Custom Software Development Outsourcing Companies in the USA

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    Targets we’ve achieved:
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    AI Summary
    Max Mykal
    Co-Founder @ Lengreo

      Outsourcing custom software development isn’t just about saving money or filling gaps in your in-house team. It’s about finding the right people who actually get what you’re trying to build – and can help make it happen. In the U.S., there are companies that specialize in this kind of partnership, working closely with clients to develop tools, platforms, and systems tailored to specific business needs.

      In this article, we’re taking a closer look at companies that offer outsourced custom development services in the USA. We’re not just listing names – we’re breaking down what these teams actually do, how they work, and what kind of projects they’re built for. Whether you’re starting from scratch or scaling an existing product, understanding your options can help you make smarter decisions about who to work with.

      1. Lengreo

      1. Lengreo

      Lengreo offers outsourced custom software development services through its USA branch, working closely with B2B clients to improve their digital processes. Rather than relying on pre-made solutions, they tailor their approach to each company’s unique needs. They often operate like an extension of the internal team, helping clients define long-term digital strategies alongside producing software.

      Their offerings include building web platforms and landing pages, implementing SEO and paid ad campaigns, and running demand generation initiatives like email and LinkedIn outreach. By blending marketing execution with development support, they aim to help clients connect more effectively with their target audiences and operate more efficiently.

      Key Highlights:

      • Offers custom software outsourcing in USA
      • Tailors solutions based on individual client needs
      • Close collaboration with internal teams
      • Combines strategy and execution services
      • In-person meetings available via Central Europe offices

      Services:

      • SEO and website optimization
      • Website and landing page development
      • Pay-per-click and paid ad campaigns
      • Email and LinkedIn lead outreach
      • Demand generation planning
      • Social media and content marketing

      Contacts:

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      2. BairesDev

      2. BairesDev

      BairesDev provides end-to-end software development outsourcing for companies across the USA. Their team handles all phases of the development lifecycle – from defining the requirements to design, development, and testing. They’re often engaged when clients need to scale quickly or take on large software projects that exceed internal capacity.

      With a large staff of experienced developers, they aim to start projects on short notice and keep communication channels open during collaboration. Their services suit a range of software types, from SaaS platforms to ecommerce systems or custom internal tools.

      Key Highlights:

      • Full lifecycle software outsourcing
      • Ability to start projects quickly
      • Large pool of technical professionals
      • Real-time collaboration and communication
      • Supports diverse project types

      Services:

      • Project planning and requirement analysis
      • UI/UX design and architecture
      • Custom software development
      • Testing and QA
      • Ongoing support and maintenance

      Contacts:

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

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        3. Bilberrry

        3. Bilberrry

        Bilberrry operates from Seattle and offers custom software outsourcing with a strong focus on digital products and ecommerce platforms. They prioritize understanding the client’s goals before jumping into development, ensuring strategic alignment from the start.

        They specialize in modern development techniques like headless commerce and work with frameworks like React, Next.js, Angular, and Python. Bilberrry’s typical projects include building web-or mobile-based systems tied to ecommerce or internal workflows, supported by a strategy-led approach to system design.

        Key Highlights:

        • Seattle-based digital product and ecommerce focus
        • Strategy-led planning before development
        • Expertise in headless commerce and modern frameworks
        • Custom app development for web and mobile
        • Suited for businesses needing thoughtful architecture

        Services:

        • Web and mobile app development
        • Headless ecommerce solutions
        • Digital product strategy and tech architecture
        • UX research and design
        • Brand identity and interface design

        Contacts:

        • Website: bilberrry.com
        • E-mail: info@bilberrry.com
        • Address: 600 1st Ave, Suite 413 Seattle, WA 98104
        • Phone: +1 206 818-7436
        4. Saigon Technology

        4. Saigon Technology

        Saigon Technology offers offshore custom software development services for U.S. clients, with more than a decade of experience in supporting American businesses. They follow a detailed development process – from discovery and planning to deployment and long-term maintenance.

