Request Support

Our experienced support team is here to assist you with difficulties installing the software, technical questions related to the use of our software or databases or anything else you may need.

Online Help

Before contacting support, have you searched the Help to try and find an answer to your question? In Thermo-Calc press F1, or from the main menu select Help > Online Help. Otherwise, please use this form below to submit information to

Local Support

We have local agents in many countries around the world who can provide service in the local lanaguage and timezone. You can contact your local agent directly in countries with local offices. 

Support Appointments

If you have an appointment to receive online assistance, click the link below and enter your password to join the support session. Join your support session

Request Support

Some important things you can do to help us respond more quickly are as follows.

  • For potential licensing and installation problems, go to our license and installation information page and gather this information from within Thermo-Calc.

  • For support with TC-Python, run the diagnostic script included on our TC-Python page and paste it in the dialogue box in the form below.
  • Your site number can be found in the license information, on an invoice or any correspondence from Thermo-Calc.
  • For calculation, software and database-related queries, it is important that we can reproduce the problem. Attaching a macro or project file to this form can be very helpful.
  • Take a screen shot of an error message or copy it from the Event Log.
  • Include as much detail as possible and check our roadmap for a list of supported operating systems and software versions.