Leading .NET Development Companies in the USA for 2025
Searching for exceptional .NET development services in the USA? You’ve come to the right place. Today’s businesses require software that’s not just dependable but also tailored to their specific needs - whether it’s a dynamic web application, a robust enterprise system, or a cutting-edge cloud solution. The .NET framework is a preferred choice for crafting secure, scalable, and high-performance applications, and the USA hosts some of the most innovative companies excelling in this domain. In this article, we’ll highlight the leading .NET development firms in the USA, showcasing their expertise and why partnering with these top-tier providers can elevate your project to new heights. Let’s get started!

1. Oski Solutions
At Oski Solutions, we focus on helping businesses modernize their processes through .NET and other technologies, with a strong connection to the USA market where we actively engage with clients. With years of experience, we started small but grew into a full-service software development outfit, tackling complex IT challenges for startups and established companies across the USA. We work closely with clients to understand their needs, building solutions that are dependable, scalable, and tailored to their specific goals.
Our .NET development covers web applications, cloud solutions, and custom software, often integrating tools like AI and CRM systems to boost functionality for USA-based businesses. We prioritize clear communication and a collaborative approach, ensuring every project aligns with client objectives, whether they’re in New York, California, or anywhere in between. Whether it’s crafting a new app or migrating systems to the cloud, we aim to deliver software that’s practical and built to last.
Key Highlights:
- Focuses on modernizing business processes with .NET
- Works with startups and established businesses across industries
- Emphasizes close client collaboration for tailored solutions
- Integrates AI and CRM systems into .NET projects
- Prioritizes scalability and reliability in development
Services:
- Web application development
- Custom software development
- Cloud solutions
- AI integration
- CRM software development
- API integration
- Progressive web app development
- Finance software development
- Mobile software development
Contact Information:
- Website: oski.site
- Phone: +48571282759
- Email: contact@oski.site
- Address: Kaupmehe tn 7, 10114 Tallinn, Estonia
- LinkedIn: www.linkedin.com/company/oski-solutions

2. ScienceSoft
ScienceSoft, based in the USA, has been in the IT consulting and software development game since 1989. The company focuses on delivering projects with strict budget and timeline control, keeping communication clear and service quality consistent. With a presence across North America, Europe, and the Gulf, ScienceSoft serves clients in industries like healthcare, banking, retail, and logistics, drawing on a deep understanding of diverse business processes.
The company’s approach to .NET development includes custom software solutions, often tailored to complex enterprise needs. ScienceSoft emphasizes proactive project management, where managers work to optimize budgets, mitigate risks, and ensure smooth collaboration. Partnerships with major tech players like IBM, Microsoft, and Oracle help ScienceSoft integrate advanced tools and frameworks into their .NET projects.
Key Highlights:
- Established in 1989 with a focus on IT consulting and software development
- Serves industries including healthcare, banking, retail, and logistics
- Maintains offices in the USA, Mexico, Finland, Latvia, Lithuania, Poland, KSA, and UAE
- Holds certifications like ISO 13485:2016 for healthcare industry compliance
- Partners with IBM, Microsoft, Oracle, Magento, and ServiceNow
Services:
- IT consulting
- Custom software development
- Application integration
- Data analytics
- Cloud solutions
Contact Information:
- Website: www.scnsoft.com
- Phone: +1 214 306 68 37
- Email: contact@scnsoft.com
- 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

