Top JavaScript Developers
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 89 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development firm specializing in full-stack and custom website development. Reviews consistently highlight their exceptional project management, technical expertise, and strong communication skills. Approximately 90% of reviewers commend their proactive and reliable service, resulting in improved project delivery times and increased user satisfaction across various web applications.
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$5,000+$25 - $49 / hr10 - 49Sahibzada Ajit Singh Nagar, India
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See all 2 projectsMillipixels Interactive LLP is a specialized firm offering UX/UI design, software development, and enterprise solutions. Reviewers commend their technical expertise and collaborative approach, with 100% positive feedback highlighting their innovative ideas and user-centric design. While some noted room for improvement in speed, clients universally praised their project management and ability to transform ideas into market-ready products.
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$5,000+Undisclosed10 - 49Scottsdale, AZ
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See all 2 projectsParsus Solutions, LLC is a proficient web development company specializing in custom website development and full-stack web development. Their clients report a seamless experience with 100% positive feedback, highlighting their exceptional communication, dedication, and integrity. They excel in front-end and back-end development, as evidenced by increased client success metrics and significant project satisfaction.
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$10,000+$25 - $49 / hr50 - 249Hastings, England
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See all 2 projectsA-listware is a web development company noted for its strong alignment with client values and cost-effectiveness. With 100% positive feedback, clients consistently commend their professional communication and timely delivery. Their expertise in custom website development has facilitated successful project launches, demonstrating significant growth and operational stability over extended periods.
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$1,000+$50 - $99 / hr2 - 9Warszawa, Poland
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See all 3 projectsDATADISE is a web development company specializing in designing and building custom websites. Reviews highlight their successful project management and timely delivery, with 100% positive feedback on their ability to launch trouble-free websites and achieve high Google rankings. Clients appreciate their knowledgeable team and excellent value for cost.
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$1,000+$25 - $49 / hr10 - 49Glendale, CA
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See all 4 projectsWebStax Studio is a web development company specializing in Website Development, SEO Optimization, and Custom Website Development. With a 100% positive feedback rate, clients commend their professionalism, creativity, and technical prowess. Notably, 50% of reviewers highlighted their exceptional project management and responsiveness, while another 50% praised the strategic SEO leading to significant organic traffic growth and conversion rate enhancements.
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$10,000+$25 - $49 / hr10 - 49Buenos Aires, Argentina
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See all 2 projectsChubut IT is a web development company specializing in custom website development and full-stack web development. The feedback is overwhelmingly positive, with clients praising their agile, flexible approach and rapid adaptation to project needs. Notably, 100% of reviewers highlight the company's ability to deliver projects on time and meet complex requirements effectively.
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$1,000+$25 - $49 / hr2 - 9Cape Town, South Africa
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See all 2 projectsRaceLine Design Studio is a web development company specializing in web design services, noted for their clear communication and strong work ethic. With 100% positive feedback from reviewers, they have been commended for their timely delivery and engaging, modern design solutions, particularly in enhancing user experience and mobile responsiveness.
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$10,000+$100 - $149 / hr2 - 9Danville, CA
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See all 4 projectsMocha Designs is a web development company specializing in comprehensive web design and web application development services. They consistently receive positive feedback for their responsiveness and delivery of projects on time, with 100% of reviewers highlighting their commitment to meeting deadlines and providing excellent value for cost. Clients particularly appreciate Mocha Designs' technical expertise, with 75% mentioning their adept problem-solving skills.
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$10,000+$100 - $149 / hr10 - 49Torrance, CA
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See all 1 projectsFlaidex LLC is a UI/UX design company praised for its technical expertise and collaborative approach. Clients noted a significant boost in user engagement and satisfaction due to Flaidex's intuitive design and efficient project management. All reviews reflect extremely positive feedback, highlighting their attention to detail and commitment to quality, with no areas for improvement mentioned.
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$100,000+$50 - $99 / hr10 - 49Novi Sad, Serbia
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See all 15 projectsUN1QUELY is a cybersecurity company specializing in penetration testing and security assessments. The reviews consistently highlight their professionalism, timely delivery, and exceptional communication, with 100% of reviewers expressing satisfaction and no areas for improvement noted. Common themes include their responsiveness, dedication to meeting deadlines, and high-quality deliverables.
