There are several ways to contact TNO. On almost every page a direct contact is given. You will also find several entrances below.

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If you want to be connected to your contact person within TNO you can call +31 88 866 00 00. Or you can search this site for a contact, however not all our employees are listed on our website.

TNO Infodesk

Do you have a question about specific knowledge within TNO please contact the Infodesk. Our Infodesk is the first point of contact for governments and companies, big or small. 


For more information about vacancies or work placement please go to Career.

TNO Reports

To find a TNO report or publication please use our search engine.

TNO Updates

Would you like to be kept informed of interesting new items on TNO Insights?
Subscribe for TNO Updates.


Find all TNO locations here

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Location The Hague - New Babylon

Anna van Buerenplein 1
NL-2595 DA The Hague

Complaints and requests for information

Letters with requests for information with regard to the Law on transparency in Public administration(WOB), appeals, complaints and all legal documents are to be sent directly to:

TNO Board of Management
C/O Corporate Legal Department
PO Box 96800
NL-2509 JE The Hague

In the event appeals with regard to legal disputes and/or public administration questions are sent to a different address and/or department than stated above, the legal term in the applicable law will enter into force from the moment the appeal is received by the Board of Management of TNO.


In principle TNO does not do any sponsoring as TNO is a nonprofit organization and does not have its own budget. Funds are made available to TNO by the government and other clients for investment in research and innovation.

Accounts Payable

If you want to be connected to the accounts payable department you can call +31 88 866 62 88.

TNO Pension fund

The TNO Pension fund has its own website (in Dutch).

Press Office

Journalists looking for more information about the work of TNO can contact our Press Office.


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