Did you not find what you were looking for on our website? Do you want to know more about our services? Or are you considering donating documents (diaries, photos, letters, et cetera) to NIOD?

Contact us through the contact form or visit Question and Answer for our frequently asked questions.


We are unable to answer all questions in writing. So it may well be possible that you are invited to visit our reading room to find the answer to your question yourself or that we refer you to another organisation.


Answers to questions that require research by our staff are not free of charge. NIOD charges a research fee of € 25.00 per 30 minutes.

Our staff will make an estimate of the amount of time that will be spent on research and send a quote to the person asking the question. The assignment is cancelled if our quote is not accepted within two weeks. If the quote is accepted, NIOD will, in principle, provide the answer within three weeks.

Although our staff’s research is conducted meticulously, we cannot guarantee that the information requested is available in our collections.

An invoice will be sent when the research has been completed.