Top JavaScript Developers
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$5,000+$50 - $99 / hr2 - 9Warszawa, Poland
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Creaviso is an UX design company. Established in 2017, the firm is in Warszawa, Poland. Their services include UX/UI Design and Logo.
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$1,000+Undisclosed2 - 9
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Small IT strategy consulting company Belcore IT Solutions, is headquartered in Toledo District , Belize and Toledo District , Belize. Their services include IT strategy consulting and Cybersecurity.
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$1,000+< $25 / hr2 - 9
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TCER Company is a software development firm based in Santo Domingo Este, Dominican Republic. Their services include Custom Software Development and Enterprise App Modernization.
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$1,000+$100 - $149 / hr2 - 9Washington, DC
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Mukava is a Washington, District of Columbia-based web development firm. They offer Web Development and Web Design.
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$1,000+$25 - $49 / hr2 - 9Mansoura, Egypt
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IsmefyTech is a social media marketing firm. Their team is headquartered in Mansoura, Egypt. The company specializes in Social Media Marketing and Search Engine Optimization.
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$10,000+$25 - $49 / hr2 - 9
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In Mumbai, India, Peak Pro Advisors is a Business Consulting company. The team provides Business Consulting and Market Research.
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$10,000+Undisclosed2 - 9Leander, TX
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InteleXa is a SEO company. Established in 2024, the company is based in Leander, Texas. Their team focuses on Search Engine Optimization and cloud consulting & SI.
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$1,000+$25 - $49 / hr2 - 9
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Web Edge Digital is a Miami, Florida-based social media marketing company. They specialize in Social Media Marketing and Search Engine Optimization.
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$1,000+$50 - $99 / hr2 - 9
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Website development company Iokoda Technologies is headquartered in Watford, England. Their services include Web Development and Mobile App Development.
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$1,000+$50 - $99 / hr2 - 9Milton, GA
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NeuPrana Design is a web design company. Their small team is based in Milton, Georgia and provides Web Design and UX/UI Design. The company was established in 2024.
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$1,000+$25 - $49 / hr2 - 9
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Established in 2024, Popaya Technologies LLP is a mobile application development company. The company focuses on Mobile App Development and API Development.
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$1,000+$50 - $99 / hr2 - 9Łódź, Poland
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Web development firm Placeholder© is in and. Their services include Web Development and Web Design.
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$1,000+< $25 / hr2 - 9
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Veltify is a SEO services firm established in 2024. The company provides Search Engine Optimization and Web Design, and is small.
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$1,000+$25 - $49 / hr2 - 9
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Millennial Projects, a website development firm, was founded in 2022. They focuses on Web Development and Custom Software Development.
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$1,000+$25 - $49 / hr2 - 9
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Founded in 2024, Qami is a web design agency. The firm specializes in Web Design and UX/UI Design.
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$1,000+$25 - $49 / hr2 - 9
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Established in 2024, Edelweiss Agency is a website development company. The team focuses on Web Development and Branding.
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$1,000+< $25 / hr2 - 9
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Purifying Digital is a Digital Strategy company. Launched in 2022, the team provides Digital Strategy and Search Engine Optimization.
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$5,000+$50 - $99 / hr2 - 9Stralsund, Germany
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Orcas is a web development firm. Established in 2013, the team specializes in Web Development and Web Design. The firm is headquartered in Stralsund, Germany.
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$5,000+$50 - $99 / hr2 - 9Zagreb, Croatia
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Established in 2021, Marvin Agency is an UX design company. The firm focuses on UX/UI Design and Web Development, and is small.
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$1,000+< $25 / hr2 - 9
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Omer Odabas, a custom software development firm, was founded in 2023. The agency specializes in Custom Software Development and Web Development.
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$1,000+$50 - $99 / hr2 - 9
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Launched in 2016, Webraiser, a small web design agency, is in Warszawa, Poland. Their team specializes in Web Design and UX/UI Design.
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$1,000+$25 - $49 / hr2 - 9
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Inovaara Technologies, a Low/No Code Development company, was founded in 2025. They provides Low/No Code Development and Web Development.
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$5,000+$25 - $49 / hr2 - 9São Paulo, Brazil
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Skyward Technologies, a software development firm, specialize in Custom Software Development and Web Development. They were founded in 2024.
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$1,000+$150 - $199 / hr2 - 9
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Spectrum IT Consulting, a website development company, was founded in 2024. They offers Web Development and Custom Software Development.
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$25,000+$300+ / hr2 - 9Houston, TX
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B.iD LLC, a branding company, was launched in 2014. The firm offers Branding and Web Design.