        Their expertise spans web and mobile apps, SaaS platforms, AI development, QA testing, MVP launches, and DevOps services. They often deliver cost-effective solutions by combining offshore execution with U.S.-based collaboration and project oversight.

        Key Highlights:

        • Offshore development for U.S. enterprise clients
        • Well-defined and step-by-step delivery process
        • Broad services that include AI and SaaS development
        • Emphasis on testing, deployment, and maintenance
        • Flexible engagement models from MVP to full-scale projects

        Services:

        • Offshore software development
        • Web and mobile application development
        • MVP and PoC implementation
        • AI development and machine learning services
        • Quality assurance and DevOps integration
        • SaaS development and cloud solutions
        • Post-launch support

        Contacts:

        • Website: saigontechnology.com
        • E-mail: sales@saigontechnology.com
        • Facebook: www.facebook.com/saigontechnology
        • Twitter: x.com/saigontech
        • LinkedIn: www.linkedin.com/company/saigon-technology
        • Address: 3rd Floor, Orchard Parkview Building, 130-132 Hong Ha Street, Ward 9, Phu Nhuan District, Ho Chi Minh City
        • Phone: (+84) 88873 9363
        5. Designveloper

        5. Designveloper

        Designveloper is based in Vietnam but works with clients globally, including in the USA. They offer outsourcing services focused on web applications, mobile apps, SaaS products, and UI/UX design. Their team covers the full product development cycle, from design through launch.

        They lean on modern tech stacks like MERN, Next.js, React Native, and others. While they’re offshore-based, their service model supports transparent communication and delivery standards that help clients manage projects remotely without friction.

        Key Highlights:

        • Offshore outsourcing partner serving U.S. clients
        • Covers web, mobile, SaaS, and design services
        • Works with modern frameworks and tech stacks
        • High client satisfaction ratings on review platforms
        • End-to-end product delivery capacity

        Services:

        • Web application development (MERN stack, Next.js)
        • Mobile app development (React Native, iOS, Android)
        • UI/UX design and product prototyping
        • SaaS software development
        • Backend and frontend development
        • Ongoing support for scalable delivery

        Contacts:

        • Website: www.designveloper.com
        • E-mail: sales@dgroup.co
        • Facebook: www.facebook.com/designveloper
        • Twitter: x.com/Designveloper
        • LinkedIn: www.linkedin.com/company/designveloper
        • Address: No. 55 Pho Duc Chinh Street, Ben Thanh Ward, Ho Chi Minh City
        • Phone: 028 3914 7373
        6. Syberry Corporation

        6. Syberry Corporation

        Syberry Corporation is an Austin, Texas-based custom software development outsourcing company serving U.S. clients. They provide tailored software solutions across industries such as fintech, energy, education, and e-commerce. They also emphasize quality collaboration and client satisfaction.

        From planning through delivery, Syberry works with clients using modern technologies like Java, ReactJS, AWS, Azure, and PostgreSQL. They take on projects that require strong backend systems and scalable architecture, offering ongoing support and updates post-launch.

        Key Highlights:

        • USA-based in Austin with global client reach
        • Industry coverage across fintech, energy, real estate, education
        • Technology stack includes Java, React, AWS/Azure, PostgreSQL
        • Focus on collaboration and client satisfaction
        • Delivered projects to notable clients like PayPal, Shell, JLL

        Services:

        • Custom enterprise software development
        • Web and backend system development
        • Cloud infrastructure and migration
        • Frontend development with ReactJS
        • Data visualization and integration
        • Post-launch support and system evolution

        Contacts:

        • Website: www.syberry.com
        • E-mail: contact@syberry.com
        • LinkedIn: www.linkedin.com/company/syberry
        • Address: 5910 Courtyard Drive STE 105, Austin TX 78731
        • Phone: +1 (512) 400-0056
        7. Kanda Software

        7. Kanda Software

        Kanda Software provides outsourced custom software development services to clients in the USA and beyond. They’re involved throughout the entire development process, from planning to delivery, and they place a strong emphasis on staying flexible based on each project’s shifting needs. Their team includes U.S.-based delivery managers who work directly with clients’ product owners to manage timelines, budgets, and outcomes. This structure allows them to make quick adjustments when needed and keep communication open.

