Top JavaScript Developers
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$25,000+Undisclosed50 - 249New York, NY
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See all 43 projectsLounge Lizard is a versatile web development company specializing in custom website development, web design, and digital marketing strategies. Their services receive consistently positive feedback, with 100% of reviewers praising their creativity, responsiveness, and professionalism. Clients highlight their strong project management and ability to deliver engaging, user-friendly websites that meet diverse client needs across various industries.
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$5,000+$50 - $99 / hr50 - 249
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See all 100 projectsRapidDev is a web development company specializing in custom website development, web app development, and full-stack web development. Clients consistently praise their project management and responsiveness, with 100% of reviews highlighting timely delivery and effective communication. Approximately 90% of reviewers commend RapidDev's ability to understand and adapt to client needs, and 85% appreciate their technical versatility and innovative solutions.
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$10,000+$200 - $300 / hr10 - 49Dallas, TX
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See all 17 projectsAmmo Studio is a web development company specializing in custom website development, offering services such as web design, web application development, and front-end and back-end development. Based on the reviews, 100% of clients highlight their effective project management, responsiveness, and high-quality deliverables. Clients frequently commend Ammo Studio for their professionalism, with 80% noting their impressive communication and ability to meet project timelines.
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$5,000+$50 - $99 / hr10 - 49Toronto, Canada
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See all 14 projectsOrthoplex Solutions is a full-stack web development company specializing in website design, development, and maintenance. The company consistently receives positive reviews, with 100% of clients praising their professionalism, responsiveness, and ability to deliver high-quality, efficient web solutions on time. Approximately 80% of the reviews highlight Orthoplex's expertise in creating user-friendly and SEO-optimized websites that enhance client engagement and conversions.
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$5,000+$50 - $99 / hr10 - 49Barcelona, Spain
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See all 35 projectsTeplin is a web development company specializing in custom website development, web design, and e-commerce solutions. They consistently receive high praise for their expertise in front-end and back-end development, with 100% of reviews noting their reliable delivery and strong communication. Clients appreciate their creativity and responsiveness, with significant improvements reported in conversion rates, user engagement, and website performance.
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$10,000+$50 - $99 / hr50 - 249London, England
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See all 22 projectsOld.St Labs is a versatile web development company specializing in custom website development, front-end development, and web application development. They have consistently received positive feedback for their professionalism, responsive communication, and ability to deliver projects on time and within budget. Approximately 100% of reviewers highlight their effective project management and collaborative approach, emphasizing their culture fit and client-focused service.
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$5,000+< $25 / hr250 - 999Hanoi, Vietnam
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See all 26 projectsAMELA Technology is a web development company specializing in custom web application development, front-end and back-end development, and web design services. With over 95% positive feedback, clients consistently praise their professional project management, technical proficiency, and the ability to deliver on time and within budget. AMELA is noted for its exceptional support, agile communication, and a strong focus on customer satisfaction.
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$10,000+$150 - $199 / hr50 - 249Chicago, IL
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See all 42 projectsLaunchPad Lab is a web development company that specializes in custom website development, full-stack web development, and web application development. The reviews highlight their exceptional project management, responsiveness, and ability to deliver projects on time. Their technical expertise, particularly in Ruby on Rails, is consistently praised, with 100% of reviewers noting their skilled team and effective communication.
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$25,000+$150 - $199 / hr10 - 49Providence, RI
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See all 17 projectsOomph, Inc. is a web development company specializing in Website Development, Web Design, and Custom Website Development, often using Drupal as their platform of choice. The reviews highlight their strong communication skills, timeliness, and ability to deliver high-quality, reliable solutions. Over 80% of reviewers appreciated their project management capabilities and timely delivery, while 70% commended their commitment to partnership and problem-solving. Some feedback suggested room for improvement in providing initial root cause analysis more promptly.
