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Top JavaScript Developers

JavaScript powers everything from interactive websites to complex enterprise applications. Partnering with an experienced JavaScript development agency ensures your product is fast, secure, and ready to scale. Clutch makes it easy to find trusted providers by publishing in-depth, verified client reviews and transparent performance data. Use our filters to sort agencies by budget, location, framework expertise, and more. Looking for regional specialists? Browse firms in the United States, United Kingdom, or Canada to compare portfolios and pricing in your market. Start exploring today and shortlist partners that align with your goals.
Ratings Updated: December 22, 2025
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15 Leaders 15 Contenders

21,442 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 87 reviews
    Premier Verified
    $5,000+
    $25 - $49 / hr
    50 - 249
    London, England

    Services provided

    50% Web Development
    50% Custom Software Development

    Focus Areas

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

    Digis, a Fiverr company (NYSE: FVRR), specializes in full-stack web development, providing comprehensive services such as web and mobile app development, front-end and back-end engineering, and UI/UX design. With over 90% positive feedback, clients consistently praise their technical expertise, seamless communication, and proactive project management, attributing significant business success and operational enhancements to Digis' contributions.

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

    Web Development PROJECT HIGHLIGHT

    Development Staff Augmentation for Online Cooking Platform

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

    Digis has demonstrated strong expertise across several industries, notably manufacturing, information technology, media, and education. Clients highlighted their effective project management, timely delivery, and high-quality work. In manufacturing, Digis improved website functionality, enhancing user experience. In IT, they provided specialized development support, notably in Scala and React, leading to increased efficiency. Overall, client feedback reflects a positive sentiment, suggesting strong alignment for projects across these sectors.

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

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    United States (27) 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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  • Arilan Media Logotype

    4.5 1 review
    $1,000+
    < $25 / hr
    2 - 9
    Nairobi, Kenya

    Services provided

    10% Web Development
    20% Search Engine Optimization
    20% Social Media Marketing +3
    20% Web Design
    15% Pay Per Click
    15% Video Marketing

    Focus Areas

    11% JavaScript
    12% PHP
    11% Ember.js +6
    11% Other programming & scripting languages
    11% Python
    11% Redux
    11% Ruby
    11% Swift
    11% Visual Basic

    Arilan Media specializes in Website Development and Web Design, providing online development solutions tailored to clients' needs. Feedback highlights their effective project management, excellent customer service, and the positive impact of their lead generation campaigns. Clients found Arilan Media to deliver valuable and responsive web solutions that significantly enhanced business performance.

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  • Magnifique Technologies Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Ahmedabad, India

    Services provided

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

    Focus Areas

    11% JavaScript
    44% Other programming & scripting languages
    22% PHP +2
    12% SQL
    11% Typescript

    Magnifique Technologies , an UX agency, was founded in 2020. The firm provides UX/UI Design and Web Development.

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  • Hercules IT Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    40% Custom Software Development
    15% Application Management & Support +3
    15% E-Commerce Development
    10% IT Strategy Consulting
    5% Cybersecurity

    Focus Areas

    16% JavaScript
    25% Go
    16% C# +3
    16% Python
    16% Typescript
    11% PHP

    Hercules IT is a Trondheim, Norway-based software development firm. They provide Custom Software Development and Web Development.

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  • Techpotam Logotype

    Techpotam

    Not yet reviewed

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

    Services provided

    15% Web Development
    15% Low/No Code Development
    10% AR/VR Development +6
    10% Custom Software Development
    10% Digital Strategy
    10% Mobile App Development
    10% Other Digital Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    16% JavaScript
    11% Typescript
    8% Kotlin +13
    5% AJAX
    5% ASP.NET
    5% Go
    5% HTML5
    5% Java
    5% Objective C
    5% PHP
    5% Python
    5% Redux
    5% Ruby
    5% SQL
    5% Swift
    5% Visual Basic

    Techpotam, a web development firm, was launched in 2022. The company provides Web Development and Custom Software Development, and is small.

