Top JavaScript Developers
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UndisclosedUndisclosed2 - 9Ciudad de Guatemala, Guatemala
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Aplicaciones Web is an e-commerce development firm. They offer E-Commerce Development and Mobile App Development and were founded in 2000.
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UndisclosedUndisclosed2 - 9East Perth, Australia
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Prime IT Solutions Pty Ltd is an IT managed services company located in East Perth, Australia. They focus on IT managed services and Cybersecurity and were launched in 2016.
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UndisclosedUndisclosed2 - 9Budapest, Hungary
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Headquartered in Budapest, Hungary, ExpatTech is a small IT managed services company. The team specializes in IT managed services and Web Development.
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UndisclosedUndisclosed2 - 9Blacktown, Australia
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SUPA Web Solutions is a website development firm located in Blacktown, Australia. The team focuses on Web Development and Graphic Design.
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UndisclosedUndisclosed2 - 9Doral, FL
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SDH Interactive is a small Email Marketing company. Established in 2009, the team offers Email Marketing and Search Engine Optimization.
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UndisclosedUndisclosed2 - 9
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Rockdown is a website development company. Their small team is in Boston, Massachusetts. Their team focuses on Web Development and Search Engine Optimization.
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UndisclosedUndisclosed2 - 9Woodbridge, VA
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Matsuda & Associates, Inc. Is an IT managed services company. Their small team of employees is in Woodbridge, Virginia. Their team focuses on IT managed services and Web Development.
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UndisclosedUndisclosed2 - 9Bluffton, SC
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The WebRite Group is a Content Writing Services company established in 2018. The team provides Content Writing Services and Social Media Marketing and is located in Bluffton, South Carolina.
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UndisclosedUndisclosed2 - 9Karachi, Pakistan
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Cogent Devs, a SEO company, was established in 2018. Located in Karachi, Pakistan, the team focuses on Search Engine Optimization and Custom Software Development.
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UndisclosedUndisclosed2 - 9
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Stars IT Developer (Pvt) Ltd. Is a social media marketing agency. The company is based in Lahore, Pakistan. Their team offers Social Media Marketing and CRM consulting and SI.
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UndisclosedUndisclosed2 - 9Szczecin, Poland
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Email Marketing company Dotfusion Sp. Z o.o. Was established in 2010. The small team provides Email Marketing and Search Engine Optimization.
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UndisclosedUndisclosed2 - 9
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Hopes Solution is a SEO services firm. Their small team is based in Abbottabad, Pakistan. Their services include Search Engine Optimization and Video Production.
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Undisclosed$25 - $49 / hr2 - 9
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Located in Razlog, Bulgaria, Digital Developments Ltd is a small custom software development company. Their services include Custom Software Development and Web Development.
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$5,000+$50 - $99 / hr2 - 9
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Malama Online Marketing, LLC is a small SEO services firm. They specialize in Search Engine Optimization and Pay Per Click and were founded in 2010.
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$25,000+$100 - $149 / hr2 - 9London, England
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Software development firm fusecup.co was established in 2022. The team provides Custom Software Development and Web Design.
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$5,000+$25 - $49 / hr2 - 9
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Web design agency Skylarc is headquartered in Lahore, Pakistan. Their services include Web Design and Low/No Code Development.
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UndisclosedUndisclosed2 - 9Bangkok, Thailand
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Twin Synergy Co., Ltd. Is a web design company. Founded in 2012, the firm specializes in Web Design and Custom Software Development.
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$1,000+$25 - $49 / hr2 - 9
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Pixel Pinnacle is a Market Research company established in 2020. In London, England and Ibadan, Nigeria, the team specializes in Market Research and Digital Strategy.
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UndisclosedUndisclosed2 - 9Aurora, OH
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GR8 Design Solutions is a software development company. They offer Custom Software Development and Web Development and were founded in 2012.
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UndisclosedUndisclosed2 - 9Baltimore, MD
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Software development firm TechSlice, LLC is located in Baltimore, Maryland. They specialize in Custom Software Development and Web Development and were founded in 2018.
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Undisclosed< $25 / hr2 - 9
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Akanila Technologies Pvt Ltd is a small website development company established in 2023. Their team specializes in Web Development and Logo.
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$1,000+$50 - $99 / hr2 - 9Roma, Italy
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NOCODEPRO, a web design company, was established in 2023. The agency specializes in Web Design and Web Development, and is small.
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UndisclosedUndisclosed2 - 9Marietta, GA
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Cloud consulting & SI company BLUEVISION LLC is located in Marietta, Georgia. They focus on cloud consulting & SI and Custom Software Development and were established in 2001.
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UndisclosedUndisclosed2 - 9New York, NY
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Div Digital is a social media marketing company. They were launched in 2016, and their services include Social Media Marketing and Search Engine Optimization.