3. Webclues Infotech
Webclues Infotech operates as an AI-driven development company with a strong emphasis on integrating artificial intelligence into their .NET projects. The company builds web platforms, mobile apps, and other solutions, focusing on performance and scalability for clients across various sectors. Webclues Infotech prioritizes using proven technologies to create functional, reliable products that align with client goals.
The company’s .NET development process incorporates AI tools to streamline coding, testing, and deployment, aiming for faster delivery without sacrificing quality. Webclues Infotech also works with blockchain, cloud, and data analytics, offering a broad tech stack to support diverse project needs. Their focus on data-driven insights and generative AI helps clients create systems for automation and decision-making.
Key Highlights:
- Integrates AI tools like ChatGPT, Claude, and others into development processes
- Focuses on industries such as e-commerce, healthcare, and finance
- Emphasizes scalable web and mobile solutions
- Incorporates modern DevOps practices for agile development
- Works with a variety of tech stacks including blockchain and cloud technologies
Services:
- Web development
- Mobile app development
- Cloud and DevOps services
- Blockchain development
- AI and machine learning solutions
- Data analytics
Contact Information:
- Website: www.webcluesinfotech.com
- Phone: +971-50-257-8857
- Email: sales@webcluesinfotech.com
- Address: 6851 Roswell Rd 2nd Floor, Atlanta, GA, USA 30328
- LinkedIn: www.linkedin.com/company/webclues-infotech
- Facebook: www.facebook.com/WebCluesInfotechLLP
- Twitter: x.com/Webcluesinfo
- Instagram: www.instagram.com/webcluesinfotech
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4. Vention
Vention, a USA-based company, specializes in .NET development for web, mobile, and cloud applications. The company focuses on creating high-performance solutions tailored to business needs, often working with ambitious enterprises looking to stay competitive. Vention’s developers leverage a range of .NET tools, including ASP.NET Core and Xamarin, to build cross-platform applications with shared logic.
Vention also offers services like legacy system migration and ongoing maintenance to keep .NET solutions optimized post-launch. With expertise in Azure Machine Learning and big data tools like Hadoop, Vention builds applications that integrate AI and handle large-scale data. The company’s agile methodologies and comprehensive testing ensure projects align with client requirements and function reliably.
Key Highlights:
- Certified Microsoft partner with a focus on .NET development
- Serves industries like finance, healthcare, and technology
- Uses agile methodologies for project delivery
- Emphasizes cross-platform development with tools like Xamarin
- Incorporates AI and big data solutions into .NET projects
Services:
- Custom .NET development
- Mobile app development
- Legacy system migration
- Maintenance and support
- IoT application development
- AI and big data solutions
Contact Information:
- Website: ventionteams.com
- Phone: +1 (718) 374-5043
- Email: hello@ventionteams.com
- Address: 575 Lexington Avenue, 14th Floor, NY 10022
- LinkedIn: www.linkedin.com/company/ventionteams
- Twitter: x.com/ventionteams
- Instagram: www.instagram.com/ventionteams

5. Zenkins
Zenkins, a USA-based company, centers its work on digital transformation through .NET and other technologies like cloud and AI. The company aims to turn business ideas into practical solutions, focusing on industries such as finance, healthcare, and retail, with a culture that values curiosity, planning, and ethical practices in development.
The .NET services at Zenkins cover web and software development, leveraging frameworks like ASP.NET to create scalable applications. The company integrates AI and cloud technologies to enhance functionality, ensuring solutions are tailored to client needs. Zenkins emphasizes a collaborative approach, encouraging open communication and a proactive mindset to deliver projects that align with business goals.
Key Highlights:
- Focuses on digital transformation across multiple industries
- Emphasizes a culture of curiosity, planning, and ethical practices
- Integrates AI and cloud technologies into .NET development
- Prioritizes collaboration and open communication with clients
- Offers tailored solutions for web and software development
Services:
- Web development
- Software development
- Cloud integration
- AI solutions
- UI/UX design
Contact Information:
- Website: zenkins.com
- Phone: +91 70690 18504
- Email: contact@zenkins.com
- Address: 430 Park Ave, New York, NY 10022, United States
- LinkedIn: www.linkedin.com/company/zenkins
- Facebook: www.facebook.com/zenkinstech
- Twitter: x.com/zenkinstech
- Instagram: www.instagram.com/zenkinstech

