Graph Tech USA


GTUS® Support System

Need assistance with our products?

Contact GTUS® at +1-772-569-0066 x307 or send E-mail to with details regarding your problem or issue.

Ask Markus

Markus Portmann, GTUS owner, and chief software engineer has been creating support documents for our customers for years and we would like to make these documents accessible to all of our customers.

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Graph-Tech USA

3200 North Kings Highway
Ft. Pierce, FL 34951


Phone: (772) 569-0066

Fax: (772) 907-6137

We’re available to answer your questions Monday though Friday 8am to 5pm EST.