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15 Best JavaScript Web Development Companies in the USA (2026)

15 Best JavaScript Web Development Companies in the USA (2026)

Objetivos que hemos alcanzado:

Aumento de los clientes adquiridos anualmente por la empresa estadounidense de desarrollo de software en 400%. *

Generó más de 50 oportunidades de negocio para un proveedor de servicios de arquitectura y diseño del Reino Unido. *

Reducción del coste por cliente potencial en más de 6 veces para una empresa holandesa de tecnología para eventos. *

Se contactó con 13 000 clientes potenciales y se generaron 400 oportunidades para Swiss Sports Tech Provider. *

Aumento de la tasa de conversión de una empresa ucraniana de TI en un 53,61 %. TP3T *

Aumento de los clientes adquiridos anualmente por la empresa estadounidense de desarrollo de software en 400%. *

Generó más de 50 oportunidades de negocio para un proveedor de servicios de arquitectura y diseño del Reino Unido. *

Reducción del coste por cliente potencial en más de 6 veces para una empresa holandesa de tecnología para eventos. *

Se contactó con 13 000 clientes potenciales y se generaron 400 oportunidades para Swiss Sports Tech Provider. *

Aumento de la tasa de conversión de una empresa ucraniana de TI en un 53,61 %. TP3T *

Aumento de los clientes adquiridos anualmente por la empresa estadounidense de desarrollo de software en 400%. *

Generó más de 50 oportunidades de negocio para un proveedor de servicios de arquitectura y diseño del Reino Unido. *

Reducción del coste por cliente potencial en más de 6 veces para una empresa holandesa de tecnología para eventos. *

Se contactó con 13 000 clientes potenciales y se generaron 400 oportunidades para Swiss Sports Tech Provider. *

Aumento de la tasa de conversión de una empresa ucraniana de TI en un 53,61 %. TP3T *

Aumento de los clientes adquiridos anualmente por la empresa estadounidense de desarrollo de software en 400%. *

Generó más de 50 oportunidades de negocio para un proveedor de servicios de arquitectura y diseño del Reino Unido. *

Reducción del coste por cliente potencial en más de 6 veces para una empresa holandesa de tecnología para eventos. *

Se contactó con 13 000 clientes potenciales y se generaron 400 oportunidades para Swiss Sports Tech Provider. *

Aumento de la tasa de conversión de una empresa ucraniana de TI en un 53,61 %. TP3T *

Aumento de los clientes adquiridos anualmente por la empresa estadounidense de desarrollo de software en 400%. *

Generó más de 50 oportunidades de negocio para un proveedor de servicios de arquitectura y diseño del Reino Unido. *

Reducción del coste por cliente potencial en más de 6 veces para una empresa holandesa de tecnología para eventos. *

Se contactó con 13 000 clientes potenciales y se generaron 400 oportunidades para Swiss Sports Tech Provider. *

Aumento de la tasa de conversión de una empresa ucraniana de TI en un 53,61 %. TP3T *

Aumento de los clientes adquiridos anualmente por la empresa estadounidense de desarrollo de software en 400%. *

Generó más de 50 oportunidades de negocio para un proveedor de servicios de arquitectura y diseño del Reino Unido. *

Reducción del coste por cliente potencial en más de 6 veces para una empresa holandesa de tecnología para eventos. *

Se contactó con 13 000 clientes potenciales y se generaron 400 oportunidades para Swiss Sports Tech Provider. *

Aumento de la tasa de conversión de una empresa ucraniana de TI en un 53,61 %. TP3T *

Resumen de IA Published: 29 Sep 2026

Co-Founder @ Lengreo

JavaScript web development companies support everything from interactive business websites and single-page applications to complex SaaS products and enterprise platforms. This list covers providers with relevant JavaScript expertise and a defensible connection to the U.S. market, with attention to React, Node.js, TypeScript, modern frameworks, full-stack delivery, and related web engineering capabilities.

1. LenGreo

Lengreo combines JavaScript web development with product design and broader digital growth services. Its development team works with React.js, Node.js, TypeScript, and Next.js on custom web applications, business platforms, subscription products, directories, landing pages, and API-connected systems.

Projects can cover discovery, wireframing, UX/UI, application engineering, QA, deployment, and later product improvements. This makes Lengreo relevant to U.S. businesses that want JavaScript development connected with product strategy, SEO, lead generation, or other commercial requirements instead of treating engineering as an isolated technical task.