6. Clarion Technologies
Clarion Technologies, with a long history in software development, provides .NET services to businesses needing scalable web, mobile, or cloud solutions. Based in the USA, the company focuses on delivering full-cycle development, from planning and design to testing and deployment, with an emphasis on aligning solutions with client business objectives.
The .NET development at Clarion Technologies includes building modern web applications and cross-platform mobile apps using tools like ASP.NET Core and Xamarin. The company also offers AI-driven solutions and data analytics, utilizing Microsoft Azure and Power BI to create systems that support real-time insights and automation for clients across various sectors.
Key Highlights:
- Provides full-cycle software development services
- Focuses on aligning solutions with client business goals
- Utilizes tools like ASP.NET Core and Xamarin for cross-platform development
- Incorporates AI and data analytics for enhanced functionality
- Emphasizes agile methodologies and rigorous testing
Services:
- Custom software development
- Web development
- Mobile app development
- Software testing and quality assurance
- Cloud services
- AI solutions
- Data analytics and business intelligence
Contact Information:
- Website: www.clariontech.com
- Phone: +1 (888)-551-0371
- Email: info@clariontech.com
- Address: 50 Main Street, Suite 1000, White Plains, New York 10606, USA
- LinkedIn: www.linkedin.com/company/clariontechnologies
- Twitter: x.com/Clarion_Tech
- Instagram: www.instagram.com/clarion_technologies

7. Leobit
Leobit, with a presence in the USA, Ukraine, Estonia, and Poland, focuses on web, mobile, and .NET development, aiming to support businesses through technological innovation. The company prioritizes transparent collaboration and long-term partnerships, using certifications like ISO 27001 and 9001 to guide their processes. Leobit’s approach centers on understanding client needs and delivering tailored software solutions across industries like finance and healthcare.
The .NET development at Leobit includes building applications with frameworks like ASP.NET, alongside offering UI/UX design through their dedicated Leobit Design Studio. The company also provides maintenance and support to ensure applications remain functional post-launch. By combining technical expertise with a culture of open communication, Leobit works to align solutions with client business goals.
Key Highlights:
- Operates offices in Austin (USA), Lviv (Ukraine), Tallinn (Estonia), and Krakow (Poland)
- Holds ISO 27001 and 9001 certifications for quality and security
- Maintains Microsoft Gold Partnership status
- Runs Leobit Design Studio for UI/UX design services
- Focuses on transparent and collaborative work processes
Services:
- Web development
- Mobile app development
- .NET development
- UI/UX design
- Software maintenance and support
- Technical consulting
Contact Information:
- Website: leobit.com
- Phone: +1512-399-5386
- Email: sales@leobit.com
- Address: Austin, TX - USA, 5555 N. Lamar | Suite L-127, US Headquarters
- LinkedIn: www.linkedin.com/company/leobit
- Facebook: www.facebook.com/LeobitLLC

8. OpenXcell
OpenXcell, founded in 2009 with an office in Las Vegas, specializes in .NET and other technologies like AI and cloud computing to create software solutions. The company works with businesses to develop web and mobile applications, emphasizing adaptability to the evolving digital landscape. OpenXcell’s development process involves close collaboration with clients to ensure solutions meet specific business needs.
The .NET services at OpenXcell cover web and mobile app development, leveraging frameworks like ASP.NET to build functional applications. The company also integrates machine learning and cloud technologies to enhance software capabilities. With a focus on quality assurance and clear communication, OpenXcell aims to deliver reliable solutions tailored to industries such as retail and healthcare.
Key Highlights:
- Founded in 2009 with an office in Las Vegas
- Emphasizes adaptability to changing digital trends
- Integrates AI and cloud computing into .NET projects
- Prioritizes quality assurance in development processes
- Focuses on close client collaboration for tailored solutions
Services:
- Web development
- Mobile app development
- .NET development
- AI and machine learning solutions
- Cloud computing services
- Quality assurance and testing
Contact Information:
- Website: www.openxcell.com
- Phone: +1 888 777 4629
- Email: sales@openxcell.com
- Address: 304 S. Jones Blvd #520 Las Vegas, NV 89107
- LinkedIn: www.linkedin.com/company/openxcell
- Facebook: www.facebook.com/openxcellai
- Twitter: x.com/openxcell

