22 Top .NET Development Companies (2026)
The .NET development companies landscape continues to evolve rapidly as businesses seek reliable partners for building secure and high-performance applications. These specialized agencies focus on creating tailored solutions using the latest Microsoft technologies, helping organizations streamline operations and stay competitive in digital markets.
Many leading .NET development companies stand out by offering full-cycle services from initial architecture design through deployment and ongoing maintenance. They excel at building everything from enterprise-level systems to modern web and mobile applications, always emphasizing scalability, security, and seamless integration with existing business tools.
1. Oski Solutions
At Oski Solutions, we design, develop, deploy, and maintain well-engineered software solutions for tech-forward enterprises and ambitious start-ups. We focus on custom software and web development that supports business modernization and operational scaling through full-cycle projects or team augmentation.
Our company works primarily with .NET, Node.js, and related Microsoft stack technologies while delivering frontend solutions in React or Angular. We handle cloud migration to Azure or AWS along with legacy system modernization and API integrations. We maintain strong expertise in Umbraco for CMS projects and provide dedicated teams that integrate smoothly with client processes under agile methodologies.
Key Highlights:
Focus on North America and Western Europe clients
Expertise in full-cycle development and outstaffing
Agile and transparent project management
Services:
.NET development
Cloud migration
Legacy system modernization
API integration
Web application development
Contact Information:
Website: oski.site
Address: Kaupmehe tn 7-120, Tallinn, Estonia
Phone: +48571282759
E-mail: contact@oski.site
LinkedIn: www.linkedin.com/company/oski-solutions
NET Development Services
Build secure, scalable, and high-performance .NET solutions with experienced development teams.
2. Itransition
Itransition offers full-cycle .NET application development along with outsourcing of skilled engineers. The company creates different types of web, mobile, and desktop applications focused on performance, scalability, and security.
Itransition works on solutions such as CRM systems, ERP platforms, and business intelligence tools. The company also handles migration to .NET, modernization of existing systems, integration services, and ongoing support. Clients come from various industries looking for custom software built with Microsoft technologies.
Key Highlights:
Microsoft Solutions Partner in Data & AI and Digital & App Innovation
Offices located in the USA, UK, Mexico, and UAE
Quick project start within one to four weeks
Services:
Cloud development
IoT development
Web application development
Mobile application development
Desktop application development
Microservices development
Contact Information:
Website: www.itransition.com
Address: 160 Clairemont Ave, Suite 200, Decatur, GA 30030
Phone: +1 720 207 2820
E-mail: info@itransition.com
LinkedIn: www.linkedin.com/company/itransition
Twitter: x.com/itransition
Facebook: www.facebook.com/Itransition
3. A-listware
A-listware supplies software development services through dedicated teams and outsourcing options. The company works with Microsoft .NET technologies alongside other platforms for custom solutions and legacy modernization.
A-listware handles application services, cloud development, and enterprise software creation. The company provides IT consulting and infrastructure management to support project needs. A-listware maintains presence in the UK and USA while focusing on seamless integration with client environments.
Key Highlights:
Legacy software modernization
Dedicated development team option
Infrastructure management services
Services:
Data analytics work
Cybersecurity solutions
UX/UI design
Testing and quality assurance
Help desk support
Contact Information:
Website: a-listware.com
Address: North Bergen, NJ 07047, USA
Phone: +1 (888) 337 93 73
Email: info@a-listware.com
Facebook: www.facebook.com/alistware
LinkedIn: www.linkedin.com/company/a-listware
4. Leobit
Leobit specializes in Microsoft stack development with a focus on .NET solutions. The company builds web, desktop, and cross-platform mobile applications using frameworks like ASP.NET Core and .NET MAUI.
The company delivers enterprise systems such as ERP, CRM, and SaaS platforms. The company also provides dedicated developers, application assessment, re-engineering, migration from other frameworks, and ongoing support. Leobit maintains partnerships with Microsoft and works across multiple industries including fintech, healthcare, and real estate.
Key Highlights:
Microsoft Solutions Partner for Digital & App Innovation
Experience with more than one hundred .NET projects
ISO 9001 and ISO 27001 certified
Services:
Machine learning integration
Legacy system migration
Desktop application development
Cross-platform mobile development
SaaS platform development
Application support and maintenance
Contact Information:
Website: leobit.com
Address: 5555 N. Lamar, Suite L-127, Austin, TX, USA
Phone: +1 512-399-5386
E-mail: sales@leobit.com
LinkedIn: www.linkedin.com/company/leobit
Facebook: www.facebook.com/LeobitLLC
Instagram: www.instagram.com/leobitllc
5. ScienceSoft
ScienceSoft delivers .NET software development services including design, implementation, testing, and modernization. The company creates web, mobile, and desktop applications using the .NET platform.
