Top JavaScript Developers
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NTR Interactive is a SEO company. The Louisville, Kentucky-based team provides Search Engine Optimization and Web Development.
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UndisclosedUndisclosed2 - 9Osseo, MN
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Version11 Inc. Is a data analytics company. They are headquartered in Osseo, Minnesota, and their services include BI & big data consulting & SI and ERP consulting and SI.
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UndisclosedUndisclosed2 - 9Asheville, NC
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Crunchy Bananas, LLC. Is a small software development firm. They provide Custom Software Development and Web Development and were launched in 2015.
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UndisclosedUndisclosed2 - 9Brooklyn, NY
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SEO agency KYD Solutions was established in 2017. The agency offers Search Engine Optimization and UX/UI Design.
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UndisclosedUndisclosed2 - 9Rzeszów, Poland
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KODIGO Agencja Interaktywna is a Rzeszów, Poland-based branding firm. Founded in 2015, the team focuses on Branding and Social Media Marketing.
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UndisclosedUndisclosed2 - 9Kyiv, Ukraine
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Digital iT Advisor LLC is an UX company. Their small team is located in Kyiv, Ukraine. Their services include UX/UI Design and Custom Software Development.
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UndisclosedUndisclosed2 - 9Irving, TX
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Marcole Software Consulting is a custom software development firm. The team is located in Irving, Texas, and their services include Custom Software Development and Web Development.
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UndisclosedUndisclosed2 - 9Cranford, NJ
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WebZest LLC is a Cybersecurity company. Their small team of employees is in Cranford, New Jersey. Their team offers Cybersecurity and Web Development.
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UndisclosedUndisclosed2 - 9Arlington, VA
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Cyber Earth Solutions is a custom software development firm. Their team is based in Arlington, Virginia and offers Custom Software Development and Web Development.
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UndisclosedUndisclosed2 - 9Middletown, DE
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Atlas Data Services is a big data company. They are located in Middletown, Delaware and have small team. They provide BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosed2 - 9Sunnyvale, CA
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Established in 2006, AppLite.com is a SEO company. The agency specializes in Search Engine Optimization and BI & big data consulting & SI, and is small.
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UndisclosedUndisclosed2 - 9Aloma, FL
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SEO Specialist Florida, a SEO services firm, was launched in 2021. The small team provides Search Engine Optimization and Pay Per Click.
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UndisclosedUndisclosed2 - 9Benidorm, Spain
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Tridan SLU is a SEO company. Located in Benidorm, Spain, their small team offers Search Engine Optimization and Web Design. The agency was founded in 1996.
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UndisclosedUndisclosed2 - 9Ostrander, OH
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Pinnacle Webs is a web development company based in Ostrander, Ohio. Established in 2008, the team provides Web Development and Mobile App Development.
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$5,000+$100 - $149 / hr10 - 49San Jose, CA
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In San Jose, California, Evergreen Software Co. Is a branding company. Their services include Branding and Search Engine Optimization.
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UndisclosedUndisclosed2 - 9Pewaukee, WI
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Marketing Metrics Corp is a web design company. They are located in Pewaukee, Wisconsin. Their team focuses on Web Design and Content Marketing.
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$10,000+$50 - $99 / hrFreelancer
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IVERSIA is an UX design agency. They are headquartered in Calgary, Canada and have small team. Their services include UX/UI Design and Web Development.
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UndisclosedUndisclosedFreelancerBogotá, Colombia
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Social Latam is a small social media marketing firm. They specialize in Social Media Marketing and Logo and were founded in 2014.
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UndisclosedUndisclosedFreelancerProvo, UT
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Aaronjsmith.me is a web development company. The small Provo, Utah-based team provides Web Development and Web Design. The company was established in 2006.
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UndisclosedUndisclosedFreelancerToulouse, France
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Founded in 2010, ADvisuel is a small Toulouse, France-based SEO company. Their team focuses on Search Engine Optimization and Web Design.