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$10,000+$50 - $99 / hr250 - 999Kharkiv, Ukraine
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See all 23 projectsZfort Group is a web development company specializing in custom website development, web application development, and full-stack web development. Across multiple reviews, 100% of clients report positive experiences, noting their professionalism, effective project management, and strong communication skills. Clients consistently highlight their reliability, expertise, and commitment to delivering high-quality solutions that exceed expectations, with no significant areas of improvement mentioned.
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$5,000+< $25 / hr50 - 249Dallas, TX
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See all 143 projectsEmizen Tech is a web development company specializing in full-stack web development and custom website development, known for its ability to deliver pixel-perfect results and maintain open communication. With 90% of reviews highlighting their exemplary project management and responsiveness, Emizen Tech consistently meets deadlines and aligns well with client values, although one review mentioned delays and incomplete delivery.
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$5,000+$100 - $149 / hr10 - 49Encinitas, CA
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See all 30 projectsCollective42 is a prominent web development firm known for its expertise in custom website development, web design, and full-stack web development. Clients consistently commend their professionalism, timely delivery, and communication skills, with 100% positive feedback regarding their project management and ability to align with client needs and values. Approximately 70% of reviews highlight their exceptional communication and responsive service.
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$10,000+$50 - $99 / hr10 - 49Bogotá, Colombia
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See all 18 projectsContra Studio is a web development company specializing in custom website development and web design. With a 100% positive feedback rate across various projects, clients consistently praise their punctuality, proactive project management, and ability to deliver high-quality, user-friendly websites. Approximately 90% of reviewers highlight Contra Studio's cultural fit and alignment with company values as key factors in their selection.
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$10,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 47 projectsTechstack company is a multifaceted development firm specializing in Web Development, including Full-Stack Web Development and Web Application Development. The company consistently receives high praise for its technical expertise, project management, and commitment to client success, with approximately 100% of reviews highlighting their ability to deliver scalable, reliable solutions on time and within budget. Clients commend their technical skill, responsiveness, and ownership, making them a trusted partner across various industries.
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$25,000+Undisclosed10 - 49Seattle, WA
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See all 15 projectsCulture Foundry is a proficient web development company known for its comprehensive website design and development services, including custom website development and web application development. Across multiple reviews, 100% of clients praised their project management skills and timely delivery. Additionally, 90% of reviews highlighted their commitment to understanding and meeting client needs, emphasizing their responsiveness and proactive communication approach.
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$10,000+< $25 / hr250 - 999Karur, India
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See all 21 projectsMallow Technologies Private Limited is a web development company specializing in services such as custom website development, front-end development, and web application development. The company consistently receives high praise for its technical expertise, responsiveness, and timely delivery of projects, with over 80% of reviews highlighting their proactive communication and strategic partnership. Clients commend their adaptability and reliability, making them a trusted partner in various projects.
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$1,000+$50 - $99 / hr10 - 49Budapest, Hungary
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See all 45 projectsIntegral Vision Ltd. is a web development company specializing in custom website development, with a strong focus on Drupal-based solutions. Their services consistently meet diverse needs, from bilingual websites to complex map applications. Feedback is overwhelmingly positive, with 100% of reviewers highlighting their strategic collaboration, technical expertise, and effective project management. They are also praised for their ability to deliver on time and within budget, ensuring client satisfaction.
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$25,000+$25 - $49 / hr50 - 249T'bilisi, Georgia
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See all 39 projectsRedberry: Premier Tier Laravel and Vue partner excels in Full-Stack Web Development and Web Application Development, earning outstanding feedback for their proficiency in Website Development and Web Programming. Highlighted in 90% of reviews for their effective project management, responsiveness, and innovation, Redberry is praised for delivering on time while adeptly bridging technical and creative needs.
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$1,000+$25 - $49 / hr50 - 249Klemzig, Australia
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See all 18 projectsIncipient Infotech is a versatile web development company specializing in custom website development, front-end development, and full-stack web development. With positive feedback from 100% of reviewers, clients praise their timely delivery, excellent communication, and high-quality code. Approximately 62% of reviewers highlight their exceptional project management and responsiveness, underscoring their commitment to exceeding client expectations and delivering innovative technology solutions.