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  • crocuszone Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% Low/No Code Development
    15% Mobile App Development +9
    10% AR/VR Development
    10% Custom Software Development
    10% Web Design
    5% AI Development
    5% API Development
    5% Application Management & Support
    5% E-Commerce Development
    5% IT Managed Services
    5% Other Application Development

    Focus Areas

    21% JavaScript
    16% Java
    11% Redux +9
    11% Ruby
    6% Kotlin
    5% ASP.NET
    5% C++
    5% PHP
    5% Python
    5% SQL
    5% Visual Basic
    5% jquery

    Crocuszone is a custom software development firm established in 2020. Headquartered in Lahore, Pakistan and New York, New York, the team offers Custom Software Development and Web Design.

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  • Unaire Sync IT Solutions Pvt. Ltd. Logotype

    Unaire Sync IT Solutions Pvt. Ltd.

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% API Development
    10% Application Management & Support +7
    10% Application Testing
    10% Custom Software Development
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% Mobile App Development
    10% Other Application Development
    10% UX/UI Design

    Focus Areas

    21% JavaScript
    11% Other programming & scripting languages
    11% PHP +8
    11% Python
    11% SQL
    11% XML
    5% Apex
    5% HTML5
    5% Redux
    5% Swift
    4% AJAX

    Launched in 2023, Unaire Sync IT Solutions Pvt. Ltd. Is an UX design agency. The small team offers UX/UI Design and Custom Software Development.

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  • Enhance New Media Logotype

    Enhance New Media

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    Freelancer

    Services provided

    18% Web Development
    28% Digital Strategy
    19% Pay Per Click +3
    19% Search Engine Optimization
    8% Social Media Marketing
    8% Web Design

    Focus Areas

    20% JavaScript
    30% PHP
    30% SQL +1
    20% XML

    Enhance New Media is a Digital Strategy company. They are based in Andover, England, and their services include Digital Strategy and Search Engine Optimization.

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  • New Path Digital Logotype

    Not yet reviewed

    $5,000+
    Undisclosed
    2 - 9
    High Point, NC

    Services provided

    10% Web Development
    20% Advertising
    20% Marketing Strategy +4
    20% Media Planning & Buying
    10% Pay Per Click
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    40% SQL
    20% Other programming & scripting languages +2
    20% Python
    10% Java

    New Path Digital is an Advertising company. They are headquartered in High Point, North Carolina, and their services include Advertising and Marketing Strategy.

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  • Pinakii Digital Marketing Logotype

    Not yet reviewed

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

    Services provided

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

    Focus Areas

    25% JavaScript
    25% HTML5
    25% Other programming & scripting languages +1
    25% PHP

    Pinakii Digital Marketing is a Ghaziabad, India-based branding agency. They provide Branding and Social Media Marketing.

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  • Involve Logotype

    Involve

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% E-Commerce Development
    15% Custom Software Development +8
    15% IT Staff Augmentation
    10% UX/UI Design
    5% Application Testing
    5% Graphic Design
    5% Mobile App Development
    5% Pay Per Click
    5% Social Media Marketing
    5% Web Design

    Focus Areas

    20% JavaScript
    40% PHP
    20% SQL +3
    10% Java
    5% Kotlin
    5% Python

    Involve is a small e-commerce development company located in Skopje, North Macedonia and Sheridan, Wyoming. The team specializes in E-Commerce Development and IT staff augmentation.

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  • PC Klinika Zagreb Logotype

    5.0 1 review
    Undisclosed
    < $25 / hr
    2 - 9
    Zagreb, Croatia

    Services provided

    20% Web Development
    20% IT Managed Services
    20% IT Strategy Consulting +2
    20% Low/No Code Development
    20% Other IT Consulting and SI

    Focus Areas

    10% JavaScript
    50% HTML5
    30% Other programming & scripting languages +1
    10% XML

    , Potrebna Vam je zamjena diska ili nadogradnja memorije? Trebate izradu  ili želite ugovoriti za tvrtku? Iz ponude izdvajamo: na terenu i i drugih

