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Published: Aug 26, 2026

17 Best Software Development Outsourcing Companies in USA (2026)

August 26, 2026
Read 13 min

A growing number of businesses turn to software development outsourcing companies based in the USA when they need extra help building their products. These companies take on custom software projects, mobile applications, and web platforms for clients that prefer working with a local partner.

The leading ones typically offer dedicated development teams, quality assurance, and long-term support after launch. Some specialize in certain tech stacks while others stay flexible across different industries. This setup lets companies get the work done without expanding their own staff too quickly.

1. Itexus

Itexus provides software development outsourcing for businesses in the USA, covering project-based software development and dedicated development arrangements. Our work can include software engineers, DevOps specialists, QA specialists, business analysts, project managers, and designers, depending on the software project requirements. We support businesses that need external software development resources without handling recruitment and related administrative tasks themselves.

Our software development outsourcing approach can cover a complete software project or specific development needs. We provide dedicated development, individual technical specialists, CTO support, and project-based software development as part of our outsourcing offering. We work with businesses in the USA that require external software development support for ongoing projects or specific development needs.

Key Highlights:

  • Software development outsourcing for businesses
  • Project-based software development
  • Dedicated development arrangements
  • Access to different software development roles
  • External support for software project requirements

Services:

  • Software development outsourcing
  • Dedicated software development
  • Project-based software development
  • Software developer augmentation
  • CTO as a service
  • DevOps development
  • Quality assurance
  • Business analysis

Contact Information:

2. Cognizant

Cognizant provides digital engineering. The company builds new digital applications and modernizes existing platforms. They use a delivery model that de-risks transformation. The agency addresses slow development cycles.

Cognizant provides hyper-personalized pods that keep enterprises technically evergreen. They accelerate delivery. The company improves experiences. The agency handles software product development. Cognizant covers legacy modernization. They focus on end-to-end digital engineering and application building. The company works to break cycles of fragmented architectures. The agency delivers work that stays technically current.

Key Highlights:

  • Builds new digital applications
  • Modernizes existing platforms
  • Uses a delivery model
  • Provides pods for ongoing work
  • Focuses on product development

Services:

  • Digital engineering
  • Software product development
  • Legacy modernization

Contact Information:

  • Website: www.cognizant.com
  • Phone: (480) 375-7000
  • Email: [email protected]
  • Address: 910 Wyoming Street, Missoula 59801, MT
  • LinkedIn: www.linkedin.com/company/cognizant
  • Facebook: www.facebook.com/Cognizant
  • Twitter: x.com/cognizant
  • Instagram: www.instagram.com/cognizant

3. Accenture

Accenture provides digital engineering and manufacturing. The company digitizes production and reinvents engineering operations. They support infrastructure and capital projects.

The agency handles digital engineering and research. Accenture covers connected products. The company manages assets. They work on automation. The agency offers engineering from prototyping and design to systems engineering, testing and validation. Accenture addresses aftermarket areas. The company works at the heart of products. They reinvent how production happens. The agency supports greater productivity in operations.

Key Highlights:

  • Digitizes production and operations
  • Supports infrastructure projects
  • Handles engineering and research
  • Covers connected products

Services:

  • Digital production
  • Engineering services
  • Infrastructure work
  • Product engineering
  • Asset management
  • Aftermarket support

Contact Information:

  • Website: www.accenture.com
  • Phone: +19174524400
  • Address: 395 9th Avenue, New York, NY, 10001

4. CGI

CGI provides application services. The company designs applications. They run and enhance them. The agency covers application management. CGI includes development work.

They handle modernization and rationalization. The company offers quality engineering. The agency addresses agility and efficiency. CGI simplifies the complexity of enterprise applications. They accommodate evolving demands. The company provides end-to-end application development, management and modernization. The agency boosts agility through its work. CGI enables better investment in transformation.

Key Highlights:

  • Designs applications
  • Runs application environments
  • Enhances existing applications
  • Covers management work
  • Handles modernization
  • Offers quality engineering

Services:

  • Application management
  • Application modernization
  • Quality engineering
  • Development work

Contact Information:

  • Website: www.cgi.com
  • Phone: +1 256-922-2400
  • Address: 4000 Market Street, Huntsville, 35808
  • LinkedIn: www.linkedin.com/company/cgi
  • Facebook: www.facebook.com/cgigroup
  • Twitter: x.com/cgi_global

5. IBM

IBM provides digital product design and engineering. The company transforms ideas into digital applications and platforms.

The agency covers product and platform definition, governance and strategy. IBM handles digital product delivery and enhancement. They design, develop and modernize digital systems. The company works on product-led transformation. The agency combines product design, management and engineering. IBM delivers tailored solutions that address business challenges. They turn ideas into product portfolios. The company focuses on application development capabilities. The agency helps build the right product in the right way.

