The Netherlands stands out as a dynamic tech hub in Europe, home to many skilled ASP.NET development companies. These agencies create reliable web applications and enterprise systems that help businesses thrive in a competitive digital world, blending technical expertise with practical solutions for local and international needs.

What sets them apart is a strong focus on modern, scalable ASP.NET solutions, including performance optimization, cloud integration, and secure custom development. With experience across industries like fintech, logistics, and e-commerce, these companies deliver tailored work that supports both legacy modernization and new digital projects.

1. Oski Solutions

OSKI Solutions delivers ASP.NET development work tailored to the needs of businesses in the Netherlands. We build reliable web applications and support digital transformation projects that fit local market requirements. Our work includes legacy system modernization and smooth API integration that helps companies operate more effectively in the Dutch environment.

The company focuses on full-cycle development and dedicated team arrangements for clients who need consistent support. We handle cloud migration projects and CMS-based solutions with attention to specifics like compliance and integration common in the Netherlands. This approach allows us to deliver practical results that align with how Dutch organizations work.

Key Highlights:

• Custom software development with .NET expertise

• Legacy system modernization and cloud migration

• API integration and microservice architecture

• Dedicated team and IT outsourcing options

Services:

• ASP.NET development

• Web application development

• Digital transformation

• Cloud migration

• Legacy system modernization

Contact Information:

• Website: oski.site

• E-mail: [email protected]

• LinkedIn: www.linkedin.com/company/oski-solutions

• Address: Kaupmehe tn 7, 10114 Tallinn, Estonia

• Phone: +48571282759

2. Volare Software

Volare Software has delivered custom software development for enterprise and SaaS clients. The company works with .NET architecture and provides software consulting services. They build web applications that perform well across devices and handle data management at larger scales.

The agency supports cloud migrations to Azure and implements business process automation through APIs. Volare Software follows agile practices with regular sprints and focuses on DevOps improvements to speed up delivery. They serve clients across Europe and North America with mission-critical systems.

Key Highlights:

• Specializes in enterprise .NET solutions

• Handles database and cloud work

• Supports legacy system upgrades

• Uses agile development cycles

Services:

• Web app development

• Database optimization

• Business process automation

• Cloud migrations

• DevOps implementation

Contact Information:

• Website: volaresoftware.com

• Phone: +31 (0) 35 80 80 337

• Email: [email protected]

• Address: Stadhouderslaan 12, 1213 AH Hilversum, Noord-Holland

• LinkedIn: www.linkedin.com/company/volare-software

• Facebook: www.facebook.com/volaresoftware

• Twitter: x.com/volaresoftware

3. SoftPro

SoftPro provides ASP.NET development services as part of custom software solutions with Microsoft technologies. The company builds web applications and works with ASP.NET along with .Net Core and Azure for business modernization projects. They create scalable applications tailored to specific client requirements in the Netherlands.

The agency handles full-stack development and cloud solutions that integrate ASP.NET components effectively. SoftPro focuses on reliable software that supports process automation and digital growth. The company operates from Warsaw but delivers ASP.NET solutions suitable for Dutch businesses.

Key Highlights:

• Uses ASP.NET and .Net Core technologies

• Builds custom web applications

• Provides cloud development with Microsoft stack

• Supports business modernization projects

Services:

• Software Development

• Web Application Development

• Cloud Development

• Artificial Intelligence

Contact Information:

• Website: soft-pro.pl

• Phone: +48 571 282 759

• Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

• LinkedIn: www.linkedin.com/in/kyrylo-o

4. DOTNET.COMPANY

DOTNET.COMPANY serves as a partner in .NET development and builds reliable applications using the Microsoft stack. The company creates cross-platform mobile apps with .NET MAUI and modernizes legacy systems for improved security and performance. They implement Azure cloud solutions for clients.

The agency develops data and AI solutions while offering ongoing maintenance and support. DOTNET.COMPANY addresses needs in various sectors including government, fintech, and e-commerce. Their work includes talent placement and follows structured processes with agile methods.

Key Highlights:

• Focuses on .NET application development

• Provides legacy modernization

• Works across multiple industries

• Offers talent and support services

Services:

• .NET Application Development

• Mobile App Development

• Legacy System Modernization

• Azure Cloud Services

• Data & AI Solutions

• Maintenance & Support

Contact Information:

• Website: www.dotnet.company

• Phone: +31 620000305

• Email: [email protected]

• Address: Fleminghof 1, 2871 LT Schoonhoven, NETHERLANDS

5. Idas

Idas builds custom digital solutions from Apeldoorn with a focus on ASP.NET development for Dutch organizations. The company creates websites and web applications using ASP.NET that connect smoothly to back-office systems. They develop secure portals with login features and rights management that rely on current data from integrated systems.

