Top JavaScript Developers
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 89 projectsDigis, a Fiverr company (NYSE: FVRR), specializes in Web Development, providing comprehensive services such as Front-End Development, Back-End Development, and Custom Website Development. Their reviews indicate a 100% satisfaction rate, highlighting their strong project management, technical expertise, and clear communication. Approximately 70% of reviewers emphasize their seamless integration into teams and high-quality deliverables.
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$5,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 10 projectsRasonix is a versatile web development company specializing in custom website development, web application development, and full-stack web development services. Across their reviews, 100% of clients commend Rasonix for their timely delivery and professional approach, with particular praise for their ability to meet project timelines and align technical solutions with client needs. Their expertise in integrating complex functionalities and providing robust website solutions results in consistently positive feedback.
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$10,000+$100 - $149 / hr10 - 49Hopkinton, NH
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See all 7 projectsLaunch Theory is a full-stack web development company specializing in custom website development, web application development, and online development services. Clients consistently praise their professionalism, responsiveness, and cost-effectiveness, with approximately 90% of feedback highlighting their excellent project management and communication. The company's ability to integrate seamlessly into clients' teams and their dedication to providing versatile development solutions are frequently noted.
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$25,000+$50 - $99 / hr50 - 249Lahore, Pakistan
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See all 40 projectsTintash is a versatile development company specializing in Web Application Development, Custom Website Development, and Full-Stack Web Development, among other services, with a proven track record in delivering comprehensive digital solutions. Their reviews highlight a customer-centric approach, quality work, and effective project management, with 100% positive feedback on their flexibility and ability to meet deadlines, making them a reliable partner for tech projects.
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$5,000+$50 - $99 / hr10 - 49
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See all 3 projectsSubcoDevs Inc is a versatile technology services company specializing in mobile app development, web development, and scalable system solutions. Across their reviews, 100% of clients praised their professional project management, timely communication, and dedication to high-quality outcomes. Clients specifically noted the company's strong team dynamics and ability to enhance user experience, with 67% of reviewers highlighting impressive communication and task completion.
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$10,000+$25 - $49 / hr50 - 249Łódź, Poland
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See all 15 projectsLaSoft is a web development company specializing in custom website development and full-stack web application development. Reviewers consistently praise their effective project management, timely communication, and high-quality deliverables. Approximately 85% of reviews highlight their strong collaboration skills, and around 70% commend their ability to exceed expectations while offering competitive pricing. Some reviews suggest minor improvements in project timelines and pricing strategies.
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$50,000+$150 - $199 / hr10 - 49Chicago, IL
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See all 47 projectsHighland is a distinguished Web Development company specializing in custom website development and web application development. They excel in front-end and back-end development, with 100% of reviewers highlighting their strategic and design expertise. While communication was sometimes noted as an area for improvement, 75% of reviews praised their innovative approach and commitment to project success.
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$10,000+$25 - $49 / hr10 - 49دبي, United Arab Emirates
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See all 19 projectsWebSailors.pro is a prominent web development company specializing in full-stack web development, custom website development, and web application development. Clients frequently commend their adaptability, professionalism, and effective project management, which is evident in 100% positive feedback across reviews. Notably, 83% of reviewers highlight their technical expertise and seamless integration of complex functionalities. The firm demonstrates exceptional flexibility, ensuring timely delivery and high-quality outcomes.
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$25,000+$150 - $199 / hr10 - 49Portland, OR
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See all 22 projectsPlanet Argon is a web development company known for its expertise in Ruby on Rails and full-stack web development. They excel in custom website development, web application development, and both front-end and back-end development. Positive feedback from clients is consistent, with approximately 100% of reviewers commending their project management skills and technical expertise. Clients praise their professionalism, effective communication, and ability to deliver projects on time and within budget. Planet Argon's collaborative approach and dedication to understanding client needs make them a preferred partner for ongoing development projects.
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$25,000+$25 - $49 / hr250 - 999
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See all 32 projectsMaruti Techlabs is a versatile web development company specializing in full-stack web development, custom software solutions, and chatbot creation. Reviewers consistently praise their project management skills and technical expertise, with approximately 100% of feedback highlighting their professional approach and timely delivery. Their ability to provide quality talent and maintain strong communication makes them a preferred partner across various industries.
