Top JavaScript Developers
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 85 projectsElsner Technologies Pvt Ltd is a Web Development company offering services in Website Development, Web Programming, and other online development tasks. They are praised for their responsiveness and technical expertise, with 75% of reviews highlighting their efficient project management and communication. However, 25% of reviewers noted challenges with follow-through and communication, suggesting room for improvement in customer engagement and accountability.
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$25,000+$25 - $49 / hr50 - 249New York, NY
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See all 65 projectsUnified Infotech is a full-service web development company specializing in Website Development, Web Design, and Custom Website Development. Across the reviews, 90% of clients praised their timely delivery and effective communication, with 80% highlighting their professional project management. While some noted minor communication challenges, the company consistently demonstrated adaptability and commitment to client satisfaction.
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$50,000+$100 - $149 / hr10,000+Charlottesville, VA
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See all 36 projectsTELUS Digital, a full-service web development company, excels in Web Application Development and Front-End Development. With 100% positive feedback, clients commend their timely delivery, technical expertise, and collaborative project management. Reviewers highlight their ability to meet complex project objectives and successfully launch digital products with robust design and product management strategies.
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$10,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 47 projectsTechstack company is a full-stack web development firm renowned for its technical expertise and comprehensive services including web and mobile development, DevOps, and quality assurance. Their reviews highlight a consistent 100% positive feedback rate, with clients praising their project management, commitment to quality, and ability to deliver scalable, reliable solutions. Techstack's adaptability and alignment with client needs make them a preferred technology partner.
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$75,000+$150 - $199 / hr250 - 999New York, NY
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See all 38 projectsFueled is a full-stack web development company renowned for its expertise in custom website development, web application development, and online development. They consistently receive high praise for their on-time and on-budget delivery, with approximately 90% of reviewers highlighting their exceptional communication and project management skills. Clients appreciate Fueled's dedication to meeting their needs through innovative solutions and detailed attention.
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$25,000+$150 - $199 / hr10 - 49Kelowna, Canada
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See all 15 projectsTwirling Umbrellas is a full-service web development company specializing in custom website development, web design, and digital marketing services. Across their reviews, clients highlight their exceptional communication and project management skills, with 100% of feedback being positive regarding their professionalism and ability to meet deadlines. Furthermore, 40% of reviewers commend their user-focused web design and development expertise, which significantly enhances user experience and engagement.
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$5,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 18 projectsMobile Reality is a full-stack web development company specializing in custom website development, web application development, and both front-end and back-end development. Across their reviews, clients consistently praise their efficient project management, strong communication, and ability to deliver projects on time and within budget. Approximately 90% of reviews highlight Mobile Reality's proactive approach and technical expertise in transforming client visions into robust digital solutions.
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$10,000+$25 - $49 / hr50 - 249Vilnius, Lithuania
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See all 6 projectsRichBrains is a web development company specializing in website development, web design, and front-end development services. Across their reviews, clients highlight their professional project management, timely delivery, and effective communication. Approximately 100% of reviewers praised their ability to translate business needs into professional and clear online solutions, while some noted a desire for more marketing strategy guidance.
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$10,000+$25 - $49 / hr250 - 999Kolkata, India
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See all 237 projectsCapital Numbers is a web development company with extensive expertise in Website Development, Web Design, and Full-Stack Web Development services. Their reviews reflect a high level of professionalism and customer satisfaction, with approximately 90% of feedback being positive. Clients frequently commend their reliable communication, timely project delivery, and technical precision, with over 70% highlighting their impressive project management and commitment to client needs.
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$5,000+< $25 / hr50 - 249Dallas, TX
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See all 149 projectsEmizen Tech is a versatile web development company specializing in full-stack web development, web design, and custom website development. Over 90% of reviews highlight their responsiveness, professionalism, and commitment to delivering projects on time. Clients praise their exceptional communication skills and ability to transform complex requirements into practical solutions, with many expressing satisfaction with the quality of work and ongoing support.
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$25,000+$25 - $49 / hr250 - 999Houston, TX
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See all 83 projectsTekRevol is a versatile web development company known for delivering high-quality custom website development and web application development services. Clients consistently commend their professionalism, organization, and customer service, with over 90% of reviews highlighting their impressive project management and responsiveness. Collaboration and attention to detail are recurring themes, with many appreciating TekRevol's ability to translate visions into effective digital solutions.
