Top JavaScript Development Companies in USA

JavaScript powers dynamic and interactive websites, but mastering it requires expertise and the right developer. Finding a reliable partner can be challenging. SelectedFirms lists the Top JavaScript Development Companies in USA, ensuring you connect with experienced JavaScript developers who can deliver responsive and engaging web applications, enhancing functionality and user experience.
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4.9 out of 5, based on 1675 real reviews.
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Explore Reviewed JavaScript Development Companies in the USA — Find Skilled JavaScript Developers for Your Project

Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.

1058 Companies

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SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 10% Web Development

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Software Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% Digital Transformation

  • 10% CMS

  • 10% Blockchain Development

  • 5% Internet of Things

  • 5% Product Engineering services

Committed For Better Future With Digital Revolution

FTx Infotech is a fast-growing mobile app and web development company delivering high-quality, scalable digital solutions for businesses worldwide. Since 2019, we have successfully built and launched 100+ native and cross-platform applications, including top-performing iOS and Android apps featured among leading downloads on major app stores. More than just a development vendor, we act as a strategic technology partner—combining software engineering, product consulting, and digital marketing expertise to help clients identify risks, unlock opportunities, and achieve long-term growth. Our team specializes in Android, iOS, hybrid, and cross-platform app development, along with open-source solutions and custom software development. Headquartered in Rock Hill, NY, with global offices and a team of 120+ experts, we also provide Salesforce development, cloud computing, and industry-specific solutions. FTx Infotech empowers businesses with innovative, user-centric applications built for performance, scalability, and market success.

View FTx InfoTech Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

Rock Hill, USA

Location

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% Web Development

  • 20% Mobile App Development

  • 10% Software Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% IT Services

  • 10% Artificial Intelligence

  • 10% Ecommerce Development

  • 10% CMS

Accelerating Your Business Growth with Cutting-Edge Digital Business Solutions

TGI is a fast-growing mobile app and custom software development company delivering end-to-end digital solutions for global businesses. Established in 2007 as part of a U.S.-based organization, TGI has evolved into a trusted technology partner, helping companies transform ideas into scalable, high-performance products. Our services include custom software development, web development, iOS and Android app development, SEO, and ongoing support. We build and maintain platforms used by millions of users worldwide, ensuring reliability, security, and seamless performance. With a strong focus on innovation, quality, and customer satisfaction, TGI provides a one-stop solution for businesses seeking efficient, future-ready technology and long-term digital growth.

View TGI Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

Acton, USA

Location

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% Web Development

  • 60% Artificial Intelligence

  • 10% Mobile App Development

  • 10% IT Services

  • 10% Product Engineering services

Agile Software Product Engineering and Team Scaling

Stride Consulting LLC is an elite custom software engineering firm that helps enterprise organizations and high-growth technology companies build exceptional software products through co-located agile development and embedded technical advisory. The agency specializes in continuous product engineering, rapid high-fidelity prototyping, and complex system modernization, working side-by-side with a client's internal engineering teams to elevate code quality and accelerate time-to-market. Their senior full-stack development teams possess deep competencies across cloud-native architectures, microservices configurations, and comprehensive automated test-driven development (TDD) frameworks. Stride places strong emphasis on establishing mature software development life cycles, eliminating technical debt, and implementing scalable engineering practices directly within the client's internal ecosystem. This unique collaborative framework ensures that from initial technical proof-of-concept validation to full enterprise-grade product launch, systems are engineered for peak performance, robust security compliance, and effortless ongoing adaptability.

View Stride Consulting Profile
Inside Service Listing

$150-$199/hr

Hourly Rate
Inside Service Listing

$50,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

New York, USA

Location

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% Web Development

  • 50% Software Development

  • 10% Mobile App Development

  • 10% Web Design

  • 10% Product Engineering services

  • 10% Cloud Computing Services

Engineering your Product Ideas to Reality.