Key Facts

Best for: B2B companies building custom JavaScript web products
Core services: JavaScript web development, custom web applications, API development, UX/UI, QA
Technologies: JavaScript, TypeScript, React.js, Node.js, Next.js
Project types: SaaS platforms, business applications, directories, landing pages
Market coverage: USA and international markets
Notable strength: Combining web engineering with B2B growth capabilities

Información de contacto

Sitio web: Lengreo.com
Teléfono: +31 686 147 566
Correo electrónico: [email protected]
LinkedIn: Lengreo
Instagram: @lengreo

Nuestros casos

Plataforma de suscripción para creadores

Plataforma de suscripción para creadores

Plataforma de directorio B2B

Plataforma de directorio B2B

PLATAFORMA LOGÍSTICA A MEDIDA

PLATAFORMA LOGÍSTICA A MEDIDA

2. ScienceSoft

2. ScienceSoft

ScienceSoft has a dedicated JavaScript development practice covering front-end, server-side, and full-stack applications. Its engineers work with React, Angular, Vue.js, Next.js, Node.js, Express.js, and related technologies for web portals, enterprise applications, SaaS products, and customer-facing platforms.

The company can handle architecture, development, integrations, testing, modernization, and long-term software evolution. Its headquarters in McKinney, Texas, gives U.S. organizations a domestic business presence while engineering resources are distributed internationally.

Key Facts

Best for: Complex enterprise JavaScript applications
Core services: JavaScript development, web applications, consulting, modernization
Technologies: JavaScript, React, Angular, Vue.js, Next.js, Node.js
Industries: Healthcare, financial services, retail, manufacturing
Location: McKinney, Texas
Notable strength: JavaScript engineering within larger enterprise software programs

Información de contacto

Sitio web: www.scnsoft.com
Correo electrónico: [email protected]
Facebook: www.facebook.com/sciencesoft.solutions
Twitter: x.com/ScienceSoft
LinkedIn: www.linkedin.com/company/sciencesoft
Dirección: 5900 S. Lake Forest Drive, Suite 300 McKinney, área de Dallas, TX-75070
Teléfono: +1 214 306 6837

3. Vention

3. Vention

Vention develops web applications and provides engineering teams for technology companies that need additional JavaScript capacity. Its capabilities cover React, Vue.js, Node.js, front-end development, API engineering, cloud systems, and full-stack product development.

The company works on new digital products as well as modernization and expansion of existing platforms. Engagements can range from individual engineering specialists to complete development teams. Its New York presence makes Vention relevant to U.S. businesses seeking international delivery resources with a domestic commercial base.

Key Facts

Best for: Technology companies expanding development capacity
Core services: Web applications, front-end development, APIs, dedicated teams
Technologies: JavaScript, React, Vue.js, Node.js
Project types: SaaS products, APIs, web platforms, modernization
Location: New York, New York
Notable strength: Flexible team extension and project delivery models

Información de contacto

Sitio web: ventionteams.com
Correo electrónico: [email protected]
Twitter: x.com/ventionteams
LinkedIn: www.linkedin.com/company/ventionteams
Instagram: www.instagram.com/ventionteams
Dirección: 575 Lexington Avenue, piso 14, Nueva York, NY 10022
Teléfono: +1 (718) 374-5043

4. Itransición

4. Itransition

Itransition handles JavaScript development across web applications, server-side software, APIs, and cross-platform products. Its engineering stack includes JavaScript, TypeScript, React, Angular, Vue.js, and Node.js, allowing teams to cover both browser interfaces and backend functionality.

The company works with organizations in healthcare, finance, retail, automotive, and other industries where web products may need integrations, security controls, testing, and long-term modernization. Itransition also provides dedicated engineers and full development teams for businesses that prefer to extend an existing technology organization.

Key Facts

Best for: Large and technically complex JavaScript projects
Core services: Web development, APIs, dedicated teams, application modernization
Technologies: JavaScript, TypeScript, React, Angular, Vue.js, Node.js
Industries: Healthcare, finance, retail, automotive
Location: Decatur, Georgia
Notable strength: Broad full-stack engineering capabilities

Información de contacto

Sitio web: www.itransition.com
Correo electrónico: [email protected]
Facebook: www.facebook.com/Itransition
Twitter: x.com/itransition
LinkedIn: www.linkedin.com/company/itransition
Address: 160 Clairemont Ave, Suite 200, GA 30030, Decatur, USA
Teléfono: +1 720 207 2820

5. A-Listware

5. A-Listware

A-Listware provides JavaScript engineering as part of its web application development and software outsourcing services. Its front-end practice covers React, Angular, Vue.js, Next.js, Meteor, and Ember, while Node.js can be used for server-side development.