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$1,000+$25 - $49 / hr250 - 999Delhi, India
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See all 17 projectsNethues Technologies Pvt. Ltd. is a dynamic web development company specializing in custom website development, front-end and back-end development, and web application development. Their impressive track record is highlighted by 100% positive feedback, with clients praising their technical proficiency, excellent project management, and clear communication. Approximately 86% of reviewers commend their ability to understand and meet client needs, contributing to improved online visibility and significant business growth.
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$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
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See all 24 projectsGP Solutions is a web development company specializing in custom website development, web application development, and full-stack web development services. They have received overwhelmingly positive feedback, with reviewers praising their deep expertise, professional project management, timely delivery, and competitive pricing. Approximately 85% of reviewers highlight their technical proficiency and commitment to quality. GP Solutions is recognized for its ability to deliver high-quality, integrated digital solutions tailored to industry-specific needs.
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$25,000+$150 - $199 / hr50 - 249Boston, MA
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See all 8 projectsThird and Grove is a web development company specializing in custom website development, front-end and back-end development, and web application development. They receive overwhelmingly positive feedback, with clients praising their expertise, responsiveness, and project management capabilities. Approximately 90% of reviews highlight their effective communication and ability to meet deadlines, making them a trusted partner for complex web projects.
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$10,000+$50 - $99 / hr50 - 249Sarajevo, Bosnia and Herzegovina
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See all 11 projectsMinistry of Programming is a web development company specializing in Web Application Development and Full-Stack Web Development. Reviews highlight their exceptional project management, strategic partnership approach, and commitment to startups, with 100% positive feedback emphasizing their reliability, proactive communication, and cultural alignment. They have successfully delivered scalable platforms, demonstrating strong technical expertise and a collaborative ethos.
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$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 13 projectsELITEX is a full-service web development company specializing in front-end development, back-end development, and infrastructure architecture. With a 100% positive feedback rate, clients commend their skilled developers, timely delivery, and responsiveness. ELITEX is frequently praised for their problem-solving capabilities, proactive communication, and ability to provide valuable insights, making them a reliable partner for custom web development projects.
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Undisclosed$150 - $199 / hr10 - 49Durham, NC
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See all 3 projectsCaktus Group is a web development company specializing in custom web application development, particularly using Django and Python. The overall feedback from their clients is overwhelmingly positive, with 100% of reviewers noting their flexibility, expertise, and ability to deliver projects on or ahead of schedule. Clients also appreciate Caktus Group's seamless integration into their teams and their proactive approach to process improvements.
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$25,000+$50 - $99 / hr50 - 249
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See all 26 projectsGoldfish Code is a versatile web development company offering a range of services including Web Development, Web Application Development, and Back-End Development. With consistently positive feedback, 100% of reviewers praised their communication, responsiveness, and ability to deliver complex projects efficiently. Clients commend their alignment with company values and their ability to enhance website and database functionality.
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$10,000+$50 - $99 / hr10 - 49New York, NY
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See all 50 projectsOff-Site Services is a versatile web development company specializing in CMS implementation, scalable web platforms, and website migrations. They consistently receive positive reviews, with over 90% of feedback highlighting their strong project management, responsiveness, and alignment with client values. Key strengths include their focus on custom solutions, scalability, and seamless integration, making them a reliable choice for web development and design projects.
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$100,000+$100 - $149 / hr250 - 999Edinburgh, Scotland
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See all 5 projectsxDesign is a digital agency specializing in mobile app and web development, with a strong emphasis on UI/UX design. Across their reviews, clients consistently praise their technical expertise, collaborative approach, and effective project management. Approximately 100% of reviewers highlight their ability to integrate seamlessly with clients' teams, and there are no significant areas for improvement mentioned. This demonstrates a high satisfaction rate among clients.
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$10,000+$25 - $49 / hr10 - 49
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See all 16 projectsGeeks of Kolachi is a full-stack web development company excelling in custom website development and web application development. With a 100% positive feedback rate across reviews, clients consistently praise their speed, quality of work, and excellent project management. Their adaptability and commitment to client success make them a top choice for web development and online development projects.
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$10,000+$50 - $99 / hr10 - 49Kraków, Poland
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See all 30 projectsUIG Studio is a versatile web development company specializing in custom website development, web application development, and both front-end and back-end development. The reviews consistently highlight their effective project management, rapid communication, and high-quality deliverables. Approximately 90% of the reviews emphasize their professionalism and problem-solving abilities, while around 80% of clients appreciate their design-led approach and innovative solutions.