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$50,000+$100 - $149 / hr50 - 249Kraków, Poland
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See all 17 projectsRailsware is a Full-Stack Web Development company renowned for its expertise in Web Application Development, especially using Ruby on Rails, React, and JavaScript. Across various reviews, 90% of clients highlight their exceptional project management and communication skills, while 80% commend their ability to integrate seamlessly with internal teams. Overall feedback indicates high satisfaction with their custom web solutions and professional execution.
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$50,000+$150 - $199 / hr10 - 49Chicago, IL
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See all 45 projectsRed Foundry is a comprehensive custom website and web application development company noted for its expertise in full-stack web development and front-end development. With a 100% positive feedback rate, clients praise their project management skills, timely delivery, and collaborative culture. Around 80% of reviewers highlight their ability to align with client needs and offer innovative solutions, ensuring optimal client satisfaction and project success.
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$25,000+$50 - $99 / hr10 - 49Atlanta, GA
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See all 56 projectsDedicated Developers is a versatile web development company specializing in Custom Website Development, Web Application Development, and Full-Stack Web Development. Their reviews reflect a 100% positive feedback rate, with clients praising their technical expertise, responsive communication, and genuine partnership approach. Approximately 80% of reviewers highlighted their ability to meet deadlines and provide strategic insights, positioning them as a reliable and innovative development partner.
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$5,000+$50 - $99 / hr10 - 49Sofia, Bulgaria
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See all 24 projectsCreative Corner Studio is a web development company specializing in custom website development, web design, and user experience optimization. The reviews demonstrate a remarkable 100% satisfaction rate, with clients consistently highlighting their professionalism, timely delivery, and exceptional technical expertise. Approximately 60% of reviewers praise their ability to enhance user engagement and conversion rates through intuitive design and seamless functionality.
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$75,000+$150 - $199 / hr50 - 249Lansing, MI
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See all 5 projectsModern Tribe is a full-stack web development company specializing in custom website development and online development, particularly for educational institutions. Reviews highlight their expertise in WordPress, innovative design solutions, and responsive project management. Approximately 90% of reviewers commend their creative problem-solving and client-centric approach, while a few note areas for improvement in scope clarity. Overall, Modern Tribe consistently receives positive feedback for delivering high-quality, user-friendly websites.
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$10,000+$100 - $149 / hr10 - 49Kraków, Poland
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See all 26 projectsNopio is a web development company specializing in custom website development and full-stack web programming. They have received overwhelmingly positive feedback, with clients praising their attention to detail, responsiveness, and project management skills. Approximately 90% of reviewers highlight their impressive execution and communication, while several clients appreciate their ability to stay within budget and timeline constraints.
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$10,000+$25 - $49 / hr50 - 249Dubai, United Arab Emirates
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See all 49 projectsLumitech is a full-stack web development company highly regarded for its comprehensive services in web programming and application development. Reviewers consistently highlight their exceptional communication, responsiveness, and ability to integrate seamlessly with clients' teams, with over 90% expressing satisfaction. Many clients, about 80%, praise their project management and timely delivery, while others appreciate their strategic approach and commitment to quality.
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$5,000+$50 - $99 / hr50 - 249Austin, TX
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See all 22 projectsRubico is a web development company specializing in custom website development, front-end and back-end development, and web application development. The reviews highlight their excellent project management, responsiveness, and commitment to quality, with 100% of reviewers noting timely delivery and satisfaction with their outcomes. Additionally, 83% of clients emphasize Rubico's alignment with company values and budget-friendly pricing.
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$10,000+$100 - $149 / hr10 - 49Guildford, England
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See all 9 projectsLightflows is a full-service web development company specializing in website development, web design, and online development. They consistently receive positive feedback, with 100% of reviews highlighting their professionalism, clear communication, and expertise in SEO and web programming. Clients frequently mention their ability to deliver on time and within budget, resulting in enhanced user engagement and increased business growth.
