Safe software for (semi-)governments

In software made for large groups of citizens, privacy and security must be embedded in the design.

That is why we help municipalities and recently the Ministry of Health with safe open-source software for various use cases.

Projects we worked on include safeguarding privacy in the CoronaCheck app and the secure exchange of personal data of citizens with identity wallet IRMA.

Our subjects

Security

  • Secure development
  • Threat analysis & code audit
  • Authentication using DigiD, IRMA

Privacy by Design

  • GDPR and data security
  • Pilots with identity wallet IRMA
  • Integration with IRMA

Development & operations

  • Open-source development
  • Common Ground
  • Secure operations

Tech we like

IRMA. A privacy-friendly digital passport that enables you to disclose only the relevant attributes of yourself. Read more ...

Featured project: ID-contact

For ID Contact we researched the possibilities of digital identification: how can residents organize their personal government affairs in a simpler and more reliable way? By telephone, via chat or via a video call.

The ID Contact innovation pilot is a collaboration between the municipalities of Arnhem, Nijmegen and the Drechtsteden and knowledge partners such as the Tax Authorities and iHub (Radboud University).

Within the ID Contact team, Tweede golf provided the technology: the software that makes secure digital identification possible.

Working with Tweede golf in practice

We are a close group of engineers and developers with a background in information security, mathematics and computer science. We think active collaboration is the most important condition for success. Working with us entails close and regular (daily/weekly) working-together with your product owner as the captain of the development team.

We have a long-term focus: we like to collaborate as long as possible and have no plans to sell our company. We hope we can continue to do this until we retire. We believe that only with that perspective can you create an environment in which you can do your best work together continuously.

Whatever project you work on with us, large or small, you will always encounter a strong engineering mindset, the search for ever better software and tools, for elegant solutions and for secure and privacy-friendly software.

More on how we see the world

IRMA Innovation Lab

Want to try working with us? Then our IRMA Innovation Lab is an interesting option. A short-term project with a fixed price and deliverable: a working demo that shows what value can be achieved with IRMA in a case that is relevant to you.

More practical experience

Blogs and cases you can use to judge our experience by

Featured project

Privacy by Design Foundation


Tweede golf is preferred partner of the Privacy by Design Foundation, the founder of IRMA. We continu to contribute to technical support of IRMA, to the IRMA app for the City of Amsterdam and we work on IRMA innovations together with SIDN.

Privacy by DesignIRMA

Clients & partners

Gemeente AmsterdamClient
Ministerie van VWSClient
Privacy by Design FoundationPreferred partner
SIDNInnovation partner

Let's talk?

Do you want to know if we can help you with your project? Call or email Hugo for a 10-minute chat.