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UndisclosedUndisclosedFreelancerCharlottesville, VA
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Charlottesville SEO Web Development, LLC is a small SEO agency. They provide Search Engine Optimization and Web Design and were established in 2006.
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UndisclosedUndisclosedFreelancer
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Ankitha Vasudev is a web design company. The Brooklyn, New York-based firm provides Web Design and UX/UI Design.
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UndisclosedUndisclosed2 - 9Roseville, MI
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Launched in 2017, True Industries, Inc. Is a small Roseville, Michigan-based mobile application development firm. Their team specializes in Mobile App Development and Artificial Intelligence.
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$5,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 12 projectsWeb 3.0 India is a web development company specializing in custom website development, full-stack web development, and web application development. They have received overwhelmingly positive feedback, with clients praising their excellent communication, flexible capabilities, and adherence to timelines and budgets. Approximately 95% of reviewers highlight their good value for cost, and many appreciate their project management and commitment to client success.
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$10,000+$50 - $99 / hr10 - 49Wallbach, Switzerland
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Based in Wallbach, Switzerland, Hendrik Thurau Enterprises is a small IT staff augmentation company. Their services include IT staff augmentation and Web Development.
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UndisclosedUndisclosed10 - 49Toronto, Canada
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TapLane Inc. Is a cloud consulting & SI company. Headquartered in Toronto, Canada, the agency was established in 2010. Their services include cloud consulting & SI and Web Development.
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$10,000+$150 - $199 / hr2 - 9Nottingham, England
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Gooii Ltd, a web design agency, is headquartered in Nottingham, England. They provide Web Design and Digital Strategy and were founded in 2001.
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$10,000+$150 - $199 / hr2 - 9Hallow, England
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Worcester Web Studio is a SEO company. Their team is in Hallow, England. The agency specializes in Search Engine Optimization and Social Media Marketing.
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$5,000+$100 - $149 / hr2 - 9Mesquite, TX
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Web design agency Comprotex Software is based in Mesquite, Texas. They provide Web Design and Graphic Design and were launched in 1995.
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$5,000+$100 - $149 / hr2 - 9San Jose, CA
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Located in San Jose, California and Chandigarh, India, Frisco Web Solutions is a small SEO agency. Their services include Search Engine Optimization and Web Design.
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UndisclosedUndisclosed2 - 9
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Small IT managed services company IDesign Web Solutions, is headquartered in Amherst, Canada. Their services include IT managed services and Web Design.
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UndisclosedUndisclosed2 - 9Montgomery, AL
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Media planning and buying company SMI Advertising is located in Montgomery, Alabama. They specialize in Media Planning & Buying and Graphic Design.
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UndisclosedUndisclosed2 - 9Waco, TX
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October Marketing is a small SEO services firm located in Waco, Texas. Their services include Search Engine Optimization and Email Marketing.
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UndisclosedUndisclosed2 - 9București, Romania
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E-commerce development firm Hype Media System was established in 2004. In București, Romania, the team offers E-Commerce Development and Pay Per Click.
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UndisclosedUndisclosed2 - 9Kyiv, Ukraine
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DevITeam is a web development company. The agency is in Kyiv, Ukraine. Their services include Web Development and UX/UI Design.
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UndisclosedUndisclosed2 - 9Greenville, SC
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1x1 Impression is a social media marketing firm. They offer Social Media Marketing and Content Marketing and are located in Greenville, South Carolina.
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UndisclosedUndisclosed2 - 9North Miami, FL
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Established in 1998, Brivin Corporation is a small North Miami, Florida-based SEO services firm. Their team offers Search Engine Optimization and Web Design.
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UndisclosedUndisclosed2 - 9Eugene, OR
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Net Visibility Group is a SEO services firm. They were founded in 2005, and their services include Search Engine Optimization and Custom Software Development.
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UndisclosedUndisclosed2 - 9New York, NY
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NYC SEO Pro is a SEO services firm. Their small team is based in New York, New York. Their team specializes in Search Engine Optimization and Social Media Marketing.