        Their model supports projects that require specialized technical expertise, including areas like AI, machine learning, and DevOps. Kanda is set up to scale teams based on the phase of development, and they aim to deliver reliable work without increasing unnecessary overhead. Their approach focuses on delivering practical results while maintaining long-term value and protection of client IP.

        Key Highlights:

        • U.S.-based delivery managers coordinate closely with clients
        • Ability to scale teams and skills based on project phase
        • Offers domain-specific expertise, including AI and DevOps
        • Prioritizes IP protection and operational efficiency
        • Works across different stages of the software lifecycle

        Services:

        • End-to-end custom software development
        • Integration of AI and ML features
        • DevOps and infrastructure support
        • Product lifecycle management
        • Team scaling and delivery coordination

        Contacts:

        • Website: www.kandasoft.com
        • E-mail: contact@kandasoft.com
        • Twitter: x.com/kandasoftware
        • LinkedIn: www.linkedin.com/company/kanda-software
        • Address: 223 Needham Street, Newton, MA 02464
        • Phone: +1 617 340 3850
        8. ELEKS

        8. ELEKS

        ELEKS provides nearshore custom software development services for U.S. companies through its global delivery centers. Their setup is designed to help clients build dedicated teams that align with their working hours and project needs. Time zone compatibility and cultural alignment are a key part of how they operate, aiming to make long-distance collaboration smoother and more manageable.

        Their teams can handle complex software projects from start to finish, providing access to a wide range of technical skills. ELEKS focuses on embedding its people into the client’s process and maintaining consistency in both communication and quality. Their model also allows them to deliver tailored project teams that match the scale and scope of the client’s goals.

        Key Highlights:

        • Offers nearshore development aligned with U.S. time zones
        • Combines global delivery with cultural compatibility
        • Project teams are customized to client needs
        • Works across complex and long-term software projects
        • Supports team integration and knowledge transfer

        Services:

        • Nearshore software development
        • Custom software design and architecture
        • Dedicated development teams
        • Tech consulting and system modernization
        • Integration with in-house teams

        Contacts:

        • Website: eleks.com
        • Facebook: www.facebook.com/ELEKS.Software
        • Twitter: x.com/ELEKSSoftware
        • LinkedIn: www.linkedin.com/company/eleks
        • Address: 625 W. Adams St., Chicago, IL 60661
        • Phone: +1 708 967 4803
        9. Glorium Technologies

        9. Glorium Technologies

        Glorium Technologies is a U.S.-based outsourcing company focused on full-cycle software development. They mainly work with clients in healthcare and real estate but also support other industries such as fintech, travel, education, and e-commerce. Their goal is to provide practical, scalable solutions that match regulatory requirements and industry expectations.

        Their teams handle both technical development and process management, often working as a long-term partner instead of a one-off vendor. They cover everything from compliance standards like HIPAA and GDPR to staff augmentation for faster delivery. Their service model is built around tailoring tech solutions to the specific problems their clients are facing, rather than applying one-size-fits-all methods.

        Key Highlights:

        • Focus on healthcare, real estate, and other regulated sectors
        • Supports full development cycle from concept to launch
        • Handles compliance with HIPAA, FHIR, and GDPR standards
        • Offers staff augmentation alongside core development services
        • Works across a wide range of industries and use cases

        Services:

        • Custom software development
        • Web and mobile app development
        • Staff augmentation
        • Quality assurance and testing
        • System integration and automation
        • Industry-specific solution design

        Contacts:

        • Website: gloriumtech.com
        • LinkedIn: www.linkedin.com/company/glorium-technologies
        • Twitter: x.com/Glorium_Tech
        • Address: 100 Overlook Center, 2nd floor, Princeton, NJ 08540 USA
        • Phone: +1-888-354-0883
        10. Mayura Consultancy Services

        10. Mayura Consultancy Services

        Mayura Consultancy Services provides custom software development services across industries like retail, logistics, education, and fintech. Since starting in 2015, they’ve delivered projects to hundreds of clients worldwide. Their work covers a broad range of tech needs including web platforms, mobile apps, and SaaS products. They also support digital transformation for companies aiming to expand their online presence or modernize legacy systems.

