutions LLP is a web design company launched in 2024. The team specializes in Web Design and UX/UI Design.

    Read more
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  • Evolviq Digital Logotype

    Evolviq Digital

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% AI Consulting
    20% AI Development +5
    10% Custom Software Development
    10% Generative AI
    10% Graphic Design
    10% Mobile App Development
    10% Search Engine Optimization

    Focus Areas

    10% JavaScript
    10% Ember.js
    10% Java +9
    10% Kotlin
    10% PHP
    10% Python
    10% SQL
    10% Swift
    5% ASP.NET
    5% Apex
    5% HTML5
    5% Other programming & scripting languages

    Evolviq Digital is an AI firm established in 2020. The firm specializes in Artificial Intelligence and AI Consulting, and is small.

    Read more
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  • Xpert Grub Logotype

    Xpert Grub

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% IT Managed Services
    20% Cybersecurity +4
    15% Cloud Consulting & SI
    15% IT Strategy Consulting
    5% Custom Software Development
    5% Mobile App Development

    Focus Areas

    10% JavaScript
    10% C++
    10% Java +7
    10% Kotlin
    10% PHP
    10% Python
    10% Redux
    10% SQL
    10% Typescript
    10% jquery

    Xpert Grub, an IT managed services company, was launched in 2018. The small team specializes in IT managed services and Cybersecurity.

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  • JoJo Techland PLC Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    25% Custom Software Development
    20% Mobile App Development +8
    10% E-Commerce Development
    5% API Development
    5% Application Management & Support
    5% Blockchain
    5% DevOps Managed Services
    5% IoT Development
    5% Microservices Architecture Services
    5% Other Application Development

    Focus Areas

    10% JavaScript
    20% Java
    20% Other programming & scripting languages +5
    10% Kotlin
    10% Python
    10% SQL
    10% Swift
    10% jquery

    Custom software development company JoJo Techland PLC offers Custom Software Development and Mobile App Development. They were launched in 2024.

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  • Towerbridge Logotype

    Towerbridge

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% Recruiting
    15% Staffing +6
    10% Back Office Outsourcing
    10% Call Center Services
    10% HR Outsourcing
    10% IT Staff Augmentation
    10% Recruitment Process Outsourcing
    10% Sales Outsourcing

    Focus Areas

    10% JavaScript
    15% PHP
    10% ASP +7
    10% ASP.NET
    10% C
    10% C#
    10% C++
    10% HTML5
    10% XML
    5% Java

    Based in Winter Garden, Florida, Towerbridge is a Recruiting company. Their services include Recruiting and Staffing.

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  • Qodelix Technologies Logotype

    Qodelix Technologies

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% E-Commerce Development
    10% Mobile App Development +14
    5% AI Agents
    5% AI Development
    5% API Development
    5% Application Testing
    5% Custom Software Development
    5% DevOps Managed Services
    5% Generative AI
    5% IoT Development
    5% Low/No Code Development
    5% Microservices Architecture Services
    5% Mobile & App Marketing
    5% Product Design
    5% Social Media Marketing
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    15% Typescript
    15% jquery +7
    10% AJAX
    10% HTML5
    10% Java
    10% Kotlin
    10% Redux
    5% PHP
    5% Python

    Website development company Qodelix Technologies is located in Lahore, Pakistan. Launched in 2023, the team specializes in Web Development and Mobile App Development.

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  • Inno Empire Logotype

    Inno Empire

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49

    Services provided

    10% Web Development
    13% E-Commerce Development
    10% Custom Software Development +7
    10% IT Strategy Consulting
    10% Performance Marketing
    10% Search Engine Optimization
    10% Social Media Marketing
    9% Digital Strategy
    9% Mobile & App Marketing
    9% Mobile App Development

    Focus Areas

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

    Inno Empire is an e-commerce development company. Their team is based in Cranbourne, Australia and focuses on E-Commerce Development and Search Engine Optimization.

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  • Right Media UK Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Conversion Optimization
    10% E-Commerce Development +7
    10% Ecommerce Marketing
    10% Mobile App Development
    10% Pay Per Click
    10% Performance Marketing
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design

    Focus Areas

    10% JavaScript
    10% ASP
    10% ASP.NET +7
    10% HTML5
    10% Other programming & scripting languages
    10% PHP
    10% Python
    10% SQL
    10% XML
    10% jquery

    Headquartered in London, England, Right Media UK is a social media marketing company. The team specializes in Social Media Marketing and Search Engine Optimization.