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$50,000+$50 - $99 / hr1,000 - 9,999Minneapolis, MN
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See all 30 projectsCoherent Solutions is a full-stack web development company that provides comprehensive web application development, web design, and custom website development services. Reviews reveal a high level of client satisfaction, with consistent praise for their timely delivery and problem-solving abilities. Approximately 100% of reviewers highlight their effective project management and diverse expertise, making them a reliable partner for complex projects.
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$1,000+$25 - $49 / hr50 - 249Thorold, Canada
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See all 47 projectsComputan is a versatile web development company specializing in custom website development, web design, and HubSpot-centric solutions. The majority of reviews, approximately 90%, highlight their technical expertise, particularly in full-stack web development and integration, as well as their strong project management skills. Clients appreciate Computan's timeliness, responsiveness, and ability to tailor solutions to meet specific project needs, showcasing a customer-focused approach.
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$25,000+$25 - $49 / hr50 - 249Kraków, Poland
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See all 33 projectsDBB Software, a full-stack web development company, consistently receives high praise for its expertise in Web Application Development and Custom Website Development. With a 100% rate of on-time project delivery and accolades for exceptional problem-solving abilities, 86% of reviewers highlight their strong project management and responsive communication. Some suggest minor improvements in language skills, yet commend their dedication and innovative approach.
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$50,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 41 projectsThirstySprout is a web development company specializing in custom website development, front-end development, and back-end development. The reviews highlight their rapid project initiation, high-quality developers, and excellent communication, with 100% positive feedback praising their ability to quickly scale teams and deliver projects on time within budget constraints.
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$25,000+$50 - $99 / hr250 - 999Kraków, Poland
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See all 54 projectsTechMagic is a versatile web development company offering services in Website Development, Web Application Development, Front-End Development, and Back-End Development. With a high level of competence and responsiveness, 90% of the feedback highlights their effective project management and timely delivery. Approximately 80% of reviewers commend their proactive communication and adaptability to client needs. However, some minor suggestions for improvement include faster recruitment and enhancing the design phase timeline.
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$10,000+$25 - $49 / hr50 - 249Santo Tomé, Argentina
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See all 21 projectsSerfe is a full-stack web development company that specializes in custom website development and web application development. Across multiple reviews, clients commend Serfe for their expertise in front-end and back-end development, communication skills, and reliability. They consistently deliver projects on time and within budget, with approximately 90% of reviewers highlighting their technical proficiency and effective project management.
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$10,000+$25 - $49 / hr50 - 249Wrocław, Poland
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See all 61 projectsMonterail is a proficient web development company specializing in full-stack web development, front-end and back-end development, and custom website development. Across reviews, 80% of clients highlight their exceptional project management, adaptability, and communication skills. Clients appreciate Monterail's technical expertise and commitment to client needs, resulting in successful project outcomes and a high level of satisfaction.
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$10,000+$50 - $99 / hr2 - 9Warszawa, Poland
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See all 11 projectsWideFix is a web development company excelling in Web Programming and Custom Website Development, with a notable emphasis on Ruby on Rails. Reviews highlight their execution-oriented, technically proficient approach, with 100% of feedback being positive. Clients praise their efficiency, reliability, and technical expertise, particularly in meeting deadlines and delivering high-quality solutions for complex projects.
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$10,000+$50 - $99 / hr250 - 999Wrocław, Poland
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See all 33 projectsScalo is a web development company offering services such as full-stack web development and web application development. Reviews highlight their expertise in PHP and Python development, with 75% of feedback being positive. Clients appreciate Scalo’s skilled resources, timely delivery, and good value for cost, though some mention room for improvement in equipment and code quality.
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$50,000+$150 - $199 / hr50 - 249Frisco, TX
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See all 19 projectsFive Pack is a web development company specializing in custom website development and web application development. They consistently receive positive feedback for their effective project management and responsiveness, with over 90% of reviewers noting their ability to exceed expectations and deliver high-quality solutions. Their proactive communication and capability to understand and anticipate client needs are frequently highlighted by clients.
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$1,000+$100 - $149 / hr10 - 49Toronto, Canada
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See all 39 projectsThrillX is a proficient web development company specializing in custom website development, web design, and online development services. Across their reviews, ThrillX consistently receives positive feedback, with approximately 100% of reviewers highlighting their effective communication, responsiveness, and ability to meet project deadlines. A notable 90% of clients appreciate their client-focused approach and project management capabilities.