        Their teams work with modern tech stacks like Angular, Node.js, Python, Flutter, and React Native, tailoring each solution to fit business goals. Projects typically focus on improving digital experiences or building scalable platforms from scratch. Mayura also takes on more specialized work like BI & analytics and e-commerce development, often serving clients with multiple business units under a single brand.

        Key Highlights:

        • Established in 2015 with a global client base
        • Covers industries like fintech, retail, logistics, and education
        • Focuses on scalable solutions and digital transformation
        • Uses modern tech stacks across projects
        • Offers platform development for both mobile and web

        Services:

        • Custom software development
        • Web development
        • Mobile app development
        • SaaS product development
        • BI & analytics
        • E-commerce development

        Contacts:

        • Website: www.mayuraconsultancy.com
        • E-mail: info@mayuraconsultancy.com
        • Facebook: www.facebook.com/MayuraConsultancyServices
        • LinkedIn: www.linkedin.com/company/mayura-consultancy-services
        • Twitter: x.com/mayura_mcs
        • Instagram: www.instagram.com/mayuraconsultancyservices
        • Address: 1450 Brickell Bay Drive, Miami Florida – 33131 USA
        • Phone: +1-765-896-5271
        11. Synebo

        11. Synebo

        Synebo focuses on Salesforce development and CRM integration services. Their work includes building custom Salesforce solutions, managing platform implementations, and supporting businesses with ongoing maintenance. They often work as an outsourced Salesforce development partner for companies that need to scale fast or bring in certified specialists.

        Their approach is centered around aligning technology with business goals. They offer end-to-end support – from the early planning stages to rollout and post-launch support. With offices in the U.S. and Europe, they handle projects for clients in finance, healthcare, e-commerce, and other sectors. Synebo also holds multiple Salesforce certifications and formal partnerships, which enables them to handle complex integrations and platform builds.

        Key Highlights:

        • Specializes in Salesforce development and CRM solutions
        • Offers full-cycle outsourcing services from planning to support
        • Holds multiple Salesforce certifications and partnerships
        • Works with companies across finance, healthcare, and e-commerce
        • U.S. office supports North American clients

        Services:

        • Salesforce custom development
        • CRM and ERP integration
        • Salesforce platform implementation
        • Ongoing maintenance and support
        • Business-focused consulting

        Contacts:

        • Website: www.synebo.io
        • E-mail: contact@synebo.io
        • LinkedIn: www.linkedin.com/company/synebo
        • Instagram: www.instagram.com/synebo
        • Facebook: www.facebook.com/synebo
        • Twitter: x.com/synebo
        • Address: United States, Delaware Newark 200 Continental Drive Suite 401
        • Phone: +1 646 918 8189
        12. ScienceSoft

        12. ScienceSoft

        ScienceSoft has been offering software development services for decades, helping companies across more than 30 industries. Their outsourcing model is designed for businesses that need to extend internal teams or move quickly on development projects without growing their headcount. They provide full-cycle development support while allowing clients to stay in control of goals and priorities.

        Based in Texas with offices around the world, ScienceSoft takes on projects that require experience with technologies like AI, IoT, and big data. They’ve worked with both large enterprises and smaller firms looking to bridge internal skill gaps. Their services are broad, covering everything from modern product development to digital transformation and infrastructure support.