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$1,000+$25 - $49 / hr2 - 9Surat, India
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See all 4 projectsINHYE Process Experts (P) Ltd is a web development company specializing in custom website development, web programming, and web application development. They are praised for good communication and delivering value, with 100% positive reviews highlighting their project management effectiveness and ability to meet client needs efficiently. Reviewers appreciate the ease of collaboration and the company’s professionalism.
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$5,000+$25 - $49 / hr10 - 49Benidorm, Spain
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See all 1 projectsDataRise Studio is a consultancy firm specializing in market analysis, technical documentation, and system design. Reviewers unanimously praise their ability to deliver projects ahead of schedule with significant cost-saving optimizations. Impressively, 100% of reviewers commend their calmness under pressure and excellent project management, highlighting their anticipation of client needs.
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Undisclosed$100 - $149 / hr10 - 49Minneapolis, MN
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See all 5 projectsFirebrand is a multifaceted digital marketing agency specializing in content creation, SEO, web development, and strategic marketing solutions. The company has garnered overwhelmingly positive feedback, with approximately 90% of clients praising their innovative approach, effective project management, and impressive results. Clients frequently commend Firebrand for increasing traffic, improving conversion rates, and elevating brand visibility through tailored digital strategies.
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$1,000+$25 - $49 / hr10 - 49Pune, India
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See all 4 projectsLinescripts Softwares Pvt. Ltd. is a versatile development company specializing in custom CRM, ERP, and web development services. The company is praised for its timely delivery, budget adherence, and effective communication, with no negative feedback evident across reviews. Clients appreciate their goal-oriented approach and ability to provide intuitive design solutions, with approximately 100% of reviewers noting their professionalism and proactive engagement.
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UndisclosedUndisclosed10 - 49Brighton, England
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See all 4 projectsCreative Stack Ltd is a web development company specializing in custom website development, full-stack web development, and web application development. The feedback from clients is overwhelmingly positive, with over 95% highlighting their technical expertise, efficient communication, and calm demeanor. Clients appreciate the company's seamless collaboration and proactive project management, enhancing user-friendliness and project outcomes.
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$1,000+< $25 / hr10 - 49Noida, India
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See all 3 projectsBitlyze Technologies Private Limited is a web development company known for its expertise in custom website development and mobile app solutions. The company receives overwhelmingly positive feedback, with clients praising their efficient communication, timely delivery, and high-quality services. Notably, 100% of reviewers commend Bitlyze's effective project management and strong technical proficiency.
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$1,000+< $25 / hr10 - 49
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See all 6 projectsDotLinker Technologies Private Limited is a web development company specializing in diverse services, including full-stack web development, web application development, and custom website development. Nearly all reviewers praised their professional project management and timely delivery, with around 80% highlighting their ability to respond promptly to client needs and implement changes effectively. Notably, their flexibility and alignment with client values were recurring positive themes across reviews.
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$10,000+$150 - $199 / hr10 - 49Hoover, AL
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See all 1 projectsKEYSYS is a software development company that excels in creating secure document transfer solutions, as demonstrated by their project with a bank-owned consumer finance company. They have received 100% positive feedback, with reviewers highlighting their responsiveness and ability to meet deadlines. Their work has significantly improved remote loan processing, transforming business operations during the COVID-19 pandemic.
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$1,000+$25 - $49 / hr10 - 49London, England
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See all 2 projectsDevsStream is a web development company specializing in custom website development and web design. They received 100% positive feedback, with clients highlighting their outstanding work quality and impressive website designs. Reviewers consistently praised their ability to deliver projects ahead of schedule and recommended clear communication of requirements for optimal results.
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$5,000+$50 - $99 / hr10 - 49Lexington, KY
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See all 3 projectsSaaS Partners, primarily known for their custom development services, have garnered a reputation as a reliable partner for creating applications and management suites. Their client feedback is overwhelmingly positive, with a significant emphasis on their excellent communication and project management capabilities. Approximately 90% of their reviews highlight their ability to deliver projects on time and within budget, showcasing their commitment to quality and customer satisfaction.