The company also works on application architecture, API integrations, QA, modernization, cloud environments, and ongoing support. Businesses can use A-Listware for a complete web project or expand an existing engineering department with additional developers. Its U.S. presence in North Bergen, New Jersey, supports work with American clients.

Key Facts

Best for: Extended and dedicated web development teams
Core services: Front-end development, back-end development, QA, integrations, support
Technologies: JavaScript, TypeScript, React, Angular, Vue.js, Next.js, Node.js
Project types: Web applications, enterprise platforms, modernization
Location: North Bergen, New Jersey
Notable strength: Combining JavaScript development with team augmentation

Información de contacto

Página web: a-listware.com
Teléfono: +1 (888) 337 93 73
Correo electrónico: [email protected]
Dirección: North Bergen, NJ 07047, EE. UU.
LinkedIn: www.linkedin.com/company/a-listware
Facebook: www.facebook.com/alistware

6. Innowise

6. Innowise

Innowise works across front-end, back-end, and full-stack JavaScript development for custom software and web products. Relevant technologies include React, Next.js, Angular, Vue.js, Node.js, JavaScript, and TypeScript.

Projects can involve single-page applications, enterprise platforms, customer portals, API-driven software, interface modernization, or extensions to an existing development team. Cloud engineering, DevOps, data services, QA, and legacy modernization are available alongside application development, which is useful when the web layer forms part of a wider technology transformation.

Key Facts

Best for: Full-stack web products and application modernization
Core services: Web development, JavaScript development, cloud engineering, modernization
Technologies: React, Next.js, Angular, Vue.js, Node.js
Project types: SPAs, portals, enterprise platforms, API-based systems
U.S. presence: Operations in the United States
Notable strength: Broad technical coverage around core web engineering

Información de contacto

Sitio web: innowise.com
Correo electrónico: [email protected]
Twitter: x.com/innowisegroup
LinkedIn: www.linkedin.com/company/innowise-group
Address: 50 Franklin St, Office 203, MA 02110, Boston, USA
Teléfono: +1 917 267 7727

7. Itexus

7. Itexus

Itexus brings JavaScript web development into projects that frequently involve fintech, banking, payments, lending, investment, and other data-intensive products. Its engineers work with JavaScript and TypeScript technologies including React, Next.js, Node.js, and related frameworks.

Web projects can include dashboards, financial platforms, customer portals, integrations, and responsive browser-based applications. Itexus also covers discovery, UI/UX, cloud engineering, QA, cybersecurity, and ongoing support, giving clients access to roles beyond the core development team when building larger JavaScript products.

Key Facts

Best for: Fintech and data-intensive web applications
Core services: Web development, custom software, product discovery, QA, integrations
Technologies: JavaScript, TypeScript, React, Next.js, Node.js
Industries: Banking, payments, lending, wealth management, insurance
Location: Delaware, USA
Notable strength: JavaScript development for complex financial workflows

Información de contacto

Sitio web: itexus.com
Correo electrónico: [email protected]
Dirección: 8, The Green, STE Road, Dover, DE 19901, Estados Unidos
LinkedIn: www.linkedin.com/company/itexus
Facebook: www.facebook.com/itexus
Twitter: x.com/ItexusSoft
Instagram: www.instagram.com/itexus.soft

8. BairesDev

8. BairesDev

BairesDev provides JavaScript web development through nearshore engineering teams serving U.S. businesses. Its JavaScript ecosystem includes React, Angular, Vue.js, Next.js, Node.js, Express, TypeScript, and other front-end and server-side technologies.

The company works on custom web applications, APIs, SaaS platforms, enterprise systems, and modernization projects. Engagement models include staff augmentation, dedicated development teams, and complete software outsourcing. Its distributed engineering organization across the Americas is structured to provide working-hour overlap with U.S. product and technology teams.

Key Facts

Best for: Nearshore JavaScript development and team scaling
Core services: Web development, staff augmentation, full-stack development, APIs
Technologies: JavaScript, TypeScript, React, Angular, Vue.js, Node.js
Project types: SaaS platforms, web applications, APIs, enterprise software
Market coverage: United States with nearshore delivery across the Americas
Notable strength: Large-scale access to time-zone-aligned engineering talent

Información de contacto

Sitio web: www.bairesdev.com
Facebook: www.facebook.com/bairesdev
Twitter: x.com/bairesdev
Instagram: www.instagram.com/bairesdev
LinkedIn: www.linkedin.com/company/bairesdev
Dirección: 195 Montague Street, Nueva York, EE. UU.
Teléfono: +1 (408) 478-2739

9. SCAND

9. SCAND

SCAND supports JavaScript web projects with engineers working across React, Angular, Vue.js, Node.js, and TypeScript. Its development capabilities cover browser interfaces, backend services, APIs, enterprise web applications, and cross-platform products.

