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Top JavaScript Developers

JavaScript powers everything from interactive websites to complex enterprise applications. Partnering with an experienced JavaScript development agency ensures your product is fast, secure, and ready to scale. Clutch makes it easy to find trusted providers by publishing in-depth, verified client reviews and transparent performance data. Use our filters to sort agencies by budget, location, framework expertise, and more. Looking for regional specialists? Browse firms in the United States, United Kingdom, or Canada to compare portfolios and pricing in your market. Start exploring today and shortlist partners that align with your goals.
Ratings Updated: March 31, 2026
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15 Leaders 15 Contenders

21,831 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

  • Featured

    What are Featured Providers?

    Digis, a Fiverr company (NYSE: FVRR) Logotype

    Digis, a Fiverr company (NYSE: FVRR)

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

    Services provided

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

    Focus Areas

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

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

    See all 89 projects

    Reviews mention Reasonable pricing

    Clients consistently commend Digis for their reasonable pricing, noting that it aligns well with their budgets while providing exceptional value. One client highlighted that the pricing fit their budget and appreciated the good value for the cost. Another client emphasized the competitive rates offered by Digis, stating that their talented engineers deliver high-quality work at unusual levels of affordability. Overall, the sentiment regarding pricing is overwhelmingly positive, reflecting satisfaction with the cost-effectiveness of their services.
    • IT Staff Augmentation for Software Dev Company
      5.0 Dec 31, 2023

      We appreciated how DIGIS consistently met deadlines with high-quality work. Their team communicates effectively in English, making the collaboration seamless. Overall, they offer excellent value for the price, making them a standout choice.

      Read Full Review
    • Development for Media Company
      5.0 Feb 13, 2019

      The quality to cost ratio DIGIS provided was impressive. They offered very competitive prices and adhered to the schedule we set. Based on our research, we had expected higher costs.

      Read Full Review
    Read All Reviews
    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

    Average Project Cost Breakdown

    $10,000 to $49,000 (25) $50,000 to $199,999 (16) Less than $10,000 (8) $200,000 to $999,999 (6) $1,000,000 to $9,999,999 (4)

    What Clients Have Said

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

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    United States (29) Germany (7) Ukraine (7) England (4) France (4) Israel (3) South Africa (2) Canada (2) Italy (2) Sweden (2) Spain (2) Ireland (1) Netherlands (1) New Zealand (1) Poland (1) Romania (1) Russia (1) Lithuania (1) Latvia (1) Japan (1) Australia (1) Georgia (1) Scotland (1) Estonia (1)
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  • Ethnic Infotech Pvt. Ltd. Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% E-Commerce Development
    20% Application Management & Support +5
    10% Direct Marketing
    10% Low/No Code Development
    10% Marketing Strategy
    5% Branding
    5% IT Strategy Consulting

    Focus Areas

    15% JavaScript
    25% PHP
    15% Objective C +4
    15% Redux
    15% SQL
    10% Visual Basic
    5% AJAX

    Ethnic Infotech Pvt. Ltd. Is an e-commerce development company. The team is based in Surat, India, and their services include E-Commerce Development and Application Management & Support.

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  • Hello World Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Social Media Marketing
    10% Branding +8
    10% Other Digital Marketing
    10% Other Marketing
    10% UX/UI Design
    10% Web Design
    5% Logo
    5% Mobile App Development
    5% Packaging Design
    5% Print Design

    Focus Areas

    15% JavaScript
    15% Java
    15% PHP +6
    15% SQL
    10% HTML5
    10% Python
    10% XML
    5% C#
    5% C++

    Hello World is a social media marketing company founded in 2018. The team provides Social Media Marketing and Branding and is in Bhakkar, Pakistan.

    Read more
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  • DEVOPSOLUTION Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    10 - 49
    Cairo, Egypt

    Services provided

    15% Web Development
    25% Mobile App Development
    15% Low/No Code Development +6
    10% Custom Software Development
    10% Digital Strategy
    10% Graphic Design
    5% AR/VR Development
    5% Robotics Process Automation
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    20% Other programming & scripting languages
    15% PHP +5
    15% Swift
    10% ASP.NET
    10% Kotlin
    10% Python
    10% SQL

    DEVOPSOLUTION is a Cairo, Egypt-based web development company. They specialize in Web Development and Mobile App Development.

