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), 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+$50 - $99 / hr2 - 9Randburg, South Africa
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TechnoDezi is a mobile application development firm. They focus on Mobile App Development and Web Development and were launched in 2017.
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UndisclosedUndisclosed2 - 9Town and Country, MO
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Becurity is a mobile application development company. The Town and Country, Missouri-based firm focuses on Mobile App Development and Web Development.
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UndisclosedUndisclosed2 - 9Toronto, Canada
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In Toronto, Canada and Ahmedabad, India, Weisetech Developers is a web design company. Launched in 2012, the team offers Web Design and UX/UI Design.
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UndisclosedUndisclosed2 - 9
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Launched in 2002, Site-Image is a small South Carolina-based web design company. Their services include Web Design and Web Development.
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UndisclosedUndisclosed2 - 9Glastonbury, CT
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Astrasnap Development LLC is a small Glastonbury, Connecticut-based SEO services firm. The team focuses on Search Engine Optimization and Web Design.
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UndisclosedUndisclosed2 - 9Beograd, Serbia
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Brainstorm Solutions LLC is a small social media marketing company launched in 2018. Their services include Social Media Marketing and Web Design.
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UndisclosedUndisclosed2 - 9Novi Sad, Serbia
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Founded in 2020, CloudCentric is a small branding firm. Their services include Branding and Social Media Marketing.
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UndisclosedUndisclosed2 - 9Washington, DC
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Launched in 2022, TwelveFifth, Inc. DBA Gurulabs, Inc is a small Washington, District of Columbia-based Market Research company. Their services include Market Research and Marketing Strategy.
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UndisclosedUndisclosed2 - 9
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AssignmentOverflow.com is a software development company. Located in Naples, Florida, their small team specializes in Custom Software Development and Web Development. The company was founded in
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UndisclosedUndisclosed2 - 9Newburgh, ME
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Acadia Services & Solutions, LLC is a website development company. They specialize in Web Development and API Development and were launched in 2007. The agency is based in Newburgh, Maine.
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UndisclosedUndisclosed2 - 9Gilbert, AZ
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Launched in 2012, NuWave Commerce is a small web design agency. Their services include Web Design and Web Development.
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UndisclosedUndisclosed2 - 9Los Gatos, CA
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Small user experience agency Aionis, is located in Los Gatos, California. Their services include UX/UI Design and Custom Software Development.
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UndisclosedUndisclosed2 - 9
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Made With Future is a web design agency based in Oklahoma , Oklahoma. They focus on Web Design and UX/UI Design and were established in 2014.
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UndisclosedUndisclosed2 - 9
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IDevelop Software Solutions is a small Lake Oswego, Oregon-based CRM consulting and SI company. Their services include CRM consulting and SI and Custom Software Development.
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UndisclosedUndisclosed2 - 9
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Bmgrd, a web development company, is located in Madison, Wisconsin. Their services include Web Development and Web Design.
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UndisclosedUndisclosed2 - 9Hibbing, MN
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Byers Media, a web development company, was established in 1995. The company focuses on Web Development and Branding, and is small.
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UndisclosedUndisclosed2 - 9
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Hunlink Recrutement is a Recruiting company founded in 2023. The small team specializes in Recruiting and Market Research.
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UndisclosedUndisclosed2 - 9New York, NY
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KitSoftSol is an user experience agency. They are located in New York, New York and have small team. Their team specializes in UX/UI Design and Custom Software Development.
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UndisclosedUndisclosed2 - 9Kharkiv, Ukraine
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Founded in 2016, Bigrise Agency is a Digital Strategy company. The company focuses on Digital Strategy and Social Media Marketing.
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UndisclosedUndisclosed2 - 9Limassol, Cyprus
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Located in Limassol, Cyprus, Nmore Group is a branding company. The team focuses on Branding and Web Design.
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UndisclosedUndisclosed2 - 9Mesa, AZ
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RAD Computers, an IT strategy consulting company, provide IT strategy consulting and Web Design. They were launched in 2012.
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UndisclosedUndisclosed2 - 9Bogotá, Colombia
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Silverlight Colombia, a cloud consulting & SI company, is headquartered in Bogotá, Colombia. Established in 2008, the team provides cloud consulting & SI and Web Development.
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UndisclosedUndisclosed2 - 9
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Teplokomfort IT Services is a CRM consulting and SI company. Established in 2015, their team specializes in CRM consulting and SI and Cybersecurity.
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$10,000+< $25 / hr50 - 249Jakarta, Indonesia
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See all 10 projectsDOT Indonesia is a web development company specializing in custom website development and web application development. The reviews reflect a 100% positive sentiment, highlighting their eagerness to learn and adapt, and their effective project management. Approximately 50% of reviewers appreciated their commitment to delivering projects on time and within budget.
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$1,000+$50 - $99 / hr50 - 249Los Angeles, CA
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See all 22 projectsALMAX Design and Development Agency specializes in Website Development, Web Design, and Custom Website Development services. The agency consistently receives positive reviews, with 100% of clients praising their timely delivery, strong project management, and excellent communication. Their work is characterized by simplicity and clarity, aligning designs with client values and objectives while providing great value for the cost.