    Read more
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  • Wi4 Logotype

    Wi4

    5.0 8 reviews
    $10,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    15% Web Development
    20% AI Development
    15% Mobile App Development +5
    10% AR/VR Development
    10% Custom Software Development
    10% Enterprise App Modernization
    10% Low/No Code Development
    10% Other Application Development

    Focus Areas

    50% JavaScript
    25% Kotlin
    25% PHP

    Wi4 is a technology company specializing in healthcare and social IT projects, with expertise in integration, data transformation, and consulting-led solutions. Their reviews highlight their ability to deliver projects with high quality and speed, demonstrating flexibility, domain understanding, and effective project management. Approximately 90% of the feedback is positive, emphasizing their impressive integration expertise and commitment to client satisfaction.

    See all 8 projects

    Reviews mention High-quality work

    Wi4 has consistently received high praise for their quality of work across various projects. One client highlighted their 'top notch quality and speed,' emphasizing their understanding of project sensitivities and compliance. Another client noted the impressive flexibility and functionality of the final product, which exceeded expectations. Additionally, a project was delivered on time and under budget, showcasing Wi4's commitment to quality and thorough research, further reinforcing the overall positive sentiment regarding their high-quality deliverables.
    • Custom Software Dev for Software Dev Company's Client
      5.0 Aug 6, 2021

      We required top notch quality and speed. This combination was very difficult to get. Wi4 impressed us with their quality of delivery. They understood the domain and sensitivities of the project.

      Read Full Review
    • AI-Based Chatbot Dev for Non-Profit Parenting Organization
      5.0 Jun 21, 2021

      They helped us to build upon ideas and converted our vision to a reality. The final product was much better than we originally thought. It has great interfaces, usability, and functionality. We love it.

      Read Full Review
    • App Development for Environmental Business
      5.0 May 28, 2021

      The project was delivered on time and with quality of work product. The team researched extensively on our competition and provided very valuable insight to our product team. Their responsiveness and willingness to undertake competition research to benchmark our product was quite unique.

      Read Full Review
    Read All Reviews

    Industry Experience

    Wi4 has demonstrated significant expertise across various industries, notably Healthcare, Software, Motion Pictures & Film, and Business Services. In Healthcare, they excel in data integration, MVP development, and compliance, earning praise for their domain knowledge and timely delivery. Their work in Software emphasizes data management and real-time integration. In the non-profit sector, they showcased flexibility and a user-centric approach, significantly improving client engagement. Overall, the sentiment is highly positive, highlighting Wi4's strength in consulting-led solutions and problem-solving capabilities.

    Read All Reviews

    Select Industry to see insights

    Software Motion Pictures & Film Healthcare Business services

    Average Project Cost Breakdown

    $10,000 to $49,000 (4) $50,000 to $199,999 (3)

    What Clients Have Said

    Overall, Wi4 is perceived as offering excellent value for money, with multiple clients noting their competitive pricing and high-quality deliverables. One client emphasized their ability to save costs while delivering under budget, stating, 'They were honest about the amount of work required and billed us lower than our budget.' Another highlighted the combination of quality and speed, stating, 'Wi4 impressed us with their quality of delivery.' The general sentiment reflects strong satisfaction with the cost-effectiveness of their services.
    Read All Reviews

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    United States (6) India (1)
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  • Esteo - Out of Business Logotype

    Esteo - Out of Business

    5.0 1 review
    $5,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    50% Web Development
    50% Custom Software Development

    Focus Areas

    15% JavaScript
    25% HTML5
    25% SQL +2
    20% PHP
    15% Typescript

    Esteo - Out of Business specialized in Website Development and Web Design, focusing on creating and deploying comprehensive web applications. The reviews highlight the company's proficiency in delivering projects on time, maintaining clear communication, and aligning closely with client needs and values, resulting in high satisfaction and successful project outcomes.