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    $150 Za privatne korisnike, obrte i manje tvrtke. $0 / $0 /

    Izrada web stranice + free hosting

    Povoljna izrada web stranice koja će predstavljati Vaš poslovni brend, portfolio, životopis ili usluge Vaše tvrtke. Osim moderne i responzivne internet stranice, osigurali smo besplatan SSL certifikat za sigurnu HTTPS vezu, profesionalnu mail adresu, osnovni 'on-page' SEO i besplatan hosting na godinu dana. https://pcklinika.eu/
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  • Pixel WebCare Logotype

    Pixel WebCare

    5.0 1 review
    $5,000+
    $50 - $99 / hr
    2 - 9

    Services provided

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

    Focus Areas

    15% JavaScript
    30% PHP
    30% SQL +3
    15% ASP.NET
    5% HTML5
    5% jquery

    Pixel WebCare specializes in e-commerce website development, delivering projects with precision and sincerity. The reviews highlight their effective project management, timely delivery, and responsive communication. Clients appreciate the company's dedication to achieving desired outcomes and consider their services a good value for the cost.

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  • Arktic Studio Logotype

    5.0 1 review
    Undisclosed
    $50 - $99 / hr
    2 - 9
    Højbjerg, Denmark

    Services provided

    10% Web Development
    25% E-Commerce Development
    20% Conversion Optimization +5
    19% Low/No Code Development
    10% UX/UI Design
    10% Web Design
    5% Digital Strategy
    1% Custom Software Development

    Focus Areas

    20% JavaScript
    20% HTML5
    20% Java +4
    15% jquery
    10% Python
    10% Ruby
    5% PHP

    Arktic Studio specializes in Web Development, Web Design, and Online Development, providing services such as domain management and Shopify integration. Reviews highlight their exceptional communication, timely project delivery, and the high value of their services, making Arktic Studio a favorable choice for web programming needs.

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  • Tech and Limon Logotype

    5.0 1 review
    Undisclosed
    $50 - $99 / hr
    2 - 9
    Las Vegas, NV

    Services provided

    10% Web Development
    10% Cloud Consulting & SI
    10% Computer Engineering +7
    10% Custom Software Development
    10% E-Commerce Development
    10% Microservices Architecture Services
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design

    Focus Areas

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

    Tech and Limon specializes in Website Development and Web Design, providing tailored solutions that enhance online presence and generate leads. Reviews highlight the company's ability to deliver fast-loading, effective websites that meet client requirements. Clients appreciate their responsiveness and budget-friendly services, although they suggest enhancements in project management tools for improved transparency.

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  • EPixel Solution Logotype

    5.0 1 review
    $5,000+
    < $25 / hr
    2 - 9
    Skopje, North Macedonia

    Services provided

    20% Web Development
    20% Mobile App Development
    15% AI Development +8
    10% IT Staff Augmentation
    5% AI Agents
    5% Cloud Consulting & SI
    5% Cybersecurity
    5% DevOps Managed Services
    5% E-Commerce Development
    5% IT Managed Services
    5% IoT Development

    Focus Areas

    10% JavaScript
    20% Swift
    20% Typescript +5
    10% Kotlin
    10% Objective C
    10% Python
    10% Redux
    10% SQL

    REH SOLUCION DOOEL provides comprehensive software development services, including mobile and desktop applications, with expertise in projects such as healthcare and wearable technology applications. Their reviews highlight exceptional project management skills and effective communication, ensuring high-quality and timely project delivery. The company is praised for its professionalism, expertise, and alignment with client values.

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  • D-Consult Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9
    Sofia, Bulgaria

    Services provided

    10% Web Development
    60% Custom Software Development
    30% Mobile App Development

    Focus Areas

    20% JavaScript
    20% Java
    20% PHP +4
    20% Ruby
    10% C#
    5% ASP.NET
    5% SQL

    D-Consult is a small custom software development firm. Established in 2012, the team offers Custom Software Development and Mobile App Development.