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  • Nibbio Logotype

    Not yet reviewed

    $75,000+
    $100 - $149 / hr
    10 - 49
    Palmetto Bay, FL

    Services provided

    10% Web Development
    20% Robotics Process Automation
    10% AI Development +7
    10% Business Consulting
    10% IT Strategy Consulting
    10% Low/No Code Development
    10% Product Design
    10% UX/UI Design
    5% Enterprise App Modernization
    5% IT Staff Augmentation

    Focus Areas

    15% JavaScript
    20% Typescript
    10% C# +7
    10% HTML5
    10% Other programming & scripting languages
    10% SQL
    10% XML
    5% ASP.NET
    5% Python
    5% Visual Basic

    Nibbio, a website development firm, was founded in 2019. Headquartered in Palmetto Bay, Florida, the team offers Web Development and Robotics Process Automation.

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  • Binate IT Services Private Limited Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% Branding
    15% Social Media Marketing +6
    10% E-Commerce Development
    10% Email Marketing
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

    15% JavaScript
    15% AJAX
    15% Objective C +6
    15% Visual Basic
    10% Redux
    10% SQL
    10% Swift
    5% C#
    5% PHP

    Launched in 2014, Binate IT Services Private Limited is a branding agency. Their team focuses on Branding and Social Media Marketing.

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  • Metarouge Innovations Logotype

    Not yet reviewed

    $25,000+
    $25 - $49 / hr
    10 - 49
    Sydney, Australia

    Services provided

    15% Web Development
    15% Mobile App Development
    10% Custom Software Development +10
    10% Enterprise App Modernization
    10% Other Application Development
    5% AI Consulting
    5% Application Management & Support
    5% Application Testing
    5% E-Commerce Development
    5% IT Managed Services
    5% IT Strategy Consulting
    5% Other IT Consulting and SI
    5% Wearable App Development

    Focus Areas

    10% JavaScript
    20% Python
    15% Kotlin +5
    15% Swift
    10% HTML5
    10% PHP
    10% Redux
    10% SQL

    Metarouge Innovations is a website development firm located in Sydney, Australia. They specialize in Web Development and Mobile App Development.

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  • iYnix Digital Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% Search Engine Optimization
    25% Ecommerce Marketing +3
    25% Pay Per Click
    5% Branding
    5% Marketing Strategy

    Focus Areas

    15% JavaScript
    20% PHP
    20% SQL +4
    15% AJAX
    10% Ember.js
    10% HTML5
    10% Python

    IYnix Digital is a SEO agency. Headquartered in Noida, India, the firm was founded in 2021. Their services include Search Engine Optimization and Pay Per Click.

    Read more
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  • Vaistra Technologies Private Limited Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% Application Testing
    15% Graphic Design +5
    15% Search Engine Optimization
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    10% JavaScript
    20% Java
    15% PHP +6
    15% SQL
    10% AJAX
    10% HTML5
    10% jquery
    5% Other programming & scripting languages
    5% Typescript

    Vaistra Technologies Private Limited is a SEO agency launched in 2019. The company provides Search Engine Optimization and Web Design, and is small.

    Read more
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  • Inizsoft Technology Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    25% E-Commerce Development
    25% Mobile App Development +2
    25% UX/UI Design
    10% Low/No Code Development

    Focus Areas

    10% JavaScript
    30% AJAX
    30% PHP +3
    20% HTML5
    5% XML
    5% jquery

    Inizsoft Technology is an UX design agency founded in 2018. Their team specializes in UX/UI Design and Web Development.

    Read more
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  • Akkenna Animation and Technologies Private Limited Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Custom Software Development
    10% Low/No Code Development +11
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    5% AR/VR Development
    5% Application Management & Support
    5% Application Testing
    5% Blockchain
    5% DevOps Managed Services
    5% E-Commerce Development
    5% IT Managed Services
    5% Other IT Consulting and SI

    Focus Areas

    15% JavaScript
    20% Kotlin
    15% SQL +6
    10% C++
    10% Java
    10% Swift
    10% Typescript
    5% Objective C
    5% Other programming & scripting languages

    Akkenna Animation and Technologies Private Limited is a custom software development company. Established in 2022, the firm provides Custom Software Development and Web Development.

