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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 19, 2026
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15 Leaders 15 Contenders

22,063 Companies

Programming & Scripting: JavaScript

List of the Top JavaScript Development Companies

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

    Web Development PROJECT HIGHLIGHT

    Hosting Platform Development for Advertising & Marketing Co

    4.5 — Digis developed an automated hosting platform with cPanel integration, email automation, and GitHub automation for an advertising and marketing company. Read more
    Read 23 Reviews

    Industry Experience

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

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    Select Industry to see insights

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

    View projects from:

    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)
    $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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  • DCMadeMedia Logotype

    DCMadeMedia

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    Freelancer

    Services provided

    20% Web Development
    20% Digital Strategy
    20% Mobile App Development +2
    20% UX/UI Design
    20% Web Design

    Focus Areas

    50% JavaScript
    50% Typescript

    DCMadeMedia is a small Digital Strategy company. Founded in 2019, the team offers Digital Strategy and Web Design.

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  • GPTGRIDX Logotype

    GPTGRIDX

    Not yet reviewed

    $1,000+
    Undisclosed
    Freelancer

    Services provided

    20% Web Development
    30% Custom Software Development
    25% AI Agents +1
    25% AI Development

    Focus Areas

    50% JavaScript
    30% Python
    10% HTML5 +1
    10% Typescript

    Established in 2025, GPTGRIDX is a small Ludhiana, India-based software development company. Their services include Custom Software Development and Artificial Intelligence.

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  • PixelForge Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    Freelancer
    Chandigarh, India

    Services provided

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

    Focus Areas

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

    Web design agency PixelForge is headquartered in Chandigarh, India. They provide Web Design and Custom Software Development.

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  • ameghh Logotype

    ameghh

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer

    Services provided

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

    Focus Areas

    50% JavaScript
    50% HTML5

    Established in 2025, ameghh is a social media marketing company. In kerala, India, the team provides Social Media Marketing and Email Marketing.

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  • Fish Bones Digital Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    Freelancer
    Garden City, ID

    Services provided

    20% Web Development
    20% Application Management & Support
    20% Custom Software Development +2
    20% Low/No Code Development
    20% Web Design

    Focus Areas

    50% JavaScript
    10% AJAX
    10% PHP +3
    10% Redux
    10% SQL
    10% Typescript

    Fish Bones Digital, a web design company, was launched in 2022. The firm offers Web Design and Custom Software Development.

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  • FastSites. Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    Freelancer
    Brooklyn, NY

    Services provided

    60% Web Development
    20% Search Engine Optimization
    20% UX/UI Design

    Focus Areas

    20% JavaScript
    20% Typescript
    15% HTML5 +3
    15% Python
    15% Ruby
    15% SQL

    FastSites. Is a web development firm established in 2025. The agency offers Web Development and Search Engine Optimization.

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  • Cyron Logotype

    Cyron

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    60% JavaScript
    40% Other programming & scripting languages

    Established in 2025, Cyron is a small SEO services firm. Their services include Search Engine Optimization and Pay Per Click.

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  • REKLAMOF Logotype

    REKLAMOF

    Not yet reviewed

    $1,000+
    Undisclosed
    Freelancer

    Services provided

    65% Web Development
    30% Mobile App Development
    5% Digital Engineering

    Focus Areas

    20% JavaScript
    60% Typescript
    20% HTML5

    REKLAMOF is a web development firm. The Paris, France-based team provides Web Development and Mobile App Development.

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  • Full-Stack WordPress Expert Logotype

    Full-Stack WordPress Expert

    Not yet reviewed

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

    Services provided

    50% Web Development
    25% Search Engine Optimization
    25% Web Design

    Focus Areas

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

    Full-Stack WordPress Expert, a website development firm, is headquartered in Austin, Texas. The team focuses on Web Development and Web Design.

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  • ARG Systems Logotype

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    Freelancer
    Northampton, England

    Services provided

    20% Web Development
    60% Custom Software Development
    20% API Development

    Focus Areas

    75% JavaScript
    25% SQL

    Launched in 2025, ARG Systems is a custom software development company. Based in Northampton, England, the team specializes in Custom Software Development and Web Development.