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$1,000+$25 - $49 / hr2 - 9
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See all 3 projectsAirbow IT Services is a technology development company specializing in website and mobile app creation. They are praised for their expertise and integrity, with 100% of reviewers noting their responsive project management and commitment to improvement. While some suggest enhanced project structure, the team's proactive adaptation and dedication to client success underscore their reputation as reliable long-term partners.
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$10,000+$50 - $99 / hr2 - 9Sofia, Bulgaria
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See all 1 projectsTweerous OOD is a development company specializing in complex fintech platforms, delivering both mobile and web applications with robust integration capabilities. Their work is highly regarded, with 100% positive feedback highlighting their independence and reliability, as evidenced by an app rating of 4.9 stars with over 1,000 reviews.
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$5,000+$50 - $99 / hr10 - 49Dubai, United Arab Emirates
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See all 4 projectsCode Genesis is a software development company specializing in AI-driven HR and recruitment systems. Reviewers commend their strong technical expertise and alignment with business needs, with 100% positive feedback highlighting their structured project management and responsiveness. Their solutions significantly improved hiring efficiency, with time-to-hire reduced by 63% and candidate screening time decreased by 78%.
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$1,000+$50 - $99 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 1 projectsHireWebPro Solutions is a web development company specializing in Website Development and Web Application Development. Ninety percent of reviewers highlight their exceptional project management and strategic consulting, noting significant improvements in website performance and internal efficiency. The company is commended for its ability to deliver responsive, visually appealing websites and custom web applications, with 100% positive feedback on collaboration and communication.
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$5,000+$25 - $49 / hr50 - 249Kolkata, India
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See all 11 projectsCrescentek is a versatile web development company renowned for its expertise in Website Development, SEO, and Custom Web Solutions. They have received overwhelmingly positive feedback, with 100% of reviewers highlighting their responsiveness, expertise, and value for cost. Their highly communicative and flexible approach to project management has led to seamless functionality and strong client satisfaction across diverse digital projects.
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$10,000+$50 - $99 / hr10 - 49
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See all 7 projectsEdicasoft is a versatile web development company specializing in full-stack web development and custom website development. The company has received overwhelmingly positive feedback for its ability to meet tight deadlines and its proactive, responsive team. Reviewers consistently praise Edicasoft's technical expertise and flexibility, with 100% of reviews highlighting their effective communication and innovative problem-solving.
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$5,000+< $25 / hr10 - 49Ahmedabad, India
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See all 5 projectsPixometry Infosoft Pvt. Ltd., a web development company, excels in full-stack web and mobile application development, offering services like API creation and backend integrations. They are praised for their responsiveness and significant positive impact, with 100% positive feedback highlighting their flexibility and strong project management. Reviewers note their vested interest in client success.
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$10,000+$100 - $149 / hr10 - 49San Diego, CA
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See all 1 projectsWired Avenue is a mobile app development company known for its advanced mobile applications, logo design, and wireframing services. The reviews indicate a 100% positive feedback rate, highlighting their high-quality design work, effective communication, and dedication to exceeding project expectations with no areas needing improvement.
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$1,000+< $25 / hr10 - 49Bhubaneswar, India
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See all 3 projectsYoctotta Softwares Private Limited is a web development company specializing in Web Design and Website Development, offering services such as creating custom websites with email capabilities. Client feedback highlights their professionalism and effective communication, with 100% of reviewers mentioning their impressive work culture and project management style.
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$1,000+< $25 / hrFreelancer
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See all 4 projectsKarabach Media is a web development company recognized for its professional and client-focused approach in custom website development. With a 100% positive feedback rate, reviewers consistently highlight the company's effective communication, timely project management, and ability to increase website traffic, showcasing their expertise in full-stack web development.
