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Quester Software-Products - Contact information

Quester Software-Products

Thomas Klaus Quester

Maybachstrasse 10b

D-22177 Hamburg


Value added tax identification number in accordance with § 27a value added tax law: DE 213594592

Content wise responsible person in accordance with § 10 paragraph 3 MDStV: Thomas Quester

All contacts


+49(0)40-987 668-56 / -57


+49(0)40-987 668-58

General inquiries

Web site DE & EN

Web site EN & DE

Product support


Support Form


Support (E-Mail)


Forum - EN


+49(0)40-987 668-56

MSN Messenger (Chat)

Sales & Marketing





+49(0)40-987 668-57


+49(0)40-987 668-58

Product support - International accessibility via Phone and Fax

To Support Phone +49(0)40-987 668-56






Germany, Hamburg

+49(40) 987 685 6

+49(40) 987 6858



+43(72) 051 321 8


VOIP forward

USA, New York

+1(347) 727-4859


VOIP forward

Brasil, São Paulo

+55 (11) 2626 5773


VOIP forward

Brasil, Recife, PE

+55(81) 332 301 06


VOIP forward

Free World Dialup




Please note that the VOIP numbers are connected to Germany and may not always be connected. We are available Monday to Friday between 08:00 GMT+1 am until 05:00 pm GMT+1 (about 03:00am until 01:pm New York time).


Terms of use and legal restrictions - Links to third-party Websites


Our Web sites may provide links to third-party Websites for your convenience and information. If you access those links, you will leave our Web site. We does not control those sites or their privacy practices, which may differ from our Web site. We has not reviewed all of these third-party sites and does not control and is not responsible for any of these sites or their content. Thus, we does not endorse or make any representations about them, or any information, software or other products or materials found there, or any results that may be obtained from using them. If you decide to access any of the third-party Websites linked to this Site, you do this entirely at your own risk.
With the use of these Websites you declare yourselves in agreement with the appropriate use conditions.


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