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  • Dmitry Hans, Montenegro Logotype

    Dmitry Hans, Montenegro

    5.0 1 review
    $1,000+
    < $25 / hr
    Freelancer

    Services provided

    15% Web Development
    50% Web Design
    25% Graphic Design +1
    10% UX/UI Design

    Focus Areas

    20% JavaScript
    30% HTML5
    15% PHP +3
    15% SQL
    10% AJAX
    10% jquery

    Dmitry Hans, Montenegro specializes in Website Development, Web Design, and SEO optimization. Reviews consistently highlight their punctuality, quality of work, and effective communication. Clients have noted an increase in customer engagement and inquiries, attributing this success to Dmitry Hans' professional approach and dedication to delivering high-value services.

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  • Jim Callender Web Developer Logotype

    Not yet reviewed

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

    Services provided

    30% Web Development
    30% Web Design
    10% Cybersecurity +4
    10% IT Strategy Consulting
    10% UX/UI Design
    5% Digital Strategy
    5% Social Media Marketing

    Focus Areas

    20% JavaScript
    40% PHP
    20% Other programming & scripting languages +3
    10% SQL
    5% AJAX
    5% XML

    Jim Callender Web Developer is a Brighton, England-based web design agency. Launched in 2005, the team offers Web Design and Web Development.

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  • Evolve Squads Logotype

    Evolve Squads

    Not yet reviewed

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

    Services provided

    15% Web Development
    70% IT Staff Augmentation
    15% Mobile App Development

    Focus Areas

    10% JavaScript
    20% Other programming & scripting languages
    10% ASP.NET +6
    10% C#
    10% Java
    10% Python
    10% Ruby
    10% SQL
    10% Swift

    Midsize IT staff augmentation company Evolve Squads, is located in Gig Harbor, Washington. The team provides IT staff augmentation and Mobile App Development.

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  • GlobalkTech Logotype

    Not yet reviewed

    $10,000+
    < $25 / hr
    50 - 249
    Jabalpur, India

    Services provided

    10% Web Development
    35% IT Staff Augmentation
    30% Mobile App Development +3
    10% Custom Software Development
    10% Low/No Code Development
    5% Back Office Outsourcing

    Focus Areas

    15% JavaScript
    20% C#
    15% ASP.NET +6
    15% Kotlin
    10% Java
    10% SQL
    5% ASP
    5% PHP
    5% Scala

    GlobalkTech is an IT staff augmentation company. They were launched in 2011 and focus on IT staff augmentation and Mobile App Development.

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  • GlobeMind Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9
    Ciudad Autonoma de Buenos Aires, Argentina

    Services provided

    10% Web Development
    50% Custom Software Development
    30% Mobile App Development +2
    5% IT Staff Augmentation
    5% IoT Development

    Focus Areas

    20% JavaScript
    30% PHP
    20% SQL +2
    20% Typescript
    10% Other programming & scripting languages

    Launched in 2011, GlobeMind is a small custom software development company. Their team specializes in Custom Software Development and Mobile App Development.

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  • Innovint Digital Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% DevOps Managed Services
    20% E-Commerce Development +2
    20% UX/UI Design
    20% Web Design

    Focus Areas

    10% JavaScript
    20% Python
    15% Other programming & scripting languages +5
    15% PHP
    10% ASP.NET
    10% HTML5
    10% Typescript
    10% jquery

    Innovint Digital is a web design agency. They were established in 2024 and provide Web Design and UX/UI Design.

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  • Web Anatomy Logotype

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

    Services provided

    10% Web Development
    20% Digital Strategy
    20% Search Engine Optimization +4
    15% Pay Per Click
    15% Social Media Marketing
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    15% JavaScript
    20% SQL
    15% Other programming & scripting languages +4
    15% PHP
    15% Visual Basic
    10% HTML5
    10% Java

    WebAnatomy is a design and development studio specialising in digital products, web applications, and brand identities.  Since 2020, we've worked with businesses across the globe delivering

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    More responsive than most other service providers

    Web Anatomy 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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  • TAKWEN LTD Logotype

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    10 - 49
    London, England

    Services provided

    20% Web Development
    55% Mobile App Development
    10% AR/VR Development +3
    5% Branding
    5% Digital Strategy
    5% Market Research

    Focus Areas

    20% JavaScript
    30% Typescript
    21% PHP +5
    7% Go
    7% Ruby
    5% Java
    5% Python
    5% Swift

    Application development firm TAKWEN LTD is based in London, England and Dubai, United Arab Emirates. They specialize in Mobile App Development and Web Development and were founded in 2021.