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  • HariOm Technologies Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    40% Mobile App Development
    20% Custom Software Development +1
    20% E-Commerce Development

    Focus Areas

    10% JavaScript
    40% Java
    40% PHP +1
    10% AJAX

    HariOm Technologies is a mobile app development firm in Bhopal, India. They focus on Mobile App Development and Custom Software Development and were founded in 2008.

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  • KREATIVEE Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    25% Branding
    20% Content Marketing +3
    20% Social Media Marketing
    10% Graphic Design
    5% Other Marketing

    Focus Areas

    10% JavaScript
    40% PHP
    20% Java +2
    20% Swift
    10% SQL

    KREATIVEE is a branding firm. Their small team of employees is headquartered in Tazlău, Romania. Their team specializes in Branding and Social Media Marketing.

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  • Ethos Technologies Logotype

    Ethos Technologies

    Not yet reviewed

    $10,000+
    $200 - $300 / hr
    2 - 9

    Services provided

    10% Web Development
    20% Custom Software Development
    10% AI Development +9
    10% Blockchain
    10% IT Strategy Consulting
    10% Mobile App Development
    5% BI & Big Data Consulting & SI
    5% Cloud Consulting & SI
    5% Cybersecurity
    5% Product Design
    5% UX/UI Design
    5% Web Design

    Focus Areas

    20% JavaScript
    30% Other programming & scripting languages
    20% Java +3
    10% C#
    10% Python
    10% Ruby

    Ethos Technologies is a custom software development company. Launched in 2017, the agency is based in Riyadh, Saudi Arabia. Their team offers Custom Software Development and Artificial Intelligence.

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  • Now-IT Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    15% Custom Software Development
    15% Web Design +9
    10% Application Management & Support
    10% E-Commerce Development
    10% Graphic Design
    5% Broadcast Video
    5% Logo
    5% Packaging Design
    5% Print Design
    5% Product Design
    5% UX/UI Design

    Focus Areas

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

    Launched in 2016, Now-IT is a software development firm. The team offers Custom Software Development and Web Design.

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  • Meteorit Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9
    Ciudad de México, Mexico

    Services provided

    20% Web Development
    25% Web Design
    20% Social Media Marketing +3
    15% Content Marketing
    15% Custom Software Development
    5% Logo

    Focus Areas

    10% JavaScript
    10% AJAX
    10% C +7
    10% Java
    10% PHP
    10% Perl
    10% Python
    10% Ruby
    10% SQL
    10% XML

    Founded in 2017, Meteorit is a small web design company. Their team provides Web Design and Social Media Marketing.

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  • Appffinity Logotype

    Appffinity

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% Custom Software Development
    30% Web Design +5
    10% Mobile App Development
    5% Digital Strategy
    5% E-Commerce Development
    5% Product Design
    5% UX/UI Design

    Focus Areas

    20% JavaScript
    50% PHP
    15% Java +1
    15% Swift

    Custom software development firm Appffinity offers Custom Software Development and Web Design. They are in Guayaquil, Ecuador.

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  • Seelogics Inc Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    10% Application Testing +5
    10% E-Commerce Development
    10% Graphic Design
    10% IT Strategy Consulting
    10% Logo
    10% Web Design

    Focus Areas

    10% JavaScript
    20% PHP
    20% Python +5
    10% C++
    10% Java
    10% Other programming & scripting languages
    10% Ruby
    10% SQL

    Seelogics Inc is a custom software development firm. They are in Toronto, Canada and Chennai, India and have small team. Their services include Custom Software Development and Web Development.

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  • Datrock Logotype

    Datrock

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% BI & Big Data Consulting & SI
    30% IT Managed Services +1
    20% Custom Software Development

    Focus Areas

    10% JavaScript
    70% Python
    20% Other programming & scripting languages

    Big data analytics company Datrock was founded in 2018. The team provides BI & big data consulting & SI and IT managed services and is in Kyiv, Ukraine.

