In Amsterdam, De Regenboog Groep is committed to an inclusive city where everyone has a place and where we strengthen each other. The Electronic Client Record (ECR) plays a crucial role in this. To ensure the continuity and further development of the system, we started a project in February 2025 focused on maintenance and modernization.
Service and technology
Discovery, Consultancy, Legacy Transformations, Symphony PHP


A partnership for the future
De Regenboog Groep faced the challenge of structurally maintaining and further modernizing their ECR. There were various wishes for new functionalities and improvements.
The foundation sought a partner who not only offered extra capacity and technical expertise but also prioritized collaboration with the current team within the foundation and the implementation support agency.
Support, maintenance, and further development of the ECR System
A well-functioning ECR requires a deep understanding of the organization, its processes, and users. How do we approach this?
Discovery Phase
We started with a thorough Discovery phase, during which we got acquainted with the organization and performed an extensive analysis of the existing system. We mapped out the current status, architecture, and interdependencies.
Further Development
By combining replacement, rewriting, and adding both existing and new code and functionalities, we will focus on modernizing and future-proofing the ECR.
This will lead to a more stable and reliable web application with improved performance and room for future expansions.


Why De Regenboog chose Toomba
Thanks to our collaboration, De Regenboog Groep will be able to continue relying on an efficient and future-proof ECR.
- Expertise in ECR modernization: Experience with modernizing complex ECR systems.
- Thorough approach: Our Discovery phase ensures a deep understanding of the situation and needs.
- Custom solutions: Technical solutions that meet specific client needs and requirements regarding data security and working methods (ISO 27001).
- Focus on results: We strive for concrete improvements that optimize business operations.
- Strong collaboration: Apart from the technical expertise we can offer, it’s equally important to ensure a good human connection between teams. In this collaboration, we see that both our teams can work together well, which will lead to the best results.
Are you curious how we can modernize your system and further support your organization? Feel free to contact us!