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$1,000+$50 - $99 / hr2 - 9
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See all 2 projectsGreenhouse web studio is a web development company specializing in custom website development and digital strategy. They received positive feedback for their strategic approach and effective project management, with 100% of reviewers noting timely delivery and collaborative processes. The studio excels in crafting marketing-focused websites, achieving increased brand recognition and lead generation for their clients.
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$1,000+$50 - $99 / hr2 - 9Old Bridge, NJ
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See all 1 projectsBoftware is a software development company specializing in app development, website optimization, and offering technological advice. According to client feedback, 100% of reviewers praised their project management, timely delivery, and collaborative approach, highlighting their ability to align with client goals and provide valuable insights. Their service consistently exceeds expectations, with no areas for improvement identified.
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$1,000+$50 - $99 / hr2 - 9
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See all 1 projectsOne Nine Media is a web development company specializing in enhancing online visibility and driving sales through custom website development, SEO, and paid media strategies. The reviews reflect a 100% positive sentiment, highlighting their strong project management skills and ability to meet business needs effectively, with no areas for improvement noted.
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$1,000+$200 - $300 / hr50 - 249
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See all 2 projectsKIjero Software Development Company is a proficient web development company, with expertise in Custom Website Development and Web Application Development. They received 100% positive feedback for their project management and delivery, impressing clients with their adherence to timelines and budget constraints, while enhancing user engagement and sales through effective eCommerce solutions.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsReaktive is a web development company specializing in e-commerce platform creation and technical SEO. Their work is characterized by exceptional project management and responsiveness, with 100% customer satisfaction reported. Clients particularly appreciate their ability to deliver customized solutions efficiently and their commitment to exceeding expectations in website performance and content accuracy.
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$1,000+< $25 / hr2 - 9Uttarpara, India
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See all 1 projectsSpiceHook Solutions is a web development company specializing in Website Development and Web Design, as evidenced by their expertise in modifying and improving existing websites using platforms like WordPress. Reviewers consistently highlight their strong communication skills and timely delivery, with 100% positive feedback emphasizing their ability to provide specific solutions and achieve increased audience engagement.
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$1,000+$50 - $99 / hr50 - 249Dubai, United Arab Emirates
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See all 1 projectsGlobal Surf Digital is a web development company that specializes in website redevelopment, SEO, digital campaigns, and social media management. The company receives overwhelmingly positive feedback, with 80% of leads generated through their campaigns and most clients praising their timely delivery and attention to detail. Their talented in-house team is frequently highlighted as a unique strength.
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$25,000+$100 - $149 / hr10 - 49Hermosillo, Mexico
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See all 1 projectsFifty Seven Pounds is a technology company specializing in website management and SEO content strategy. The reviews reflect a 100% positive sentiment, highlighting their adaptability, effective project management, and commitment to client success. Notably, 100% of reviewers appreciated their ability to align with company culture and handle project scope changes efficiently, ensuring timely and valuable project delivery.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsWizart Inc. is a software company specializing in product visualization solutions. The feedback highlights their exceptional communication and efficiency, with 100% of reviewers praising the ease of use and seamless implementation of their visualizer. While clients appreciate their straightforward system, there is a desire for CRM integration to enhance data accessibility.
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Undisclosed< $25 / hr2 - 9
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See all 1 projectsThird Bracket is a web development company specializing in custom website development and web design. The reviews indicate a 100% positive feedback rate, highlighting their professional and modern deliverables across web and digital services. Clients appreciate their transparent pricing and effective communication, with 100% noting timely delivery and responsiveness to project needs.
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$10,000+$200 - $300 / hr2 - 9Santa Cruz, CA
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See all 2 projectsCloud Brigade, formerly known as Launch Brigade, is a technology service provider offering website development, IT maintenance, and technical support. Their reviews highlight a 100% positive feedback rate, emphasizing their technical expertise, seamless project management, and ability to meet deadlines. Clients appreciate Cloud Brigade's comprehensive knowledge and reliability in resolving IT challenges and maintaining secure, efficient digital environments.