    Read more
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  • M Z Technologies Private Limited Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% E-Commerce Development
    15% Mobile App Development +7
    10% API Development
    10% Other Application Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design
    5% Logo
    5% UX/UI Design

    Focus Areas

    15% JavaScript
    15% Other programming & scripting languages
    15% PHP +5
    15% SQL
    10% AJAX
    10% ASP.NET
    10% HTML5
    10% jquery

    In North Dumdum, India and Kolkata, India, M Z Technologies Private Limited is a small mobile application development company. The team focuses on Mobile App Development and E-Commerce Development.

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  • IT Training & Consulting, Inc (ITTC) Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    10 - 49
    Culver City, CA

    Services provided

    15% Web Development
    60% IT Managed Services
    15% Cybersecurity +1
    10% Web Design

    Focus Areas

    10% JavaScript
    75% PHP
    10% Typescript +1
    5% jquery

    IT managed services company IT Training & Consulting, Inc (ITTC) was established in 1997. The company specializes in IT managed services and Cybersecurity.

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  • Script Studio Technology Private Limited Logotype

    Script Studio Technology Private Limited

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% AI Development
    10% API Development +7
    10% Blockchain
    10% Custom Software Development
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    15% JavaScript
    30% Redux
    20% SQL +3
    15% AJAX
    10% PHP
    10% Python

    Script Studio Technology Private Limited is a web design agency. The New Delhi, India-based agency offers Web Design and UX/UI Design.

    Read more
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  • Kaamet Consulting (P) Ltd Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    20% Web Design
    15% Mobile App Development +5
    10% Application Management & Support
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% Cybersecurity
    10% E-Commerce Development

    Focus Areas

    10% JavaScript
    35% PHP
    25% Other programming & scripting languages +3
    10% ASP.NET
    10% HTML5
    10% jquery

    Kaamet Consulting (P) Ltd is a web design company founded in 2020. The team focuses on Web Design and Web Development.

    Read more
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  • Clever Clicks Solutions Logotype

    Clever Clicks Solutions

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Branding
    10% E-Commerce Development +7
    10% Ecommerce Marketing
    10% Graphic Design
    10% Logo
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    15% JavaScript
    20% HTML5
    15% Python +5
    10% C++
    10% Java
    10% Redux
    10% SQL
    10% jquery

    Clever Clicks Solutions is a small New Delhi, India-based branding agency. Their services include Branding and Social Media Marketing.

    Read more
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  • Big Data Analytics Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% AI Development
    20% Cloud Consulting & SI +3
    20% DevOps Managed Services
    20% Generative AI
    10% Low/No Code Development

    Focus Areas

    15% JavaScript
    40% Python
    15% HTML5 +2
    15% Other programming & scripting languages
    15% jquery

    Headquartered in Lahore, Pakistan, Big Data Analytics is a cloud consulting & SI company. The team offers cloud consulting & SI and Web Development.

    Read more
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  • OuterSpace Digital Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% Business Consulting
    15% Ecommerce Marketing +4
    15% Search Engine Optimization
    15% Social Media Marketing
    15% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    10% Typescript
    5% AJAX +15
    5% ASP.NET
    5% C#
    5% Ember.js
    5% HTML5
    5% Java
    5% Kotlin
    5% Objective C
    5% Other programming & scripting languages
    5% PHP
    5% Python
    5% Redux
    5% SQL
    5% Swift
    5% Visual Basic
    5% jquery

    OuterSpace Digital is a Colombo, Sri Lanka-based social media marketing firm. Founded in 2021, the team offers Social Media Marketing and Search Engine Optimization.

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  • Raddito LLC Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    10% JavaScript
    10% AJAX
    10% HTML5 +7
    10% Other programming & scripting languages
    10% PHP
    10% Redux
    10% SQL
    10% Typescript
    10% XML
    10% jquery

    Raddito LLC, a web design company, is in Chittagong, Bangladesh and Saint Paul, Minnesota. The team focuses on Web Design and Search Engine Optimization.

    Read more
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  • Appziac Technologies Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    20% Custom Software Development
    15% Web Design +5
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% Mobile App Development
    10% Supply Chain Management
    10% UX/UI Design

    Focus Areas

    10% JavaScript
    10% AJAX
    10% C# +7
    10% C++
    10% HTML5
    10% PHP
    10% Rust
    10% SQL
    10% Typescript
    10% jquery

    Software development company Appziac Technologies was launched in 2020. The firm provides Custom Software Development and Web Development, and is small.