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$10,000+$50 - $99 / hr50 - 249New Delhi, India
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See all 14 projectsQED42 is a versatile web development company specializing in full-stack web development, custom website development, and web application development using Drupal, among other technologies. Reviewers consistently highlight QED42's professionalism, responsiveness, and ability to deliver high-quality solutions on time, with over 90% positive feedback. Their structured approach and flexibility in client collaboration are noted by approximately 70% of reviewers. Improvements are suggested in enhancing agility and testing processes.
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$10,000+$150 - $199 / hr10 - 49New York, NY
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See all 34 projectsCantilever Web Design & Development is a full-stack web development company praised for creating robust, user-friendly websites and conducting strategic consulting. With 100% positive feedback from reviewers, key themes include their consultative approach and commitment to project management. Notably, 80% of reviewers highlight their strong communication skills, while 70% mention their alignment with client values and goals, ensuring tailored and effective web solutions.
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$10,000+$25 - $49 / hr50 - 249Wrocław, Poland
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See all 55 projectsMonterail is a distinguished web development company offering a comprehensive range of services, including custom website development, full-stack web development, and web application development. With overwhelmingly positive reviews, clients commend their proactive project management, ability to align with client needs, and exceptional communication skills. Approximately 95% of reviewers highlight the company's technical expertise and commitment to delivering tailored solutions.
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$10,000+$50 - $99 / hr10 - 49Kraków, Poland
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See all 14 projectsSmultron Web Development is a versatile web development company specializing in custom website development and full-stack web development, with services ranging from web application development to front-end and back-end development. Positive feedback comprises over 90% of reviews, highlighting their professionalism, flexibility, and efficient project management. Approximately 70% of reviewers commend their timely delivery and attention to detail.
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$1,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 25 projectsDRUM'N'CODE is a full-stack web development company specializing in custom website development, web application development, and technical support. Their reviews are overwhelmingly positive, with approximately 90% highlighting their technical expertise, timely delivery, and proactive communication. Clients frequently praise their ability to handle complex legacy systems, improve performance, and maintain a collaborative approach, ensuring project success and client satisfaction.
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$10,000+$100 - $149 / hr50 - 249Alexandria, VA
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See all 35 projectsNew Target, Inc. - The Digital Agency is a full-service web development and digital strategy firm excelling in custom website development, web design, and online development. With a 100% rate of positive feedback across reviews, clients frequently praise their project management, responsiveness, and creative solutions. The agency’s expertise in integrating systems and enhancing user experience has consistently resulted in increased site engagement and operational efficiency.
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$5,000+$100 - $149 / hr10 - 49Vancouver, Canada
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See all 12 projectsNirvana Canada is a web development company specializing in Website Development, Web Design, and Full-Stack Web Development. Across various reviews, 100% of clients praised their professionalism, attention to detail, and ability to deliver projects on time and within budget. Clients frequently commend Nirvana Canada for their SEO expertise, with over 50% noting significant increases in web traffic and conversion rates.
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$10,000+$25 - $49 / hr50 - 249Vilnius, Lithuania
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See all 5 projectsRichBrains is a web development company specializing in front-end development and web design. Their services have been consistently praised, with 100% of reviewers highlighting their ability to deliver projects on time and within budget. RichBrains is particularly noted for their effective communication and adaptability to project needs.
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$10,000+< $25 / hr50 - 249New Delhi, India
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See all 64 projectsTechnoYuga Soft Pvt. Ltd. is a full-stack web development company offering comprehensive services including mobile app and web application development. Reviews reveal consistent themes of timely delivery, strong project management, and proactive communication. Impressively, 100% of reviewers highlight their adaptability and client-centric approach, while the majority praise their value for cost and technical expertise.
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$10,000+$50 - $99 / hr10 - 49București, Romania
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See all 29 projectsUPDIVISION is a full-stack web development company offering services like custom website development, UI/UX design, and web application development. Reviews indicate a strong emphasis on quality, timely delivery, and seamless communication, with 100% of reviewers highlighting their effective project management and technical expertise. The company is praised for its ability to tackle complex projects and deliver innovative solutions, with an impressive 90% of clients noting their commitment to integrating business insights into technical solutions.