9. Dotsquares
Dotsquares, with a presence in the USA, provides .NET development services focused on creating web, mobile, and desktop applications. The company uses C# and frameworks like ASP.NET and .NET Core to build solutions that support business operations across sectors like e-commerce and finance. Dotsquares emphasizes a structured development process, incorporating regular updates and client feedback to align with project goals.
The .NET offerings at Dotsquares include API development, system integration, and maintenance to keep applications running smoothly. The company also leverages tools like Xamarin for cross-platform mobile apps and Visual Studio for efficient coding and debugging. By combining technical expertise with a focus on clear communication, Dotsquares works to deliver practical software solutions.
Key Highlights:
- Uses C# and .NET Core for cross-platform development
- Emphasizes clear communication and regular project updates
- Supports industries like e-commerce and finance
- Incorporates modern tools like Visual Studio and Xamarin
- Focuses on structured development with client feedback
Services:
- Web application development
- Mobile app development
- .NET integration services
- API development and integration
- Software maintenance and support
- .NET consulting
- Desktop application development
Contact Information:
- Website: www.dotsquares.com
- Phone: +1 301 563 9488
- Email: office@dotsquares.com
- Address: 6701 Democracy Blvd.Suite 300, Bethesda,MD 20817
- LinkedIn: www.linkedin.com/company/dotsquares
- Facebook: www.facebook.com/dotsquaresuk
- Twitter: x.com/dotsquares
- Instagram: www.instagram.com/dotsquaresltd

10. Inoxoft
Inoxoft, operating from the USA with additional offices in Ukraine and Israel, focuses on delivering custom software, web, and mobile applications using .NET and other technologies. The company works closely with clients to understand their business challenges, aiming to create solutions that align with specific goals. Inoxoft’s approach emphasizes clear communication and a structured process, from discovery to deployment, to ensure projects meet client expectations.
The .NET development at Inoxoft includes building applications with frameworks like ASP.NET, alongside services like UI/UX design and data analytics. The company integrates advanced tools to support industries such as healthcare and finance, with a focus on quality assurance to maintain reliable software. Inoxoft also holds certifications like Microsoft Gold Partner, which informs their technical processes.
Key Highlights:
- Maintains offices in the USA, Ukraine, and Israel
- Holds Microsoft Gold Partner and ISO 27001 certifications
- Focuses on understanding client business goals
- Emphasizes quality assurance in development
- Supports industries like healthcare and finance
Services:
- Custom software development
- Web application development
- Mobile app development
- UI/UX design
- Data science and analytics
- Quality assurance
Contact Information:
- Website: inoxoft.com
- Phone: +12673102646
- Email: contact@inoxoft.com
- Address: 1601 Market Street, 19th Floor, Philadelphia, PA 19103
- LinkedIn: www.linkedin.com/company/inoxoft
- Facebook: www.facebook.com/inoxoft
- Twitter: x.com/InoXoft_Inc
- Instagram: www.instagram.com/inoxoft_team

11. Innostax
Innostax, based in Framingham, Massachusetts, specializes in .NET development as part of a broader suite of software consulting services. The company focuses on creating tailored solutions for businesses, working across industries like healthcare, education, and retail. Innostax emphasizes a collaborative approach, ensuring regular client updates and alignment with project goals throughout the development process.
The .NET services at Innostax cover web, mobile, and enterprise applications, using frameworks like .NET Core to build scalable solutions. The company also provides system modernization and software testing to keep applications functional and up-to-date. With a focus on clear processes and client involvement, Innostax aims to deliver software that supports business operations effectively.
Key Highlights:
- Operates from Framingham, Massachusetts
- Works across industries like healthcare, education, and retail
- Emphasizes client collaboration and regular updates
- Uses .NET Core for scalable application development
- Focuses on system modernization and testing
Services:
- Web development
- Mobile app development
- Custom software development
- System modernization
- Software testing
- IT outsourcing
- E-commerce solutions
Contact Information:
- Website: innostax.com
- Address: 1410 Concord St Framingham, MA 01701, USA
- LinkedIn: www.linkedin.com/company/innostax
- Facebook: www.facebook.com/innostax
- Twitter: x.com/innostax