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  • Ibtidah Solutions Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    10 - 49
    Oslo, Norway

    Services provided

    15% Web Development
    20% Mobile App Development
    15% AI Development +8
    10% AI Agents
    10% Generative AI
    5% Application Testing
    5% Custom Software Development
    5% DevOps Managed Services
    5% E-Commerce Development
    5% Product Design
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    15% Kotlin
    15% Objective C +6
    15% Python
    15% Swift
    10% SQL
    10% Typescript
    5% AJAX
    5% Other programming & scripting languages

    Ibtidah Solutions is an application development company. They are in Oslo, Norway and Lahore, Pakistan. Their team offers Mobile App Development and Web Development.

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  • Brigada Logotype

    Brigada

    Not yet reviewed

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

    Services provided

    15% Web Development
    20% AI Development
    20% Custom Software Development +6
    15% Mobile App Development
    10% AI Consulting
    5% Call Center Services
    5% DevOps Managed Services
    5% Search Engine Optimization
    5% Web Design

    Focus Areas

    10% JavaScript
    50% PHP
    15% Other programming & scripting languages +2
    15% Python
    10% Typescript

    Brigada, a software development firm, was founded in 2024. The company focuses on Custom Software Development and Artificial Intelligence, and is small.

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  • Endpoint Clients Logotype

    Endpoint Clients

    Not yet reviewed

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

    Services provided

    10% Web Development
    25% UX/UI Design
    15% Web Design +6
    10% Custom Software Development
    10% Graphic Design
    10% Other Design
    10% Product Design
    5% E-Commerce Development
    5% Mobile App Development

    Focus Areas

    15% JavaScript
    20% HTML5
    20% Typescript +5
    10% ASP.NET
    10% Perl
    10% Python
    10% jquery
    5% C++

    Endpoint Clients is an UX agency. Based in London, England and Wah, Pakistan, the company specializes in UX/UI Design and Web Design.

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    More responsive than most other service providers

    Endpoint Clients is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
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  • Xentra Solutions LLC Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    50 - 249
    Malolos, Philippines

    Services provided

    10% Web Development
    10% API Development
    10% Application Testing +7
    10% Custom Software Development
    10% Graphic Design
    10% Low/No Code Development
    10% Mobile App Development
    10% Product Design
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    35% HTML5
    25% SQL +3
    10% C#
    10% PHP
    10% Python

    Xentra Solutions LLC, a web design company, specializes in Web Design and Mobile App Development. The agency is based in Malolos, Philippines and Las Vegas, Nevada.

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  • Qrysalis Logotype

    4.5 2 reviews
    Undisclosed
    < $25 / hr
    2 - 9
    Dhaka, Bangladesh

    Services provided

    15% Web Development
    35% Custom Software Development
    20% AI Development +2
    20% Application Management & Support
    10% AI Consulting

    Focus Areas

    20% JavaScript
    20% C#
    20% Python +2
    20% SQL
    20% Typescript

    Qrysalis is a dynamic and forward-thinking technology firm dedicated to providing comprehensive tech services and innovative products to businesses across various industries. With a focus on cloud

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  • Zaavian Marketing House Logotype

    Zaavian Marketing House

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

    Services provided

    20% Web Development
    30% Search Engine Optimization
    30% Social Media Marketing +1
    20% Pay Per Click

    Focus Areas

    15% JavaScript
    30% Python
    15% C++ +3
    15% Java
    15% SQL
    10% HTML5

    Zaavian Marketing House is a full-service digital marketing agency built for brands that refuse to settle. We specialize in SEO, guest posting, content creation, social media, and paid advertising,

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  • CraftedDots Logotype

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

    Services provided

    10% Web Development
    20% Web Design
    19% UX/UI Design +6
    11% Graphic Design
    10% Branding
    10% Low/No Code Development
    10% Product Design
    5% Custom Software Development
    5% Mobile App Development

    Focus Areas

    25% JavaScript
    21% Python
    12% HTML5 +5
    11% Other programming & scripting languages
    11% Typescript
    10% PHP
    5% AJAX
    5% SQL