ScienceSoft supports integration, cloud migration, and application evolution for different business needs. The company works with various industries and offers different cooperation models such as team augmentation, dedicated teams, and full project outsourcing. ScienceSoft emphasizes architecture planning and quality assurance in its projects.
Key Highlights:
Microsoft partner since two thousand eight
Completed more than four thousand two hundred IT projects
Experience in thirty plus industries
Services:
UX/UI design
Mobile development
Application integration
Cloud migration
Application modernization
Testing and QA
Contact Information:
Website: www.scnsoft.com
Address: 5900 S. Lake Forest Drive Suite 300, McKinney, TX, USA
Phone: +1 214 306 6837
E-mail: contact@scnsoft.com
LinkedIn: www.linkedin.com/company/sciencesoft
Twitter: x.com/ScienceSoft
Facebook: www.facebook.com/sciencesoft.solutions
6. Lengreo
Lengreo offers website development services along with custom web solutions for business needs. The company handles discovery phases, prototyping, design work, and full implementation of websites that include eCommerce platforms or landing pages.
They combine digital marketing approaches with technical delivery to support client projects. The company provides strategy consulting and implementation services that connect marketing efforts with web development outcomes. Lengreo works across different sectors while maintaining focus on practical results through content planning and optimization steps.
Key Highlights:
Strategy mapping for digital efforts
Integration of marketing with development
Personalized approach to client projects
Services:
SEO optimization
Paid advertising campaigns
Lead generation activities
Social media content creation
Demand generation planning
Contact Information:
Website: lengreo.com
Address: Vrijstraat 9 C/D, 5611 AT Eindhoven, Netherlands
Email: hi@lengreo.com
Phone: +31 686 147 566
LinkedIn: www.linkedin.com/company/lengreo
Twitter: x.com/Lengreo
Instagram: www.instagram.com/lengreo.agency
7. Iflexion
Iflexion handles end-to-end .NET-based software development for different business requirements. The company builds web, desktop, and mobile applications with tailored functionality.
They support modernization of legacy .NET applications, cloud migration, and maintenance services. The company develops enterprise solutions like ERP and CRM systems along with IoT and machine learning features. Iflexion offers flexible cooperation options including dedicated teams and full project delivery.
Key Highlights:
One hundred fifty plus .NET developers available
ISO 9001 aligned quality management
More than twenty five years in .NET development
Services:
QA and testing
Application migration to the cloud
Solution conceptualization
Software development
Software maintenance and support
IoT application development
Contact Information:
Website: www.iflexion.com
Address: 160 Clairemont Ave, Suite 200, Decatur, GA 30030, United States
Phone: +1 720 207 0369
E-mail: contact@iflexion.com
8. Belitsoft
Belitsoft is a company that mainly works with backend, cloud, and full-stack projects. The company builds custom .NET development solutions that combine .NET with modern front-end technologies, so the final product feels complete and practical.
Their work covers enterprise web platforms, system integration, Azure cloud development, and mobile apps built with .NET MAUI. Belitsoft also helps with updating older systems, moving projects to newer .NET versions, and testing. The company is a Microsoft partner and works with clients from different industries.
Key Highlights:
Microsoft Gold Application Development partner status
Dedicated .NET Competence Center
Works with custom .NET development projects
Services:
Server-side development
UI development
ASP.NET Core web development
.NET mobile development
System integration
Cloud development services
Contact Information:
Website: belitsoft.com
Address: 700 N Fairfax St Ste 614, Alexandria, VA 22314, United States
Phone: +1 917 410 5757
E-mail: info@belitsoft.com
LinkedIn: www.linkedin.com/company/belitsoft-llc
Twitter: x.com/BelitsoftCom
Facebook: www.facebook.com/Belitsoft
9. 21century.tech
21century.tech operates as an AI-native software studio that pairs senior engineers with AI tools on every task. The company focuses on delivering production software through a process where human experts handle architecture and final decisions while AI manages routine code work.