12. SoluLab
SoluLab, established in 2014 with a presence in the USA, focuses on .NET alongside blockchain and AI-driven development. The company works with businesses to create custom software solutions, emphasizing a thorough understanding of client needs and industry challenges. SoluLab’s development process involves close collaboration to ensure solutions are practical and aligned with business objectives.
The .NET development at SoluLab includes building web and mobile applications using frameworks like ASP.NET, with a focus on cross-platform compatibility. The company also integrates AI and cloud technologies to enhance functionality, supporting industries such as e-commerce and energy. SoluLab’s approach prioritizes end-to-end services, from ideation to ongoing support, to maintain application performance.
Key Highlights:
- Founded in 2014 with a focus on blockchain and AI
- Emphasizes understanding client industry challenges
- Uses .NET for cross-platform web and mobile apps
- Integrates AI and cloud technologies
- Supports industries like e-commerce and energy
Services:
- Web development
- Mobile app development
- Custom software development
- Blockchain development
- AI solutions
- Cloud integration
Contact Information:
- Website: www.solulab.com
- Phone: +1 (424) 404-9371
- Email: sales@solulab.com
- Address: 575 Broadway (at Prince), 6th Floor, NY 10012
- LinkedIn: www.linkedin.com/company/solulab
- Facebook: www.facebook.com/solulab.inc
- Twitter: x.com/solulab
- Instagram: www.instagram.com/solulabofficial

13. EffectiveSoft
EffectiveSoft, based in the USA, provides .NET development services focused on creating custom software for businesses across various industries. The company works to align solutions with client goals, using frameworks like ASP.NET and tools such as Visual Studio to build applications. EffectiveSoft’s approach includes a thorough planning phase to define project scope and ensure solutions meet specific business requirements.
The .NET services at EffectiveSoft cover web, mobile, and desktop applications, with an emphasis on cross-platform compatibility and scalability. The company also offers modernization of legacy systems and cloud migration, leveraging platforms like Azure and AWS. With a focus on quality assurance and ongoing support, EffectiveSoft ensures applications remain functional and up-to-date post-launch.
Key Highlights:
- Operates from the USA with a focus on custom software
- Uses ASP.NET and Visual Studio for development
- Emphasizes thorough project planning and analysis
- Holds Clutch recognitions for .NET and enterprise app development
- Supports cross-platform compatibility with .NET Core
Services:
- Web application development
- Mobile app development
- Desktop application development
- Application modernization
- Cloud migration
- Quality assurance
- Maintenance and support
- API development
Contact Information:
- Website: www.effectivesoft.com
- Phone: 1-800-288-9659
- Email: rfq@effectivesoft.com
- Address: San Diego, California, 4445 Eastgate Mall, Suite 200,92121
- LinkedIn: www.linkedin.com/company/effectivesoft
- Facebook: www.facebook.com/EffectiveSoft
- Twitter: x.com/EffectiveSoft

