When no off-the-shelf software fits your process.
We build .NET web applications your team enjoys using and your IT enjoys running.
Tiefgrün: live machine data in the field, without sitting in the cab.
More on ASP.NET Core developmentWe build software that matters Custom .NET development from Switzerland
For processes no off-the-shelf software covers. A small senior team with a Microsoft MVP that stays with you from the first sketch to the release.
No off-the-shelf software fits your process. We build it as a custom .NET application and take it live.
Clients
- Reishauer
- Tiefgrün
- Adaptigent
- Munichain
- Microsoft MVP on the team
- bUnit maintainer, 20M+ downloads
- Swiss Made Software
You talk to the people who write your code. We test from day one. And when the project ends, your code and know-how stay with you.
How we help
At the core: software you can't buy off the shelf.
When every change takes longer than the last.
Reviews, technical leadership and step-by-step migrations from .NET Framework or PHP.
More on .NET architectureWhen the answer is buried in your data.
Chat with your data, reports by prompt and MCP servers for existing applications.
More on AI agents for your softwareWhen your team needs to get better, faster.
C#, LINQ, ASP.NET Core and Blazor, off the shelf or tailored.
More on C# and web development trainingsWhen your users would rather work around the interface.
Interfaces that exclude people cost you customers, and the European Accessibility Act has applied in the EU since June 2025.
More on UX/UI and accessibilityMeet Our Team
Experts in .NET software development and architecture.
Microsoft MVP
Microsoft MVP in Developer Technologies, international conference speaker, and creator of popular .NET open source libraries with over 20 million downloads.
- Maintainer of bUnit (Blazor Testing Framework)
- Speaker at NDC Oslo, .NET Day Switzerland
David Fiebig
Founder && Solution Architect
Solution Architecture
16+ Years Experience
Expert solution architect with extensive experience in enterprise software development and team leadership. Currently serving as a strategic advisor to CTOs and technical teams.
- Former team lead of 8 developers
- Enterprise Architecture Expert
Alain Zanchetta
UX Designer && Industrial Design Specialist
Industrial Design
UX Specialist
Accessibility Expert
UX designer and industrial design specialist with a strong foundation in product development. Experienced in leading innovation projects and delivering research-based, human-centered solutions across digital and physical domains.
- Award winning Industrial Designer
- Human-centered design advocate
Community Commitment
We are deeply committed to the .NET ecosystem. Beyond our client work, we actively contribute to open-source projects and provide free tools for developers.
Active contributors to bUnit - the testing library for Blazor components.
Check out our .NET Developer Toolbox for JSON conversion, JWT decoding, and more.
Free eBook
LINQ explained with sketches
Deferred execution, IEnumerable vs. IQueryable and the traps in between - the mental models behind LINQ, sketched so they stick. Free, no sign-up.
We invest significantly in ongoing education and professional development, including open-source contributions, conference attendance, and specialized training. Staying current and open-minded is fundamental to our approach.
Selected Customers
Recent Projects & Achievements
With BitSpire we found a great partner who helped us take our frontend to a new level at incredible speed.
Dr. Christian Dietz
Head of Digital Technology, Reishauer AG
Translated from German.
Enterprise Monitoring Solution
Collaborated on implementing a monitoring platform, optimizing customer processes and system performance
Precision Weeding PWA
Built a mobile-first PWA so operators can monitor live machine data from anywhere in the field - no need to stay in the cab
Installable as a native app with offline support and guided error handling for critical field scenarios
.NET Framework Migration Consulting
Provided expert consulting for migration from .NET Framework to .NET 8, leveraging extensive experience from previous successful migrations
Documented migration strategy and best practices, shared through technical blog posts to benefit the wider .NET community
Architecture & Development Consulting
Provided expert consultation on data modeling and architecture for Blazor Server application
Conducted comprehensive architectural review and optimization of existing data models
Get In Touch
Tell us what you're planning.
You talk directly to the people who will write your code.
- You get in touch: We do our best to reply within 24 hours.
- We get to know each other: 30 minutes. You talk, we ask. No pitch.
- We decide together: How to move forward, or honestly, that we're not the right fit.