Key Highlights:

  • Transforms ideas into applications
  • Builds platforms
  • Covers product strategy

Services:

  • Product definition
  • Digital product delivery
  • Application development
  • Platform work
  • Modernization

Contact Information:

  • Website: www.ibm.com
  • Phone: 1-800-426-4968 
  • Address: 1 New Orchard Road Armonk, New York 10504-1722 United States
  • LinkedIn: www.linkedin.com/company/ibm
  • Twitter: x.com/ibm
  • Instagram: www.instagram.com/ibm

6. BairesDev

BairesDev provides software development. The company offers staff augmentation. They assemble dedicated teams. The agency handles end-to-end outsourcing.

BairesDev covers custom application development. They include quality testing. The company provides design support. The agency works across the full development cycle. BairesDev supports projects at any stage. They fill skill gaps. The company takes ownership of execution from planning to deployment. The agency customizes every engagement. BairesDev works with senior engineers who integrate into existing teams.

Key Highlights:

  • Offers staff augmentation
  • Assembles dedicated teams
  • Handles full project work
  • Covers custom applications
  • Works across the development cycle

Services:

  • Custom app development
  • Staff augmentation
  • Dedicated teams
  • Quality testing

Contact Information:

  • Website: www.bairesdev.com
  • Phone: +1 (408) 478-2739
  • Address: 195 Montague Street, New York, USA
  • LinkedIn: www.linkedin.com/company/bairesdev
  • Facebook: www.facebook.com/bairesdev
  • Twitter: x.com/bairesdev
  • Instagram: www.instagram.com/bairesdev

7. Toptal

Toptal provides web application development. The company designs and builds applications that support rapid releases and long-term product growth. They deliver custom web applications that support complex workflows and adapt as products grow.

The agency handles web application architecture. Toptal works on enterprise web applications that power large-scale platforms. They develop full-stack web applications with integrated front-end and back-end systems. The company provides UX and UI design for improved navigation and usability. The agency ensures reliability through testing and quality assurance along with performance optimization. Toptal builds responsive front-end interfaces and secure back-end systems. They create progressive web applications and SaaS applications. The company connects web applications with APIs and systems. The agency maintains and optimizes applications with proactive monitoring and ongoing improvements.

Key Highlights:

  • Designs and builds web applications
  • Delivers custom web applications
  • Handles web application architecture

Services:

  • Custom web application development
  • Web application architecture
  • Full-stack web development
  • UX and UI design
  • Testing and QA

Contact Information:

  • Website: www.toptal.com
  • Phone: +1.888.867.7001
  • Email: [email protected]
  • Address: 2810 N. Church St #36879 Wilmington, DE 19802-4447
  • LinkedIn: www.linkedin.com/company/toptal
  • Facebook: www.facebook.com/toptal
  • Twitter: x.com/toptal
  • Instagram: www.instagram.com/toptal

8. ScienceSoft

ScienceSoft provides software development. The company delivers project success. They help organizations adapt and innovate.

The agency offers IT consulting. ScienceSoft handles application services. They provide testing and QA. The company works on data analytics. The agency covers help desk services. ScienceSoft offers infrastructure services. They handle cybersecurity services. The company redesigns processes. The agency builds custom solutions and integrates them with existing systems. ScienceSoft expands work from individual functions. They focus on reliable tailored solutions that improve the way businesses operate.

Key Highlights:

  • Provides software development
  • Offers IT consulting
  • Handles application services
  • Provides testing and QA

Services:

  • Software development
  • Application services
  • Testing and QA
  • IT consulting
  • Infrastructure services

Contact Information:

  • Website: www.scnsoft.com
  • Phone: +1 214 306 6837
  • Email: [email protected]
  • Address: 5900 S. Lake Forest Drive, Suite 300, McKinney, Dallas area, TX-75070
  • LinkedIn: www.linkedin.com/company/sciencesoft
  • Facebook: www.facebook.com/sciencesoft.solutions
  • Twitter: x.com/ScienceSoft

9. A-listware

A-listware provides IT outsourcing. The company offers customized IT outsourcing solutions. They reduce risks and increase flexibility.

The agency supports different cooperation models. A-listware brings in trained experts to supplement an in-house department. They work with an autonomous project team. The company outsources all information technology needs. The agency handles quality control and risk assessment. A-listware works on infrastructure management. They provide quality assurance. The company offers cybersecurity protocols. The agency makes it easy to move to the cloud and build cloud-based applications. A-listware plans and implements new IT projects. They support business operations and optimize IT operations.