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$50,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 29 projectsThirstySprout is a Full-Stack Web Development company renowned for its rapid starter turnaround and exceptional developer quality. They specialize in transforming designs into functional interfaces and developing comprehensive backend solutions. Reviews highlight a high satisfaction rate, with 100% of clients praising their communication, adaptability, and the speed at which they assembled skilled teams.
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$25,000+$50 - $99 / hr10 - 49Schaumburg, IL
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See all 31 projectsHyperSense Software Inc is a versatile web development company specializing in full-stack web development, UI/UX design, and custom website development across various industries, including healthcare and education. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their project management and responsiveness, while 70% highlight their strategic approach in product development. Their commitment to client success and adaptability in addressing evolving project needs is consistently noted.
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$75,000+$150 - $199 / hr250 - 999New York, NY
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See all 37 projectsFueled is a web development company offering comprehensive services in Website Development, Web Design, and Full-Stack Web Development. The overall feedback across their reviews is highly positive, with approximately 90% of clients praising their project management skills, innovative solutions, and attention to detail. Many clients admire Fueled's ability to deliver complex projects on time and within budget while maintaining excellent communication and proactive problem-solving.
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$75,000+$150 - $199 / hr250 - 999Chicago, IL
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See all 21 projectsCodal is a full-stack web development company with expertise in custom website development, web application development, and web design. Across reviews, clients highlighted their project management efficiency, technical expertise, and responsiveness, with 90% appreciating their ability to deliver complex projects on time and within scope. Many valued Codal's ability to seamlessly integrate various APIs and platforms, making them a trusted partner in enhancing user experience and scalability.
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$25,000+$25 - $49 / hr50 - 249Santa Monica, CA
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See all 35 projectsIT-Dimension Inc. is a web development company offering full-stack web development, custom website development, and web application development services. The overall feedback is overwhelmingly positive, with 100% of reviewers highlighting their technical expertise, project management skills, and commitment to client satisfaction. Approximately 70% of the reviews note their adaptability and alignment with client values as standout qualities.
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$5,000+$25 - $49 / hr10 - 49Surat, India
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See all 4 projectsDeclone Labs PVT LTD is a versatile web development company specializing in custom website development, full-stack web development, and AI integration. With 100% positive feedback, clients praise their project management, timely delivery, and effective communication. Notably, 75% of reviews highlight their strong alignment with client needs and proactive support in technical solutions.
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$10,000+$100 - $149 / hr10 - 49San Diego, CA
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See all 13 projectsLightspace is a comprehensive web development company specializing in custom website development, web design, and web application development. The company consistently receives positive feedback, with 100% of reviewers expressing satisfaction with their work. Key themes include their impressive project management and design skills, responsiveness, and ability to deliver projects on time and within budget.
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Undisclosed$150 - $199 / hr10 - 49Northampton, MA
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See all 18 projectsLast Call Media is a web development company specializing in full-stack development, website redesign, and maintenance, with expertise in Drupal infrastructure and custom website development. Client reviews highlight their ability to increase website traffic, improve usability, and provide responsive communication with 90% of feedback being positive. Clients appreciate their technical expertise, proactive support, and collaborative approach, although some note challenges with project management consistency.
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$25,000+$50 - $99 / hr10 - 49Zagreb, Croatia
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See all 22 projectsHuman Interaction Company is a versatile web development firm offering services such as website development, web design, and web application development. The company receives overwhelmingly positive feedback, with clients praising their dedication, innovative solutions, and ability to deliver projects with high quality and precision. Approximately 90% of reviewers highlight their strong project management and communication skills, emphasizing their expertise in handling complex web programming tasks efficiently.
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$10,000+$50 - $99 / hr50 - 249
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See all 31 projectsInteractivated Solutions is a comprehensive web development company skilled in full-stack web development, custom website development, and web application development. They have received overwhelmingly positive feedback, with clients praising their high technical skill, strategic insight, and responsiveness. Nearly all reviews highlight their ability to deliver projects on time and to specification, with 100% of reviewers noting their impressive project management and communication.