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$1,000+< $25 / hr10 - 49
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See all 1 projectsCodebrik Solutions LLP is a software development company specializing in business ERP systems, offering full development and support services. Reviews highlight their effective communication and responsiveness, though there are suggestions for improving work quality and timeliness. While one reviewer appreciated their budget-friendly services, they noted that the project extended beyond the original timeline.
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$25,000+$150 - $199 / hr2 - 9
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See all 5 projectsUntold Studio is a web development company specializing in custom website development, web application development, and full-stack web development. They are highly praised for their project management skills, flexibility, and ability to deliver projects on time and within budget, with 100% of reviewers highlighting their understanding and responsiveness. Clients commend their seamless integration with internal teams and a strong focus on building trust.
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$1,000+$50 - $99 / hr2 - 9
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See all 2 projectsWe Tech You is a web development company specializing in website design, logo creation, and custom website development. They have received 100% positive feedback for their attentiveness and responsiveness, as well as their strong customer service and knowledge base, with all reviewers noting their timely delivery and alignment with client values.
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$1,000+$25 - $49 / hr2 - 9Los Angeles, CA
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See all 1 projectsBlueHubs Digital Marketing Agency is a versatile agency specializing in digital services such as website development, social media management, photography, and videography. With 100% positive feedback, clients commend their dedication and passion, highlighting the agency's efficient project management and effective team collaboration as key strengths.
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$10,000+$100 - $149 / hr2 - 9
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See all 1 projectsSpotfin Creative is a web development company known for its expertise in Web Design and Website Development, particularly using WordPress. Clients praise the company for its responsive communication and ability to anticipate client needs, with 100% of reviewers noting improvements in website usability and aesthetics. The principal, Drew Poland, receives commendation for his professionalism and effective project management.
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$1,000+< $25 / hr2 - 9Dombivli, India
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See all 1 projectswpscreators is a proficient web development company specializing in WordPress solutions, as highlighted by their successful redesign of an organic food e-commerce site. They received positive feedback, with 100% of reviewers appreciating their cost-effectiveness and problem-solving capabilities. Clients noted their impressive WordPress expertise and effective project management.
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$1,000+$25 - $49 / hr10 - 49
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See all 3 projectsTAKY IT Systems (Out of Business) was a software development company known for its high-quality services and innovative solutions in cross-platform applications, content aggregation platforms, and safety management tools. Across three reviews, clients praised TAKY IT Systems for their initiative, flexibility, and effective project management, with 100% of reviews highlighting their capability to deliver ahead of schedule and adapt to client needs. However, one client suggested expanding their team for handling multiple projects simultaneously.
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$10,000+$50 - $99 / hr10 - 49Raleigh, NC
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See all 3 projectsGehtsoft USA is a software development company known for its expertise in creating complex, scalable platforms across mobile, desktop, and web environments. The company has received overwhelmingly positive reviews, with 100% of reviewers highlighting their exceptional project management, technical acumen, and ability to deliver tailored solutions that exceed expectations. Clients appreciate Gehtsoft's seamless integration, innovative approach, and dedication to forming lasting partnerships.
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$1,000+$50 - $99 / hr10 - 49London, England
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See all 1 projectsPrimo Interactive is a web development company specializing in custom website development and backend functionality improvement. With 100% positive feedback, reviewers frequently highlight the company's ability to enhance backend operations and ensure high uptime, with one client reporting 99.999% uptime. Their strong alignment with client values and ongoing support is consistently commended.
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This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
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List of the Top 15 JavaScript Development Companies
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$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.5/40.019.2/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
65% Web Development20% JavaScript35% Other -
$10,000+$50 - $99 / hr50 - 249Kuala Lumpur, Malaysia
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.6/40.019.6/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
39.3/40.019.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.4/40.016.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.3/40.016.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.7/40.019.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37/40.018/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.3/40.018.4/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
28% Web Development15% JavaScript72% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.5/40.018.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.2/40.016.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$5,000+$50 - $99 / hr50 - 249Maribor, Slovenia
Ability to deliver
36.1/40.020/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
40% Web Development100% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
37.6/40.017.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$25,000+$50 - $99 / hr50 - 249Poznań, Poland
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Web Development10% JavaScript50% Other
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.