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  • Elisol Logotype

    4.5 1 review
    $1,000+
    $25 - $49 / hr
    10 - 49
    Cheyenne, WY

    Services provided

    10% Web Development
    10% CRM Consulting and SI
    10% Custom Software Development +7
    10% E-Commerce Development
    10% Low/No Code Development
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design

    Focus Areas

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

    Elisol specializes in Website Development, Web Design, and Web Programming, offering a comprehensive suite of services that integrate web and mobile development with marketing, social media management, and SEO strategies. Clients consistently highlight Elisol's holistic approach, timely project delivery, responsiveness to client needs, and dedication to ensuring satisfaction, making them a reliable partner for complex web development projects.

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  • Weblook International Private Limited Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    10 - 49
    Colombo, Sri Lanka

    Services provided

    10% Web Development
    15% Search Engine Optimization
    15% Web Design +17
    10% Graphic Design
    8% UX/UI Design
    5% CRM Consulting and SI
    5% Content Marketing
    5% Custom Software Development
    5% E-Commerce Development
    5% Mobile App Development
    5% Pay Per Click
    2% Logo
    2% Mobile & App Marketing
    2% Print Design
    1% Digital Strategy
    1% Ecommerce Marketing
    1% Email Marketing
    1% Packaging Design
    1% Product Design
    1% Social Media Marketing

    Focus Areas

    12% JavaScript
    22% PHP
    15% HTML5 +5
    12% AJAX
    12% Other programming & scripting languages
    12% jquery
    10% SQL
    5% Typescript

    Launched in 1997, Weblook International Private Limited is a SEO agency. Their team focuses on Search Engine Optimization and Web Design.

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  • Melian Software Company Limited Logotype

    5.0 1 review
    $1,000+
    $25 - $49 / hr
    2 - 9
    Dar es Salaam, Tanzania

    Services provided

    10% Web Development
    10% Application Management & Support
    10% CRM Consulting and SI +7
    10% Custom Software Development
    10% E-Commerce Development
    10% Email Marketing
    10% IT Managed Services
    10% Low/No Code Development
    10% Mobile App Development
    10% Search Engine Optimization

    Focus Areas

    25% JavaScript
    50% PHP
    20% SQL +1
    5% C#

    Melian Software Company Limited specializes in automating and optimizing business processes, providing tailor-fit software solutions to improve efficiency and accountability. The overall feedback from reviews highlights their effective project management, personalized customer service, and successful integration of systems, contributing to increased work proficiency and time management.

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  • Techance Limited Logotype

    Techance Limited

    Not yet reviewed

    $10,000+
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    10% Digital Strategy
    10% E-Commerce Development +7
    10% Email Marketing
    10% IT Managed Services
    10% IT Strategy Consulting
    10% Mobile App Development
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    25% JavaScript
    30% PHP
    15% SQL +3
    10% ASP.NET
    10% Java
    10% XML

    Techance Limited is a small Digital Strategy company founded in 2018. Their services include Digital Strategy and Social Media Marketing.

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  • cloudex369 IT Solutions Private Limited Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Kochi, India

    Services provided

    15% Web Development
    20% IT Managed Services
    15% E-Commerce Development +4
    15% Search Engine Optimization
    15% Social Media Marketing
    10% Mobile App Development
    10% UX/UI Design

    Focus Areas

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

    Cloudex369 IT Solutions Private Limited is an IT managed services company. Founded in 2021, the team offers IT managed services and Social Media Marketing. The agency is located in Kochi, India.

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  • Internet Buddy Logotype

    Internet Buddy

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Digital Strategy
    20% E-Commerce Development +7
    14% Low/No Code Development
    10% Custom Software Development
    10% Search Engine Optimization
    5% Logo
    5% Social Media Marketing
    5% Transcription
    1% Web Design

    Focus Areas

    25% JavaScript
    50% PHP
    25% SQL

    Internet Buddy, a Digital Strategy company, was launched in 2017. The company offers Digital Strategy and Web Development.

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  • ROUTPUT Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% Branding
    20% Video Production +2
    15% Graphic Design
    15% Web Design

    Focus Areas

    15% JavaScript
    30% Ember.js
    30% Python +2
    15% SQL
    10% AJAX

    ROUTPUT is a branding firm. The Lagos, Nigeria-based agency was established in 2022. Their team specializes in Branding and Video Production.