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$50,000+$25 - $49 / hr250 - 999Warszawa, Poland
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See all 115 projectsGLOBALDEV is a full-stack web development company praised for their expertise in web application development and strong project management. The reviews indicate a high level of client satisfaction, with a focus on effective communication and quality work. Approximately 90% of feedback highlights their excellent communication and project ownership, although some clients noted room for improvement in feature tracking.
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$25,000+$25 - $49 / hr50 - 249Warszawa, Poland
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See all 70 projectsEvaCodes is a full-stack web development company specializing in web application development, custom website development, and blockchain integration. They received overwhelmingly positive feedback, with approximately 90% of reviewers praising their technical expertise, particularly in API integration and smart contract development. Clients consistently highlight EvaCodes' exceptional project management skills, timely delivery, and proactive communication, emphasizing their ability to understand business needs and offer valuable technical solutions.
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$25,000+$50 - $99 / hr10 - 49Brooklyn, NY
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See all 51 projectsJetRockets is a full-stack web development company known for delivering custom web and mobile solutions. Reviews highlight their excellent project management, proactive communication, and ability to meet deadlines, with 90% of clients noting their responsiveness and quality of work. Clients appreciate their value for cost and alignment with company values, with 85% praising their adaptability and strategic input.
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$10,000+$25 - $49 / hr10 - 49Sofia, Bulgaria
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See all 33 projectsLexis Solutions is a versatile web development company specializing in full-stack development, custom software solutions, and web application development. They consistently receive high praise for their strong project management skills, with a focus on timely delivery and effective communication. Approximately 100% of reviews highlight their professionalism and alignment with client values, showcasing their ability to adapt and integrate seamlessly with diverse client needs.
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$10,000+$50 - $99 / hr10 - 49Bogotá, Colombia
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See all 20 projectsContra Studio is a web development company specializing in custom website creation and full-stack web development. Their reviews indicate a strong emphasis on reliable project management and high-quality UX/UI design, with 100% of clients noting timely delivery and effective communication. Clients appreciated their cultural fit, creativity, and technical versatility, with no significant areas for improvement highlighted across reviews.
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$25,000+$150 - $199 / hr10 - 49Providence, RI
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See all 18 projectsOomph, Inc. is a web development company specializing in Website Development and Custom Website Development with a focus on Drupal platforms. Client reviews highlight the firm’s strong project management skills and timely delivery of services. Approximately 100% of reviewers commend their effective communication and problem-solving abilities, though some suggest increased resources for back-end development. Overall, Oomph, Inc. is praised for its collaborative approach and commitment to client success.
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$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
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See all 53 projectsArtkai is a full-stack web development company specializing in custom website development and web application development. Across numerous reviews, clients consistently praise Artkai for their exceptional communication, project management, and ability to deliver high-quality work on time. Approximately 85% of reviewers highlight the company's strong cultural fit and alignment with client values. Their expertise in UX/UI design and development is frequently commended, with 90% of clients expressing satisfaction with their innovative and design-centric approach.
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$25,000+$100 - $149 / hr50 - 249Plano, TX
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See all 86 projectsAgency Partner Interactive LLC is a full-service web development company specializing in custom website development and web application development. Feedback from clients is overwhelmingly positive, with over 90% of reviewers highlighting effective communication, timely deliveries, and professional project management. Notably, around 80% appreciate their flexibility and commitment to customer satisfaction.
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$25,000+$150 - $199 / hr10 - 49Cohoes, NY
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See all 17 projectsTroy Web Consulting is a distinguished web development company known for its expertise in Website Development, Web Application Development, and Full-Stack Web Development. With consistent high praise, 100% of reviewers highlight their responsiveness, professionalism, and ability to deliver on time, often exceeding client expectations. Clients commend Troy Web Consulting for their personalized service and innovative solutions, with 90% noting their deep understanding and seamless integration with client teams.
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$50,000+$100 - $149 / hr50 - 249Newport Beach, CA
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See all 106 projectsSaritasa is a full-service web development company offering custom web development, web application development, and full-stack web development. The company consistently receives positive feedback for its project management, technical expertise, and attentiveness, with 100% of reviewers noting their professionalism and timely delivery. Clients frequently praise their ability to meet tailored needs and appreciate their proactive communication and partnership approach, with no significant areas for improvement cited.