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$5,000+$100 - $149 / hr50 - 249Burnaby, Canada
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See all 8 projectsBACKBONE is a web development company specializing in custom website development, web application development, and full-stack web development. The overall feedback is 80% positive, with clients highlighting their strong project management skills and commitment to deadlines. Approximately 60% of reviewers praise their ability to understand brand needs and deliver user-friendly, visually appealing websites, though improvements could be made in documentation and proactive engagement.
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$10,000+$25 - $49 / hr50 - 249Houston, TX
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See all 6 projectsCentric is a web development company specializing in website development, web design, and custom website development. Reviews indicate that 100% of clients praised their attention to detail, flexibility, and effective project management. Notably, two clients highlighted their ability to increase website traffic and brand perceived value, while 91% of feedback emphasized successful communication and expert advice.
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$10,000+$150 - $199 / hr10 - 49Ellicott City, MD
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See all 39 projectsUnleashed Technologies is a full-stack web development company specializing in custom website development and web application development. Across their reviews, they are commended for their technical expertise, flexibility, and strong project management skills. Approximately 90% of reviewers highlight their effective communication and ability to tailor solutions to client needs, while around 80% emphasize their proficiency in Drupal and WordPress platforms.
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$10,000+$50 - $99 / hr10 - 49Futog, Serbia
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See all 9 projectsGinger IT Solutions is a comprehensive web development company specializing in full-stack web development, web design, and web programming, with a robust focus on custom website development and online development. They boast a high level of client satisfaction, with over 85% of reviews highlighting their expertise in delivering modern, scalable solutions and effective communication. Their commitment to understanding client needs and maintaining strategic partnerships is highly praised across reviews.
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$10,000+$50 - $99 / hr10 - 49Neuhausen am Rheinfall, Switzerland
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See all 8 projectsLinum Labs is a Full-Stack Web Development company specializing in Web Application Development, Front-End Development, and Back-End Development. The reviews highlight their excellent communication, timely delivery, and high-quality work, with 100% of the feedback being positive, emphasizing their expertise in Web3, Mobile, and overall web programming solutions. Reviewers consistently recommend Linum Labs for their professional service and alignment with client values.
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$25,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 41 projectsUptech is a comprehensive web development company offering services in custom web, mobile app development, and UI/UX design. Reviews indicate a varied experience among clients, with approximately 70% conveying positive feedback, highlighting attributes such as reliability, communication, and expertise in technologies like TypeScript and React. However, about 30% of feedback points to challenges in transparency and project management, suggesting room for improvement in certain engagements.
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$5,000+$50 - $99 / hr2 - 9Kyiv, Ukraine
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See all 15 projectsDepo Studio is a web development company specializing in custom website development and web design, delivering meticulous front-end and back-end solutions. The reviews reveal a consistent theme of exceeding client expectations, with 100% positive feedback highlighting their exceptional project management, innovative design approach, and ability to deliver projects on time. Clients commend their expertise in full-stack web development and web application development, reflecting a strong culture of professionalism and creativity.
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$5,000+< $25 / hr1,000 - 9,999
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See all 36 projectsCISIN, a web development company, excels in providing a wide array of services including custom website development and web application development. The feedback from clients is largely positive, with 90% highlighting their professionalism, reliability, and cost-effectiveness. A notable strength is their project management skills, praised in 80% of reviews, ensuring timely communication and delivery. However, occasional communication issues have been reported by a minority, underscoring the need for clarity in post-project support agreements.
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$10,000+$25 - $49 / hr10 - 49București, Romania
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See all 13 projectsgenuineq is a web development company specializing in custom website development and application solutions. Their reviews reveal a consistent theme of high-quality deliverables and professional project management, with 100% of clients highlighting their effective communication and adaptability. Moreover, 80% of reviewers noted their impressive ability to understand and fulfill project requirements efficiently. Clients universally recommend genuineq for their excellent service and thoughtful approach.
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$5,000+$50 - $99 / hr2 - 9Burbank, CA
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See all 9 projectsDesignPax is a versatile web development and design company offering services in website and landing page development, digital marketing, and brand consultancy. Their reviews reflect a high level of customer satisfaction, with 100% of clients noting timely delivery and responsiveness. Clients frequently commend DesignPax's ability to understand their vision and goals, mentioning their strong project management skills and effective communication.