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  • Vinecodes Developers LTD Logotype

    Not yet reviewed

    Undisclosed
    $50 - $99 / hr
    10 - 49
    Lekki, Nigeria

    Services provided

    15% Web Development
    20% ERP Consulting and SI
    20% IT Managed Services +4
    15% Custom Software Development
    10% Low/No Code Development
    10% Mobile App Development
    10% Web Design

    Focus Areas

    15% JavaScript
    30% PHP
    15% ASP.NET +4
    15% SQL
    10% AJAX
    10% Python
    5% XML

    Custom software development firm Vinecodes Developers LTD is headquartered in Lekki, Nigeria. Their services include Custom Software Development and ERP consulting and SI.

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  • Rankwell - WEB & SEO Agency Logotype

    Rankwell - WEB & SEO Agency

    Not yet reviewed

    Undisclosed
    $50 - $99 / hr
    10 - 49

    Services provided

    10% Web Development
    18% Low/No Code Development
    5% Branding +15
    5% Business Consulting
    5% Content Marketing
    5% Digital Strategy
    5% E-Commerce Development
    5% Ecommerce Marketing
    5% Graphic Design
    5% IT Strategy Consulting
    5% Logo
    5% Marketing Strategy
    5% Mobile App Development
    5% Packaging Design
    5% Social Media Marketing
    5% UX/UI Design
    1% Custom Software Development
    1% Web Design

    Focus Areas

    20% JavaScript
    75% PHP
    5% AJAX

    Website development firm Rankwell - WEB & SEO Agency is based in Marrakech, Morocco. The team specializes in Web Development and Branding.

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  • Plexxas Solutions Logotype

    Plexxas Solutions

    Not yet reviewed

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

    Services provided

    20% Web Development
    15% Low/No Code Development
    15% Search Engine Optimization +7
    10% Custom Software Development
    10% Mobile App Development
    10% Web Design
    5% CRM Consulting and SI
    5% E-Commerce Development
    5% ERP Consulting and SI
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    50% PHP
    20% HTML5 +2
    10% Java
    10% Python

    Founded in 2016, Plexxas Solutions is a small website development firm. Their team specializes in Web Development and Search Engine Optimization.

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  • Qubitars Technologies Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% AI Development
    15% Custom Software Development +7
    12% AI Agents
    10% Mobile App Development
    10% Product Design
    8% IT Staff Augmentation
    5% AI Consulting
    5% Low/No Code Development
    5% UX/UI Design

    Focus Areas

    20% JavaScript
    15% HTML5
    15% PHP +5
    15% SQL
    10% Redux
    10% Swift
    10% Typescript
    5% AJAX

    Qubitars Technologies is a small artificial intelligence development company in Gujranwala, Pakistan. Their services include Artificial Intelligence and Custom Software Development.

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  • appmarketi Logotype

    appmarketi

    Not yet reviewed

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

    Services provided

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

    Focus Areas

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

    Appmarketi is a social media marketing company launched in 2020. Based in İstanbul, Türkiye, the team provides Social Media Marketing and Content Marketing.

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  • Xibtech Solutions FZE Logotype

    Xibtech Solutions FZE

    Not yet reviewed

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

    Services provided

    10% Web Development
    25% CRM Consulting and SI
    20% ERP Consulting and SI +3
    20% UX/UI Design
    15% IT Managed Services
    10% Mobile App Development

    Focus Areas

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

    Established in 2022, Xibtech Solutions FZE is a CRM consulting and SI company. Their team provides CRM consulting and SI and ERP consulting and SI.

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  • Techsche Pvt Ltd Logotype

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    50 - 249
    Thiruvananthapuram, India

    Services provided

    10% Web Development
    15% Branding
    15% Search Engine Optimization +8
    15% Social Media Marketing
    10% E-Commerce Development
    10% Pay Per Click
    5% Digital Strategy
    5% ERP Consulting and SI
    5% Ecommerce Marketing
    5% IT Strategy Consulting
    5% Mobile App Development

    Focus Areas

    15% JavaScript
    30% SQL
    20% AJAX +2
    20% Java
    15% PHP

    Techsche Pvt Ltd is a branding firm established in 2019. The team specializes in Branding and Social Media Marketing.