Key Highlights:

  • Provides IT outsourcing
  • Offers customized solutions
  • Supports different cooperation models
  • Handles quality control

Services:

  • Infrastructure management
  • Quality assurance
  • Cybersecurity
  • Cloud services
  • IT support

Contact Information:

  • Website: a-listware.com
  • Phone: +1 (888) 337 93 73
  • Email: [email protected]
  • Address: North Bergen, NJ 07047, USA
  • LinkedIn: www.linkedin.com/company/a-listware
  • Facebook: www.facebook.com/alistware

10. Simform

Simform provides technology solutions. The company consults, engineers and designs. They address complex business challenges.

The agency works on product engineering. Simform embeds intelligence across products and workflows. They handle data engineering. The company migrates and modernizes cloud platforms. The agency connects enterprise platforms. Simform runs and improves applications and platforms. They offer managed services. The company builds and scales products. The agency focuses on engineering-focused work with technical expertise.

Key Highlights:

  • Consults and engineers solutions
  • Works on product engineering
  • Handles data engineering
  • Migrates and modernizes platforms

Services:

  • Product engineering
  • Data engineering
  • Cloud and platform engineering
  • Managed services
  • Digital product engineering

Contact Information:

  • Website: www.simform.com
  • Phone: 13212372727
  • Email: [email protected]
  • LinkedIn: www.linkedin.com/company/simform
  • Facebook: www.facebook.com/simform
  • Twitter: x.com/simform

11. Globant

Globant provides digital product engineering. The company delivers end-to-end solutions. They create interface design and scalable platforms.

The agency leverages approaches to redefine software development. Globant handles strategic architecture consulting. They craft tailored technology strategies and roadmaps. The company works on multi-experience solutions. The agency develops web solutions. Globant creates native mobile solutions. They handle cross-compiled solutions and hybrid mobile solutions. The company works on microservices. The agency manages APIs and integrations. Globant focuses on cloud native development.

Key Highlights:

  • Delivers end-to-end solutions
  • Handles strategic architecture consulting
  • Develops web solutions
  • Creates native mobile solutions
  • Works on microservices

Services:

  • Digital product engineering
  • Web solutions
  • Native mobile solutions
  • API management
  • Cloud native development

Contact Information:

  • Website: www.globant.com
  • Address: 251 Park Ave S, 11th floor, 10010, New York
  • Phone: +1 786-841-1898
  • E-mail: [email protected]
  • LinkedIn: www.linkedin.com/company/globant
  • Facebook: www.facebook.com/Globant
  • Instagram: www.instagram.com/globant

12. Thoughtworks

Thoughtworks provides software engineering services. The company helps transform engineering work. They modernize infrastructure.

The agency uncovers inefficiencies across the software delivery lifecycle. Thoughtworks integrates accelerators. They implement a continuous improvement model. The company connects strategy with execution. The agency measures friction points. Thoughtworks delivers lasting value. They focus on engineering excellence. The company works on engineering effectiveness. The agency supports platform engineering. Thoughtworks handles software engineering transformation.

Key Highlights:

  • Provides software engineering services
  • Helps transform engineering work
  • Modernizes infrastructure
  • Focuses on engineering excellence

Services:

  • Software engineering
  • Engineering effectiveness
  • Platform engineering
  • Software engineering transformation
  • Modernization

Contact Information:

  • Website: www.thoughtworks.com
  • Phone: +86 010 5602 1951
  • Email: [email protected]
  • Address: 200 E Randolph St, 25th Floor, Chicago, IL 60601-6501
  • LinkedIn: www.linkedin.com/company/thoughtworks
  • Facebook: www.facebook.com/Thoughtworks
  • Twitter: x.com/thoughtworks
  • Instagram: www.instagram.com/thoughtworks

13. 10Pearls

10Pearls provides software development outsourcing. The company builds innovative applications with full-stack work. They handle front-end, back-end and middleware integrations.

The agency offers new product development. 10Pearls works on security analysis. They streamline development with API-driven work. The company modernizes legacy software through rehosting, refactoring, rearchitecting or rebuilding. The agency optimizes user experience with interface architecture. 10Pearls helps migrate existing apps or build new cloud-native apps. They provide technical consulting. The company designs custom project roadmaps. The agency matches talent to project needs and uses flexible engagement models.

Key Highlights:

  • Provides software development outsourcing
  • Builds full-stack applications
  • Handles legacy modernization
  • Offers technical consulting

Services:

  • Full stack development
  • New product development
  • API-driven development
  • Legacy and app modernization
  • UX/UI design

Contact Information:

  • Website: 10pearls.com
  • Address: 8614 Westwood Center Dr, Ste 540 Vienna, VA 22182
  • Phone: +1 (703) 935-1919
  • Email: [email protected]
  • LinkedIn: www.linkedin.com/company/10pearls
  • Facebook: www.facebook.com/10Pearls
  • Twitter: x.com/TenPearls

14. Itransition

Itransition provides custom software development. The company develops tailored software solutions from scratch. They ensure scalability, flexibility, security and integration with existing environments.

