research engineers


This website is maintained by Van Holsteijn en Kemna BV (VHK).

Last updated 16 July 2021.

Collected information

If you browse through the website, read pages, or download information, we will gather and store certain information about your visit automatically. This information is collected by the hosting service provider for this website, and made available to personnel of VHK.

This collected information does not identify you personally. We automatically collect and store only the following information about your visit:

  • The Internet domain (for example, "") and IP address (an IP address is a number that is automatically assigned to your computer whenever you are surfing the web) from which you access our website;
  • The type of browser and operating system used to access our site;
  • The date and time you access our site;
  • The pages you visit; and
  • If you linked to our website from another website, the address of that website.

Use of collected information

We use the information to learn about the number of visitors to our site and the types of technology our visitors use, to help us make our site more useful to them. We do not track or record information about individuals and their visits. Raw data logs are used for no other purposes and are scheduled for regular destruction within 6 months.

Where identifying information is asked of you (e.g., to respond to an information request, to send us a comment or question, or to utilise one of our systems designed to provide or store information for you), it is used only for the stated purpose of the tool or system you are using. In that case we will request only the information necessary to fulfill your enquiry or request. We do not use your information for direct marketing purposes, automated decision-making or profiling.


The website and management have taken appropriate technical and organisational measures to protect data against destruction, loss, alteration, or unauthorised disclosure or access. The collected information is only accessible through password-enabled or secure interface access points.

For site security purposes and to ensure that this service remains available to all users, this system monitors network traffic to identify unauthorised attempts to upload or change information, or otherwise cause damage.

In order to protect our legal interests, in the event of a subpoena or search warrant, we may voluntarily provide to all legal authorities any and all information requested, with or without contacting you.


In all cases, we do not sell or rent your information to third parties. Except for authorised law enforcement investigations, no other attempts are made to identify individual users or their usage habits.

External links

This website has links to other websites. This does not constitute an endorsement of their (privacy) policies, services or products. Once you link to another site, you are subject to the privacy policy of the linked site. We recommend you review their policies as well.

Changes to the Policy

We may change this policy from time to time, and if we do we will post the updated policy on this page. If you continue to visit our site after those changes are in effect, you agree to the revised policy. If the changes are significant, we may provide more prominent notice or get your consent on the new policy.

Feel free to contact us if you have any questions regarding information you supply to us. For more information, general enquiries and complaints about data protection, you can also contact the Dutch DPA.


Head office

Vlinderweg 2
2623 AX Delft - Netherlands
T :

Branch office

Tribes Brussels Central Station
Kolonienstraat 56
1000 Brussels - Belgium