    See all 1 projects
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  • Lococo Creative Limited Logotype

    Not yet reviewed

    $10,000+
    $150 - $199 / hr
    2 - 9
    Coventry, England

    Services provided

    15% Web Development
    20% Web Design
    15% Branding +6
    10% Digital Strategy
    10% Logo
    10% Print Design
    10% Social Media Marketing
    5% Direct Marketing
    5% Search Engine Optimization

    Focus Areas

    100% JavaScript

    Launched in 2008, Lococo Creative Limited is a web design agency. The small team focuses on Web Design and Branding.

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  • Lake WebWorks Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    2 - 9
    Sacramento, CA

    Services provided

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

    Focus Areas

    35% JavaScript
    35% PHP
    30% Other programming & scripting languages

    Small web design company Lake WebWorks, is located in Sacramento, California. The team offers Web Design and Web Development.

    Read more
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  • On-Target Design Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Dublin, OH

    Services provided

    15% Web Development
    15% Branding
    15% Graphic Design +4
    15% Print Design
    15% Video Production
    15% Web Design
    10% Search Engine Optimization

    Focus Areas

    50% JavaScript
    50% PHP

    Launched in 2003, On-Target Design, a small branding company, is in Dublin, Ohio. Their team focuses on Branding and Graphic Design.

    Read more
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  • BlueDenham WEB Design & Hosting Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Puyallup, WA

    Services provided

    40% Web Development
    40% Web Design
    10% Graphic Design +1
    10% IT Managed Services

    Focus Areas

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

    Small web design company BlueDenham WEB Design & Hosting, is based in Puyallup, Washington. Their services include Web Design and Web Development.

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  • The Design Paige LLC Logotype

    The Design Paige LLC

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    15% Web Development
    35% Graphic Design
    35% Web Design +1
    15% Social Media Marketing

    Focus Areas

    50% JavaScript
    50% Other programming & scripting languages

    The Design Paige LLC, a small graphic design agency, is in Bellevue, Washington. Their services include Graphic Design and Web Design.

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  • Fusion Creative Works Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Poulsbo, WA

    Services provided

    20% Web Development
    20% Graphic Design
    20% Logo +2
    20% Search Engine Optimization
    20% Web Design

    Focus Areas

    45% JavaScript
    45% PHP
    10% Other programming & scripting languages

    Fusion Creative Works is a small Poulsbo, Washington-based graphic design agency. The team offers Graphic Design and Logo.

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  • Washington Graphic Services Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Bethesda, MD

    Services provided

    15% Web Development
    15% Branding
    15% Event Management +4
    15% Logo
    15% Print Design
    15% Web Design
    10% Marketing Strategy

    Focus Areas

    50% JavaScript
    50% PHP

    Washington Graphic Services is a branding firm. Their small team is located in Bethesda, Maryland. Their team offers Branding and Logo.

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  • PyroGraphics Logotype

    PyroGraphics

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    15% Web Development
    15% Branding
    15% Corporate Photography +4
    15% Graphic Design
    15% Search Engine Optimization
    15% Web Design
    10% UX/UI Design

    Focus Areas

    50% JavaScript
    50% PHP

    PyroGraphics is a small branding firm. They focus on Branding and Corporate Photography and were launched in 2005.

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  • WEINLANDcreative Logotype

    WEINLANDcreative

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    25% Web Development
    25% Branding
    25% Digital Strategy +1
    25% E-Commerce Development

    Focus Areas

    40% JavaScript
    35% Java
    25% PHP

    Branding agency WEINLANDcreative is in Portland , Oregon. They provide Branding and Digital Strategy and were launched in 2001.

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  • Madrone Communication Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Portland, OR

    Services provided

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

    Focus Areas

    45% JavaScript
    30% PHP
    25% Java

    Madrone Communication is a Digital Strategy company. Launched in 2009, the team specializes in Digital Strategy and Email Marketing. The company is headquartered in Portland, Oregon.

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  • Raconteur Media Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Austin, TX

    Services provided

    15% Web Development
    20% Branding
    15% Digital Strategy +4
    15% Marketing Strategy
    15% Web Design
    10% Email Marketing
    10% Event Marketing

    Focus Areas

    100% JavaScript

    Launched in 2002, Raconteur Media is a small Austin, Texas-based branding agency. Their services include Branding and Digital Strategy.

