Top JavaScript Developers
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 91 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development and engineering service provider specializing in full-stack web development and custom website development. The company consistently receives positive feedback, with approximately 95% of reviews highlighting their high-quality developers and management excellence. Clients frequently commend their project management skills and responsiveness, making them a reliable partner for complex web programming and online development projects.
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$25,000+$150 - $199 / hr10 - 49Palm Beach Gardens, FL
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See all 19 projectsIron Forge Development is a versatile web development company noted for its expertise in custom website development, web application development, and full-stack web development services. They received overwhelmingly positive feedback, with 100% of reviewers highlighting their responsiveness, project management, and ability to adapt to evolving project needs. Clients praised their innovative, customer-centric approach and strategic problem-solving capabilities, making them a reliable partner for complex online development projects.
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$10,000+$25 - $49 / hr50 - 249Beograd, Serbia
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See all 5 projectsBakson Ltd is a versatile technology solutions provider specializing in AI integration, ERP system migration, and data analytics services. The company consistently receives positive feedback for its technical expertise and transparent communication, with over 90% of reviewers highlighting their ability to deliver high-quality, scalable solutions on time. Many clients commend Bakson for effectively bridging the gap between technical and business needs, fostering a true partnership.
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$25,000+$50 - $99 / hr10 - 49București, Romania
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See all 36 projectsAtta Systems is a full-stack web development company renowned for its expertise in designing and developing custom web applications and platforms. Across their reviews, 100% of clients express satisfaction with their professionalism, project management, and ability to deliver high-quality solutions on time. Notable mentions include their proficiency in front-end and back-end development, with 80% of reviews highlighting their effective communication and ability to integrate seamlessly with clients' teams.
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$5,000+$25 - $49 / hr10 - 49Zirakpur, India
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See all 4 projectsCropsly Solutions Private Limited is a versatile web development company specializing in custom website development, web application development, and front-end and back-end development. Reviewers consistently praise their technical expertise, timely project delivery, and client-focused approach, with 100% positive feedback emphasizing their adaptability and commitment to client success. Clients appreciate Cropsly's innovative solutions and professional project management.
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$5,000+< $25 / hr50 - 249Claymont, DE
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See all 32 projectsUncanny Consulting Services LLP is a versatile web development company specializing in full-stack web and application development. With a 100% positive feedback rate, clients praise their strong project management skills, timely delivery, and exceptional technical knowledge. Nearly all reviews highlight their dedication to meeting deadlines and providing high-quality solutions, making them a reliable partner for digital and e-commerce projects.
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$5,000+$50 - $99 / hr10 - 49Gdańsk, Poland
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See all 27 projectsINNOKREA is a proficient web development company that excels in delivering custom website development and full-stack web development services. With 100% positive feedback, clients praise INNOKREA's technical expertise, attention to detail, and seamless project management. Notably, 75% of reviewers highlight their flexibility and commitment to aligning with client visions, making them a reliable partner for complex IT projects.
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$25,000+$25 - $49 / hr10 - 49Barranquilla, Colombia
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See all 9 projectsWawandco is a full-stack web development company specializing in custom website development, web application development, and UI/UX design. Reviews highlight their effective project management and strong communication, with 100% of reviewers mentioning punctual delivery and shared company values. The team is praised for their problem-solving abilities, collaborative spirit, and technical expertise.
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$10,000+$50 - $99 / hr10 - 49Ciudad de México, Mexico
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See all 20 projectsSISU Technologies is a web development company specializing in custom website development, full-stack web development, and web application development. Reviews reflect a 100% positive feedback rate, highlighting strengths in professionalism, responsiveness, and project management. Approximately 83% of reviewers commend their excellent communication and timely delivery, while some suggest improvement in initial cost and deadline estimations.
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$10,000+$50 - $99 / hr10 - 49Monterrey, Mexico
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See all 22 projectsAlluxi is a web development company specializing in full-stack web development, web application development, and custom website development. Their reviews consistently emphasize high-quality deliverables, strong project management, and effective communication, with 100% of reviewers praising their responsiveness and partnership approach. Most clients reported significant improvements in their operational efficiency and project outcomes, with no major areas for improvement noted.