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UndisclosedUndisclosed2 - 9
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DevXT is a small software development company launched in 2006. Their team specializes in Custom Software Development and Web Development.
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UndisclosedUndisclosed2 - 9St. George, UT
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Conglomo Labs, Inc. Is a St. George, Utah-based branding agency. The team specializes in Branding and Pay Per Click.
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UndisclosedUndisclosed2 - 9New York, NY
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6PS Group, LLC is a New York, New York-based website development firm. Their services include Web Development and Mobile App Development.
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Undisclosed$25 - $49 / hr2 - 9
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Founded in 2018, kodestudio is a small software development company. Their team focuses on Custom Software Development and Web Development.
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$1,000+$50 - $99 / hr2 - 9
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Codres Sp. Z o.o. Is a Rzeszów, Poland-based web development firm. They specialize in Web Development and E-Commerce Development.
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UndisclosedUndisclosed2 - 9Santa Fe, NM
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Odza Consults is a social media marketing agency. They are in Santa Fe, New Mexico, and their services include Social Media Marketing and Email Marketing.
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$5,000+$25 - $49 / hr2 - 9Indore, India
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Launched in 2016, Graspcorn Software Solution Pvt. Ltd. Is a website development firm. Their services include Web Development and Custom Software Development.
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$5,000+$50 - $99 / hr2 - 9
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Avantry is an API Development company. Based in Saint Helier, Jersey and Madeira, Portugal, the firm was launched in 2019. Their team offers API Development and Custom Software Development.
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$5,000+< $25 / hr2 - 9
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Wigi Softwares is a Lagos, Nigeria-based website development firm. Founded in 2018, the team focuses on Web Development and Mobile App Development.
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$10,000+$50 - $99 / hr2 - 9
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SEO agency D3X Designs was founded in 2016. The agency specializes in Search Engine Optimization and Web Development.
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UndisclosedUndisclosed2 - 9
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Launched in 2019, COLLABA.dev, a small UX design agency, is headquartered in Kyiv, Ukraine. Their team offers UX/UI Design and BI & big data consulting & SI.
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$1,000+$50 - $99 / hr2 - 9Varna, Bulgaria
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Founded in 2020, Websycraft is a custom software development firm. The team provides Custom Software Development and Web Development and is based in Varna, Bulgaria and Wien, Austria.
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$1,000+$25 - $49 / hr2 - 9Karachi, Pakistan
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Code Virtuoso is a web design agency. Headquartered in Karachi, Pakistan, the team provides Web Design and UX/UI Design.
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$1,000+$50 - $99 / hr2 - 9Bhopal, India
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Branding agency Help To Grow You was founded in 2024. Headquartered in Bhopal, India, the team specializes in Branding and Marketing Strategy.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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UV Infotech is an e-commerce development company. Their team is based in Remote, Oregon and Ahmedabad, India and provides E-Commerce Development and UX/UI Design.
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Undisclosed< $25 / hr2 - 9
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Located in Noida, India, APPSOLWORLD CONSULTING SERVICES (OPC) PRIVATE LIMITED is an ERP consulting and SI company. The team focuses on ERP consulting and SI and cloud consulting & SI.
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$1,000+$50 - $99 / hr2 - 9Boston, MA
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Located in Boston, Massachusetts, Bostoneo Solutions is a SEO services firm. The team focuses on Search Engine Optimization and Web Design.
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Undisclosed$25 - $49 / hr2 - 9
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Founded in 2022, 0xDanielimad, a small web design company, is located in Mount Liban, Lebanon and Dubai, United Arab Emirates. Their services include Web Design and Web Development.
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UndisclosedUndisclosed2 - 9Noida, India
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Codify Brain is a branding firm founded in 2020. The firm provides Branding and Web Development.
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Undisclosed$25 - $49 / hr2 - 9
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CenoDigtial is a branding firm founded in 2018. Their team provides Branding and Social Media Marketing.
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$10,000+$100 - $149 / hr2 - 9
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Launched in 2022, W3r.one is a small web development firm. Their services include Web Development and Mobile App Development.
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Undisclosed< $25 / hr2 - 9Pune, India
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Founded in 2020, ITDevHub Technologies, a small custom software development company, is in Pune, India. Their team provides Custom Software Development and Web Development.
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$1,000+< $25 / hr2 - 9Jaipur, India
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Established in 2021, Neo IT Solution is a web design company. The small team focuses on Web Design and UX/UI Design.
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$1,000+$100 - $149 / hr2 - 9EDINBURGH, Scotland
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Understated Consulting is a website development firm. They are based in EDINBURGH, Scotland, and their services include Web Development and Custom Software Development.
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UndisclosedUndisclosed2 - 9
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Small web design agency UPFLOW, is in. The team provides Web Design and Web Development.
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$1,000+$50 - $99 / hr2 - 9
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Codekings is a small web development firm established in 2023. Their services include Web Development and Mobile App Development.
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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.