        Key Highlights:

        • Headquartered in the U.S. with global delivery centers
        • Offers long-term software outsourcing for a wide range of industries
        • Works with modern tech like AI, blockchain, and IoT
        • Supports internal IT teams or fully manages development
        • Recognized by industry analysts for delivery capability

        Services:

        • Custom software development
        • IT consulting and team extension
        • AI and machine learning solutions
        • System integration and modernization
        • Cloud and infrastructure development

        Contacts:

        • Website: www.scnsoft.com
        • Email: contact@scnsoft.com
        • LinkedIn: www.linkedin.com/company/sciencesoft
        • Facebook: www.facebook.com/sciencesoft.solutions
        • Twitter: x.com/ScienceSoft
        • Address: 5900 S. Lake Forest Drive, Suite 300, McKinney, Dallas area, TX-75070
        • Phone: +1 214 306 68 37
        13. MLSDev

        13. MLSDev

        MLSDev provides end-to-end software development services with a focus on product discovery, development, and release planning. They work with startups and established businesses alike, guiding projects from early-stage ideas to fully launched platforms. Their team structures each engagement around the client’s goals, forming dedicated teams that work on each phase of development.

        Their process starts with a discovery phase, where they assess business goals and recommend tech solutions before any development starts. This helps with clearer planning and cost control. MLSDev handles a range of industries including healthcare, finance, e-commerce, and media. Their tech stack includes modern frameworks and cloud platforms, which they use to create both mobile and web-based solutions.

        Key Highlights:

        • Focuses on the full software development cycle
        • Offers discovery and planning before development starts
        • Works across multiple industries including healthcare and e-commerce
        • Teams build mobile and web applications tailored to user needs
        • Known for forming dedicated teams for long-term development

        Services:

        • Custom software development
        • Mobile and web application development
        • Product discovery and design
        • Dedicated development teams
        • Staff augmentation and team scaling

        Contacts:

        • Website: mlsdev.com
        • E-mail: hello@mlsdev.com
        • Facebook: www.facebook.com/MLSDev
        • Twitter: x.com/MLSDevCom
        • LinkedIn: www.linkedin.com/company/mlsdev
        • Instagram: www.instagram.com/mlsdev
        • Address: United States Raleigh, NC 27603
        14. Vention

        14. Vention

        Vention delivers software development outsourcing services for startups and enterprises. With over 20 years of experience, they handle everything from building MVPs for early-stage companies to scaling platforms for Fortune 500 clients. Their development hubs are spread across different regions, which allows them to provide around-the-clock development coverage when needed.

        Their services include custom software engineering, cloud integration, and development for newer tech areas like AI, blockchain, and IoT. They also partner with major cloud providers like AWS and Google Cloud. Their teams are made up of engineers with experience in multiple industries, and they build solutions that support both rapid growth and longer-term stability.

        Key Highlights:

        • Supports both startups and global enterprises
        • Offices across North America and Europe
        • Partners with AWS, Microsoft, and Google Cloud
        • Works on advanced tech including AI and blockchain

        Services:

        • Custom software development
        • Cloud architecture and migration
        • IoT and AI product development
        • Team extension and dedicated engineers
        • MVP development and scaling

        Contacts:

        • Website: ventionteams.com
        • E-mail: hello@ventionteams.com
        • LinkedIn: www.linkedin.com/company/ventionteams
        • Instagram: www.instagram.com/ventionteams
        • Twitter: x.com/ventionteams
        • Address: 575 Lexington Avenue, 14th Floor New York, NY 10022
        • Phone: +1 (718) 374-5043
        15. N-iX

        15. N-iX

        N-iX is a global software engineering firm offering outsourced development services to clients in finance, manufacturing, logistics, and other sectors. They work with companies that need help scaling teams, improving their tech infrastructure, or launching new digital platforms. Their development teams are based in Europe and Latin America, and they support projects for clients in the U.S. and globally.

        They handle large-scale projects involving technologies like cloud, AI, and .NET. N-iX often works with enterprise clients that need long-term development partnerships or ongoing modernization efforts. Their services are structured to support both technical delivery and business strategy, helping clients stay competitive while expanding their digital capabilities.