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$50,000+$50 - $99 / hr50 - 249Miami, FL
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See all 45 projectsIntellectsoft is a comprehensive web development company specializing in custom web application development, web design, and both front-end and back-end development. The company consistently receives high praise for their professionalism, timely delivery, and effective communication, with 100% of reviewers expressing satisfaction with these aspects. Clients appreciate their ability to tailor solutions to specific needs and their expertise in full-stack web development.
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$25,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 26 projectsMWDN is a full-stack web development company that provides comprehensive services including web application development, front-end, and back-end development. The company is praised for its timely delivery, excellent project management, and adaptability, with 100% of reviews noting their effective communication and responsiveness. Clients appreciate MWDN's cultural fit, cost efficiency, and technical expertise, making them a preferred partner for outsourcing IT and software development needs.
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$250,000+$150 - $199 / hr10 - 49Littleton, CO
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See all 7 projectsBriebug is a web development company specializing in agile web application development and custom website development. They receive overwhelmingly positive feedback, with 100% of reviewers highlighting their organized approach and responsiveness. Reviewers commend their expertise in stabilizing systems and effective partnership, particularly in delivering stable online solutions and clearing thousands of bugs efficiently.
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$10,000+$100 - $149 / hr10 - 49San Francisco, CA
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See all 6 projectsNova Era Agency is a web development company specializing in custom website development, full-stack web development, and SEO services. With 100% positive feedback, their clients praise their excellent communication, timely project delivery, and deep understanding of business needs. The agency's creativity and technical expertise are highly commended, making them a preferred partner in enhancing online presence and functionality.
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$10,000+$50 - $99 / hr10 - 49Coventry , England
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See all 20 projectsImobisoft is a comprehensive web development company specializing in custom web and app platform solutions, including full-stack web development and web application development. Their reviews highlight a strong commitment to project timelines and budget adherence, with 83% of clients praising their technical expertise and problem-solving capabilities. While some clients noted slower communication, 100% expressed satisfaction with the quality of work delivered.
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$5,000+$50 - $99 / hr2 - 9Rishon LeZion, Israel
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See all 9 projectsZissu LTD is a web development company specializing in full-stack web and custom website development. The reviews highlight a 100% positive experience with commendations for their professionalism, responsiveness, and value for money. Clients noted improvements in conversion rates and website performance, with 75% praising their quick delivery and communication.
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$1,000+< $25 / hr50 - 249Jaipur, India
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See all 13 projectsAmbient Infotech is a web development company known for its expertise in custom website development and web application development. The company consistently receives positive feedback, with 90% user satisfaction for site design and 95% timely deliverables. Clients highlight its effective project management and ability to blend creative design with technical precision, although some suggest additional post-launch documentation.
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$5,000+$50 - $99 / hr10 - 49Knurów, Poland
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See all 12 projectsCoditive is a full-stack web development company specializing in custom website and web application development. They consistently receive positive feedback for their technical expertise, on-time delivery, and effective project management, with 100% of reviewers highlighting their professionalism and communication skills. Clients appreciate their problem-solving capabilities and flexibility in adapting to unique project needs.
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$5,000+$25 - $49 / hr50 - 249Noida, India
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See all 26 projectsQuokka Labs is a versatile web development company specializing in custom website development, full-stack web development, and web application development. The reviews highlight their commitment to quality, timely delivery, and responsive communication, with over 80% of clients appreciating their proactive project management and adaptability. Clients also commend their dedication to aligning company values and the involvement of leadership in ensuring customer satisfaction.
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$10,000+$25 - $49 / hr50 - 249Austin, TX
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See all 33 projectsZAPTA Technologies is a comprehensive web development company offering services such as website development, web design, and app development. With consistently high ratings, 100% of reviewers praised their innovative solutions, responsiveness, and ability to deliver projects on time and within budget. Notably, 75% of reviews emphasize their exceptional project management and proactive communication, solidifying their reputation as a reliable technology partner.
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$10,000+$50 - $99 / hr10 - 49Castelldefels, Spain
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See all 7 projectsUnimedia Technology is a proficient web development company specializing in custom website development and full-stack web projects. Feedback across reviews highlights their responsive project management and technical expertise, with 100% of clients impressed by their seamless integration and problem-solving capabilities. Clients consistently commend their ability to enhance user engagement and deliver rapid, high-quality web solutions.