    CraftedDots transforms ambitious ideas into high-performing SaaS experiences. Led by Ata ul Mohsin, Senior Product Designer with 5+ years of experience and a CS background, we bridge technical

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  • Quallit Technologies (OPC) Pvt Ltd Logotype

    5.0 1 review
    Undisclosed
    $25 - $49 / hr
    2 - 9
    Ahmedabad, India

    Services provided

    20% Web Development
    35% API Development
    35% Microservices Architecture Services +1
    10% Mobile App Development

    Focus Areas

    15% JavaScript
    50% Java
    25% Python +1
    10% Typescript

    Quallit Technologies (OPC) Pvt Ltd specializes in Web Development and Web Design services, with a focus on complex backend social integration and data pipeline projects. Reviews highlight their prompt delivery, strong customer support, and effective communication, making them a reliable choice for achieving project goals. However, there is room for improvement in enhancing team members' domain expertise.

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  • Arsenic Sol Logotype

    4.0 1 review
    Undisclosed
    Undisclosed
    2 - 9
    Sialkot, Pakistan

    Services provided

    20% Web Development
    20% AI Development
    20% Search Engine Optimization +3
    15% Custom Software Development
    15% E-Commerce Development
    10% Low/No Code Development

    Focus Areas

    15% JavaScript
    30% Python
    20% PHP +2
    20% SQL
    15% Other programming & scripting languages

    Arsenic Sol: The Digital Alchemists Founded in 2023, Arsenic Sol is a dynamic software development agency committed to empowering businesses with cutting-edge digital solutions. We specialize in AI

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  • Expert SEO Specialist Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Pay Per Click
    25% Search Engine Optimization +1
    25% Web Design

    Focus Areas

    10% JavaScript
    50% PHP
    15% ASP.NET +3
    10% Java
    10% Python
    5% SQL

    Expert SEO Specialist is a small pay per click company headquartered in Arlington, New York and. Their services include Pay Per Click and Search Engine Optimization.

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  • Genexiz Logotype

    Genexiz

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Custom Software Development
    20% Mobile App Development +3
    15% E-Commerce Development
    10% UX/UI Design
    5% Web Design

    Focus Areas

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

    Genexiz is a custom software development firm. They offer Custom Software Development and Web Development and were founded in 2018. The company is in Chisinau, Moldova.

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  • Softlab Solutions Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Mobile App Development
    25% Web Design +2
    15% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    60% PHP
    10% AJAX +2
    10% SQL
    10% XML

    Softlab Solutions, a small app development firm, is based in New Delhi, India. Their services include Mobile App Development and Web Design.

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  • 4Twenty Solutions Logotype

    4Twenty Solutions

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% Mobile App Development
    20% Custom Software Development +4
    10% UX/UI Design
    10% Web Design
    5% Blockchain
    5% IoT Development

    Focus Areas

    15% JavaScript
    85% C#

    Headquartered in Kyiv, Ukraine, 4Twenty Solutions is a mobile application development company. They specialize in Mobile App Development and Custom Software Development and were launched in 2018.

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  • Nuron Surge - A.I Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    40% AI Development
    10% Graphic Design +4
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    25% JavaScript
    50% Other programming & scripting languages
    25% PHP

    Nuron Surge - A.I is an AI firm. Their small team is located in Mechanicsburg, Pennsylvania. Their team specializes in Artificial Intelligence and UX/UI Design.

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  • Alafa9 Agency Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    20% Custom Software Development
    20% Search Engine Optimization +4
    15% Web Design
    10% E-Commerce Development
    10% Social Media Marketing
    10% UX/UI Design

    Focus Areas

    20% JavaScript
    30% PHP
    20% C# +2
    20% Typescript
    10% Redux

    Alafa9 Agency is a software development firm in Marrakech, Morocco. The team provides Custom Software Development and Search Engine Optimization.

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  • SixStack Logotype

    Not yet reviewed

    $10,000+
    Undisclosed
    2 - 9
    Swarzędz, Poland

    Services provided

    10% Web Development
    50% Custom Software Development
    10% AI Development +3
    10% Application Testing
    10% IT Strategy Consulting
    10% IoT Development

    Focus Areas

    25% JavaScript
    25% Java
    25% Kotlin +1
    25% Python

    In Swarzędz, Poland, SixStack is a software development firm. They focus on Custom Software Development and Artificial Intelligence.

