Top JavaScript Developers
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Featured
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 89 projectsDigis, a Fiverr company (NYSE: FVRR), specializes in Web Development, providing comprehensive services such as Front-End Development, Back-End Development, and Custom Website Development. Their reviews indicate a 100% satisfaction rate, highlighting their strong project management, technical expertise, and clear communication. Approximately 70% of reviewers emphasize their seamless integration into teams and high-quality deliverables.
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UndisclosedUndisclosed10 - 49Florești, Romania
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Web Marketing Transylvania is a Florești, Romania-based web development company. Founded in 2016, the team provides Web Development and Social Media Marketing.
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UndisclosedUndisclosed10 - 49Cluj-Napoca, Romania
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SEO services firm Pro Digital Media was launched in 2007. The small team focuses on Search Engine Optimization and Social Media Marketing.
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UndisclosedUndisclosed10 - 49Belfast, Northern Ireland
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Betley Whitehorne Image, a branding agency, is in Belfast, Northern Ireland. The team focuses on Branding and Web Development.
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UndisclosedUndisclosed10 - 49București, Romania
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Danco Vision S.R.L. Is a PPC company founded in 2006. Their services include Pay Per Click and Search Engine Optimization.
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UndisclosedUndisclosed10 - 49Nottingham, England
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Launched in 2004, Zygo Consulting is a web design agency. The small team offers Web Design and Email Marketing.
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UndisclosedUndisclosed10 - 49Rosario, Argentina
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KODEAR is a custom software development firm. Their team is located in Rosario, Argentina. The firm specializes in Custom Software Development and Web Design.
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UndisclosedUndisclosed10 - 49Longview, TX
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Absolute Technology Solutions, LLC is an IT managed services company located in Longview, Texas. Established in 2009, the team provides IT managed services and Search Engine Optimization.
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UndisclosedUndisclosed10 - 49Nottingham , England
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Fresher and Prosper is a website development company. The small Nottingham , England-based team provides Web Development and Branding. The agency was launched in 1999.
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UndisclosedUndisclosed10 - 49
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Established in 2017, Orcas Technologies Ltd is a custom software development company. The team offers Custom Software Development and Cybersecurity.
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UndisclosedUndisclosed10 - 49Bari, Italy
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Allaseconda is a small website development company. Established in 2017, the team specializes in Web Development and Branding.
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UndisclosedUndisclosed10 - 49
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Space Web is an IT managed services company in Bari, Italy. Their services include IT managed services and Web Design.
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UndisclosedUndisclosed10 - 49Bari, Italy
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Aryma is an IT managed services company launched in 2008. The firm focuses on IT managed services and Web Design.
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UndisclosedUndisclosed10 - 49Zagreb, Croatia
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Software development company and website development company Trikoder was launched in 2008. The company specializes in Custom Software Development and Web Development, and is small.
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UndisclosedUndisclosed10 - 49Bari, Italy
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Based in Bari, Italy, Matwork is a web design agency. Their services include Web Design and Social Media Marketing.
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UndisclosedUndisclosed10 - 49
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BariWeb Infotecnica is a web design company. They are based in Bari, Italy and have small team. They focus on Web Design and Branding.
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UndisclosedUndisclosed10 - 49Bari, Italy
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SocialWeb Solutions is a Bari, Italy-based web design company. Their services include Web Design and Custom Software Development.
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UndisclosedUndisclosed10 - 49Bari, Italy
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Magistro & Creativi Associati is a web design agency. Launched in 2014, the team offers Web Design and Branding. The agency is based in Bari, Italy.
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UndisclosedUndisclosed10 - 49Modugno, Italy
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ALTAnet is a custom software development company. Launched in 1996, the team specializes in Custom Software Development and Search Engine Optimization. The firm is located in Modugno, Italy.
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UndisclosedUndisclosed10 - 49Bari, Italy
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LaboratorioCom is an Advertising company. Located in Bari, Italy, the company was established in 2010. Their services include Advertising and Web Design.
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UndisclosedUndisclosed10 - 49Terlizzi, Italy
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MoreThanWeb , a web design company, is located in Terlizzi, Italy. Established in 2014, the team provides Web Design and Branding.
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UndisclosedUndisclosed10 - 49Bari, Italy
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Launched in 2018, Idearla is an Advertising company. Headquartered in Bari, Italy, the team focuses on Advertising and Email Marketing.
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UndisclosedUndisclosed10 - 49
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Launched in 2003, Holly Promotion is an Advertising company. The company focuses on Advertising and Email Marketing.
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$1,000+$25 - $49 / hr10 - 49
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Logictrix Infotech Pvt Ltd is a cloud consulting & SI company. The agency was launched in 2018. Their services include cloud consulting & SI and IT staff augmentation.
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UndisclosedUndisclosed10 - 49Málaga, Spain
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A2 System is an UX design agency. They are located in Málaga, Spain and have small team of experts. Their services include UX/UI Design and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49Hong Kong, Hong Kong
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Wild Solutions is a social media marketing agency established in 2014. The company provides Social Media Marketing and Search Engine Optimization, and is small.
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UndisclosedUndisclosed10 - 49Irving, TX
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Annamraju Designs & Technologies is a software development firm founded in 2017. The firm provides Custom Software Development and Web Development.
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UndisclosedUndisclosed10 - 49Cebu City, Philippines
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Located in Cebu City, Philippines, Metaverse Software Development Services is an user experience design agency. They specialize in UX/UI Design and Graphic Design and were launched in 2021.
