About

Zimmerman & Zimmerman is a social enterprise based in the heart of Amsterdam.

We create online tools for governmental organisations, multi-laterals and NGO’s which make it possible for them to publish and visualise their (open) data via transparency & financial flow web-portals in order to show the public where the funding, mostly tax money is coming from and how it’s being spend in for example development aid countries. Examples can be found in our showcases section.

We work together with the following partners & clients:

If you have any questions about these projects or have a new business inquiry please contact Siem Vaessen or Tristan Vaessen.

Open data engine

We have developed, and maintain, the codebase for the data visualisation engine OIPA. Which renders IATI compliant XML for storage and re-use via its rich API endpoints. The data engine is open-source and has been published under the AGPL-license. It makes use of several technical components, which enable direct data transfer from any IATI dataset residing at the IATI registry to a local OIPA database. As soon as this data is available, the API will communicate with it, enabling one to search, publish, aggregate and visualise IATI data.

Contact

Oostelijke Handelskade 12H
1019 BM Amsterdam
The Netherlands

Tel: +3120 3318668 or +31203312967
https://twitter.com/zimmzimmerman

Information about Zimmerman & Zimmerman can be found at the Dutch Chamber of Commerce number: KvK 51018586

Meet the team

team