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$25,000+$100 - $149 / hr10 - 49Cardiff, Wales
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See all 12 projectsIllustrate Digital is a web development company specializing in custom website development, web design, and full-stack web development, particularly using WordPress. Across the reviews, 100% of clients praise their expertise in creating SEO-friendly, user-friendly websites with improved conversion rates. Their project management is consistently described as collaborative, timely, and responsive, with 100% positive feedback emphasizing their customer-centric mindset and effective communication.
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$10,000+$100 - $149 / hr2 - 9Bratislava, Slovakia
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See all 15 projectsWebyst is a full-stack web development company recognized for its exceptional website design and development services, including web programming and custom website development. Garnering approximately 85% positive feedback, clients commend their proactive communication, timely delivery, and innovative solutions. Reviewers often highlight Webyst's ability to exceed expectations and align with company values.
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$5,000+$25 - $49 / hr50 - 249São Paulo, Brazil
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See all 8 projectsEspresso Labs is a web development company specializing in full-stack web development, custom website development, and web application development. With a 100% positive feedback rate, clients praise Espresso Labs for their technical expertise, reliability, and transparent communication. Across reviews, 80% of clients commend their project management skills and fixed-price approach, ensuring predictable budgets and timelines.
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$5,000+$50 - $99 / hr10 - 49Rīga, Latvia
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See all 11 projectsUNECOS SOLUTIONS is a versatile web development company specializing in custom website development, web design, and CRM solutions. Across various projects, they are praised for their responsive project management and client-centric approach, consistently delivering projects on time and within budget. With 100% positive feedback, clients commend their adaptability, attention to detail, and ability to meet specific business goals efficiently and professionally.
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$1,000+$100 - $149 / hr10 - 49Murray, UT
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See all 9 projectsSites by Sara is a proficient web development company specializing in website redesign, web programming, and online development. Reviews indicate exceptional customer satisfaction, with 100% positive feedback emphasizing their project management skills, attention to detail, and effective communication. Clients appreciate their ability to deliver customized solutions, with 30% of reviewers highlighting their creativity and responsiveness, ensuring projects are completed within budget and on time.
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$1,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 27 projectsLogicRays Technologies Pvt. Ltd. is a web development company specializing in custom website development, web application development, and full-stack web development, utilizing technologies such as Magento, Node.js, and Laravel. The company has received overwhelmingly positive feedback, with clients praising their effective project management, timely delivery, and ability to offer valuable suggestions, with over 90% of reviewers noting their efficient communication and high-quality work.
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$10,000+$25 - $49 / hr10 - 49San Francisco, CA
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See all 5 projectsCoding Crafts LLC is a dynamic web development company specializing in custom website development, full-stack web development, and web application development. With a consistent track record of delivering high-quality projects, 100% of reviewers commend their technical expertise, flexibility, and strong project management skills. Clients appreciate their seamless communication and dedication to meeting challenging project timelines.
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$5,000+< $25 / hr50 - 249Surat, India
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See all 28 projectsiRoid Solutions is a web development company excelling in full-stack web development and custom website development services. With a 100% customer satisfaction rate, clients praise their commitment to quality, efficiency, and adaptability to changes. Their expertise in front-end and back-end development, along with proactive communication, ensures high-quality deliverables that consistently meet or exceed expectations.
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$50,000+$150 - $199 / hr10 - 49Phoenix, AZ
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See all 17 projectsBlacksmith Agency is a full-service web development company specializing in custom website development, web design, and web programming. Reviews highlight their strong project management, responsiveness, and innovative design solutions. Approximately 80% of feedback mentions their ability to understand clients' needs and the effectiveness of their online development strategies. However, some clients noted areas for improvement, like team turnover and proactive communication.
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$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 15 projectsWebCap Digitals is a web development company specializing in custom website development, full-stack web development, and web application development. With 100% positive feedback across reviews, clients commend their timely project completion, effective communication, and flexibility. Around 58% of reviewers highlight their professionalism and commitment to delivering high-quality results, while 42% praise their value-for-money services and seamless project management.
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$1,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 22 projectsPrerna Trimurty Infotech Pvt. Ltd. is a versatile web development company specializing in web design, custom website development, and web application development. The company consistently receives positive feedback, with over 90% of reviewers appreciating their responsive communication and prompt delivery. Clients frequently commend their project management and programming skills, underscoring their commitment to delivering high-quality, timely solutions that meet client needs.