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$25,000+$50 - $99 / hr50 - 249Buenos Aires, Argentina
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See all 20 projects10Pines is a software development company specializing in Web Application Development, offering services such as full-stack development and custom website solutions. Across numerous reviews, 10Pines is praised for its excellent project management, high-quality deliverables, and effective communication, with nearly 100% of reviewers highlighting their collaborative culture and responsiveness. Clients appreciate their ability to seamlessly integrate with internal teams and adapt to changing project requirements.
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$10,000+$50 - $99 / hr10 - 49Batroun, Lebanon
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See all 81 projectsCOMPU-VISION S.A.R.L. is a versatile web development company specializing in Website Development, Web Application Development, and custom digital solutions. Reviews indicate a 100% positive feedback rate, highlighting their technical expertise, project management skills, and strong client collaboration. Approximately 70% of reviewers praise their problem-solving capabilities and responsiveness, often exceeding project expectations through efficient and creative solutions.
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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
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
35.9/40.019/20 Reviews10/10 Clients & Experience6.9/10 Market PresenceService focus
60% Web Development50% JavaScript40% Other -
$10,000+$25 - $49 / hr250 - 999Bengaluru, India
Ability to deliver
37.2/40.020/20 Reviews10/10 Clients & Experience7.2/10 Market PresenceService focus
20% Web Development40% JavaScript80% Other -
$5,000+$50 - $99 / hr50 - 249Maribor, Slovenia
Ability to deliver
35.1/40.020/20 Reviews10/10 Clients & Experience5.1/10 Market PresenceService focus
40% Web Development100% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
34.1/40.018.4/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
34.5/40.018.8/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
35.9/40.018.8/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$1,000+< $25 / hr250 - 999Walpole, MA
Ability to deliver
32.8/40.016.2/20 Reviews10/10 Clients & Experience6.6/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$10,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
34.8/40.018.6/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
50% Web Development90% JavaScript50% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
35.6/40.020/20 Reviews10/10 Clients & Experience5.6/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
37/40.019.6/20 Reviews10/10 Clients & Experience7.4/10 Market PresenceService focus
45% Web Development10% JavaScript55% Other -
$5,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
32.3/40.017.2/20 Reviews10/10 Clients & Experience5.1/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
35.6/40.019.6/20 Reviews10/10 Clients & Experience6/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
Ability to deliver
34.9/40.019.8/20 Reviews10/10 Clients & Experience5.1/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
33.6/40.016.8/20 Reviews10/10 Clients & Experience6.8/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
35.5/40.018.8/20 Reviews10/10 Clients & Experience6.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
36.2/40.020/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
30% Web Development15% JavaScript70% Other -
$10,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
32.6/40.018.8/20 Reviews8.3/10 Clients & Experience5.5/10 Market PresenceService focus
55% Web Development45% JavaScript45% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
36.3/40.017.6/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
15% Web Development18% JavaScript85% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
33.8/40.018.6/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
33.1/40.017.8/20 Reviews10/10 Clients & Experience5.3/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
35.7/40.020/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$25,000+$50 - $99 / hr10 - 49Poznań, Poland
Ability to deliver
33.8/40.017/20 Reviews10/10 Clients & Experience6.8/10 Market PresenceService focus
50% Web Development60% JavaScript50% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
31.9/40.016.4/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
31.9/40.016.2/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
31.9/40.015.8/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
33.9/40.017.2/20 Reviews9.9/10 Clients & Experience6.8/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$10,000+$25 - $49 / hr50 - 249Kraków, Poland
Ability to deliver
33.8/40.018.8/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
30% Web Development50% JavaScript70% Other -
$5,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
37.4/40.020/20 Reviews10/10 Clients & Experience7.4/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$25,000+$100 - $149 / hr50 - 249Santa Clara, CA
Ability to deliver
35.1/40.017.8/20 Reviews10/10 Clients & Experience7.3/10 Market PresenceService focus
60% Web Development20% JavaScript40% 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.