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  • BOLDelite Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Pocatello, ID

    Services provided

    45% Web Development
    45% Web Design
    10% Graphic Design

    Focus Areas

    20% JavaScript
    20% Other programming & scripting languages
    20% PHP +2
    20% SQL
    20% XML

    BOLDelite, a web design agency, is headquartered in Pocatello, Idaho. Their services include Web Design and Web Development.

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  • Black Lotus Web Dev Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Pleasant Grove, UT

    Services provided

    15% Web Development
    15% Email Marketing
    15% Pay Per Click +4
    15% Search Engine Optimization
    15% Social Media Marketing
    15% Web Design
    10% IT Managed Services

    Focus Areas

    80% JavaScript
    20% Other programming & scripting languages

    Black Lotus Web Dev is an Email Marketing company. Established in 2015, the team offers Email Marketing and Pay Per Click. The firm is located in Pleasant Grove, Utah.

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  • Red Cone Development Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Provo, UT

    Services provided

    50% Web Development
    50% Web Design

    Focus Areas

    15% JavaScript
    15% Objective C
    15% Python +5
    15% Ruby
    10% Other programming & scripting languages
    10% PHP
    10% Perl
    10% Swift

    Red Cone Development, a small web design agency and website development firm, is headquartered in Provo, Utah. Their services include Web Design and Web Development.

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  • The Web Handlers Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Long Beach, CA

    Services provided

    40% Web Development
    20% Branding
    20% Mobile App Development +1
    20% Search Engine Optimization

    Focus Areas

    25% JavaScript
    50% AJAX
    25% PHP

    The Web Handlers is a web development firm. In Long Beach, California, the team offers Web Development and Branding.

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  • Alliant Studios Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Fairfax, VA

    Services provided

    15% Web Development
    20% Branding
    15% Conversion Optimization +4
    15% UX/UI Design
    15% Web Design
    10% Content Marketing
    10% Print Design

    Focus Areas

    50% JavaScript
    50% PHP

    Alliant Studios is a branding company. The Fairfax, Virginia-based agency was founded in 1999. Their team offers Branding and UX/UI Design.

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  • Digital Media Consulting Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Lancaster, CA

    Services provided

    30% Web Development
    30% Broadcast Video
    30% Video Production +1
    10% Advertising

    Focus Areas

    35% JavaScript
    35% PHP
    30% Java

    Launched in 1995, Digital Media Consulting is a Broadcast Video company. The agency specializes in Broadcast Video and Video Production.

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  • Mundo da Imaginação Publicidade e Propaganda Logotype

    Mundo da Imaginação Publicidade e Propaganda

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    15% Web Development
    20% Search Engine Optimization
    20% Web Design +4
    15% E-Commerce Development
    10% Email Marketing
    10% IT Managed Services
    10% Pay Per Click

    Focus Areas

    50% JavaScript
    50% PHP

    Mundo da Imaginação Publicidade e Propaganda is a small SEO services firm established in 2019. Their team offers Search Engine Optimization and Web Design.

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  • moderntools Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    München, Germany

    Services provided

    30% Web Development
    30% Web Design
    20% E-Commerce Development +1
    20% Search Engine Optimization

    Focus Areas

    35% JavaScript
    35% PHP
    30% AJAX

    Moderntools is a web design agency. Their small team is located in München, Germany. Their team specializes in Web Design and Web Development.

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  • AiCOMM Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    München, Germany

    Services provided

    40% Web Development
    20% Application Management & Support
    20% E-Commerce Development +1
    20% Web Design

    Focus Areas

    25% JavaScript
    25% Java
    25% PHP +1
    25% SQL

    AiCOMM is a München, Germany-based website development firm. Their services include Web Development and Application Management & Support.

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  • Lemon Solutions Logotype

    Lemon Solutions

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    40% Web Development
    30% Search Engine Optimization
    30% Social Media Marketing

    Focus Areas

    25% JavaScript
    25% AJAX
    25% Java +1
    25% PHP

    Lemon Solutions, a web development firm, is headquartered in Palma, Spain. Their services include Web Development and Search Engine Optimization.

    Read more
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  • NextGen Code Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Lubbock, TX

    Services provided

    15% Web Development
    30% Mobile App Development
    20% Business Consulting +2
    20% E-Commerce Development
    15% UX/UI Design

    Focus Areas

    50% JavaScript
    50% PHP

    NextGen Code is an application development company. They offer Mobile App Development and E-Commerce Development and are based in Lubbock, Texas.