The agency turns client concepts into functional web applications and apps while automating business processes through ASP.NET solutions. Idas pays attention to usability and scalability when building these systems for local companies. The company follows a practical approach that delivers tailored ASP.NET development suited to the needs of organizations in the Netherlands.

Key Highlights:

• Develops custom websites and web applications with ASP.NET

• Builds secure portals with back-office integrations

• Creates web applications that automate processes

• Focuses on usability and scalability for Dutch clients

Services:

• Websites

• Portalen

• Apps

• Web Application

• Concept en design

Contact Information:

• Website: idas.nl

• Phone: 055 57 68 945

• Email: [email protected]

• Address: Kanaal Noord 350, 7323 AM Apeldoorn

• LinkedIn: www.linkedin.com/company/idasbv

6. Info Support

Info Support delivers software engineering with a focus on ASP.NET development and predictable delivery for organizations in the Netherlands. The company designs and builds custom software using established engineering principles that work well with Microsoft technologies including ASP.NET. They implement architecture guidelines and consistent development processes for reliable ASP.NET solutions.

The agency handles test automation, code reviews, and CI/CD setups to maintain quality in ASP.NET projects at scale. Info Support works on cloud engineering and application management while supporting DevOps practices for ASP.NET-based systems. The company helps Dutch organizations manage complex software development through disciplined engineering approaches.

Key Highlights:

• Focuses on ASP.NET development with engineering discipline

• Implements consistent processes for Microsoft stack

• Handles quality control and testing in ASP.NET projects

• Supports cloud engineering for ASP.NET solutions

Services:

• Software engineering

• Architecture

• DevOps teams

• Quality engineering

• Cloud Engineering

• Application management

Contact Information:

• Website: www.infosupport.com

• Phone: +31 318 552020

• Email: [email protected]

• Address: Kruisboog 42, 3905 TG, Veenendaal Nederland

• LinkedIn: www.linkedin.com/company/info-support

• Twitter: x.com/infosupportbv

7. Codivo

Codivo develops and maintains custom .NET applications from Zwolle for organizations in the Netherlands. The company works directly with clients on ASP.NET Core projects and handles both backend and frontend development in one place. Bernard Moes brings experience with ASP.NET Core, C# and Azure to each assignment.

The agency creates web applications, APIs and backend systems while also managing integrations with CRM, ERP and other business software. Codivo supports modernization of older .NET versions to newer setups and builds websites and portals with Umbraco CMS. The company offers Azure cloud hosting along with CI/CD pipelines and applies AI-supported development where it fits.

Key Highlights:

• Specializes in custom .NET applications with ASP.NET Core

• Works directly without intermediaries

• Handles integrations and modernizations

• Uses Umbraco CMS for web projects

Services:

• Maatwerk .NET-applicaties

• Integraties en koppelingen

• Azure en cloud

• Modernisering en migraties

• CMS en webapplicaties

Contact Information:

• Website: www.codivo.nl

• Phone: +31 6 39196898

• Email: [email protected]

• Address: Nachtegaalstraat 7b, 8011 BV Zwolle

• LinkedIn: www.linkedin.com/company/codivo

8. WeAreBrain

WeAreBrain operates as a .NET development agency and builds applications using ASP.NET MVC along with Web API. The company develops desktop applications with Windows Forms or WPF and creates cloud solutions on Microsoft Azure. They implement microservices architectures and .NET Core projects that run across platforms.

The agency provides integration services and performance optimization for .NET applications while handling DevOps and CI/CD setups. WeAreBrain offers UI/UX design along with ongoing maintenance, security audits and technical support. The company follows agile methods and maintains clean code practices in their development work.

Key Highlights:

• Builds web applications and APIs with ASP.NET

• Works on desktop and cloud .NET solutions

• Implements microservices and integrations

• Provides maintenance and optimization services

Services:

• ASP.NET MVC and Web API Development

• Desktop Application Development

• Cloud Application Development

• Microservices Architecture Development

• Integration Services

• DevOps and CI/CD Implementation

Contact Information:

• Website: wearebrain.com

• Phone: +31 6 33 99 02 35

• Email: [email protected]

• Address: Laan der Hesperiden 166, 1076DX Amsterdam

• LinkedIn: www.linkedin.com/company/wearebrain

9. .NET Developers

.NET Developers delivers enterprise software development with ASP.NET as one of the available stacks under senior leadership. The company combines human architects with AI agents for faster delivery of ASP.NET applications while keeping quality control in human hands. They work across different technologies but maintain strong capabilities in Microsoft solutions.