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  • TechnoToil Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    50 - 249
    Indore, India

    Services provided

    15% Web Development
    15% API Development
    15% Custom Software Development +6
    15% Mobile App Development
    10% AI Development
    10% Graphic Design
    10% Web Design
    5% Mobile & App Marketing
    5% Social Media Marketing

    Focus Areas

    10% JavaScript
    15% Kotlin
    15% Objective C +5
    15% Redux
    15% Swift
    10% AJAX
    10% PHP
    10% SQL

    TechnoToil, a custom software development company, is located in Indore, India. They provide Custom Software Development and Web Development and were established in 2017.

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  • Elite Web Design Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9
    Rawalpindi, Pakistan

    Services provided

    10% Web Development
    35% Web Design
    30% Search Engine Optimization +2
    15% E-Commerce Development
    10% Low/No Code Development

    Focus Areas

    20% JavaScript
    20% Java
    20% PHP +2
    20% SQL
    20% Visual Basic

    Wordpress Designer is an SEO agency specializing in enhancing website visibility, organic traffic, and technical optimization. Reviews highlight their transparency, effective project management, and solid technical support, with 100% of feedback being positive and mentioning impressive reporting and responsiveness.

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  • Awwbit Digital Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Custom Software Development
    10% E-Commerce Development +10
    10% Graphic Design
    10% Logo
    10% Mobile App Development
    10% Web Design
    5% Content Marketing
    5% Digital Strategy
    5% Mobile & App Marketing
    5% Search Engine Optimization
    5% Social Media Marketing
    5% UX/UI Design

    Focus Areas

    10% JavaScript
    30% PHP
    30% SQL +3
    10% AJAX
    10% ASP.NET
    10% Other programming & scripting languages

    Awwbit Digital is a web design agency. The team offers Web Design and Graphic Design, and the company is based in Denpasar, Indonesia.

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  • W3Inventor(Pvt.)Ltd. Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

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

    W3Inventor(Pvt.)Ltd. Is a social media marketing agency headquartered in Morawaka, Sri Lanka. Founded in 2018, the team provides Social Media Marketing and Search Engine Optimization.

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  • DigiDesk Agency Logotype

    DigiDesk Agency

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

    Services provided

    10% Web Development
    15% Web Design
    10% Advertising +13
    10% E-Commerce Development
    10% Marketing Strategy
    10% UX/UI Design
    5% Ecommerce Marketing
    5% Email Marketing
    5% Social Media Marketing
    3% Back Office Outsourcing
    3% Branding
    3% Business Consulting
    3% Content Marketing
    3% Graphic Design
    3% Logo
    2% Sales Outsourcing

    Focus Areas

    25% JavaScript
    25% HTML5
    25% Typescript +2
    20% PHP
    5% Visual Basic

    DigiDesk Agency specializes in Website Development and Web Design, offering comprehensive solutions that combine technical expertise with creative innovation. Reviews highlight their effective project management, consistent adherence to timelines, and exceptional communication. Clients commend their ability to deliver user-friendly and visually captivating websites, resulting in significant increases in online visibility and user engagement.

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  • CODETENTACLES DEVELOPMENT Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    10% JavaScript
    20% ASP.NET
    20% HTML5 +4
    20% PHP
    10% Go
    10% SQL
    10% Swift

    CODETENTACLES DEVELOPMENT, a small web development firm, is headquartered in Pimpri-Chinchwad, India and Herriman, Utah. Their services include Web Development and Mobile App Development.

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  • iCynta Solutions Logotype

    iCynta Solutions

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49

    Services provided

    25% Web Development
    25% Custom Software Development
    25% Mobile App Development +2
    15% Search Engine Optimization
    10% Branding

    Focus Areas

    10% JavaScript
    50% PHP
    20% jquery +2
    10% HTML5
    10% Python

    ICynta Solutions is a software development company. They focus on Custom Software Development and Web Development and were founded in 2017. The agency is located in Thiruvalla, India.