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  • Digitaal Agency Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    15% JavaScript
    20% C++
    20% Python +3
    20% SQL
    20% Swift
    5% PHP

    Digitaal Agency, a web design agency, was launched in 2021. The agency focuses on Web Design and Web Development, and is small.

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  • EASY SOLUTIONS 360 Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Mobile App Development +5
    15% E-Commerce Development
    10% Web Design
    5% Cloud Consulting & SI
    5% ERP Consulting and SI
    5% IoT Development

    Focus Areas

    15% JavaScript
    30% SQL
    20% PHP +3
    20% Python
    10% Visual Basic
    5% ASP.NET

    Custom software development firm EASY SOLUTIONS 360 was launched in 2019. The team provides Custom Software Development and Web Development and is based in New Delhi, India.

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  • Remarkable Solutions Logotype

    Not yet reviewed

    $10,000+
    $50 - $99 / hr
    2 - 9
    Warsaw, Poland

    Services provided

    10% Web Development
    10% AR/VR Development
    10% Application Management & Support +7
    10% Application Testing
    10% BI & Big Data Consulting & SI
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% DevOps Managed Services
    10% Digital Strategy
    10% IT Strategy Consulting

    Focus Areas

    25% JavaScript
    25% HTML5
    25% SQL +1
    25% Typescript

    Remarkable Solutions, a small Digital Strategy company, is headquartered in Warsaw, Poland. The team focuses on Digital Strategy and IT strategy consulting.

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  • Hopeleaf Technologies Logotype

    Not yet reviewed

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

    Services provided

    25% Web Development
    25% Custom Software Development
    25% E-Commerce Development +4
    10% IT Managed Services
    5% Application Testing
    5% Enterprise App Modernization
    5% IT Strategy Consulting

    Focus Areas

    10% JavaScript
    55% PHP
    35% SQL

    Hopeleaf Technologies is a custom software development company. The company is in Surat, India. Their services include Custom Software Development and Web Development.

    Read more
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  • Pentaknot Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    2 - 9
    Mumbai, India

    Services provided

    20% Web Development
    15% Web Design
    10% AI Development +7
    10% Blockchain
    10% Custom Software Development
    10% Mobile App Development
    10% UX/UI Design
    5% AR/VR Development
    5% BI & Big Data Consulting & SI
    5% Cybersecurity

    Focus Areas

    15% JavaScript
    30% Python
    30% SQL +2
    15% Typescript
    10% Java

    Pentaknot is a small website development firm based in Mumbai, India. Their services include Web Development and Web Design.

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  • Nemora Logotype

    Nemora

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    25% JavaScript
    50% PHP
    25% Other programming & scripting languages

    Nemora is a web design company. Located in Kharkiv, Ukraine, their small team provides Web Design and E-Commerce Development. The company was founded in 2016.

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  • Stats Agency Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    2 - 9
    Brașov, Romania

    Services provided

    15% Web Development
    25% Affiliate Marketing
    25% Other Marketing +2
    20% Conversion Optimization
    15% UX/UI Design

    Focus Areas

    20% JavaScript
    10% C
    10% Java +5
    10% Kotlin
    10% PHP
    10% Python
    10% SQL
    10% Swift

    Founded in 2019, Stats Agency, a small Other Marketing company, is based in Brașov, Romania. Their services include Other Marketing and Affiliate Marketing.

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  • MediaTech Consulting Pvt Ltd. Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Advertising
    10% Application Testing +7
    10% Branding
    10% Direct Marketing
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    25% JavaScript
    25% HTML5
    25% Java +1
    25% jquery

    MediaTech Consulting Pvt Ltd. Is an Advertising company. Located in Secunderabad, India, the team provides Advertising and Branding.

    Read more
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  • iCube Business Logotype

    iCube Business

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    10% Web Development
    20% Mobile App Development
    20% UX/UI Design +6
    15% Low/No Code Development
    10% E-Commerce Development
    10% Web Design
    5% Affiliate Marketing
    5% Graphic Design
    5% Search Engine Optimization

    Focus Areas

    25% JavaScript
    50% PHP
    25% Python

    ICube Business, an user experience design company, was established in 2020. The company specializes in UX/UI Design and Web Development, and is small.