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UndisclosedUndisclosed10 - 49Tirana, Albania
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TOGO is a branding agency. Founded in 2020, the company is based in Tirana, Albania. Their team focuses on Branding and Email Marketing.
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UndisclosedUndisclosed10 - 49
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Established in 2018, SunnyByte is a custom software development firm. Their services include Custom Software Development and Web Development.
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UndisclosedUndisclosed10 - 49Henderson, NV
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Web3Box Software LLC is an UX design company founded in 2015. The team provides UX/UI Design and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49
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PPC agency Sense8 Digital Technology is headquartered in Bucharest, Romania. They focus on Pay Per Click and Graphic Design and were launched in 2017.
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UndisclosedUndisclosed10 - 49
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Osminog is a SEO company. Founded in 2019, the company focuses on Search Engine Optimization and Social Media Marketing.
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UndisclosedUndisclosed10 - 49Dhaka, Bangladesh
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Dynamicflow is a small Dhaka, Bangladesh-based graphic design agency. The team focuses on Graphic Design and Video Production.
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UndisclosedUndisclosed10 - 49Katowice, Poland
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Massive Pixel Creation is a web design agency launched in 2012. The firm offers Web Design and UX/UI Design, and is small.
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UndisclosedUndisclosed10 - 49Chennai, India
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Small branding firm Akkurate Digital Solution, is headquartered in Chennai, India. Their services include Branding and Social Media Marketing.
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$1,000+< $25 / hr10 - 49
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See all 2 projectsWebsite Design Maestros offers web development and web design services, including website optimization and digital marketing campaigns. Reviews highlight their exceptional project management, responsiveness, and the ability to deliver visually appealing, user-friendly websites that drive measurable results like increased web traffic and enhanced online presence. Clients appreciate their commitment to quality and customer satisfaction.
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$50,000+$50 - $99 / hr10 - 49Maia, Portugal
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Skrey is an e-commerce development firm. Based in Maia, Portugal, their team specializes in E-Commerce Development and UX/UI Design.
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$1,000+$25 - $49 / hr2 - 9Budapest, Hungary
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See all 1 projectsOpThink specializes in IT and software development, particularly in automation for cost reduction and project management. Clients appreciate their transparency, supportiveness, and effective project management. While there was a minor delay in project completion, the overall feedback highlights their ability to significantly increase project handling capacity and their exceptional customer service.
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$1,000+$100 - $149 / hr2 - 9Cluj-Napoca, Romania
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See all 1 projectsGeniusweb provides e-commerce development services, as demonstrated by their work in launching an online store for a medical company. Reviews highlight their exceptional project management, attention to detail, and timely delivery, resulting in a seamless and efficient experience for clients. The company is praised for its high-quality service and strong value for cost, with no noted areas for improvement.
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Undisclosed$25 - $49 / hrFreelancer
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Storm Creatives is a custom software development company. Launched in 2014, the team provides Custom Software Development and UX/UI Design.
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$1,000+$25 - $49 / hrFreelancerKraków, Poland
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OCTOCODE is a small software development firm located in Kraków, Poland. The team provides Custom Software Development and Application Management & Support.
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$5,000+< $25 / hrFreelancer
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WEBMAN TECHNOLOGIES, an app development firm, was launched in 2012. The firm specializes in Mobile App Development and UX/UI Design.
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$1,000+$50 - $99 / hr2 - 9Kochi, India
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User experience agency UILOCATE provides UX/UI Design and Branding. They are in Kochi, India and Kakkanad, India.
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$10,000+$25 - $49 / hr2 - 9
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Founded in 2012, GEMOTIAL is a small custom software development company. Their services include Custom Software Development and Application Management & Support.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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In Ahmedabad, India, Aarav Web Solutions is a software development firm. Their services include Custom Software Development and UX/UI Design.
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$1,000+$50 - $99 / hr2 - 9Kielce, Poland
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3CK Studio is a Kielce, Poland-based software development firm. The team offers Custom Software Development and Application Management & Support.
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$1,000+$25 - $49 / hr2 - 9
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Launched in 1999, Shoma.net website design & Hosting Solution Provider is a web design agency. Their team offers Web Design and E-Commerce Development.
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$5,000+$100 - $149 / hr2 - 9Naples, FL
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Located in Grand Rapids, Michigan and Naples, Florida, Intellectual Ninjas is a pay per click company. They offer Pay Per Click and Digital Strategy and were launched in 2012.
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$1,000+Undisclosed2 - 9
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RSH Technologies OÜ is a small custom software development firm headquartered in Tallinn, Estonia. The team provides Custom Software Development and Mobile App Development.
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$1,000+Undisclosed2 - 9
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Turkoglu International IT, a software development company, was established in 2012. The firm specializes in Custom Software Development and Mobile App Development, and is small.
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List of the Top 15 JavaScript Development Companies
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$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$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 -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
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38.5/40.019.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
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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
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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
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38.7/40.019.4/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
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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
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39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.5/40.017.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
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39.8/40.019.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
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39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% 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 - 249L'viv, Ukraine
Ability to deliver
37.6/40.018.6/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
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36.8/40.017/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Kolkata, India
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36.7/40.019.4/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
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38.7/40.018.8/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% 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
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39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.3/40.016.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.7/40.019.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
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36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
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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 -
$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 -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
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37.3/40.018.2/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$10,000+$50 - $99 / hr10 - 49Montevideo, Uruguay
Ability to deliver
38.3/40.019.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$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 -
$25,000+$25 - $49 / hr50 - 249Rickmansworth, England
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development20% JavaScript40% Other
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.