These are some of the most common questions about

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Who are the people behind

Sebastian Herke, Founder of the German company HTA Circuit Booking GmbH as the Managing Director and Carsten Tilke (Managing Partner of Tilke GmbH & Co. KG).

Why are there two companies with different legal entities listed under "Contact"?

For legal and technical reasons, the US business of is handled by its wholly-owned subsidiary HTA Circuit Booking Inc. If at least one of the two transacting parties (customer/circuit) is domiciled in the USA or Canada, HTA Circuit Booking Inc. becomes the legal broker.


What do I do if I did not receive a confirmation email after the registration?

If you have not received a confirmation email, try to register again here. You should normally receive your confirmation within 24 hours. Note: The confirmation email will be sent to the email address you enter during the registration process.

If you do not receive an email within 24 hours, please contact us.