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$75,000+$150 - $199 / hr50 - 249Somerville, MA
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See all 1 projectsOHO Interactive is a digital agency specializing in website design and development, particularly using Drupal platforms. Their reviews highlight their dedication, high-quality coding, and effective project management. They have received predominantly positive feedback, with clients appreciating their insightful guidance and long-term partnership, although their smaller team size may limit the speed of larger projects.
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$50,000+$50 - $99 / hr50 - 249Cluj-Napoca, Romania
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See all 6 projectsCrafting Software Innovation is a full-stack web development company praised for its expertise in both front-end and back-end development. They receive overwhelmingly positive feedback, with over 90% of reviewers highlighting their outstanding project management skills and commitment to understanding client vision. Reviewers frequently commend their ability to deliver accurate solutions promptly and adapt to evolving project needs.
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$10,000+$50 - $99 / hr10 - 49Iași, Romania
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See all 18 projectsDigitalya OPS is a versatile Web Development company specializing in Web Application Development, offering services like Front-End and Back-End Development, Web Design, and Full-Stack Web Development. Reviews indicate a high level of customer satisfaction, with 100% of reviewers praising their professionalism, timely delivery, and effective project management. Clients value their user-centric approach and reliable partnership, making them a strong choice for custom website development needs.
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$5,000+< $25 / hr50 - 249hanoi, Vietnam
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See all 57 projectsPolitetech Software is a web development company specializing in custom web application development and full-stack web development solutions. The company consistently receives positive feedback, with 100% of reviewers praising their timely delivery, effective communication, and client-focused approach. Clients commend their ability to exceed expectations, enhance digital presence, and integrate complex systems seamlessly into user-friendly interfaces.
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$5,000+$50 - $99 / hr50 - 249Kharkiv, Ukraine
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See all 36 projectsRequestum is a versatile web development company specializing in services such as custom website development, front-end development, and full-stack web development. Their reviews reflect a 100% positive sentiment, highlighting their excellent communication, responsiveness, and ability to deliver projects on time and within budget. Notably, 100% of reviewers commend their collaborative approach and technical expertise.
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$25,000+$50 - $99 / hr10 - 49Martínez, Argentina
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See all 7 projectsABstract Solutions is a web development company specializing in front-end development using React, as evidenced by their work on landing pages for technology startups. Their reviews highlight a 100% success rate in meeting deadlines and praise their exceptional project management and flexibility, although some clients suggest involving customers more in daily project updates.
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$25,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 11 projectsINC4 is a web development company specializing in building and maintaining blockchain-integrated software tools. The reviews highlight a 100% positive feedback rate, emphasizing INC4's commitment to usability, functionality, and reliability. Clients praise their effective project management, adaptability, and deep investment in client success, making them a trusted partner for Web Dev and Custom Website Development projects.
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$25,000+$25 - $49 / hr10 - 49Sofia, Bulgaria
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See all 9 projectsApp Streams Ltd is a distinguished web development company that excels in full-stack web and application development, offering services like custom website development and web programming. With a notable 100% positive feedback rate, recurring themes in their reviews highlight their exceptional project management, strong cultural fit, and unparalleled design and engineering capabilities, making them a reliable long-term partner for clients.
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$100,000+$150 - $199 / hr10 - 49Montreal, Canada
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See all 12 projectsSymetris is a web development company specializing in solutions using the Drupal platform, offering services in custom website development, full-stack web development, and web application development. They are praised for their responsiveness and project management skills, with approximately 80% of reviews highlighting their effective communication and flexibility. While they excel in meeting timelines and providing quality deliverables, some clients noted room for improvement in proactive communication regarding project changes.
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$1,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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See all 9 projectsTCO TEAM is a web development company specializing in custom website development, web design, and full-stack web development. Reviews indicate 100% positive feedback, highlighting their professionalism, responsiveness, and ability to deliver projects that meet client needs. Clients appreciate their dedication to ensuring satisfaction and their capability in handling both front-end and back-end development effectively.
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$1,000+< $25 / hr250 - 999Ballinamore, Ireland
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See all 53 projectsQuantum IT Innovation is a web development company specializing in custom website development, web programming, and enhancing online presence through SEO services. With 100% positive feedback, clients commend their customer-centric approach, communication, and ability to deliver responsive websites that meet client expectations and improve lead generation. Their pricing and detailed project reports are frequently noted as impressive by 50% of reviewers.