Signitives Technologies LLC is a software product engineering firm offering a comprehensive suite of services spanning the complete product lifecycle—from ideation and design through development, testing, and validation in web and mobile ecosystems. The company specializes in mobile application development, software quality assurance, security testing, and test automation, leveraging industry-proven Agile frameworks to ensure efficient, risk-mitigated delivery. Signitives serves as an extended technical partner for businesses bringing new digital products to market, handling everything from POC and MVP builds to full-scale application development. With expert engineers skilled in both functional and non-functional testing, Signitives helps clients reduce time-to-market while maintaining the highest standards of reliability and performance.

View Signitives technologies llc Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

Irving, USA

Location

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% Web Development

  • 70% Digital Marketing

  • 10% Web Design

  • 10% CMS

Internet agency specializing in search marketing

Subliminal Pixels Lab is a creative technology agency specializing in the intersection of design and digital innovation, delivering visually compelling and strategically driven digital experiences. The agency provides services spanning UI/UX design, web development, branding, digital marketing, and creative direction, helping businesses communicate their value propositions through powerful visual storytelling and purposeful design. Subliminal Pixels Lab's team of designers and developers approaches each project with a focus on user psychology and brand impact, creating digital solutions that engage audiences on a subconscious level and drive meaningful business outcomes. The agency serves clients across diverse industries seeking a sophisticated creative partner with the technical capabilities to bring ambitious digital visions to life.

View Subliminal Pixels Lab Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

2 - 9

Team size
Inside Service Listing

Miami, USA

Location

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% Web Development

  • 50% Digital Marketing

  • 20% Mobile App Development

  • 10% Web Design

  • 10% Software Development

Finally Get The Results You've Been Looking For

Central Florida Media Solutions (CFLMS) is a premier full-service digital marketing and design agency based in Central Florida, helping local and regional businesses build stronger online presences and achieve their growth objectives. The agency offers website design, SEO, social media management, and digital advertising services tailored to the unique needs of each client. With a strategic focus on improving search engine rankings and brand recognition, CFLMS serves businesses of all sizes across the Orlando metro and surrounding areas. The team's hands-on approach and in-depth understanding of the Central Florida market make them a trusted partner for businesses seeking customized digital solutions that drive real results.

View Central Florida Media Solutions Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

Orlando, USA

Location

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% Web Development

  • 60% Ecommerce Development

  • 20% IT Services

  • 10% Artificial Intelligence

AI that actually works inside your business

KCG (Krukovsky Consulting Group) is a Brooklyn-based IT staff augmentation and e-commerce consulting firm with over 12 years of experience connecting businesses with top-tier technology talent from Eastern and Central Europe. The company maintains a database of 12,000+ vetted IT professionals spanning all major skill levels and expertise domains, with candidate profiles available within 24 hours of initial contact. KCG specializes in building remote software development teams, establishing remote competence centers, and consulting on e-commerce architecture, retail digital transformation, and complex system integrations. Operating across the US and EMEA, KCG is known for direct client engagement without intermediaries, cost-efficient pricing, and long-term relationship-first partnerships.

View KCG Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

St. Petersburg, USA

Location

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% Web Development

  • 20% Internet of Things

  • 20% Software Development

  • 20% IT Services

  • 20% Mobile App Development

  • 10% Web Design

Etymology: Latin, literally, from the egg: from the beginning

Ab Ovo, Inc. is a Santa Clara, California-based IT consulting and staff augmentation firm founded in 2006, providing technology and operations solutions to Global 1000 companies. As a woman- and minority-owned business, Ab Ovo specializes in e-commerce platforms, cloud enablement, IoT, big data, business intelligence, automation testing, and enterprise application development and integration. The firm combines deep technical expertise with an understanding of client industries to solve complex business challenges with speed and agility. Ab Ovo's staff augmentation and software engineering services help organizations quickly scale technical teams while maintaining quality and adaptability to evolving business needs. With operations extending to the UK and India, the company supports clients across automotive, energy, eCommerce, financial services, manufacturing, medical, and retail sectors. Ab Ovo's productized applications and platforms are designed to accelerate digital transformation initiatives, making the company a reliable technology partner for enterprises seeking flexible, innovation-driven IT services and skilled technical talent.

View Ab Ovo, Inc. Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

Santa Clara, USA

Location
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