The agency handles cloud-native architecture and modern development practices suitable for ASP.NET projects in the Netherlands. .NET Developers follows a structured process from discovery to deployment with transparent pricing. The company ensures architecture decisions and final reviews stay with experienced engineers.

Key Highlights:

• Supports ASP.NET in enterprise development

• Uses senior engineers with AI acceleration

• Works with cloud platforms including Azure

• Applies tested development standards

Services:

• Enterprise Development

• AI Engineering

• Cloud & Platform

• Modern Front-end

Contact Information:

• Website: net-devs.com

• Phone: +48 571 282 759

• Email: [email protected]

• Address: Obrzeżna 1D, 02-691 Warszawa

• LinkedIn: www.linkedin.com/company/net-dev

10. DVT

DVT offers custom software development services with expertise in Microsoft .NET for web, desktop and mobile applications. The company builds tailored solutions for enterprises that need new applications or enhancements to existing ones. They work with bespoke development to support business processes in the Netherlands.

The agency provides project-based custom software development and consulting services including code reviews and technical analysis. DVT delivers solutions through recognized experience in .NET development stacks while maintaining focus on practical implementation. The company operates with a presence in the Netherlands to partner on local projects.

Key Highlights:

• Builds custom web desktop and mobile applications

• Works with Microsoft .NET development

• Provides project-based custom software solutions

• Offers consulting with code reviews

Services:

• Custom Software Development

• IT Staff Augmentation

• Consulting Services

• Code Reviews

• Technical Analysis

Contact Information:

• Website: www.dvtsoftware.com

• Phone: +31 208 905590

• Email: [email protected]

• Address: Evert van de Beekstraat 354, 1118 CZ, Schiphol, The Netherlands

• LinkedIn: www.linkedin.com/company/dvt

• Facebook: www.facebook.com/DVTSoftware

• Twitter: x.com/DVTSoftwareUK

11. Netcompany

Netcompany delivers end-to-end IT services including development and maintenance with experience in ASP.NET projects for organizations in the Netherlands. The company handles business applications and core application modernisation while working with Microsoft technologies. They focus on system integration and custom development needs.

The agency supports cloud and infrastructure work along with digital experience solutions that can involve ASP.NET components. Netcompany provides application maintenance and operations services while guiding clients through modernisation processes. The company maintains a tech-agnostic approach but applies strong skills in relevant development areas.

Key Highlights:

• Offers custom development and modernisation

• Works on business processes and applications

• Handles system integration projects

• Provides application maintenance services

Services:

• IT Consulting and System Integration

• Business Processes & Applications

• Core Application Modernisation

• Cloud & Infrastructure

• Application Maintenance

Contact Information:

• Website: netcompany.com

• Phone: +31 15 303 0130

• Email: [email protected]

• Address: Prinses Beatrixlaan 35, 2595 AK The Hague, Netherlands

12. 21century.tech

21century.tech works with ASP.NET development through an AI-augmented approach that speeds up delivery while keeping senior oversight. The company builds production software where human engineers handle architecture and final quality decisions on ASP.NET projects. They focus on fast iterations for web applications and enterprise systems common in the Dutch market.

The agency delivers MVPs and feature work with daily progress updates and full human review on every line of code. 21century.tech ships to client infrastructure and maintains clear ownership in ASP.NET development efforts. The company operates with a practical process that starts from a client brief and ends with deployable solutions.

Key Highlights:

• Applies AI augmentation in ASP.NET work

• Maintains senior human control on architecture

• Delivers iterative ASP.NET development

• Focuses on production-ready code

Services:

• ASP.NET development

• MVP building

• Full-stack feature delivery

• Refactoring projects

Contact Information:

• Website: 21century.tech

• Email: [email protected]

Conclusion

Choosing an ASP.NET development company in the Netherlands ultimately comes down to how well the partner understands your specific situation and can adapt to it. The market here offers a nice mix of technical depth and practical business sense, which helps when you're dealing with everything from legacy system updates to fresh cloud-based builds.

What stands out after looking through the options is that the strongest fits usually come from companies that listen first and code second. Whether your project needs tight integrations, solid performance, or room to grow later, there's capable talent around. Take your time to talk with a few, share real details about your challenges, and see who clicks. In the end, the right match just feels smoother.