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$5,000+$50 - $99 / hr50 - 249Austin, TX
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See all 24 projectsRubico is a proficient web development company specializing in custom website development, web application, and full-stack web development services. With a strong emphasis on client satisfaction, 100% of reviewers praised their timely delivery, professionalism, and high-quality work. A notable 80% of reviews highlighted their effective communication and project management skills, while several noted their excellent value for cost and alignment with company values.
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$10,000+< $25 / hr50 - 249New Delhi, India
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See all 64 projectsTechnoYuga is a versatile web development company specializing in comprehensive solutions including web and mobile app development, full-stack and backend development, and custom web programming. With a 100% positive feedback rate, clients consistently praise their timely delivery, excellent project management, and proactive communication. Reviewers frequently note their ability to adapt and offer strategic suggestions, highlighting their commitment to client success.
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$1,000+$50 - $99 / hr50 - 249Los Angeles, CA
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See all 164 projectsCoalition Technologies is a comprehensive web development company specializing in custom website development, web design, and SEO services. The company is praised for its exceptional customer service, timely project delivery, and effective communication, with 90% of reviewers highlighting these aspects positively. However, one notable criticism pointed to a lack of value in their SEO services and website design, accounting for 10% of the feedback.
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$10,000+$150 - $199 / hr10 - 49Reston, VA
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See all 16 projects321 Web Marketing is a dynamic web development and digital marketing company specializing in SEO optimization, website redesign, and online visibility enhancement. Overall, 95% of reviews highlight their expertise in SEO strategy and web development, with clients praising their project management and ability to deliver results on time. The company excels in custom website development and SEO campaigns, with nearly all clients noting significant improvements in lead generation and online presence.
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$10,000+$25 - $49 / hr250 - 999Stuttgart, Germany
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See all 36 projectsInstinctools is a versatile web development company specializing in custom website development, web application development, and full-stack web development. Their reviews consistently highlight outstanding project management, transparent communication, and on-time delivery. Impressively, 100% of reviewers noted their effective communication and dedication to client success, with no significant areas for improvement identified.
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$25,000+$50 - $99 / hr10 - 49Schaumburg, IL
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See all 31 projectsHyperSense Software is a web development company specializing in custom web and application development, UI/UX design, and full-stack web development services. Their reviews indicate a high level of client satisfaction, with approximately 85% of the feedback highlighting their strong communication, timely project delivery, and expertise in tailoring solutions to meet client needs. Notably, 60% of reviewers commend their collaborative approach and adaptability.
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$1,000+$50 - $99 / hr10 - 49Philadelphia, PA
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See all 112 projectsChopDawg.com is a web development company specializing in custom website development, web application development, and full-stack web development services. Their reviews reveal a strong emphasis on effective communication, adaptability, and a collaborative approach, with 100% of reviewers praising their professionalism and technical expertise. Clients appreciate their ability to deliver high-quality results within budget, although some note room for improvement in project timelines.
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$10,000+$50 - $99 / hr50 - 249Denver, CO
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See all 96 projectsJPLoft is a web development company specializing in Website Development, Custom Website Development, and Full-Stack Web Development. The reviews highlight their commitment to delivering projects on time, with 100% of clients noting their effective communication and timely delivery. Their ability to adapt to client needs and provide personalized service is consistently praised, making them a reliable partner for Online Development projects.
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$10,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 60 projectsElifTech is a versatile web development company that excels in custom website development, web application development, and full-stack web development. The reviews reveal a 100% satisfaction rate regarding their communication, value for cost, and problem-solving attitude. However, some areas for improvement include initial scoping and timeline accuracy. Overall, ElifTech demonstrates strong commitment and adaptability in delivering tailored and innovative solutions to meet varied client needs.
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$5,000+$25 - $49 / hr50 - 249Los Angeles, CA
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See all 48 projectsSoftermii is a versatile web development company specializing in full-stack web development, web application development, and custom website development across various industries, including fintech, healthcare, and telecommunications. The reviews highlight their strong project management, responsiveness, and ability to deliver complex solutions, with 100% of reviewers praising their communication and problem-solving skills. Additionally, 100% of projects reportedly achieved their goals, demonstrating Softermii's commitment to quality and effective delivery.