This approach allows the studio to move projects from brief to deployment in shorter timeframes than traditional methods. 21century.tech maintains full human review and ownership on all code. The company works remotely with a base in Miami and emphasizes practical outcomes like daily progress updates and production-ready results without unnecessary delays.
Key Highlights:
Human-reviewed code on all projects
AI support for routine development tasks
Senior engineers lead architecture decisions
Services:
Full software development
Code refactoring
Third-party integrations
Application deployment
Contact Information:
Website: 21century.tech
E-mail: kirill@oski.site
10. NET Developers
NET Developers supplies dedicated teams that work only on client projects. The company builds applications inside the Microsoft .NET framework and applies SOLID design principles.
They create solutions on .NET CMS platforms to support efficient web delivery. The company also handles front-end work with popular frameworks to complete full solutions. NET Developers keeps a simple pricing approach and operates from Warsaw while combining different experience levels in its teams.
Key Highlights:
Dedicated project teams
Simple pricing structure
Focus on timely delivery
Services:
Front-end development
CMS application development
C# .NET development
Contact Information:
Website: net-devs.com
Address: Obrzeżna 1D, 02-691 Warszawa
Phone: +48 571 282 759
E-mail: contact@net-devs.com
LinkedIn: www.linkedin.com/company/net-devs
11. SoftPro
SoftPro is a software development company that works with custom business solutions. The company uses Azure, the Microsoft stack, and other technologies to build applications around specific project needs.
SoftPro creates web applications that work smoothly across different devices and can support growing business requirements. The company also handles cloud-based development and can add artificial intelligence features when they make sense for the project. SoftPro has offices in Warsaw and supports projects from the first planning stage to later updates and improvements.
Key Highlights:
Custom software focus
Microsoft stack expertise
Cloud and AI capabilities
Services:
Web application development
Cloud development
Artificial intelligence solutions
Software maintenance
Contact Information:
Website: soft-pro.pl
Address: 13 Erasmus Ciołka St. 401, Warsaw, Poland
Phone: +48 571 282 759
LinkedIn: www.linkedin.com/in/kyrylo-o
12. Softacom
Softacom delivers full-cycle .NET application development along with modernization and migration support for existing systems. The company works with web, mobile, and desktop solutions while incorporating Microsoft technologies to match specific business requirements.
The company analyzes client needs before suggesting approaches and maintains transparent processes during projects. The company offers different cooperation models such as dedicated teams or augmentation. Softacom also provides IT consulting and AI-related services to complement .NET work, and has built experience across multiple industries through various projects.
Key Highlights:
Transparent project cooperation models
Certified Azure and AWS solution architects
Focus on client-specific analysis
Services:
Application modernization
Developer outstaffing
Software integration
IT consulting
AI transformation services
Contact Information:
Website: www.softacom.com
Address: 300 Lenora Street, Suite 6114, Seattle, WA 98121
Phone: +1 (425) 842-1759
E-mail: hello@softacom.com
LinkedIn: www.linkedin.com/company/softacom-llc
Twitter: x.com/Softacom
Facebook: www.facebook.com/Softacom
Instagram: www.instagram.com/softacom
13. Gilzor
Gilzor builds custom digital products through full-cycle development services. The company creates web and mobile applications while supporting idea validation and business analysis phases.
Gilzor delivers UI/UX design work alongside quality assurance and post-launch maintenance. The company assists with go-to-market strategies and research activities to align technical solutions with market needs. Gilzor maintains offices in Poland and Cyprus while focusing on scalable applications for various business types.
Key Highlights:
Full-cycle development process
User-centric design methods
Ongoing support after launch
Services:
Mobile application development
UI/UX design work
Quality assurance testing
Business analysis support
Go-to-market strategy assistance
Contact Information:
Website: www.gilzor.com
Address: Poland, Warsaw, Office 58, street Adama Mickiewicza 37, 01-625
E-mail: contacts@gilzor.com
LinkedIn: www.linkedin.com/company/gilzor-softwaredevelopment
14. Prioxis
Prioxis builds custom .NET applications with attention to performance and security needs. The company follows a structured process that includes business goal definition, architecture design, development in agile sprints, and comprehensive testing.
Prioxis creates enterprise solutions along with cross-platform options and integrates Azure services where suitable. The company handles UI/UX aspects and provides post-launch support for ongoing adjustments. Prioxis works across several industries and maintains Microsoft partnership status for its .NET projects.