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  • LEMUN DIGITAL Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Liuben, Bulgaria

    Services provided

    30% Web Development
    35% Mobile App Development
    35% Web Design

    Focus Areas

    35% JavaScript
    35% PHP
    30% Other programming & scripting languages

    Founded in 2015, LEMUN DIGITAL is an app development firm. Headquartered in Liuben, Bulgaria, the team provides Mobile App Development and Web Design.

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  • TAGO Solutions Ltd. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Kefar Sava, Israel

    Services provided

    15% Web Development
    20% Custom Software Development
    15% Email Marketing +4
    15% Mobile App Development
    15% Web Design
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    50% JavaScript
    50% C#

    TAGO Solutions Ltd. Is a software development company. Founded in 2014, the agency focuses on Custom Software Development and Email Marketing.

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  • Burning Fruit Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Joondalup, Australia

    Services provided

    15% Web Development
    20% UX/UI Design
    15% Search Engine Optimization +4
    15% Social Media Marketing
    15% Web Design
    10% Digital Strategy
    10% Pay Per Click

    Focus Areas

    50% JavaScript
    50% PHP

    Burning Fruit, an user experience design company, was established in 2014. They focuses on UX/UI Design and Search Engine Optimization.

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  • Carte Blanche Media Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Montréal, Canada

    Services provided

    15% Web Development
    15% Branding
    15% Graphic Design +4
    15% Search Engine Optimization
    15% Social Media Marketing
    15% Web Design
    10% E-Commerce Development

    Focus Areas

    50% JavaScript
    50% PHP

    Carte Blanche Media is a branding company founded in 2011. The small team focuses on Branding and Graphic Design.

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  • KAMICODE Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Montréal, Canada

    Services provided

    40% Web Development
    40% Mobile App Development
    20% Search Engine Optimization

    Focus Areas

    25% JavaScript
    25% AJAX
    25% PHP +1
    25% SQL

    Established in 2008, KAMICODE is an app development company. Headquartered in Montréal, Canada, the team provides Mobile App Development and Web Development.

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  • Wozzo Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Palma, Spain

    Services provided

    25% Web Development
    25% Custom Software Development
    25% Mobile App Development +1
    25% Web Design

    Focus Areas

    40% JavaScript
    30% HTML5
    30% Typescript

    Launched in 2017, Wozzo is a small Palma, Spain-based web design company. Their services include Web Design and Custom Software Development.

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  • Fischer Software Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Chicago, IL

    Services provided

    40% Web Development
    20% Social Media Marketing
    10% Corporate Photography +3
    10% E-Commerce Development
    10% Email Marketing
    10% Search Engine Optimization

    Focus Areas

    25% JavaScript
    25% C++
    25% HTML5 +1
    25% PHP

    Fischer Software is a website development company. They are headquartered in Chicago, Illinois and have small team. Their team provides Web Development and Social Media Marketing.

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  • Lone Star Media, Inc. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Austin, TX

    Services provided

    15% Web Development
    15% API Development
    15% E-Commerce Development +4
    15% Mobile App Development
    15% UX/UI Design
    15% Web Design
    10% CRM Consulting and SI

    Focus Areas

    50% JavaScript
    50% ColdFusion

    Lone Star Media, Inc. Is an Austin, Texas-based web design company. They specialize in Web Design and UX/UI Design and were founded in 1998.

    Read more
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  • Air Spark Logotype

    Air Spark

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    15% Web Development
    15% Custom Software Development
    15% Search Engine Optimization +5
    15% Social Media Marketing
    10% BI & Big Data Consulting & SI
    10% Graphic Design
    10% Logo
    10% UX/UI Design

    Focus Areas

    50% JavaScript
    50% PHP

    Established in 1999, Air Spark, a small social media marketing company, is in Knoxville, Tennessee. Their services include Social Media Marketing and Search Engine Optimization.

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  • D2Strategy Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Havertown, PA

    Services provided

    30% Web Development
    40% BI & Big Data Consulting & SI
    30% Business Consulting

    Focus Areas

    35% JavaScript
    35% PHP
    30% SQL

    D2Strategy is a big data company. The small Havertown, Pennsylvania-based team specializes in BI & big data consulting & SI and Web Development. The agency was launched in 2015.

