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03.10.2025
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How Intergamma gained control, improved software quality, and strengthened security with Sigrid®

Software Improvement Group
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Modern technology powering e-commerce and in-store logistics

 
Intergamma is the company behind the iconic Dutch DIY brands GAMMA and KARWEI. With around 400 franchise stores and over 10,000 employees across the Netherlands and Belgium, it is the undisputed market leader in the Benelux home improvement sector.  
 
Most stores are operated by independent franchisees, who are also shareholders — making Intergamma’s operations a unique blend of scale, autonomy, and alignment. Supporting this entire ecosystem is a dedicated head office team of 450, including a 50-person in-house Technology department responsible for building and maintaining the critical software systems that power everything from online ordering to in-store logistics.

The need for control across a fast-moving software landscape

 
Intergamma’s digital platform, from e-commerce to in-store logistics, is a vital part of its hybrid retail model. Even with a strong Technology team, without objective insights into the quality and maintainability of their code, it’s more challenging to continuously deliver new functionality while keeping costs down.
 
Additionally, as Intergamma increasingly relies on open-source components, ensuring security, license compliance, and proactive management of these libraries remains a top priority, particularly as security threats and compliance risks continue to grow.
 
Intergamma’s team wanted a solution that would help them answer the following key questions:
  • Is our codebase sustainable and secure?
  • How do we demonstrate the quality of what we’re building to management?  
  • How can we set and track measurable goals for our developer team?

The solution: driving transparency, quality, and alignment

 
To address these challenges, Intergamma partnered with Software Improvement Group and implemented the Sigrid® platform across its software portfolio.

“We chose Sigrid to validate the strength of our code base, ensuring our foundations are as robust as we believe. This allowed us to focus our investments on targeted improvements and bolster our security, turning insight into action for a safer, stronger product.” — Gijs Zijderveld, Head of Technology at Intergamma.

Fact-based and unbiased quality metrics

 
Building robust and secure software is one challenge, but verifying that it truly meets those criteria is another. With Sigrid, Intergamma’s Technology team gained clear control over the quality of their codebase.
 
Given the variety of systems in Intergamma’s digital platform, there is a lot of context to consider. To set objective standards for measuring code quality, Sigrid employs a technology-independent source code analysis, benchmarking it against the market. In addition, SIG’s Maintainability model is certified by TüVIT and based on the ISO 25010 standard for software product quality, and is updated annually to accommodate new technologies, frameworks, and tools. This gives Intergamma a fact-based approach to monitoring code quality.

Improving security posture and acting on prioritized findings

Sigrid continuously scans Intergamma’s software portfolio to uncover vulnerabilities in the source code. It ranks risks by severity and impact, and maps findings to the OWASP Top-10, which identifies the ten most critical risks in web application security.  

While a high security rating doesn’t guarantee complete protection, it does show that security is considered throughout the development process, reducing the likelihood of vulnerabilities. 

A detailed open-source analysis (SCA)

With Sigrid, Intergamma can effectively address vulnerabilities, license compliance, and legal issues in their libraries. In addition, Sigrid’s Open-Source Health feature includes a benchmark-based rating system that’s aligned with current market data and industry best practices. 

Custom objective setting

By defining custom technology objectives based on priorities and business context, Intergamma can track progress in Sigrid and prioritize the right improvements. Enabling them to align software efforts with business priorities. 

The results: clear control, measurable progress

With 81 person-years (PY) of code analyzed, including 48 PY of changed or new code at an average quality rating of almost 4 stars, Intergamma can now demonstrate that its development efforts are not only productive, but robust and secure. 

“We are proud to empower Intergamma to enhance quality and security in critical areas, track progress, and secure management buy-in more effectively.” – Luc Brandts, CEO of Software Improvement Group. 

  • Improved transparency for all stakeholders, including developers and leadership 
  • Cost savings by having more maintainable code 
  • Security findings mitigated through proactive monitoring and remediation 
  • Majority of systems now compliant with security goals

Want to gain full control of your software portfolio?

Let’s talk about how Sigrid® can help your organization boost quality, reduce risk, and align software with business priorities. 

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