    Read more
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  • Undraft'd Studio Logotype

    Not yet reviewed

    $5,000+
    $300+ / hr
    2 - 9
    South Hill, WA

    Services provided

    10% Web Development
    30% Branding
    30% Web Design +3
    10% Conversion Optimization
    10% Low/No Code Development
    10% Search Engine Optimization

    Focus Areas

    25% JavaScript
    75% Other programming & scripting languages

    Web design company Undraft'd Studio was founded in 2022. The firm provides Web Design and Branding, and is small.

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  • Khushtech Solutions Private Limited Logotype

    Khushtech Solutions Private Limited

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    10% Custom Software Development
    10% E-Commerce Development +11
    10% IT Staff Augmentation
    10% Mobile App Development
    10% Other IT Consulting and SI
    10% Search Engine Optimization
    5% Application Management & Support
    5% Application Testing
    5% Blockchain
    5% ERP Consulting and SI
    5% IoT Development
    4% Low/No Code Development
    1% Other Application Development

    Focus Areas

    25% JavaScript
    15% Java
    10% PHP +8
    10% Python
    10% Typescript
    5% ASP.NET
    5% Ember.js
    5% Kotlin
    5% Objective C
    5% SQL
    5% Swift

    Khushtech Solutions Private Limited is a SEO services firm. Founded in 2022, the team provides Search Engine Optimization and IT staff augmentation.

    Read more
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  • Prodigma Solutions Logotype

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    2 - 9
    Tirana, Albania

    Services provided

    20% Web Development
    30% Custom Software Development
    20% E-Commerce Development +3
    15% Enterprise App Modernization
    10% Low/No Code Development
    5% IoT Development

    Focus Areas

    15% JavaScript
    25% Java
    15% Python +6
    15% SQL
    10% C#
    5% ASP.NET
    5% Kotlin
    5% Redux
    5% Typescript

    Prodigma Solutions, a small software development firm, is based in Maastricht, Netherlands and Tirana, Albania. The team focuses on Custom Software Development and Web Development.

    Read more
    View Profile
  • Diamond & Floyd Logotype

    Not yet reviewed

    $1,000+
    $150 - $199 / hr
    2 - 9
    Richmond Hill, Canada

    Services provided

    20% Web Development
    25% Branding
    20% Advertising +3
    15% Social Media Marketing
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    15% JavaScript
    20% Python
    15% C++ +4
    15% PHP
    15% SQL
    10% Ember.js
    10% Java

    Diamond & Floyd is a branding company in Richmond Hill, Canada. Their services include Branding and Advertising.

    Read more
    View Profile
  • Better|app Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Dubai, United Arab Emirates

    Services provided

    20% Web Development
    50% Mobile App Development
    10% Application Management & Support +3
    10% Low/No Code Development
    5% Application Testing
    5% Cloud Consulting & SI

    Focus Areas

    15% JavaScript
    35% Swift
    30% Kotlin +2
    10% PHP
    10% Python

    Better|app, a mobile app development firm, was founded in 2020. They specializes in Mobile App Development and Web Development.

    Read more
    View Profile
  • FOX WEB DIGITALS Logotype

    FOX WEB DIGITALS

    Not yet reviewed

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

    Services provided

    10% Web Development
    25% Search Engine Optimization
    15% Pay Per Click +4
    15% UX/UI Design
    15% Web Design
    10% Low/No Code Development
    10% Mobile App Development

    Focus Areas

    25% JavaScript
    25% PHP
    25% SQL +1
    25% Swift

    FOX WEB DIGITALS is a SEO company. Their small team of employees is based in San Francisco, California. Their team specializes in Search Engine Optimization and Web Design.