    Read more
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  • ATH Technologies Logotype

    Not yet reviewed

    $1,000+
    $300+ / hr
    2 - 9
    Richmond Hill, Canada

    Services provided

    10% Web Development
    20% E-Commerce Development
    15% Social Media Marketing +7
    10% AR/VR Development
    10% Branding
    10% Custom Software Development
    10% Mobile & App Marketing
    5% Direct Marketing
    5% UX/UI Design
    5% Web Design

    Focus Areas

    13% JavaScript
    38% Visual Basic
    13% C# +3
    13% PHP
    13% Python
    10% Kotlin

    ATH Technologies is an e-commerce development firm. Their small team of employees is in Richmond Hill, Canada and Lahore, Pakistan. Their team offers E-Commerce Development and Social Media

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  • Agendeas Solution Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9
    Rajkot, India

    Services provided

    10% Web Development
    10% AI Development
    10% AR/VR Development +9
    10% Business Consulting
    10% ERP Consulting and SI
    10% IT Strategy Consulting
    10% IoT Development
    10% Mobile App Development
    5% Blockchain
    5% Digital Strategy
    5% IT Managed Services
    5% Recruiting

    Focus Areas

    13% JavaScript
    25% SQL
    13% AJAX +5
    13% Python
    13% Redux
    11% Kotlin
    6% C#
    6% Ruby

    Agendeas Solution is an IT strategy consulting company. Their small team is based in Rajkot, India and focuses on IT strategy consulting and ERP consulting and SI. The firm was founded in 2022.

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  • Jaspreet Singh Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    Freelancer
    Bassi Muda, India

    Services provided

    10% Web Development
    15% IT Strategy Consulting
    15% Mobile App Development +6
    10% API Development
    10% AR/VR Development
    10% Custom Software Development
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% Microservices Architecture Services

    Focus Areas

    12% JavaScript
    18% Other programming & scripting languages
    12% HTML5 +6
    12% Python
    12% Redux
    12% Typescript
    10% Kotlin
    6% Go
    6% jquery

    Jaspreet Singh is an IT strategy consulting company. Located in Bassi Muda, India, their small team specializes in IT strategy consulting and Mobile App Development. The company was founded in 2017.

    Read more
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  • RIVO AGENCY Logotype

    5.0 31 reviews
    $5,000+
    $25 - $49 / hr
    10 - 49
    Citrus Heights, CA

    Services provided

    40% Web Development
    60% Custom Software Development

    Focus Areas

    15% JavaScript
    40% PHP
    20% SQL +2
    15% AJAX
    10% Objective C

    RIVO AGENCY is a web development company specializing in Custom Website Development, Web Design, and Full-Stack Web Development services. Reviewers consistently praise their project management, responsiveness, and ability to deliver projects on time, with 100% of reviewers mentioning effective communication and alignment with client objectives. They excel in delivering tailored solutions across various industries, contributing significantly to business enhancements and client satisfaction.

    See all 31 projects
    11 of 12 Web Development reviews are 5 stars
    3 new reviews for Web Development in past 6 months
    $10,000 – $49,000 avg. project cost

    Web Development PROJECT HIGHLIGHT

    Web Dev for Software Dev Company

    5.0 — RIVO AGENCY has created and maintained multiple websites for a software development company. Their tasks include navigation organization, CRM development, hosting, analytics, and content update Read more
    Read 12 Reviews

    Industry Experience

    RIVO AGENCY has demonstrated expertise across several industries including IT Services, Consulting, Manufacturing, Legal, and Healthcare. Feedback highlights their strengths in developing custom software solutions, enhancing operational efficiency, and delivering user-friendly platforms. Clients commend their effective communication, timely delivery, and ability to understand industry-specific needs. Overall, sentiment is highly positive, particularly in IT Services and Healthcare, suggesting RIVO AGENCY is a strong fit for tech-driven and service-oriented sectors.

