Telecommunication
Java
Liferay
Customer portal platform
“Through the collaboration, we gain new impulses and benefit from their technical expertise.”
Dominik Seitz,
Product Manager at R-KOM Regensburger
Telekommunikationsgesellschaft mbH
Case Study
Financial controlling SaaS
“From the very beginning, I received excellent guidance, and the solution concept became the perfect blueprint for our collaboration.”
Elke Limmer,
Managing Director, Zahlwerk GmbH
01
Challenge
A comprehensive Excel/VBA-based controlling tool had reached its limits. The solution was powerful but not scalable, difficult to maintain and not suitable as a SaaS product. To turn it into a viable business, it needed to become a modern, scalable web application.
02
Our work
- Defined the tech strategy and solution concept
- Designed and built a multi-tenant SaaS platform in .NET
- Integrated accounting data sources (e.g. DATEV)
- Implemented financial visualization, P&L and liquidity planning
- Embedded an AI assistant to support financial planning and user guidance
- Joined as venture partner with shared risk and long-term commitment
03
Impact
- Launched a scalable SaaS product replacing spreadsheet-based workflows
- Improved financial transparency and planning clarity for users
- 100+ paying users
- Foundation for recurring revenue and scalable expansion
Other Case Studies
Mobile App
Flutter
AI-powered recipe & shopping app
“369 Studio transformed our MVP into a scalable, production-ready product and built the technical foundation for sustainable growth and monetization.”
Julian Eberl,
Managing Director,
InnoNote UG
Fintech
Controlling
.NET
Financial controlling SaaS
“From the very beginning, I received excellent guidance, and the solution concept became the perfect blueprint for our collaboration.”
Elke Limmer,
Managing Director, Zahlwerk GmbH
Middleware
Nuxt.js
Industry
Industry 4.0 middleware
“When we unexpectedly lost a key role in the frontend development of Codabix v2, one thing was clear: we needed a fast, reliable solution. And that is exactly what happened – faster than expected. Within just seven days, all relevant topics were clarified in short, well-structured meetings and the contract was signed. What truly impressed me: already in the first week, proactive suggestions were made to optimize the architecture, along with security-related improvements that we immediately integrated into our planning. The UI/UX impulses have also proven to be exceptionally valuable to this day. We didn’t just find a high-quality replacement – we gained a true sparring partner who noticeably elevates the quality of our product development.”
Dominik Scharnagl,
Managing Director,
Traeger GmbH Industry Components
