Customer Case

City of Zaanstad saves €2.4 Million by replacing Legacy System with Betty Blocks

City of Zaanstad saves€2.4 Million by replacing Legacy System with Betty Blocks

City of Zaanstad saves €2.4 Million by replacing Legacy System with Betty Blocks

City of Zaanstad transforms Legacy Systems with Betty Blocks, empowering government innovation through low-code.

City of Zaanstad transforms Legacy Systems with Betty Blocks, empowering government innovation through low-code.

Industry

Government

Use Case

Portals

Augmentation

Consolidation

City of Zaanstad transforms Legacy Systems with Betty Blocks, empowering government innovation through low-code.

Industry

Government

Use Case

Portals

Consolidation

Zaanstad city challenges the limitations of Legacy Systems

Zaanstad city challenges the limitations of Legacy Systems

IT pros in the government sector know that software projects in their industry are notoriously prone to failure. You've probably heard horror stories about governments trying to develop projects themselves, only to end up in a bigger mess than they started- and billions of dollars in the hole. "Governments aren't used to making their own software", says Tom Uleman, City of Zaanstad Senior Information Manager. As a result, common practice is to look for a standardized SaaS package that will, best case scenario, fit only 70-80% of their needs.

Zaanstad had a familiar problem with its legacy GWS system. They'd been using it for 25 years, but it was preventing the organization from moving forward because it could only support inefficient processes. Any time Zaanstad wanted to make a change, for example, all 300 municipalities on the system needed to agree.

With the Betty Blocks applications at the core of our youth care administration, we save €620,000 annually - and we've emerged as a leader among municipalities.

Tom Uleman | City of Zaanstad Senior Information Manager

With the Betty Blocks applications at the core of our youth care administration, we save €620,000 annually - and we've emerged as a leader among municipalities.

Tom Uleman | City of Zaanstad Senior Information Manager

With the Betty Blocks applications at the core of our youth care administration, we save €620,000 annually - and we've emerged as a leader among municipalities.

Tom Uleman | City of Zaanstad Senior Information Manager

Replacing legacy step-by-step

with custom-built applications

Replacing legacy step-by-step with custom-built applications

Tom knew the city needed to take control of their software. “We know what functionality is really needed. We didn’t want someone else to run away with unnecessary features that would complicate things.” When the municipality needed a new system for their youth care services, Tom saw an opportunity. “We had a vision on how youth services should be handled in the region but no available software could support this vision. The application didn’t exist yet.”

"So Zaanstad created it themselves, with development partner Ilionx. They had the first version of the application in just 10 days. Once live, the application increased administrative efficiency for youth care programs by 40%. And where the GWS system required 10 backend developers to operate, Zaanstad now only needs 4 to maintain.

First application just live in 10 days
7 applications live in just 10 days
Continuous iteration and improvement as a standard approach

Think it, build it

From prompt to prototype in minutes

Experience how fast and easy it is to turn your idea into something tangible with Betty Genius. Betty Genius is part of the Betty Blocks platform, allowing you to turn prompt-based prototypes into fully custom, enterprise-grade applications that connect to any core system.

Taking control of their software

Taking control of their software

The transition to low-code development delivered both immediate gains and long-term impact. Processes became faster, more efficient, and easier to manage, while the organization significantly reduced its dependency on large development teams and external systems. The initial youth care application was so successful that the City of Zaanstad has replaced more modules of its legacy system with a total of 7 Betty Blocks applications in 3 years. Today, the change has them rethinking how they approach their IT projects entirely and enables them to keep innovation at the forefront. “It’s about doing and experimenting,” says Tom.

“Now after seeing the success of our 7 Betty Blocks applications, we think this is quite a good way to replace more of our legacy systems. And we have more freedom to innovate by being able to develop new concepts and applications ourselves.” Beyond these measurable results, the biggest shift was cultural. The organization moved from being constrained by technology to being empowered by it - able to experiment, adapt, and innovate continuously. This positioned them as a forward-thinking leader within the public sector.

The results speak for themselves. By leveraging low-code development and fusion teams, NRF transformed how legal and business processes are handled, delivering immediate, measurable impact across the organization.


NRF has now built over 27 low-code applications that optimize internal processes and support client-facing solutions.


With a growing library of reusable application components, each new app is built faster and easier than the last. Business users are fully independent in their development, without relying on designers or developers.

Why Zaanstad City chose Betty Blocks

Why Zaanstad City chose Betty Blocks

Why Zaanstad City chose Betty Blocks

By continuing to expand the role of Betty Blocks within its core application landscape, Zaanstad City is taking further steps toward a fully flexible and future-proof IT environment. More social services applications are being transitioned to the platform, while newly developed solutions are also being made available to other municipalities to encourage collaboration and knowledge sharing.


At the same time, Betty Blocks provides the freedom to take full control of their digital future. By removing dependency on rigid systems and external vendors, the organization can now experiment, iterate, and launch new solutions quickly. This transforms development from a one-time project into an ongoing process—ensuring they remain agile, efficient, and ready for what’s next.

By continuing to expand the role of Betty Blocks within its core application landscape, Zaanstad City is taking further steps toward a fully flexible and future-proof IT environment. More social services applications are being transitioned to the platform, while newly developed solutions are also being made available to other municipalities to encourage collaboration and knowledge sharing.


At the same time, Betty Blocks provides the freedom to take full control of their digital future. By removing dependency on rigid systems and external vendors, the organization can now experiment, iterate, and launch new solutions quickly. This transforms development from a one-time project into an ongoing process - ensuring they remain agile, efficient, and ready for what’s next.

Get in touch

Stop waiting for
your roadmap to catch up

Don’t let a rigid ERP stall your AI roadmap. Use the Betty Blocks orchestration layer to build the portals and autonomous agents your core systems can’t, at the speed of a prompt.

Get in touch

Stop waiting for your roadmap to catch up

Don’t let a rigid ERP stall your AI roadmap. Use the Betty Blocks orchestration layer to build the portals and autonomous agents your core systems can’t, at the speed of a prompt.

Think it, build it

From prompt to prototype in minutes

Build exactly what you envision with AI and low-code. Bring business and IT together to co-create applications that combine domain expertise with enterprise-grade governance.

Think it, build it

From prompt to prototype in minutes

Build exactly what you envision with AI and low-code. Bring business and IT together to co-create applications that combine domain expertise with enterprise-grade governance.

Think it, build it

From prompt to
prototype in minutes

Experience how fast and easy it is to turn your idea into something tangible with Betty Genius. Betty Genius is part of the Betty Blocks platform, allowing you to turn prompt-based prototypes into fully custom, enterprise-grade applications that connect to any core system.

Think it, build it

From prompt to
prototype in minutes

Experience how fast and easy it is to turn your idea into something tangible with Betty Genius. Betty Genius is part of the Betty Blocks platform, allowing you to turn prompt-based prototypes into fully custom, enterprise-grade applications that connect to any core system.

Get in touch

Stop waiting for your

roadmap to catch up

Don’t let a rigid ERP stall your AI roadmap. Use the Betty Blocks

orchestration layer to build the portals and autonomous agents your

core systems can’t, at the speed of a prompt.

Build the portals and

AI Agents your ERP can't.

© 2026 Betty Blocks. All right reserved.

All Systems: Operational

Build the portals and AI Agents

your ERP can't.

© 2026 Betty Blocks. All right reserved.

All Systems: Operational