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$5,000+$100 - $149 / hr10 - 49Calgary, Canada
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See all 24 projectsTrue Market is a web development company specializing in custom website development and web design. Their client reviews reflect a high level of satisfaction, with 100% positive feedback highlighting their creativity, professionalism, and effective communication. Many clients commend their ability to tailor solutions to individual needs, with over 80% of reviews mentioning their impressive project management and timely delivery. True Market excels in creating engaging websites that align with clients’ brand identities.
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$25,000+$25 - $49 / hr2 - 9Astana, Kazakhstan
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See all 8 projectsSABYR TECHNOLOGIES is a web development company specializing in Web Development, Web Design, and Full-Stack Web Development services. The overall feedback is overwhelmingly positive, with approximately 90% of reviewers praising their project management, timely delivery, and ability to adapt solutions to meet diverse client needs. Clients consistently note their strong technical expertise and proactive approach in implementing complex web solutions.
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$50,000+$100 - $149 / hr50 - 249Sydney, Australia
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See all 33 projectsAppello Software is a web development company specializing in full-stack web development, custom website development, and web application development. They have received positive feedback for their efficient project management, high-quality design, and robust development capabilities. Approximately 90% of reviewers praised their communication and expertise, while 70% highlighted their ability to deliver user-friendly and functional platforms. However, some noted challenges in budgeting and timeline estimations.
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$5,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 50 projectsParacon Consultants Corp. is a web development company specializing in custom web and mobile application development, offering solutions like Website Development, Web Programming, and Web Application Development. Client feedback is overwhelmingly positive, with 100% of reviewers praising their project management, technical expertise, and alignment with company values. The firm is noted for its tailored solutions that enhance operational efficiency across various industries.
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$10,000+$150 - $199 / hr10 - 49Toronto, Canada
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See all 8 projects9thCO Inc. is a prominent web development company known for its proficiency in website development, web design, and custom website development solutions. The company has consistently received positive feedback, with 100% of reviews highlighting their timely delivery, responsiveness, and technical excellence in projects. Clients frequently commend their ability to align with business values and budgetary needs, as well as the impressive performance and user engagement improvements they bring to websites.
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$5,000+< $25 / hr50 - 249ha noi, Vietnam
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See all 9 projectsNKKTech Global is a full-stack web development company renowned for its adeptness in web application development, custom website development, and online development solutions. Approximately 100% of reviews highlight their technical expertise, proactive communication, and timely project delivery. Clients consistently praise their creativity, reliability, and ability to exceed project expectations, resulting in enhanced website performance and user engagement.
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$5,000+$25 - $49 / hr2 - 9Split, Croatia
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See all 24 projectsWorkspace is a web development company specializing in website design, custom website development, and online development. The company is recognized for its professional project management and expertise in web programming, with 88% of reviews highlighting their attention to user experience and responsive communication. While most feedback is positive, one client noted delays, indicating room for improvement.
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$5,000+$25 - $49 / hr10 - 49Sofia, Bulgaria
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See all 7 projectsCleverix - Software Engineering is a sophisticated software development company specializing in quality assurance, microservices development, and customized solutions, including CRM/TMS systems and prototypes. Their client feedback is overwhelmingly positive, with 100% of reviewers praising their technical expertise, proactive communication, and ability to integrate seamlessly into existing teams, resulting in significant improvements in project outcomes, such as enhanced quality and efficiency.
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$10,000+$50 - $99 / hr2 - 9
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See all 8 projectsIktomi is a Web Development company known for delivering comprehensive web solutions, including Website Development, UX/UI design, and Full-Stack Web Development. They receive predominantly positive feedback for their proactive and collaborative approach, with 100% of reviewers highlighting their excellent project management and communication skills. Clients consistently report successful project outcomes, emphasizing Iktomi's ability to align with brand visions and deliver intuitive, engaging online platforms.
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$25,000+$100 - $149 / hr10 - 49London , England
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See all 14 projectsAVAMAE Software Solutions Ltd is a web application development company known for delivering custom website development and full-stack web development services. Across various reviews, the company is praised for its transparency, adaptability, and strong project management skills, with 100% of reviews highlighting clear communication and collaboration. Their expertise in integrating user-friendly, scalable solutions is repeatedly mentioned, reflecting their commitment to client satisfaction and high-quality output.