Key Highlights:
Focus on scalable architecture patterns
Microsoft Gold Partner status
Structured five-step development process
Services:
Cloud application development
UI/UX design
Enterprise mobility solutions
Data engineering services
AI solutions implementation
Contact Information:
Website: www.prioxis.com
Address: B-1203-1208, Titanium Business Park, Ahmedabad, Gujarat 380051, India
E-mail: business@prioxis.com
LinkedIn: www.linkedin.com/company/prioxis-technologies
Twitter: x.com/PrioxisTechno
Facebook: www.facebook.com/PrioxisTechnologies
Instagram: www.instagram.com/prioxis_technologies
15. Rishabh Software
Rishabh Software develops .NET-based solutions for web, mobile, and cloud applications. The company applies Microsoft best practices in architecture and code to create systems that fit different business scales from startups to enterprises.
Rishabh Software handles modernization of legacy applications and builds custom solutions with various integration needs. The company supports multiple architecture patterns and works in industries such as healthcare and fintech. Rishabh Software maintains full-cycle delivery that includes design through maintenance.
Key Highlights:
Experience with microservices and cloud architectures
Focus on code portability and documentation
Microsoft Solutions Partner
Services:
Application modernization
System integration
Web application development
Mobile application development
Cloud application development
Contact Information:
Website: www.rishabhsoft.com
Address: Plot 66, Beside Sigil India, Padra Road, Atladra, Vadodara – 390012, Gujarat
Phone: +1-201-484-7302
E-mail: sales@rishabhsoft.com
LinkedIn: www.linkedin.com/company/rishabh-software
Twitter: x.com/rishabhsoft
Facebook: www.facebook.com/rishabhsoft
Instagram: www.instagram.com/rishabhso
16. TatvaSoft
TatvaSoft creates custom .NET software for web, mobile, and enterprise needs. The company works with ASP.NET and .NET Core frameworks to deliver solutions that include cloud elements and data management features.
TatvaSoft covers the full project lifecycle from discovery and design to deployment and ongoing support. The company builds applications for different sectors and maintains Microsoft partnership for technology alignment. TatvaSoft applies agile methods during development to support iterative progress.
Key Highlights:
Microsoft Solutions Partner
Full lifecycle project coverage
Multi-country office presence
Services:
Azure development services
Universal app development
Application lifecycle management
Cloud solutions
Business intelligence tools
Contact Information:
Website: www.tatvasoft.com
Address: TatvaSoft House, Rajpath Club Road, Ahmedabad, Gujarat, 380054
Phone: +91 960 142 1472
E-mail: info@tatvasoft.com
LinkedIn: www.linkedin.com/company/tatvasoft
Twitter: x.com/tatvasoft
Facebook: www.facebook.com/TatvaSoft
17. Clarion
Clarion is a software development company that works with .NET projects for web, mobile, and cloud. The company builds custom applications, updates older systems, and uses tools like ASP.NET Core and .NET MAUI when a project needs cross-platform support.
Their work also includes system integration, DevOps support, and help with moving legacy software to a newer setup. Clarion pays attention to security during development and can stay involved after launch with maintenance and further improvements. The company also offers a trial period for new clients, which can make the first stage of cooperation easier to test.
Key Highlights:
Microsoft technology focus
Risk-free trial option for projects
Architecture pattern expertise
Services:
Cloud-based development
Mobile app development
eCommerce solutions
DevOps consulting
Application maintenance and support
Contact Information:
Website: www.clariontech.com
Address: 50 Main Street, Suite 1000, White Plains, New York 10606, United States
Phone: +1 888-551-0371
E-mail: info@clariontech.com
LinkedIn: www.linkedin.com/company/clariontechnologies
Twitter: x.com/Clarion_Tech
Instagram: www.instagram.com/clarion_technologies
18. Mobian
Mobian develops mobile and AI solutions through dedicated engineering teams. The company handles full product development from design to deployment while supporting legacy integration needs.
The company works on scalable architecture and provides post-launch partnership for maintenance. The company offers both outsourcing and outstaffing models for client projects. Mobian focuses on industries such as healthcare and fintech with attention to regulatory aspects where relevant.