14. ClickySoft
ClickySoft, operating from the USA, provides .NET development services with a focus on creating practical and user-friendly software solutions. The company works closely with clients to understand their business needs, offering a structured process that covers planning, design, and development. ClickySoft’s approach prioritizes clear project management to ensure solutions align with client expectations.
The .NET offerings at ClickySoft include web and mobile applications, using frameworks like ASP.NET Core and Xamarin for cross-platform development. The company also provides backend development and system integration, incorporating tools like Azure for cloud solutions. With an emphasis on quality assurance and post-launch support, ClickySoft ensures applications perform reliably across various use cases.
Key Highlights:
- Operates from the USA with a focus on user-friendly solutions
- Uses ASP.NET Core and Xamarin for development
- Emphasizes structured project management
- Integrates Azure for cloud-based applications
- Prioritizes quality assurance and ongoing support
Services:
- Web application development
- Mobile app development
- Backend development
- System integration
- Cloud development
- Quality assurance
- Maintenance and support
- CMS solutions
Contact Information:
- Website: clickysoft.com
- Phone: +1 (832) 847-6000
- Email: info@clickysoft.com
- Address: 1423 Ashen Flock CT Katy, TX, 77494
- LinkedIn: www.linkedin.com/company/clicky-soft
- Facebook: www.facebook.com/ClickySoft
- Instagram: www.instagram.com/clickysoft

15. Saritasa
Saritasa, based in the USA, focuses on custom .NET development for businesses needing tailored software solutions. The company works across industries like healthcare and industrial management, aiming to create applications that align with client goals. Saritasa’s process involves close collaboration with clients, from planning to deployment, ensuring solutions are practical and meet specific business needs.
The .NET services at Saritasa include building web and desktop applications, as well as integrating technologies like IoT and machine learning. The company also handles legacy system modernization and cloud development, using platforms like Azure to enhance functionality. With a focus on clear communication and structured workflows, Saritasa ensures projects stay on track and deliver functional results.
Key Highlights:
- Operates in the USA with a focus on custom solutions
- Works across industries like healthcare and industrial management
- Uses .NET for web, desktop, and IoT applications
- Emphasizes client collaboration throughout development
- Supports cloud development with platforms like Azure
Services:
- Web application development
- Desktop application development
- API development and integration
- IoT development
- Machine learning and AI integration
- Legacy software modernization
- Cloud development and DevOps
- Data analytics
Contact Information:
- Website: www.saritasa.com
- Phone: 888.424.8792
- Email: info@saritasa.com
- Address: Irvine, CA, 19900 MacArthur Boulevard #650, Irvine, CA 92612
- LinkedIn: www.linkedin.com/company/saritasa
- Facebook: www.facebook.com/SaritasaLLC
- Twitter: x.com/SaritasaLLC

16. Azumo
Azumo, a USA-based company operating since 2016, provides .NET development services with a focus on nearshore talent to support client projects. The company emphasizes building solutions that fit specific business needs, working with industries like healthcare and media. Azumo’s approach includes a thorough analysis of client requirements to ensure applications are both functional and efficient.
The .NET offerings at Azumo cover web and desktop application development, using frameworks like ASP.NET Core to create scalable solutions. The company also provides software audits, modernization, and ongoing maintenance to keep applications up-to-date. With an emphasis on seamless integration and client collaboration, Azumo works to deliver software that supports business operations effectively.
Key Highlights:
- Operating since 2016 with a focus on nearshore development
- Works with industries like healthcare and media
- Uses ASP.NET Core for scalable applications
- Provides software audits and modernization services
- Emphasizes client collaboration and efficient onboarding
Services:
- Web application development
- Desktop application development
- .NET consulting
- Software audits
- Application modernization
- Migration to ASP.NET Core
- Maintenance and support
Contact Information:
- Website: azumo.com
- Phone: 415.610.7002
- LinkedIn: www.linkedin.com/company/azumo-llc
- Facebook: www.facebook.com/azumohq
- Twitter: x.com/azumohq
Conclusion
The .NET framework remains a solid choice for businesses looking to build reliable, scalable software, and the USA is packed with companies that know how to use it well. Whether it’s crafting web apps, modernizing old systems, or diving into cloud solutions, these providers bring a lot of know-how to the table. We’ve looked at a few that focus on understanding client needs and delivering practical results without the hype. For anyone aiming to tackle a .NET project, there’s no shortage of expertise out there-just take the time to find a partner that clicks with your goals. It’s all about getting the right fit to turn your ideas into software that actually works.