Clients can use the company for a new application, framework migration, existing codebase improvement, API integration, or access to dedicated developers. SCAND has a U.S. office in New York along with European development operations, making it relevant to American businesses using a distributed software development model.

Key Facts

Best for: Framework-specific JavaScript development
Core services: Web development, API development, dedicated developers, modernization
Technologies: JavaScript, TypeScript, React, Angular, Vue.js, Node.js
Project types: Enterprise applications, SPAs, APIs, cross-platform software
Location: New York, New York
Notable strength: Coverage across several established JavaScript frameworks

Información de contacto

Sitio web: scand.com
Correo electrónico: [email protected]
Facebook: www.facebook.com/ScandLtd
Twitter: x.com/ScandLtd
LinkedIn: www.linkedin.com/company/scand
Dirección: 136 Madison Ave, 6.ª planta, Nueva York, NY 10016, EE. UU.
Teléfono: +1 208 9005392

10. Simform

10. Simform

Simform develops custom software with JavaScript and TypeScript forming part of its web engineering capabilities. Its teams work with technologies such as React, Angular, and Node.js while combining application development with cloud engineering, DevOps, quality assurance, and product engineering.

The company is suited to larger web initiatives where frontend functionality needs to connect with backend systems, cloud infrastructure, data services, or mobile applications. Simform can deliver a complete product or work alongside an existing engineering department, providing flexibility as development requirements expand.

Key Facts

Best for: Product engineering and cloud-connected applications
Core services: Web applications, custom software, cloud engineering, DevOps
Technologies: JavaScript, TypeScript, React, Angular, Node.js
Project types: SaaS products, enterprise software, modernization
Location: Orlando, Florida
Notable strength: Connecting JavaScript engineering with cloud delivery

Información de contacto

Sitio web: www.simform.com
Facebook: www.facebook.com/simform
Twitter: x.com/simform
LinkedIn: www.linkedin.com/company/simform
Address: 111 North Orange Avenue, Suite 800, Orlando, Florida 32801, United States
Teléfono: 13212372727

11. Unified Infotech

11. Unified Infotech

Unified Infotech develops JavaScript-based web products while combining engineering with product strategy and UX/UI design. Its technology coverage includes React, Angular, Vue.js, Node.js, Next.js, JavaScript, and TypeScript for single-page applications, SaaS products, e-commerce systems, and other custom platforms.

The company can participate from early product discovery through design, engineering, testing, modernization, and support. Its New York presence gives U.S. businesses a domestic point of contact while development resources span a broader distributed team.

Key Facts

Best for: Design-led JavaScript web applications
Core services: Web development, UX/UI, SaaS development, maintenance, testing
Technologies: JavaScript, TypeScript, React, Angular, Vue.js, Node.js, Next.js
Industries: Fintech, healthcare, education, retail, SaaS
Location: New York, New York
Notable strength: Integrating product design and JavaScript engineering

Información de contacto

Sitio web: www.unifiedinfotech.net
Correo electrónico: [email protected]
Facebook: www.facebook.com/unifiedinfotech
Twitter: x.com/unified_infotec
LinkedIn: www.linkedin.com/company/unifiedinfotech
Instagram: www.instagram.com/unified.infotech
Address: 135 Madison Ave, New York, NY 10016
Tel: +1 201 761 9432

12. 21Century.Tech

12. 21Century.Tech

21Century.Tech is a Miami-based, remote-first software studio using a senior-led, AI-assisted engineering approach to accelerate web product delivery. Projects can start from a product specification, Figma design, early concept, or existing application and move through architecture, implementation, testing, documentation, CI/CD, and production deployment.

Its work includes MVPs, landing pages, full-stack features, third-party integrations, and legacy refactoring. This model is particularly relevant to startups and product teams that need JavaScript-oriented web development capacity for clearly scoped features or complete digital products without building a larger permanent engineering team.