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UndisclosedUndisclosed2 - 9Castiglione della Pescaia, Italy
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Bitwise is a web design company. Their small team is located in Castiglione della Pescaia, Italy. Their services include Web Design and IoT development.
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UndisclosedUndisclosed2 - 9Conway, AR
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Website development firm Bluegrass Media Inc specializes in Web Development and Mobile App Development. They were established in 2018.
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$1,000+$25 - $49 / hr2 - 9Breña, Peru
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APU Core is a web development company. They are located in Breña, Peru. Their team provides Web Development and Custom Software Development.
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UndisclosedUndisclosed2 - 9Vineyard, UT
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Dev By Design is a web design agency launched in 2018. The agency provides Web Design and UX/UI Design, and is small.
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$1,000+< $25 / hr2 - 9
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Established in 2021, WPPro Studio is a web design company and web development company. The company focuses on Web Design and Web Development.
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$1,000+< $25 / hr2 - 9Faisalabad, Pakistan
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LogicNosh is a website development company founded in 2020. Located in Faisalabad, Pakistan, the team focuses on Web Development and Custom Software Development.
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Undisclosed< $25 / hr2 - 9
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Established in 2023, Webengine is a small e-commerce development firm based in Dhaka, Bangladesh. Their team provides E-Commerce Development and Web Development.
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UndisclosedUndisclosed2 - 9
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Cyntex Solutions is a web development firm and web design company. The team focuses on Web Development and Web Design and is based in Jeddah, Saudi Arabia.
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$1,000+< $25 / hr2 - 9
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Inovashi is a Kurseong, India-based Digital Strategy company. Their services include Digital Strategy and Search Engine Optimization.
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$1,000+< $25 / hr2 - 9Wuppertal, Germany
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IT strategy consulting company Genesyx is in Wuppertal, Germany. They focus on IT strategy consulting and Custom Software Development and were founded in 2025.
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$1,000+$25 - $49 / hr2 - 9
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Established in 2024, Pixea is a Digital Strategy company. Their team focuses on Digital Strategy and Search Engine Optimization.
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$1,000+$25 - $49 / hr2 - 9Torreón, Mexico
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Established in 2022, Nomadak is a custom software development firm. The team offers Custom Software Development and Web Development and is located in Torreón, Mexico.
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$5,000+$25 - $49 / hr2 - 9
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Relianext is a SEO company. They offer Search Engine Optimization and Web Design and were established in 2025.
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$1,000+$50 - $99 / hr2 - 9Hertford, England
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Virtue Web Solutions is a website development company. They are in Hertford, England and have small team. They focus on Web Development and Web Design.
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$1,000+< $25 / hr2 - 9
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Bytehouse is a small Prishtina, Kosovo-based software development company. Their services include Custom Software Development and Web Development.
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$1,000+$25 - $49 / hr2 - 9
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100Crowns is a Kishoreganj, Bangladesh-based web design agency. The team offers Web Design and UX/UI Design.
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$1,000+$50 - $99 / hr2 - 9New York, NY
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SEO agency Empire State SEO was founded in 2026. Headquartered in New York, New York, the team focuses on Search Engine Optimization and Web Development.
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$5,000+< $25 / hr2 - 9
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Small web development company hyperyond Studio, is in Nanjing, China. The team offers Web Development and Custom Software Development.
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$10,000+$50 - $99 / hr2 - 9Oberhausbergen, France
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Esilab is a small branding company launched in 2012. Their team offers Branding and Web Design.
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$1,000+$25 - $49 / hr2 - 9Sylhet, Bangladesh
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MufaSys is a web development company. They are headquartered in Sylhet, Bangladesh, and their services include Web Development and Cybersecurity.
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$5,000+$50 - $99 / hr2 - 9Skierniewice, Poland
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Custom software development company Compri provides Custom Software Development and Web Development. They are headquartered in Skierniewice, Poland.
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Undisclosed< $25 / hr2 - 9
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Ntathu.net is a web development company established in 2025. The team focuses on Web Development and IT managed services.
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$1,000+< $25 / hr2 - 9Cairo, Egypt
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Founded in 2025, Nubalink is a small Cairo, Egypt-based custom software development firm. Their team offers Custom Software Development and Mobile App Development.
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$1,000+$50 - $99 / hr2 - 9
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Founded in 2007, Dazzlink is a web design agency and website development firm. The agency provides Web Design and Web Development.
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$1,000+< $25 / hr2 - 9Guwahati, India
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NIRVIAN is a web design company. Located in Guwahati, India, the agency was launched in 2025. Their team specializes in Web Design and Social Media Marketing.
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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.