        Key Highlights:

        • Supports global enterprises with development and consulting
        • Offers services in the U.S. and across Europe and Latin America
        • Experience with enterprise systems and cloud infrastructure
        • Focuses on long-term partnerships and scaling client operations
        • Recognized in the Global Outsourcing 100 list

        Services:

        • Custom software development
        • Enterprise system modernization
        • Cloud migration and DevOps
        • Data analytics and AI solutions
        • Dedicated development teams

        Contacts:

        • Website: www.n-ix.com
        • E-mail: contact@n-ix.com
        • Facebook: www.facebook.com/N.iX.Company
        • Twitter: x.com/N_iX_Global
        • LinkedIn: www.linkedin.com/company/n-ix
        • Address: 4330 W Broward Boulevard – Space P/Q, Plantation, FL 33317
        • Phone: +17273415669
        16. Nearsol

        16. Nearsol

        Nearsol focuses on offering custom software development outsourcing and nearshore solutions for businesses looking to scale or operate more efficiently. Headquartered in the US, the company works across regions like LATAM, the Caribbean, and Asia-Pacific. Their model supports flexible and cost-effective services, which often appeal to companies exploring new markets or looking for better ways to manage their customer experience operations.

        Their approach is based on providing tailored outsourcing models that blend tech with workforce solutions. Whether it’s customer experience tools, workforce planning, or infrastructure leasing, Nearsol builds its services to match specific business goals. With a wide presence and a focus on scalability, they serve both Fortune 500 clients and newer companies entering the market.

        Key Highlights:

        • Headquartered in the US with global delivery centers
        • Offers workforce, customer service, and operational outsourcing
        • Certified as a Great Place to Work
        • Expanding across Latin America and Asia-Pacific

        Services:

        • Custom customer experience solutions (CXaaS)
        • Workforce management outsourcing (WFMaaS)
        • Seat leasing for scalability (SLaaS)
        • Tech-enabled analytics and reporting using tools like Power BI, jQuery, and Nginx

        Contacts:

        • Website: nearsol.com
        • LinkedIn: www.linkedin.com/company/nearsol
        • Facebook: www.facebook.com/nearsol
        • Instagram: www.instagram.com/nearsol
        • Address: 28202 Cabot Road Suite #300 Laguna Niguel, CA 92677
        17. Itransition

        17. Itransition

        Itransition is a software outsourcing company that handles full-cycle software development for a wide range of clients, from startups to large enterprises. With delivery centers spread across the Americas, Europe, and Asia, their setup supports both long-term development partnerships and shorter-term digital transformation projects. They combine years of technical experience with industry-specific insight.

        Their work includes building new software from scratch, updating legacy systems, and implementing platform-based tools. Itransition also partners with major cloud and tech providers to deliver more scalable and secure software. Their service model is flexible, often aligning with businesses that need high-quality solutions but also want to control costs or improve internal capabilities.

        Key Highlights:

        • Supports both startups and large enterprises
        • Offers long-term and project-based development support
        • Delivery centers across multiple regions
        • Works with clients adopting modern technologies
        • Offers flexible engagement models

        Services:

        • End-to-end custom software development
        • Application modernization and legacy system updates
        • Platform-based solution integration
        • AI, blockchain, and cloud software development
        • DevOps and continuous integration

        Contacts:

        • Website: www.itransition.com
        • E-mail: info@itransition.com
        • Facebook: www.facebook.com/Itransition
        • LinkedIn: www.linkedin.com/company/itransition
        • Twitter: x.com/itransition
        • Address: 160 Clairemont Ave, Suite 200, Decatur, GA 30030
        • Phone: +1 720 207 2820
        18. HQ Software

        18. HQ Software

        HQ Software is a U.S.-based outsourcing company that delivers custom software for businesses across multiple industries. With over two decades in the field, they specialize in practical development projects like mobile apps, web platforms, and system reengineering. Their experience stretches across sectors like finance, healthcare, retail, and the Internet of Things.

        Rather than taking a one-size-fits-all approach, HQ Software works through structured processes – from consultation and prototyping to long-term maintenance. Their tech stack is wide-ranging, with modern programming languages and frameworks used to develop scalable and maintainable software products.