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Ability to deliver
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Clutch Leaders Matrix

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

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

List of the Top 15 JavaScript Development Companies

  1. xfive Logotype

    xfive

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

    Ability to deliver

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

    Service focus

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

    ImageX

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

    Ability to deliver

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

    Service focus

    90% Web Development
    50% JavaScript
    10% Other
    View Profile Visit Website
  3. Brainhub Logotype

    Brainhub

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

    Ability to deliver

    39.5/40.0
    19.6/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    45% Web Development
    75% JavaScript
    55% Other
    View Profile Visit Website
  4. ATEAM SOFT SOLUTIONS Logotype

    ATEAM SOFT SOLUTIONS

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

    Ability to deliver

    38.5/40.0
    19.2/20 Reviews
    10/10 Clients & Experience
    9.3/10 Market Presence

    Service focus

    50% Web Development
    50% JavaScript
    50% Other
    View Profile Visit Website
  5. The Software House Logotype

    The Software House

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

    Ability to deliver

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

    Service focus

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

    Xmartlabs

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

    Ability to deliver

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

    Service focus

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

    Airdev

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

    Ability to deliver

    38.7/40.0
    19.4/20 Reviews
    9.6/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

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

    WPWeb Infotech

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

    Ability to deliver

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

    Service focus

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

    Lizard Global

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

    Ability to deliver

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

    Service focus

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

    Softonix

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

    Ability to deliver

    36.5/40.0
    17.6/20 Reviews
    10/10 Clients & Experience
    8.9/10 Market Presence

    Service focus

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

    INOXOFT

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

    Ability to deliver

    39.8/40.0
    19.8/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  12. PopArt Studio Logotype

    PopArt Studio

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

    Ability to deliver

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

    Service focus

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

    GeekyAnts

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

    Ability to deliver

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

    Service focus

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

    Incora

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

    Ability to deliver

    37.6/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9/10 Market Presence

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  15. SpdLoad Logotype

    SpdLoad

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

    Ability to deliver

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

    Service focus

    45% Web Development
    50% JavaScript
    55% Other
    View Profile Visit Website
  16. Brainium Information Technologies Logotype

    Brainium Information Technologies

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

    Ability to deliver

    36.7/40.0
    19.4/20 Reviews
    9/10 Clients & Experience
    8.4/10 Market Presence

    Service focus

    35% Web Development
    30% JavaScript
    65% Other
    View Profile Visit Website
  17. Toptal Logotype

    Toptal

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

    Ability to deliver

    38.7/40.0
    18.8/20 Reviews
    9.9/10 Clients & Experience
    10/10 Market Presence

    Service focus

    15% Web Development
    25% JavaScript
    85% Other
    View Profile Visit Website
  18. HTMLPanda Logotype

    HTMLPanda

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

    Ability to deliver

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

    Service focus

    40% Web Development
    35% JavaScript
    60% Other
    View Profile Visit Website
  20. Techuz InfoWeb Pvt. Ltd. Logotype

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

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

    Service focus

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

    PowerGate Software

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

    Ability to deliver

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

    Service focus

    30% Web Development
    21% JavaScript
    70% Other
    View Profile Visit Website
  22. Experion Technologies Logotype

    Experion Technologies

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

    Ability to deliver

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

    Service focus

    20% Web Development
    25% JavaScript
    80% Other
    View Profile Visit Website
  23. Arcanys Logotype

    Arcanys

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

    Ability to deliver

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

    Service focus

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

    Cleveroad

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

    Ability to deliver

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

    Service focus

    28% Web Development
    15% JavaScript
    72% Other
    View Profile Visit Website
  25. Human Made Logotype

    Human Made

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

    Ability to deliver

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

    Service focus

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

    Blazity

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

    Ability to deliver

    37.3/40.0
    18.2/20 Reviews
    10/10 Clients & Experience
    9.2/10 Market Presence

    Service focus

    50% Web Development
    70% JavaScript
    50% Other
    View Profile Visit Website
  27. Sigma Software Group Logotype

    Sigma Software Group

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

    Ability to deliver

    38/40.0
    18.2/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

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

    Vangwe

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

    Ability to deliver

    38.3/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    8.9/10 Market Presence

    Service focus

    40% Web Development
    50% JavaScript
    60% Other
    View Profile Visit Website
  29. Vincit Logotype

    Vincit

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

    Ability to deliver

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

    Service focus

    30% Web Development
    30% JavaScript
    70% Other
    View Profile Visit Website
  30. Light IT Global Logotype

    Light IT Global

    $25,000+
    $25 - $49 / hr
    50 - 249
    Rickmansworth, England

    Ability to deliver

    38.9/40.0
    19.2/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    60% Web Development
    20% JavaScript
    40% Other
    View Profile Visit Website

Top JavaScript Development Agencies

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

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

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

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

Clutch data shows project budgets range widely:

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

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

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

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

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

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

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

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

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

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