    Read All Reviews

    Select Industry to see insights

    Real estate IT Services Consulting Manufacturing Legal Construction Software Information technology Healthcare Advertising & marketing Automotive Consumer Products Business services

    Average Project Cost Breakdown

    $10,000 to $49,000 (9) Less than $10,000 (6) $50,000 to $199,999 (6)

    What Clients Have Said

    Clients consistently praised RIVO AGENCY for offering excellent value for money, with feedback highlighting that their pricing fit within budgets while delivering high-quality solutions. Multiple reviews noted a strong alignment of company values and culture, contributing to positive experiences. For instance, a CEO mentioned that RIVO AGENCY's services exceeded expectations, while a project manager emphasized their proactive communication and timely delivery, reinforcing the agency's reputation as a cost-effective partner.
    Read All Reviews

    View projects from:

    United States (10) Ukraine (8) Belgium (1) Croatia (1) Germany (1) Ireland (1)
    View Profile

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Ability to deliver
Focus
Clutch Leaders Matrix

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

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

List of the Top 15 JavaScript Development Companies

  1. ImageX Logotype

    ImageX

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

    Ability to deliver

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

    Service focus

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

    xfive

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

    Ability to deliver

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

    Service focus

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

    Brainhub

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

    Ability to deliver

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

    Service focus

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

    The Software House

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

    Ability to deliver

    39.8/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

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

    Xmartlabs

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

    Ability to deliver

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

    Service focus

    50% Web Development
    35% JavaScript
    50% Other
    View Profile Visit Website
  6. Airdev Logotype

    Airdev

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

    Ability to deliver

    38.5/40.0
    19.2/20 Reviews
    9.6/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

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

    WPWeb Infotech

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

    Ability to deliver

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

    Service focus

    65% Web Development
    20% JavaScript
    35% Other
    View Profile Visit Website
  8. Lizard Global Logotype

    Lizard Global

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

    Ability to deliver

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

    Service focus

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

    PopArt Studio

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

    Ability to deliver

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

    Service focus

    35% Web Development
    40% JavaScript
    65% Other
    View Profile Visit Website
  10. Softonix Logotype

    Softonix

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

    Ability to deliver

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

    Service focus

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

    Scopic

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

    Ability to deliver

    39.5/40.0
    19.8/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    25% Web Development
    25% JavaScript
    75% Other
    View Profile Visit Website
  12. 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
  13. INOXOFT Logotype

    INOXOFT

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

    Ability to deliver

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

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  14. HTMLPanda Logotype

    HTMLPanda

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

    Ability to deliver

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

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  16. SpdLoad Logotype

    SpdLoad

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

    Ability to deliver

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

    Service focus

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

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

    36.3/40.0
    16.6/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    60% Web Development
    45% JavaScript
    40% Other
    View Profile Visit Website
  18. PowerGate Software Logotype

    PowerGate Software

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

    Ability to deliver

    38.7/40.0
    19.2/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

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

    Incora

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

    Ability to deliver

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

    Service focus

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

    Toptal

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

    Ability to deliver

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

    Service focus

    15% Web Development
    25% JavaScript
    85% Other
    View Profile Visit Website
  21. Arcanys Logotype

    Arcanys

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

    Ability to deliver

    38.7/40.0
    20/20 Reviews
    10/10 Clients & Experience
    8.7/10 Market Presence

    Service focus

    30% Web Development
    20% JavaScript
    70% Other
    View Profile Visit Website
  22. Cleveroad Logotype

    Cleveroad

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

    Ability to deliver

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

    Service focus

    28% Web Development
    15% JavaScript
    72% Other
    View Profile Visit Website
  23. Blazity Logotype

    Blazity

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

    Ability to deliver

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

    Service focus

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

    Experion Technologies

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

    Ability to deliver

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

    Service focus

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

    Human Made

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

    Ability to deliver

    37.8/40.0
    18/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    100% Web Development
    30% JavaScript
    View Profile Visit Website
  26. Vincit Logotype

    Vincit

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

    Ability to deliver

    36.2/40.0
    16.2/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    30% Web Development
    30% JavaScript
    70% Other
    View Profile Visit Website
  27. XWP Logotype

    XWP

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

    Ability to deliver

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

    Service focus

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

    Flowout

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

    Ability to deliver

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

    Service focus

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

    Sigma Software Group

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

    Ability to deliver

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

    Service focus

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

    Merixstudio

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

    Ability to deliver

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

    Service focus

    50% Web Development
    10% JavaScript
    50% Other
    View Profile Visit Website

Top JavaScript Development Agencies

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

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

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

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

Clutch data shows project budgets range widely:

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

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

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

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

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

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

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

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

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

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