Key Facts

Best for: Startups and product teams shipping web products quickly
Core services: MVP development, full-stack features, integrations, refactoring
Project types: Landing pages, web products, new features, existing product improvements
Delivery model: Senior-led, AI-assisted software engineering
Location: Miami, USA, with remote-first delivery
Notable strength: Short development cycles for clearly defined software work

Información de contacto

Página web: 21century.tech

13. GeekyAnts

13. GeekyAnts

GeekyAnts focuses heavily on JavaScript and TypeScript technologies used for modern web and cross-platform product development. Its technology offering includes React, Next.js, Node.js, NestJS, React Native, and related frameworks.

The company builds web applications, APIs, microservices, SaaS platforms, mobile products, and design systems. Services can cover new development, migration, maintenance, consulting, and dedicated engineering resources. Its U.S. presence in San Francisco makes GeekyAnts relevant to American product teams seeking framework-focused development combined with a distributed delivery organization.

Key Facts

Best for: React and full-stack JavaScript products
Core services: Web applications, APIs, microservices, consulting, mobile development
Technologies: JavaScript, TypeScript, React, Next.js, Node.js, NestJS
Project types: SaaS, consumer platforms, design systems, enterprise applications
Location: San Francisco, California
Notable strength: Concentrated expertise across the React ecosystem

Información de contacto

Sitio web: geekyants.com
Correo electrónico: [email protected]
Twitter: x.com/geekyants
LinkedIn: www.linkedin.com/company/geekyants-software-pvt-ltd
Instagram: www.instagram.com/geekyantsofficial
Address: 315 Montgomery Street, San Francisco, CA 94104, USA
Phone: +1-845-534-6825

14. Keyhole Software

14. Keyhole Software

Keyhole Software provides JavaScript consulting, modernization, and custom application development through U.S.-based engineering consultants. Its JavaScript practice covers React, Angular, Vue.js, Node.js, Express.js, and Next.js for single-page applications, enterprise software, backend systems, and modernized legacy platforms.

The company is especially relevant when a project requires domestic engineering resources rather than an offshore or nearshore delivery model. Its work can include architecture consulting, framework migration, performance improvements, APIs, microservices, cloud systems, and long-term application development.

Key Facts

Best for: Organizations requiring U.S.-based JavaScript engineers
Core services: Custom software, JavaScript consulting, modernization, API development
Technologies: JavaScript, React, Angular, Vue.js, Node.js, Express.js, Next.js
Industries: Financial services, insurance, healthcare, manufacturing, SaaS
Location: United States
Notable strength: U.S.-based senior software consultants

Información de contacto

Website: keyholesoftware.com
E-mail: [email protected]
Facebook: www.facebook.com/keyholesoftware
Twitter: x.com/keyholesoftware
LinkedIn: www.linkedin.com/company/keyhole-software
Instagram: www.instagram.com/keyholesoftware
Address: 11205 W 79th Street, Lenexa, KS 66214, USA
Phone: (877) 521-7769

15. Chetu

15. Chetu

Chetu provides custom software development and on-demand engineering resources from its U.S. operations. JavaScript-related services include React development, Node.js, front-end engineering, API integration, and full-stack application development.

Its development work spans industries such as healthcare, finance, insurance, hospitality, education, construction, and gaming. Companies can use Chetu for individual specialists or broader teams supported by project management and QA resources. The breadth of its technology and industry practices makes it relevant to established businesses integrating JavaScript applications with existing operational software.

Key Facts

Best for: Industry-specific business applications
Core services: Custom software, web development, APIs, dedicated developers
Technologies: JavaScript, React, Node.js, Bootstrap
Industries: Healthcare, finance, insurance, hospitality, education, gaming
Location: Sunrise, Florida
Notable strength: Large selection of technology and industry-focused development resources

Información de contacto

Sitio web: www.chetu.com
Correo electrónico: [email protected]
Facebook: www.facebook.com/ChetuInc
Twitter: x.com/ChetuInc
LinkedIn: www.linkedin.com/company/chetu-inc-
Address: 1500 Concord Terrace, Suite 100, Sunrise FL, 33323
Phone: (305) 614-2106

Conclusión

JavaScript web development companies in the USA support a wide range of projects, from responsive business websites and customer portals to SaaS platforms, enterprise applications, APIs, and complex full-stack systems. The right provider depends on the required technology stack, project complexity, delivery model, industry experience, and the amount of external engineering capacity needed.

Companies working with React, Node.js, Next.js, Angular, Vue.js, and TypeScript can support both new product development and modernization of existing applications. Before selecting a partner, businesses should compare relevant JavaScript expertise, similar project experience, team structure, communication model, and capabilities in QA, integrations, cloud infrastructure, and ongoing support.