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$50,000+$150 - $199 / hr10 - 49Ramat Gan, Israel
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See all 19 projects500Tech — Out of Business was a web development company that specialized in front-end and full-stack web development using technologies like React, AngularJS, and Node.js. Across reviews, 500Tech is praised for its professionalism, technical expertise, and ability to meet deadlines, with 100% of clients highlighting these qualities. Despite being considered expensive, clients valued their high-quality work and adaptability to project changes.
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$10,000+$25 - $49 / hr250 - 999L'viv, Ukraine
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See all 22 projectsAbto Software is a distinguished company specializing in web application development and custom web solutions. Highly praised by clients, 100% report satisfaction with their services, emphasizing their commitment to excellence and reliability. Reviewers frequently commend their project management capabilities and adaptability, with 50% noting their ability to meet diverse technical needs, as well as their collaborative approach in project execution.
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$25,000+Undisclosed50 - 249Zürich, Switzerland
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See all 7 projectsB-works is a web development company specializing in custom website development, web application development, and full-stack web development. Across their reviews, 100% of clients praised their effective communication, project management, and solution-oriented approach. Notably, clients experienced significant outcomes, such as a 50% increase in direct bookings post-launch and scalable, functional web solutions.
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$100,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 25 projectsStartupSoft is a versatile company specializing in software development services, including Web Development, Front-End Development, and Back-End Development. Across their reviews, they have been praised for their exceptional quality of work, responsiveness, and cultural alignment with clients' needs. Impressively, 100% of the reviews highlight their flexibility and effective project management, making them a reliable partner for custom development projects.
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$5,000+$50 - $99 / hr250 - 999Palo Alto, CA
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See all 78 projectsLITSLINK is a dynamic software development company specializing in Web Development and Web Application Development, with extensive expertise in both front-end and back-end solutions. Their reviews consistently highlight exceptional professionalism, responsiveness, and a strong alignment with client goals, with 100% of reviewers noting their ability to deliver high-quality results on time. Clients particularly commend their project management, value for cost, and seamless communication.
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$10,000+Undisclosed1,000 - 9,999Clearwater, FL
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See all 82 projectsChetu, Inc. is a web development company offering services in custom website development, full-stack web development, and web application development. Approximately 88% of reviews highlight their strong project management and responsiveness, with clients praising their commitment and proactive communication. However, about 12% of reviews report issues with accountability and communication, indicating room for improvement in these areas.
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$10,000+$50 - $99 / hr50 - 249Poznań, Poland
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See all 14 projectsBitnoise is a web development company specializing in custom website development, web application development, and full-stack web development. Reviews indicate a high satisfaction rate, with over 90% of clients praising their effective communication, flexibility, and technical expertise. A notable theme is their ability to seamlessly integrate into clients’ teams, delivering reliable and innovative solutions.
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$10,000+$25 - $49 / hr10 - 49
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See all 14 projectsCubeX LLC is a versatile web development company specializing in Custom Website Development, Full-Stack Web Development, and Web Application Development. With over 90% positive feedback, clients commend their rapid response times, proficiency in front-end and back-end development, and seamless adaptability to project management styles. The most notable aspect is their commitment to delivering high-quality, innovative solutions within strict deadlines.
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$10,000+$100 - $149 / hr10 - 49San Francisco, CA
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See all 27 projectsPLATFORM is a full-stack web development company specializing in custom website and web application development. The reviews highlight impressive design skills, effective communication, and strong project management, with approximately 100% positive feedback regarding their ability to create modern and user-friendly websites. Reviewers frequently commend the team's creativity, responsiveness, and ability to adapt to client needs, although some mention challenges with budget flexibility.
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List of the Top 15 JavaScript Development Companies
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$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.5/40.019.2/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
65% Web Development20% JavaScript35% Other -
$10,000+$50 - $99 / hr50 - 249Kuala Lumpur, Malaysia
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
39.5/40.019.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.6/40.019.6/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.6/40.016.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$1,000+< $25 / hr250 - 999Walpole, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.3/40.016.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.7/40.019.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37/40.018/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.3/40.018.4/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
28% Web Development15% JavaScript72% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.5/40.018.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.2/40.016.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$5,000+$50 - $99 / hr50 - 249Maribor, Slovenia
Ability to deliver
36.1/40.020/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
40% Web Development100% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
37.6/40.017.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$25,000+$50 - $99 / hr50 - 249Poznań, Poland
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Web Development10% JavaScript50% Other
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.