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$25,000+$100 - $149 / hr50 - 249London, England
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See all 19 projectsPocket App is a custom Web Development company specializing in Web Design and Web Application Development. Reviewers highlight their expertise and forward-thinking approach in developing mobile apps and web platforms, with 100% positive feedback on their project management skills and adherence to timelines. Their solutions have won awards and significantly increased market share for clients.
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$25,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 12 projectsImpiCode is a web development company specializing in web application development and full-stack web development. Across their reviews, 100% of clients highlight their technical competence and professional project management, with particular praise for their effective communication and commitment to deliverables. Reviewers appreciate their reliability and transparency, with no reported areas for improvement.
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$5,000+$150 - $199 / hr2 - 9St. Louis, MO
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See all 10 projectsVIVIDSITES is a web development company specializing in website development, web design, and SEO services. With a focus on custom website development and web application development, they have consistently received positive feedback for their project management and communication skills. 100% of reviewers highlight their ability to meet or exceed expectations, while 80% emphasize their customer-centric approach and responsiveness.
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$25,000+$50 - $99 / hr10 - 49Cluj-Napoca, Romania
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See all 14 projectsSalt & Pepper is a web development company specializing in custom website development, web application development, and full-stack web development. The reviews indicate a high level of satisfaction, with 100% of feedback being positive. Clients frequently praise Salt & Pepper's strong project management, timely delivery, and ability to adapt to client needs, demonstrating expertise in both front-end and back-end development.
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$5,000+$50 - $99 / hr10 - 49Baar, Switzerland
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See all 12 projectsBertoni Solutions is a web development company specializing in custom website development and web application development, with expertise in front-end and back-end development using technologies like .NET and Xamarin. Reviewers praise their design work, agile management, and frequent communication, with 100% of feedback highlighting customer satisfaction and project completion. Minor areas for improvement include handling specific project complexities and QA processes.
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$50,000+$25 - $49 / hr50 - 249Bijeljina, Bosnia and Herzegovina
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See all 8 projectsitMedia is a versatile web development company known for full-stack web development and custom website development services. With 100% positive feedback, clients commend their structured project management, responsiveness, and commitment to quality. Approximately 75% of reviewers highlight their ability to handle complex projects and adaptability to evolving needs, ensuring successful delivery and client satisfaction.
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$10,000+$50 - $99 / hr50 - 249Kraków, Poland
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See all 19 projectsImplex is a versatile web development company specializing in Web Development, Custom Website Development, and Full-Stack Web Development. Reviews indicate a high level of customer satisfaction, with 100% of reviewers praising their professionalism and problem-solving abilities. Clients commend their capacity to deliver high-quality work efficiently, with impressive technical knowledge and strong project management capabilities. While there are minor concerns about overpromising delivery times, the overall feedback remains overwhelmingly positive.
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$25,000+$100 - $149 / hr10 - 49
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See all 15 projectsioSTUDIOS is a custom website development and web application development company that consistently delivers high-quality results across various sectors. With 100% positive feedback, clients commend their strong project management, technical expertise, and collaborative approach. Reviewers, representing 80% of feedback, highlight ioSTUDIOS's ability to improve business processes through tailored solutions, emphasizing their professionalism and cultural alignment with client needs.
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$5,000+$50 - $99 / hr2 - 9
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See all 4 projectsWebHero.co is a web development company providing comprehensive services such as custom website development, web design, and content creation. The overall feedback is overwhelmingly positive, with 100% of reviews highlighting their effective communication, timely delivery, and high-quality results. Clients frequently commend their ability to create professional and SEO-optimized websites that enhance brand positioning and drive inquiries.
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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
60% Web Development50% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.7/40.018.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% 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+$25 - $49 / hr250 - 999San Francisco, CA
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 / hr10 - 49London, England
Ability to deliver
38.7/40.019.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development90% JavaScript50% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
Ability to deliver
39.1/40.019.8/20 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 - 249Warszawa, Poland
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.4/40.019.4/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% 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 -
$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 -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$10,000+$25 - $49 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Web Development50% JavaScript80% 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 -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.1/40.016.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.1/40.018.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.3/40.018.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% 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 -
$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 -
$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 / hr10 - 49Wrocław, Poland
Ability to deliver
38.1/40.018.4/20 Reviews10/10 Clients & Experience9.7/10 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 / hr50 - 249Matlock, England
Ability to deliver
37.2/40.017.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript
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.