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 91 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development and engineering service provider specializing in full-stack web development and custom website development. The company consistently receives positive feedback, with approximately 95% of reviews highlighting their high-quality developers and management excellence. Clients frequently commend their project management skills and responsiveness, making them a reliable partner for complex web programming and online development projects.
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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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$25,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 2 projectsPhone X App Solutions provides comprehensive Web Development services, including Web Design, robust search functionalities, SEO, and social media integration. Reviews highlight their reliable project management, timely delivery, and exceptional customer service. Clients particularly appreciate their innovative approach and strong communication.
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$10,000+$100 - $149 / hr10 - 49Portland, OR
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Harlo Agency is a small branding agency. Established in 2004, the team provides Branding and Marketing Strategy.
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$5,000+$100 - $149 / hr10 - 49Des Moines, IA
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Flying hippo is an Advertising company. They offer Advertising and Branding and were established in 2003. The firm is located in Des Moines, Iowa.
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$25,000+$25 - $49 / hr10 - 49San Clemente, CA
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Adapt360, a software development company, offers Custom Software Development and Web Development. The company is in San Clemente, California.
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UndisclosedUndisclosed10 - 49Shenzhen Shi, China
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Somos Digital is a software development firm. Located in Shenzhen Shi, China, the firm was launched in 2016. Their services include Custom Software Development and Web Design.
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UndisclosedUndisclosed10 - 49Torino, Italy
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Karma Communication is a small web design company. Launched in 2007, the team focuses on Web Design and Advertising.
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UndisclosedUndisclosed10 - 49Tijuana, Mexico
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SoftKitect, a software development firm, was established in 2015. They specializes in Custom Software Development and Mobile App Development.
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UndisclosedUndisclosed10 - 49Rosario, Argentina
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Custom software development company Fantommers is located in Rosario, Argentina. Their services include Custom Software Development and IT strategy consulting.
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UndisclosedUndisclosed10 - 49Wayville, Australia
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Alltraders, a software development company, was established in 2006. They focuses on Custom Software Development and Graphic Design.
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UndisclosedUndisclosed10 - 49Alexandria, VA
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SimonComputing, Inc. Is a software development company. Located in Alexandria, Virginia, the team offers Custom Software Development and Cybersecurity.
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UndisclosedUndisclosed10 - 49Louisville, KY
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QtheAgency is a small Advertising company. Founded in 1994, the team provides Advertising and Branding.
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UndisclosedUndisclosed10 - 49San Mateo, CA
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Established in 2010, Hi Dev is a software development company. The team specializes in Custom Software Development and Web Development.
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UndisclosedUndisclosed10 - 49
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RVA Fintech Solutions is a software development company in Kyiv, Ukraine. They focus on Custom Software Development and Blockchain.
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We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
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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
60% Web Development50% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.7/40.018.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Web Development40% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
38.7/40.019.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development90% JavaScript50% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
Ability to deliver
39.1/40.019.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$5,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.4/40.019.4/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$1,000+< $25 / hr250 - 999Walpole, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37/40.018/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$10,000+$25 - $49 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.1/40.016.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.1/40.018.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.3/40.018.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
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36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
45% Web Development10% JavaScript55% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.1/40.016.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$25,000+$50 - $99 / hr10 - 49Wrocław, Poland
Ability to deliver
38.1/40.018.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development70% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Maribor, Slovenia
Ability to deliver
36.1/40.020/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
40% Web Development100% JavaScript60% Other -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
37.2/40.017.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.