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  • Entiersoft Logotype

    Entiersoft

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

    Services provided

    10% Web Development
    10% Custom Software Development
    10% Mobile App Development +12
    10% Pay Per Click
    10% Search Engine Optimization
    5% Blockchain
    5% Blockchain Marketing
    5% E-Commerce Development
    5% Graphic Design
    5% Logo
    5% Mobile & App Marketing
    5% Social Media Marketing
    5% UX/UI Design
    5% Video Marketing
    5% Web Design

    Focus Areas

    10% JavaScript
    15% PHP
    10% HTML5 +9
    10% Redux
    10% Ruby
    10% SQL
    10% Visual Basic
    5% AJAX
    5% Ember.js
    5% Kotlin
    5% Python
    5% Swift

    Entiersoft offers digital marketing services, social media marketing, and website design, excelling in providing genuine and responsible customer service. Reviews highlight their ability to deliver quality leads, impressive design work, and timely project management. Clients appreciate Entiersoft’s competitive pricing and professionalism, recommending them for their effective digital marketing strategies and responsiveness.

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  • Udaan Technologies Pvt Ltd Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    50 - 249
    Noida, India

    Services provided

    10% Web Development
    20% E-Commerce Development
    10% Custom Software Development +11
    10% Mobile App Development
    5% Application Management & Support
    5% Application Testing
    5% Graphic Design
    5% Logo
    5% Mobile & App Marketing
    5% Other Application Development
    5% Search Engine Optimization
    5% Social Media Marketing
    5% UX/UI Design
    5% Web Design

    Focus Areas

    10% JavaScript
    20% Kotlin
    20% PHP +4
    20% Redux
    10% AJAX
    10% Ruby
    10% Swift

    Established in 2014, Udaan Technologies Pvt Ltd is a midsize Noida, India-based e-commerce development company. Their services include E-Commerce Development and Custom Software Development.

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  • Geolance Tech Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9
    Vynnyky, Ukraine

    Services provided

    20% Web Development
    25% Mobile App Development
    20% UX/UI Design +3
    15% E-Commerce Development
    10% AR/VR Development
    10% Branding

    Focus Areas

    10% JavaScript
    10% C
    10% C# +7
    10% C++
    10% Java
    10% Objective C
    10% PHP
    10% Python
    10% SQL
    10% XML

    Geolance Tech is a mobile app development firm launched in 2017. Headquartered in Toronto, Canada and Vynnyky, Ukraine, the team specializes in Mobile App Development and UX/UI Design.

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  • Entexture Logotype

    Not yet reviewed

    $10,000+
    $100 - $149 / hr
    2 - 9
    Alameda, CA

    Services provided

    10% Web Development
    50% Custom Software Development
    15% IoT Development +4
    10% Enterprise App Modernization
    5% Application Management & Support
    5% Business Consulting
    5% Mobile App Development

    Focus Areas

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

    Entexture is a custom software development company. The Alameda, California-based company was launched in 2017. Their team provides Custom Software Development and IoT development.

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  • WiseDevs Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    25% Custom Software Development
    25% IoT Development +4
    10% Application Management & Support
    10% Application Testing
    10% Enterprise App Modernization
    10% Other Application Development

    Focus Areas

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

    WiseDevs, a custom software development firm, specializes in Custom Software Development and IoT development. The company is headquartered in Cochabamba, Bolivia.

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  • webOptiQ Logotype

    webOptiQ

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% E-Commerce Development
    10% Pay Per Click +15
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design
    9% Conversion Optimization
    7% Social Media Marketing
    5% Ecommerce Marketing
    3% Advertising
    2% Affiliate Marketing
    2% Branding
    2% Content Marketing
    2% Digital Strategy
    2% Email Marketing
    2% Market Research
    2% Marketing Strategy
    2% Mobile & App Marketing

    Focus Areas

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

    WebOptiQ is a SEO services firm. The Moncks Corner, South Carolina-based agency was launched in 2016. Their team specializes in Search Engine Optimization and Pay Per Click.

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  • Intense Health Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    10 - 49
    El Campello, Spain

    Services provided

    25% Web Development
    25% Custom Software Development
    25% Mobile App Development +5
    5% AI Development
    5% API Development
    5% Cloud Consulting & SI
    5% IoT Development
    5% Wearable App Development

    Focus Areas

    10% JavaScript
    10% C#
    10% C++ +7
    10% Java
    10% Objective C
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% Swift

    Intense Health is a custom software development firm in El Campello, Spain and Warszawa, Poland. Their services include Custom Software Development and Web Development.

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  • Velonix IT Solutions Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% E-Commerce Development
    20% Mobile App Development +3
    20% Web Design
    10% AR/VR Development
    10% Custom Software Development

    Focus Areas

    22% JavaScript
    33% PHP
    22% Python +2
    12% SQL
    11% Swift

    Velonix IT Solutions is a web design company. The firm is in Kolkata, India. Their team offers Web Design and Web Development.

