Contact

Do you have a question, comment, or idea?

Let us know via the contact form. We will do our best to answer your question as quickly as possible.

Would you prefer to ask your question by phone? You can reach us during office hours at 0800-0221525.

If you would like to reach our office for business inquiries, you can do so by phone at: 0183-446500.

The HAK office is located in Giessen (the Netherlands).

P.O. Box 2, 4283 ZG in Giessen.

Hendrik Cornelis Hakstraat 1, 4283 KA Giessen

For navigation purposes, you can also use the address ‘Jagerspad 7, Giessen’.

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