Key Highlights:
Dedicated team model
Post-launch support option
Architecture documentation focus
Services:
AI system development
Mobile application creation
Legacy system integration
Cloud infrastructure work
Quality assurance testing
Contact Information:
Website: mobian.studio
Address: Harju maakond, Tallinn, Kesklinna linnaosa, Masina tn 22, 10113, Estonia
E-mail: info@mobian.studio
LinkedIn: www.linkedin.com/company/mobian-studio
19. Angry Nerds
Angry Nerds is a software development company that works with .NET, C#, and related technologies. They build web applications on .NET Core and can also develop mobile solutions when a project needs cross-platform support.
The company usually works on custom business software, including enterprise applications, microservices, and IoT-related systems. Angry Nerds uses an agile process, so communication and regular project updates are part of the work. Their team also focuses on keeping applications secure, stable, and ready to adjust when business needs change.
Key Highlights:
Transparent communication practices
Agile-driven project workflow
Individual approach to each project
Services:
Quality assurance
UX/UI design
Web development
Custom development
Mobile development
Contact Information:
Website: angrynerds.co
Address: ul. Legnicka 16, 53-673 Wrocław, Poland
Phone: +48 603 151 333
E-mail: hello@angrynerds.co
LinkedIn: www.linkedin.com/company/angry-nerds-software
Twitter: x.com/angrynerds_soft
Facebook: www.facebook.com/angrynerds.software
Instagram: www.instagram.com/angrynerds.software
20. Chudovo
Chudovo provides ASP.NET development services including full-stack applications and legacy system modernization. The company works on projects that range from B2B platforms to electronic health records systems using ASP.NET technologies.
Chudovo handles migration services along with maintenance and support for existing solutions. The company builds REST APIs and microservices while integrating with various front-end frameworks. Chudovo offers flexible engagement models and delivers solutions across multiple industries with attention to security and compliance needs.
Key Highlights:
Migration service options
Full-stack application development
Legacy system modernization
Services:
API development
Microservices architecture
IT consulting
Maintenance and support
Contact Information:
Website: chudovo.com
Address: 99 Wall Street #123, 10005,USA, New York
E-mail: info@chudovo.com
LinkedIn: www.linkedin.com/company/chudovo
Facebook: www.facebook.com/chudovoitcompany
21. Future Processing
Future Processing offers software development services with expertise in .NET technologies. The company delivers digital product services along with cloud and data solutions for different business requirements.
Future Processing maintains partnerships with major technology providers and applies AI-enabled approaches in project delivery. The company focuses on outcome-based models and works across various industries while supporting infrastructure and security aspects. Future Processing operates from multiple locations and emphasizes consulting mindset combined with technical implementation.
Key Highlights:
Microsoft partnership status
AI-enabled delivery framework
Outcome-based project model
Services:
Cloud consulting
Data solutions
Cybersecurity services
Digital product services
Software development
Contact Information:
Website: www.future-processing.com
Address: Bojkowska 37a, 44-100 Gliwice, Poland
Phone: +48 32 461 23 00
E-mail: sales@future-processing.com
LinkedIn: www.linkedin.com/company/future-processing
Facebook: www.facebook.com/FutureProcessing
Instagram: www.instagram.com/futureprocessing
22. Vention
Vention provides .NET development as part of full-cycle software services with AI integration options. The company builds web and mobile solutions while supporting enterprise platforms and legacy modernization efforts.
They operate through different engagement models including dedicated teams and staff augmentation. The company maintains focus on scalable architecture and quality assurance throughout projects. Vention works across multiple industries with attention to security standards and offers discovery workshops for project planning.
Key Highlights:
AI-enabled development teams
Multiple engagement models
Peace of mind project framework
Services:
Mobile development
Web development
Cloud consulting
QA and testing
AI system integration
Contact Information:
Website: ventionteams.com
Address: 575 Lexington Avenue, 14th Floor, New York, NY 10022
Phone: +1 (718) 374-5043
E-mail: hello@ventionteams.com
LinkedIn: www.linkedin.com/company/ventionteams
Twitter: x.com/ventionteams
Instagram: www.instagram.com/ventionteams
Conclusion
Choosing the right .NET development company comes down to finding a partner who truly understands your needs and fits your working style. After reviewing many options, the strongest ones stand out through clear communication, practical experience, and the ability to adapt to real project challenges.
Some excel with large enterprise systems and migrations, while others are great at fast-paced custom web applications or startup projects. It all depends on your goals, budget, and how much ongoing support you expect.
In the end, the best choice feels like a natural extension of your team. Take time to talk with them, ask about recent .NET work, and trust your instincts. The right partner can make your project much smoother and more successful.