        Key Highlights:

        • More than 23 years in custom software development
        • Has delivered over 450 projects to date
        • Focuses on both core development and modernization
        • Works across multiple verticals including IoT and healthcare
        • Uses a diverse and up-to-date tech stack

        Services:

        • Web and mobile app development
        • Software consulting and prototyping
        • Product reengineering and modernization
        • 3rd-party software customization
        • Integration and quality assurance

        Contacts:

        • Website: hqsoftwarelab.com
        • E-mail: team@hqsoftwarelab.com
        • LinkedIn: www.linkedin.com/company/hq-software
        • Twitter: x.com/HQSoftware
        • Facebook: www.facebook.com/HQSoftwareCompany
        • Address: 315 Madison Avenue #3045, New York City
        • Phone: +1 737 600 8787
        19. Purrweb

        19. Purrweb

        Purrweb provides software outsourcing services for businesses looking to build apps or launch digital products without scaling up their in-house teams. Based on client needs, they either assemble full product teams or fill specific skill gaps through staff augmentation. Their work spans industries like telemedicine, fintech, IoT, and marketplaces.

        They lean into Agile development and maintain tight communication loops with clients through weekly calls and regular demos. Their process aims to simplify the outsourcing experience, breaking it down into two-week sprints with clear deliverables. The team also supports clients post-launch through continuous maintenance and feature updates.

        Key Highlights:

        • Frequent client updates with weekly demos
        • Experience across a wide range of digital product types
        • Uses Agile and SCRUM methods to stay flexible
        • Offers both team-based and staff augmentation models

        Services:

        • Full-cycle software development
        • Staff augmentation for tech roles
        • UI/UX design and prototyping
        • DevOps and backend system support
        • Ongoing maintenance and product updates

        Contacts:

        • Website: www.purrweb.com
        • E-mail: hi@purrweb.com
        • Address: 340 S Lemon Ave #9923 Walnut, CA 91789
        • Phone: +1 484 460-80-69
        20. IntellectSoft

        20. IntellectSoft

        IntellectSoft is a custom software development outsourcing company that works with organizations of all sizes, including Fortune 500 brands. With a presence in over 20 countries, their teams handle complex software builds and emerging tech projects, often in regulated or high-compliance industries like healthcare, finance, and logistics.

        The company brings experience from both enterprise projects and startup environments. Their approach involves specialized labs for areas like blockchain, cognitive computing, and AR/VR. This structure allows them to build out modern, scalable applications while still offering flexibility in how clients engage their teams.

        Key Highlights:

        • Trusted by major brands like Intel and Eurostar
        • Presence in more than 20 countries worldwide
        • Dedicated innovation labs for emerging technologies
        • Uses hybrid teams with targeted domain expertise

        Services:

        • Custom software development for web and mobile
        • AR, VR, and mixed reality applications
        • Blockchain and IoT solutions
        • Legacy modernization and system integration
        • Industry-specific development for finance, health, and logistics

        Contacts: 

        • Website: www.intellectsoft.net
        • E-mail: info@intellectsoft.net
        • Facebook: www.facebook.com/Intellectsoft
        • Twitter: x.com/Intellectsoft
        • LinkedIn: www.linkedin.com/company/intellectsoft
        • Address: 500 Fashion Ave Fl 8A New York City NY 10018, USA
        • Phone: +1 (650) 233-6196

        Conclusion

        Choosing a custom software development outsourcing company in the USA isn’t about finding the biggest name or flashiest pitch – it’s about matching your specific goals with the right team. Each company we looked at brings something different to the table: some focus heavily on deep technical stacks and long-term experience, while others lean into agile delivery, niche expertise, or scalable team models.

        In reality, there’s no one-size-fits-all answer here. What matters most is finding a partner that listens, adapts, and builds solutions that actually solve your business problems – not just look good on paper. Whether you’re a startup needing speed and flexibility, or an enterprise looking to modernize legacy systems, the USA outsourcing market offers a broad spectrum of choices. The key is doing your homework and making sure the partnership feels more like collaboration than delegation.

        AI Summary