The agency implements platform-based solutions. Itransition upgrades legacy systems. They extend functional scope and improve performance, usability and security. The company delivers enterprise software. The agency supports various business processes. Itransition works on application modernization. They assemble dedicated development teams. The company provides technology consulting. The agency handles web app development and mobile app development. Itransition offers cloud development.

Key Highlights:

  • Develops custom software from scratch
  • Implements platform-based solutions
  • Upgrades legacy systems
  • Assembles dedicated teams

Services:

  • Custom software development
  • Application modernization
  • Platform-based implementation
  • Dedicated development teams
  • Technology consulting

Contact Information:

  • Website: www.itransition.com
  • Phone: +1 720 207 2820
  • Email: [email protected]
  • Address: 160 Clairemont Ave, Suite 200, Decatur, GA 30030
  • LinkedIn: www.linkedin.com/company/itransition
  • Facebook: www.facebook.com/Itransition
  • Twitter: x.com/itransition

15. N-IX

N-IX provides software development. The company delivers software development services. They work on custom solutions.

The agency handles software engineering. N-IX focuses on development work. They support project delivery. The company offers related engineering services. The agency works across the development cycle. N-IX provides solutions tailored to business needs. They cover application work. The company assists with software projects. The agency delivers development support.

Key Highlights:

  • Provides software development
  • Delivers custom solutions
  • Handles software engineering

Services:

  • Software development
  • Custom solutions
  • Application work
  • Engineering services

Contact Information:

  • Website: www.n-ix.com
  • Phone: +17273415669
  • Email: [email protected]
  • Address: 4330 W Broward Boulevard Space P/Q, Plantation, FL 33317
  • LinkedIn: www.linkedin.com/company/n-ix
  • Facebook: www.facebook.com/N.iX.Company
  • Twitter: x.com/N_iX_Global

16. Onshore Outsourcing

Onshore Outsourcing provides software development. The company covers the entire lifecycle of application development. They handle software development and modernization of legacy systems.

The agency offers testing services. Onshore Outsourcing works on data modernization. They provide enterprise IT support. The company develops and integrates solutions. The agency delivers testing from functional to security work. Onshore Outsourcing transforms legacy data systems. They ensure ongoing management. The company uses a rural outsourcing approach. The agency supports GenAI adoption and integration alongside development work.

Key Highlights:

  • Covers the full application lifecycle
  • Handles software development
  • Modernizes legacy systems
  • Provides testing services
  • Works on data modernization

Services:

  • Software development
  • Legacy modernization
  • Testing and automation
  • Data modernization
  • Enterprise IT support

Contact Information:

  • Website: www.onshoreoutsourcing.com
  • Phone: (660) 395-7019
  • Email: [email protected]
  • LinkedIn: www.linkedin.com/company/onshore-outsourcing
  • Facebook: www.facebook.com/OnshoreOutsourcing
  • Twitter: x.com/onshoreusa
  • Instagram: www.instagram.com/onshoreusa

17. Intellectsoft

Intellectsoft provides tailored software development. The company designs and delivers software solutions and products. They work from initial concept to launch.

The agency builds mobile and web applications. Intellectsoft offers dedicated development teams. They create UI/UX and product design. The company handles data engineering and analytics. The agency provides QA testing and software validation. Intellectsoft ensures scalability and integration. They act as an extension of existing teams. The company focuses on full-cycle development. The agency delivers work across custom software and product development.

Key Highlights:

  • Designs and delivers custom software
  • Builds mobile and web applications
  • Offers dedicated development teams
  • Provides QA testing

Services:

  • Custom software and product development
  • Mobile and web app development
  • Dedicated development teams
  • UI/UX and product design
  • QA testing

Contact Information:

  • Website: www.intellectsoft.net
  • Phone: +1 (650) 233-6196
  • Email: [email protected]
  • Address: 500 Fashion Ave, Fl 8A, New York City, 10018, USA
  • LinkedIn: www.linkedin.com/company/intellectsoft
  • Facebook: www.facebook.com/Intellectsoft
  • Twitter: x.com/Intellectsoft

Conclusion

Picking a software development outsourcing partner in the USA is less about finding a perfect match and more about matching the actual work that needs doing. Some companies lean toward embedding extra developers into an existing team. Others prefer taking a project from start to finish. A few sit somewhere in between.

The range is wide. Dedicated teams, staff augmentation, full project ownership, modernization work, and ongoing support all show up in different combinations. What matters most is whether the company can stay aligned with timelines, communication style, and the level of involvement the business wants to keep.

It all comes down to the specifics of the project and how much control needs to stay in-house. The options are there. The right fit depends on those details more than anything else.

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