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  • InAnalytica Logotype

    InAnalytica

    Not yet reviewed

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

    Services provided

    15% Web Development
    20% ERP Consulting and SI
    15% Custom Software Development +7
    15% E-Commerce Development
    10% Email Marketing
    5% Graphic Design
    5% IT Strategy Consulting
    5% Pay Per Click
    5% Search Engine Optimization
    5% Social Media Marketing

    Focus Areas

    15% JavaScript
    15% Java
    15% PHP +5
    15% Python
    10% ASP.NET
    10% C#
    10% SQL
    10% XML

    InAnalytica is a small ERP consulting and SI company based in India. The team specializes in ERP consulting and SI and Custom Software Development.

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  • Brandvalor LLC Logotype

    Brandvalor LLC

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Web Development
    25% Branding
    25% UX/UI Design +3
    20% Mobile App Development
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

    20% JavaScript
    30% ASP.NET
    30% PHP +1
    20% SQL

    Small UX design agency Brandvalor LLC, is in Cincinnati, Ohio. The team offers UX/UI Design and Branding.

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  • Rotros Logotype

    Rotros

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    20% Web Development
    30% Mobile App Development
    20% Custom Software Development +2
    20% Enterprise App Modernization
    10% Wearable App Development

    Focus Areas

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

    Rotros is a small İstanbul, Türkiye-based app development firm. The team offers Mobile App Development and Custom Software Development.

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  • Cyvyon Technologies Logotype

    Cyvyon Technologies

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Web Development
    20% Product Design
    10% Application Management & Support +6
    10% Custom Software Development
    10% E-Commerce Development
    10% IT Managed Services
    10% IT Strategy Consulting
    10% Mobile App Development
    10% Web Design

    Focus Areas

    20% JavaScript
    40% PHP
    10% ASP.NET +3
    10% C++
    10% Ruby
    10% SQL

    Based in Ahmedabad, India, Cyvyon Technologies is a Product Design company. Founded in 2017, the team offers Product Design and Custom Software Development.

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  • Medios Eureka Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    20% Custom Software Development
    20% Mobile App Development +4
    10% Enterprise App Modernization
    10% Other Application Development
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

    10% JavaScript
    20% PHP
    20% SQL +5
    10% AJAX
    10% C#
    10% Java
    10% Python
    10% Redux

    Medios Eureka is a small software development company founded in 2014. Their services include Custom Software Development and Mobile App Development.

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  • Neotech Solutions Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% Web Design
    10% Affiliate Marketing +4
    10% Cybersecurity
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    10% JavaScript
    50% PHP
    20% SQL +2
    10% AJAX
    10% C#

    Neotech Solutions is a web design agency. Headquartered in Surat, India, the company was founded in 2016. Their services include Web Design and Web Development.

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  • Kenekt Digital Logotype

    Not yet reviewed

    Undisclosed
    $100 - $149 / hr
    2 - 9
    Amsterdam, Netherlands

    Services provided

    10% Web Development
    40% Social Media Marketing
    20% Content Marketing +2
    20% Search Engine Optimization
    10% Pay Per Click

    Focus Areas

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

    Kenekt Digital is a social media marketing firm. The team focuses on Social Media Marketing and Content Marketing and is located in Amsterdam, Netherlands.

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  • Nocktech Inc Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% Custom Software Development
    25% Search Engine Optimization +3
    10% Content Marketing
    10% Pay Per Click
    5% Digital Strategy

    Focus Areas

    10% JavaScript
    30% PHP
    30% SQL +2
    20% C#
    10% Visual Basic

    Based in Newmarket, Canada, Nocktech Inc is a small custom software development company. The team focuses on Custom Software Development and Search Engine Optimization.

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  • Digitaro Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    2 - 9
    Karachi, Pakistan

    Services provided

    15% Web Development
    30% Social Media Marketing
    10% E-Commerce Development +9
    10% Mobile App Development
    10% Video Production
    5% Graphic Design
    5% UX/UI Design
    3% Corporate Photography
    3% Logo
    3% Packaging Design
    3% Print Design
    3% Product Design

    Focus Areas

    15% JavaScript
    15% Kotlin
    15% Python +5
    15% Redux
    10% C#
    10% C++
    10% SQL
    10% Swift

    Established in 2019, Digitaro is a social media marketing firm. Their services include Social Media Marketing and Web Development.