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UndisclosedUndisclosedFreelancer
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See all 1 projectsOur mission is to provide innovative and high-quality software solutions that meet the needs of our clients and exceed their expectations. We strive to create value for our clients by delivering
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UndisclosedUndisclosedFreelancerPhiladelphia, PA
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Sean Brodbeck is a branding company. Their small team is based in Philadelphia, Pennsylvania. Their services include Branding and Graphic Design.
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UndisclosedUndisclosedFreelancer
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Tom Yates is an application development firm and website development company. The company is located in Manchester, England. Their team specializes in Mobile App Development and Web Development.
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UndisclosedUndisclosedFreelancer
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Caterina Cirri Web Design e Grafica editoriale, a small web design agency, is headquartered in Firenze, Italy. Their services include Web Design and Web Development.
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UndisclosedUndisclosedFreelancerBogotá, Colombia
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Launched in 2006, Gabriel Parra (Gabitron) is a web design agency. The agency offers Web Design and Web Development, and is small.
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UndisclosedUndisclosed50 - 249Caracas, Venezuela
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Manapro Consultores is a cloud consulting & SI company established in 1975. Based in Caracas, Venezuela, the team specializes in cloud consulting & SI and CRM consulting and SI.
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UndisclosedUndisclosedFreelancer
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Established in 2011, Marco Loprieno is a small Modugno, Italy-based SEO company. Their services include Search Engine Optimization and Social Media Marketing.
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UndisclosedUndisclosedFreelancer
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Small web design company Future Services, is located in Molfetta, Italy. The team offers Web Design and Advertising.
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UndisclosedUndisclosedFreelancer
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FRANCISCOMESA is a SEO agency founded in 2016. Located in Medellin, Colombia, the team offers Search Engine Optimization and Web Design.
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UndisclosedUndisclosedFreelancerTychy, Poland
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Small web design agency Michaelsoft, is located in Tychy, Poland. Their services include Web Design and Web Development.
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UndisclosedUndisclosedFreelancerLittle Rock, AR
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Talent Techies is a small Little Rock, Arkansas-based IT strategy consulting company. The team offers IT strategy consulting and BI & big data consulting & SI.
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UndisclosedUndisclosedFreelancer
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J.T.S. Design, Inc. Is a web design agency. Their team is in Ulster Park, New York. The company offers Web Design and Web Development.
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UndisclosedUndisclosedFreelancerBridlington, England
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RelyWP is a small website development company. Launched in 2019, the team specializes in Web Development and Cybersecurity.
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UndisclosedUndisclosedFreelancer
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MHR Tech, a web development company, was established in 2023. The agency provides Web Development and Mobile App Development, and is small.
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UndisclosedUndisclosed50 - 249Surat, India
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App development company Codezee Solutions Private Limited is located in Surat, India. They specialize in Mobile App Development and UX/UI Design and were founded in 2008.
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$5,000+$25 - $49 / hr50 - 249
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Monterium is a website development company. The Kyiv, Ukraine-based agency was established in 2022. Their services include Web Development and DevOps Managed Services.
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UndisclosedUndisclosed50 - 249Toronto, Canada
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SmashCloud is an user experience company. Their midsize team of employees is located in Toronto, Canada and Lahore, Pakistan. Their team offers UX/UI Design and Custom Software Development.
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UndisclosedUndisclosedFreelancerRaleigh, NC
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That Digital Dude is a Conversion Optimization company. The small Raleigh, North Carolina-based team offers Conversion Optimization and Search Engine Optimization. The agency was founded in 2019.
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UndisclosedUndisclosedFreelancerMuttenz, Switzerland
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Branding agency Marketing With Singh is based in Muttenz, Switzerland. The team focuses on Branding and Marketing Strategy.
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UndisclosedUndisclosedFreelancer
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Bhroovi Gupta is an user experience design agency. The New HYork, New York-based agency was launched in 2024. Their services include UX/UI Design and Product Design.
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UndisclosedUndisclosedFreelancer
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Small web design agency Dariusz Wegrzyn, is headquartered in Toronto, Canada. Their services include Web Design and UX/UI Design.
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UndisclosedUndisclosedFreelancer
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Launched in 2011, George Psarris is a small London, England-based user experience agency. Their services include UX/UI Design and Product Design.
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UndisclosedUndisclosedFreelancer
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Katherine Le is a Hanoi, Vietnam-based branding company. Their services include Branding and Web Design.
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UndisclosedUndisclosedFreelancer
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Small SEO agency MH Web Development, is based in Charleston, Illinois. Their services include Search Engine Optimization and Web Design.
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UndisclosedUndisclosedFreelancerFormby, England
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Pearmantra Innovations Digital Marketing Agency is a branding company. They were established in 2020, and their services include Branding and Social Media Marketing.
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At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
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We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
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- Market presence
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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
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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+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
39.5/40.019.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$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 -
$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
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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.