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$10,000+$25 - $49 / hr250 - 999Stockholm, Sweden
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See all 37 projectsBeetroot AB is a versatile web development company specializing in full-stack web development, web application development, and front-end and back-end development. With a 100% positive feedback rate, clients consistently commend Beetroot AB for their reliable project management, timely delivery, excellent communication, and ability to adapt to diverse project requirements. Their work has significantly enhanced user growth, conversion rates, and platform functionalities for clients.
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$1,000+$25 - $49 / hr50 - 249Klemzig, Australia
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See all 18 projectsIncipient Infotech is a versatile company specializing in Web Development, offering services such as Front-End Development, Custom Website Development, and Web Programming. The company consistently receives high ratings for delivering projects on time, maintaining excellent communication, and providing great value for cost. With 100% of reviewers highlighting their professionalism and responsiveness, Incipient Infotech stands out for its innovative solutions and client-focused approach.
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$10,000+$100 - $149 / hr10 - 49London, England
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See all 70 projectsCreativeWeb is a Web Development company specializing in Website Development and Web Design services. The reviews are overwhelmingly positive, highlighting their timely project delivery, responsive communication, and ability to meet client needs effectively. With 100% of the reviewers impressed by their design quality and project management, CreativeWeb stands out for its professionalism and clear guidance throughout the process.
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$10,000+$25 - $49 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 94 projectsApptunix is a comprehensive web development company that excels in delivering custom website development, web application development, and full-stack web development services. The reviews highlight their strong technical expertise and collaborative approach, with approximately 90% of feedback being positive. Clients commend their commitment to quality and project management capabilities, often leading to improved user engagement and business growth. However, there is some feedback on enhancing communication during critical phases.
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$1,000+< $25 / hr250 - 999Kolkata, India
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See all 66 projectsDigital Aptech is a web development company specializing in custom website development, web application development, and full-stack web development services. With approximately 80% of reviews highlighting timely delivery and responsiveness, clients commend their adaptability and understanding of customer needs. However, 10% of feedback indicates concerns regarding project management and communication.
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$50,000+$100 - $149 / hr10 - 49New Orleans, LA
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See all 27 projectsLookFar Labs is a web development company specializing in custom website development, web application development, and full-stack web development. With consistently positive reviews, 100% of reviewers commend their professionalism, communication skills, and ability to deliver projects on time and within budget. Clients particularly appreciate their agile approach, technical expertise, and collaborative nature, ensuring a seamless experience throughout the project lifecycle.
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$5,000+$25 - $49 / hr50 - 249Tallinn, Estonia
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See all 17 projectsFlawlessMLM | MLM Software is a company specializing in the development and customization of MLM platforms, showcasing expertise in MLM business logic and scalability. 100% of reviewers praise their strong communication, flexibility, and ability to deliver scalable, well-structured solutions on time, highlighting their value for cost and cultural alignment with clients.
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$25,000+$50 - $99 / hr50 - 249Poznań, Poland
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See all 97 projectsMerixstudio is a renowned web development company specializing in custom website development, web application development, and both front-end and back-end development. Overall, 100% of reviewers commend Merixstudio for their professional project management and excellent communication skills. Although some suggest improvements in capacity for urgent changes, the majority highlight their flexibility and ability to deliver timely and quality 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
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
38.9/40.019/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
60% Web Development50% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.3/40.018.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$5,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
37.5/40.018.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$10,000+$25 - $49 / hr250 - 999Bengaluru, India
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Web Development40% JavaScript80% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
38.9/40.019.4/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$25,000+$50 - $99 / hr50 - 249London, England
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development50% JavaScript70% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
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 -
$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 -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.9/40.019.4/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% 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 -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
38.8/40.018.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.8/40.017.8/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% 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 -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.3/40.018.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
45% Web Development10% JavaScript55% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.1/40.016.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$25,000+$50 - $99 / hr10 - 49Poznań, Poland
Ability to deliver
37.1/40.017.6/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development60% JavaScript50% 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 -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.8/40.019/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
40% Web Development70% JavaScript60% 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+$150 - $199 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Web Development20% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
36.7/40.017.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$5,000+$25 - $49 / hr50 - 249Hong Kong, Hong Kong
Ability to deliver
37.8/40.018.4/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
25% Web Development60% JavaScript75% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
37.1/40.017.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% 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.