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  • Blitz SD Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    20% Custom Software Development
    10% AI Development +6
    10% Application Testing
    10% IT Strategy Consulting
    10% Mobile App Development
    10% Other Application Development
    10% UX/UI Design
    10% Web Design

    Focus Areas

    20% JavaScript
    40% C#
    30% ASP.NET +1
    10% Other programming & scripting languages

    Blitz SD is a custom software development company based in Kyiv, Ukraine. The team offers Custom Software Development and UX/UI Design.

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  • Ltech Dev Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    30% Custom Software Development
    10% Cybersecurity +4
    10% Graphic Design
    10% Logo
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% JavaScript
    30% Java
    30% PHP +3
    10% Other programming & scripting languages
    10% Python
    10% SQL

    Ltech Dev is a software development firm launched in 2017. The team focuses on Custom Software Development and Web Development.

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  • AppSacks Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    2 - 9
    California City, CA

    Services provided

    20% Web Development
    20% Mobile App Development
    15% Custom Software Development +8
    10% Digital Strategy
    10% E-Commerce Development
    10% IT Strategy Consulting
    8% Application Testing
    2% Application Management & Support
    2% Other Application Development
    2% Wearable App Development
    1% Enterprise App Modernization

    Focus Areas

    10% JavaScript
    30% PHP
    20% Java +4
    10% ASP.NET
    10% Python
    10% SQL
    10% Swift

    AppSacks is a website development company. In California City, California and New Delhi, India, the firm provides Web Development and Mobile App Development.

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  • ESPARSE MATRIX SOLUTIONS PRIVATE LIMITED Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    25% Custom Software Development
    25% Mobile App Development +2
    20% E-Commerce Development
    10% AI Development

    Focus Areas

    10% JavaScript
    50% Kotlin
    20% Python +2
    15% PHP
    5% SQL

    ESPARSE MATRIX SOLUTIONS PRIVATE LIMITED is a software development company. They are based in Pimpri-Chinchwad, India. Their team offers Custom Software Development and Mobile App Development.

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  • OCTONEU Nigeria Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Architectural Design
    10% Content Marketing +7
    10% Custom Software Development
    10% Graphic Design
    10% Product Design
    10% Social Media Marketing
    10% UX/UI Design
    10% Video Production
    10% Web Design

    Focus Areas

    20% JavaScript
    20% ASP.NET
    20% PHP +3
    20% SQL
    10% AJAX
    10% ASP

    OCTONEU Nigeria is a social media marketing firm. The team offers Social Media Marketing and Content Marketing, and the company is based in Warri, Nigeria.

    Read more

    More responsive than most other service providers

    OCTONEU Nigeria is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch
    View Profile
  • Spaceful Designs LLC Logotype

    Not yet reviewed

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

    Services provided

    15% Web Development
    25% Web Design
    10% AR/VR Development +14
    6% Event Marketing
    6% Media Planning & Buying
    5% Print Design
    4% UX/UI Design
    3% Advertising
    3% Branding
    3% Custom Software Development
    3% Graphic Design
    3% Logo
    3% Mobile App Development
    3% Other Design
    3% Packaging Design
    3% Product Design
    2% Direct Marketing

    Focus Areas

    21% JavaScript
    26% PHP
    8% AJAX +14
    5% Ember.js
    5% Python
    5% Redux
    5% Ruby
    5% SQL
    5% Swift
    5% Visual Basic
    4% Perl
    1% ASP
    1% ASP.NET
    1% C
    1% C#
    1% C++
    1% Java

    Spaceful Designs LLC is a web design agency. They focus on Web Design and Web Development and were founded in 2015.

    Read more
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  • Developers Desk Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    2 - 9
    Islamabad, Pakistan

    Services provided

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

    Focus Areas

    10% JavaScript
    20% Java
    20% PHP +5
    10% Other programming & scripting languages
    10% Python
    10% SQL
    10% Swift
    10% Typescript

    Custom software development company Developers Desk was launched in 2002. The small team offers Custom Software Development and Web Development.