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UndisclosedUndisclosed2 - 9Cleveland, OH
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U Share Consulting, Inc., a software development firm, is located in Cleveland, Ohio. They focus on Custom Software Development and Web Development and were launched in 2011.
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UndisclosedUndisclosed2 - 9New York, NY
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DataSCIsive, a small big data company, is in New York, New York. Their services include BI & big data consulting & SI and Web Development.
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UndisclosedUndisclosed2 - 9Ijamsville, MD
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Launched in 2010, NBGAppDesign is a small Ijamsville, Maryland-based software development firm. Their services include Custom Software Development and Web Development.
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UndisclosedUndisclosed2 - 9Savannah, GA
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Digital Access Security Integrated is a big data company. The Savannah, Georgia-based team focuses on BI & big data consulting & SI and Custom Software Development.
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UndisclosedUndisclosed2 - 9Hartford, CT
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RISE SEO Services, a Marketing Strategy company, was launched in 2008. The team offers Marketing Strategy and Social Media Marketing and is headquartered in Hartford, Connecticut.
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UndisclosedUndisclosed2 - 9Indian Hills, CO
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BRE Management LLC. Is a Marketing Strategy company. Headquartered in Indian Hills, Colorado, the agency was founded in 2023. Their team focuses on Marketing Strategy and Social Media Marketing.
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UndisclosedUndisclosed2 - 9Draper, UT
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Wazeter, Inc. Is a branding agency. The Draper, Utah-based team specializes in Branding and Digital Strategy.
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UndisclosedUndisclosed2 - 9Aurora, CO
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Online Marketing Media, LLC is a branding firm. Founded in 2011, their team focuses on Branding and Social Media Marketing.
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UndisclosedUndisclosed2 - 9Yerevan, Armenia
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Launched in 2012, Dunice LLC is a small web design company. Their services include Web Design and UX/UI Design.
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UndisclosedUndisclosed2 - 9Houston, TX
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Mec Designs, a branding company, is headquartered in Houston, Texas. Their services include Branding and Search Engine Optimization.
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$25,000+$50 - $99 / hr10 - 49Cluj-Napoca, Romania
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See all 5 projectsOAK3- Out of Business was a web development company specializing in Magento platform services, including migrations and customizations. Reviews indicate a strong appreciation for their technical expertise and responsive project management, with 100% of clients highlighting their availability and communication. However, about 40% expressed concerns regarding their performance with Magento 2 migrations, suggesting a need for improvement in this area.
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List of the Top 15 JavaScript Development Companies
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$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
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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
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38.9/40.019/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
60% Web Development50% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
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39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
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38.3/40.018.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$5,000+$25 - $49 / hr50 - 249Warszawa, Poland
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37.5/40.018.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$10,000+$25 - $49 / hr250 - 999Bengaluru, India
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39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Web Development40% JavaScript80% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
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38.9/40.019.4/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$25,000+$50 - $99 / hr50 - 249London, England
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39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development50% JavaScript70% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
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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+$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 -
$1,000+< $25 / hr250 - 999Walpole, MA
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35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
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38.9/40.019.4/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
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39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
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38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
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38.8/40.018.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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36.8/40.017.8/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
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36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.3/40.018.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
45% Web Development10% JavaScript55% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.1/40.016.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$25,000+$50 - $99 / hr10 - 49Poznań, Poland
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37.1/40.017.6/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development60% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
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35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
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38.8/40.019/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
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38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
40% Web Development70% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Maribor, Slovenia
Ability to deliver
36.1/40.020/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
40% Web Development100% JavaScript60% Other -
$50,000+$150 - $199 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Web Development20% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
36.7/40.017.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$5,000+$25 - $49 / hr50 - 249Hong Kong, Hong Kong
Ability to deliver
37.8/40.018.4/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
25% Web Development60% JavaScript75% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
37.1/40.017.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.