    Read more
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  • Deveolutions Logotype

    Not yet reviewed

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

    Services provided

    16% Web Development
    13% Web Design
    12% Custom Software Development +10
    12% E-Commerce Development
    11% Application Management & Support
    8% Mobile App Development
    7% CRM Consulting and SI
    7% ERP Consulting and SI
    5% Other Application Development
    3% Product Design
    2% Cloud Consulting & SI
    2% Graphic Design
    2% Logo

    Focus Areas

    20% JavaScript
    25% PHP
    25% SQL +2
    15% AJAX
    15% Python

    Deveolutions, a small website development company, is in Rawalpindi, Pakistan. The team offers Web Development and Web Design.

    Read more
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  • Exponent Labs Logotype

    Exponent Labs

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    15% Web Development
    10% Custom Software Development
    10% E-Commerce Development +10
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    5% AI Development
    5% Application Management & Support
    5% Application Testing
    5% Blockchain
    5% Graphic Design
    5% Logo
    5% Product Design

    Focus Areas

    10% JavaScript
    10% Go
    10% HTML5 +7
    10% Java
    10% Other programming & scripting languages
    10% PHP
    10% Rust
    10% SQL
    10% Typescript
    10% jquery

    Exponent Labs is a website development firm. The team is headquartered in Florești, Romania, and their services include Web Development and Web Design.

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  • Luka Stanojevic Logotype

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    Freelancer
    Dubai, United Arab Emirates

    Services provided

    40% Web Development
    30% Web Design
    20% Search Engine Optimization +1
    10% AR/VR Development

    Focus Areas

    29% JavaScript
    71% Ruby

    Launched in 2020, Luka Stanojevic, a small web development company, is based in Dubai, United Arab Emirates. Their services include Web Development and Web Design.

    Read more
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We evaluate service providers using a structured methodology that combines:

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Ability to deliver
Focus
Clutch Leaders Matrix

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

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

List of the Top 15 JavaScript Development Companies

  1. ImageX Logotype

    ImageX

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

    Ability to deliver

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

    Service focus

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

    xfive

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

    Ability to deliver

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

    Service focus

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

    Brainhub

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

    Ability to deliver

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

    Service focus

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

    The Software House

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

    Ability to deliver

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

    Service focus

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

    Xmartlabs

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

    Ability to deliver

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

    Service focus

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

    Airdev

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

    Ability to deliver

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

    Service focus

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

    WPWeb Infotech

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

    Ability to deliver

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

    Service focus

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

    Lizard Global

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

    Ability to deliver

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

    Service focus

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

    PopArt Studio

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

    Ability to deliver

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

    Service focus

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

    Softonix

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

    Ability to deliver

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

    Service focus

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

    GeekyAnts

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

    Ability to deliver

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

    Service focus

    15% Web Development
    40% JavaScript
    85% Other
    View Profile Visit Website
  12. INOXOFT Logotype

    INOXOFT

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

    Ability to deliver

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

    Service focus

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

    Scopic

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

    Ability to deliver

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

    Service focus

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

    HTMLPanda

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

    Ability to deliver

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

    Service focus

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

    SpdLoad

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

    Ability to deliver

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

    Service focus

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

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

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

    Service focus

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

    PowerGate Software

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

    Ability to deliver

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

    Service focus

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

    Incora

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

    Ability to deliver

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

    Service focus

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

    Toptal

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

    Ability to deliver

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

    Service focus

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

    Arcanys

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

    Ability to deliver

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

    Service focus

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

    Cleveroad

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

    Ability to deliver

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

    Service focus

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

    Blazity

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

    Ability to deliver

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

    Service focus

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

    Experion Technologies

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

    Ability to deliver

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

    Service focus

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

    Human Made

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

    Ability to deliver

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

    Service focus

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

    Vincit

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

    Ability to deliver

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

    Service focus

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

    XWP

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

    Ability to deliver

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

    Service focus

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

    Flowout

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

    Ability to deliver

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

    Service focus

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

    Sigma Software Group

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

    Ability to deliver

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

    Service focus

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

    Merixstudio

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

    Ability to deliver

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

    Service focus

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

Top JavaScript Development Agencies

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

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

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

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

Clutch data shows project budgets range widely:

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

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

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

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

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

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

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

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

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

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