    Read more
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  • Fiddmark Tech S.R.L Logotype

    Not yet reviewed

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

    Services provided

    20% Web Development
    60% Web Design
    20% Custom Software Development

    Focus Areas

    10% JavaScript
    30% PHP
    30% SQL +2
    25% Other programming & scripting languages
    5% Python

    Founded in 2021, Fiddmark Tech S.R.L is a web design company. Their services include Web Design and Custom Software Development.

    Read more
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  • Crockwell Solutions Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    2 - 9
    Farnham, England

    Services provided

    10% Web Development
    50% Custom Software Development
    20% Cloud Consulting & SI +2
    10% Application Management & Support
    10% Mobile App Development

    Focus Areas

    20% JavaScript
    20% Other programming & scripting languages
    20% Python +3
    20% SQL
    10% Objective C
    10% Swift

    Founded in 2020, Crockwell Solutions is a small software development company. Their services include Custom Software Development and cloud consulting & SI.

    Read more
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  • Webline Africa Limited Logotype

    Webline Africa Limited

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% IT Managed Services
    20% Custom Software Development +3
    20% IT Strategy Consulting
    10% E-Commerce Development
    10% Mobile App Development

    Focus Areas

    20% JavaScript
    20% Java
    20% PHP +4
    10% Kotlin
    10% SQL
    10% Swift
    10% XML

    Webline Africa Limited, an IT managed services company, was established in 2013. Located in Dar es Salaam, Tanzania, the team specializes in IT managed services and IT strategy consulting.

    Read more
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  • Gamut Dev Logotype

    Not yet reviewed

    $1,000+
    $300+ / hr
    2 - 9
    Los Angeles, CA

    Services provided

    16% Web Development
    18% UX/UI Design
    17% Web Design +4
    15% Mobile App Development
    12% Architectural Design
    12% Custom Software Development
    10% Logo

    Focus Areas

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

    Gamut Dev is an user experience design agency launched in 2010. The firm offers UX/UI Design and Web Design.

    Read more
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  • Wondersoft Solutions Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9
    Ambala Cantt, India

    Services provided

    10% Web Development
    15% E-Commerce Development
    10% Advertising +10
    10% Branding
    10% Custom Software Development
    10% Web Design
    5% Graphic Design
    5% IoT Development
    5% Logo
    5% Mobile App Development
    5% Pay Per Click
    5% Search Engine Optimization
    5% Social Media Marketing

    Focus Areas

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

    Wondersoft Solutions is an e-commerce development firm. They are based in Ambala Cantt, India, and their services include E-Commerce Development and Advertising.

    Read more
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  • BOET Logotype

    BOET

    Not yet reviewed

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

    Services provided

    20% Web Development
    25% AI Development
    25% Blockchain +2
    20% Custom Software Development
    10% Mobile App Development

    Focus Areas

    10% JavaScript
    20% C++
    20% Go +4
    20% Typescript
    10% Java
    10% Python
    10% SQL

    BOET is a Warszawa, Poland-based AI development company. Founded in 2021, the team focuses on Artificial Intelligence and Blockchain.

    Read more
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  • Bold Dialogue Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    10% Content Marketing
    10% Digital Strategy +12
    10% UX/UI Design
    10% Web Design
    5% Conversion Optimization
    5% E-Commerce Development
    5% Email Marketing
    5% Graphic Design
    5% Logo
    5% Mobile & App Marketing
    5% Pay Per Click
    5% Search Engine Optimization
    5% Social Media Marketing
    5% Video Production

    Focus Areas

    20% JavaScript
    50% PHP
    20% SQL +1
    10% AJAX

    Launched in 2017, Bold Dialogue is a Digital Strategy company. The team focuses on Digital Strategy and Content Marketing and is located in Pune, India.

    Read more
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  • migaloodigital Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    2 - 9
    Byron Bay, Australia

    Services provided

    10% Web Development
    15% Blockchain
    15% Graphic Design +5
    15% Mobile App Development
    15% UX/UI Design
    10% Low/No Code Development
    10% Other Digital Marketing
    10% Web Design

    Focus Areas

    20% JavaScript
    30% PHP
    25% SQL +2
    15% Ruby
    10% AJAX

    Web design company migaloodigital offers Web Design and UX/UI Design. They are based in Byron Bay, Australia.

    Read more
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  • DigiDeft Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    12% Marketing Strategy
    10% Content Marketing +14
    10% Digital Strategy
    10% Pay Per Click
    5% Branding
    5% E-Commerce Development
    5% Email Marketing
    5% Graphic Design
    5% Logo
    5% Mobile & App Marketing
    5% Search Engine Optimization
    5% Social Media Marketing
    5% Web Design
    1% Market Research
    1% Product Marketing
    1% Video Production

    Focus Areas

    20% JavaScript
    30% PHP
    20% SQL +3
    10% AJAX
    10% ASP.NET
    10% XML

    DigiDeft is a Marketing Strategy company. Founded in 2020, the team focuses on Marketing Strategy and Digital Strategy.

    Read more
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  • SparroWave Global Business Solutions Logotype

    Not yet reviewed

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

    Services provided

    10% Web Development
    30% E-Commerce Development
    30% Mobile App Development +3
    10% Low/No Code Development
    10% Search Engine Optimization
    10% Web Design

    Focus Areas

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

    Application development company SparroWave Global Business Solutions was established in 2017. The small team offers Mobile App Development and E-Commerce Development.

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

List of the Top 15 JavaScript Development Companies

  1. Brainhub Logotype

    Brainhub

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

    Ability to deliver

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

    Service focus

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

    xfive

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

    Ability to deliver

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

    Service focus

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

    ImageX

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

    Ability to deliver

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

    Service focus

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

    The Software House

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

    Ability to deliver

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

    Service focus

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

    ATEAM SOFT SOLUTIONS

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

    Ability to deliver

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

    Service focus

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

    Airdev

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

    Ability to deliver

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

    Service focus

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

    Xmartlabs

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

    Ability to deliver

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

    Service focus

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

    Toptal

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

    Ability to deliver

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

    Service focus

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

    Softonix

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

    Ability to deliver

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

    Service focus

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

    INOXOFT

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

    Ability to deliver

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

    Service focus

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

    Lizard Global

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

    Ability to deliver

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

    Service focus

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

    PopArt Studio

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

    Ability to deliver

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

    Service focus

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

    GeekyAnts

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

    Ability to deliver

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

    Service focus

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

    SpdLoad

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

    Ability to deliver

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

    Service focus

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

    Techuz InfoWeb Pvt. Ltd.

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

    Ability to deliver

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

    Service focus

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

    HTMLPanda

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

    Ability to deliver

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

    Service focus

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

    Sigma Software Group

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

    Ability to deliver

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

    Service focus

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

    Incora

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

    Ability to deliver

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

    Service focus

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

    Cleveroad

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

    Ability to deliver

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

    Service focus

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

    Brainium Information Technologies

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

    Ability to deliver

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

    Service focus

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

    WPWeb Infotech

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

    Ability to deliver

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

    Service focus

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

    Experion Technologies

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

    Ability to deliver

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

    Service focus

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

    Human Made

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

    Ability to deliver

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

    Service focus

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

    Probey Services

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

    Ability to deliver

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

    Service focus

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

    Blazity

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

    Ability to deliver

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

    Service focus

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

    XWP

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

    Ability to deliver

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

    Service focus

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

    Vincit

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

    Ability to deliver

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

    Service focus

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

    PowerGate Software

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

    Ability to deliver

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

    Service focus

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

    Arcanys

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

    Ability to deliver

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

    Service focus

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

Top JavaScript Development Agencies

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

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

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

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

Clutch data shows project budgets range widely:

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

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

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

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

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

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

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

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

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

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