GTT-TECHNOLOGIES
We help you navigate in chemical space.
Upcoming Courses: FactSage: May 11–14, 2026 | Calphad Optimizer: April 21–23, 2026 | ChemApp for Python: self-study online courses
Important: December 2025 error prevents all FactSage versions from starting as of January 1, 2026.
Details on the required patch in our newsletter | Patch installation guide
NEWS
Calphad Optimizer 3.0 is here, introducing XML support, parallel runs, and improved usability. Explore what’s new.
Users’ Meeting 2026: Call for Speakers now open!
Share your insights and join us in Aachen & online.
ChemApp for Python 8.3.4 enables faster, more realistic process modelling: Read more in our blog and user documentation.
The new FactSage 8.4 is here, packed with improved databases, smart simulation tools, and new features!
THE GTT UNIVERSE
SOFTWARE
Use our software to analyze a wide variety of technical problems - in metallurgy, energy conversion, materials design or materials informatics. Increase your understanding to improve your product and your productivity!
DATA
The principle aim of our thermochemical data supply service is to satisfy our customers' needs for consistent, carefully assessed data of known quality in an easily usable form.
CONSULTING
With our consulting services you can reap the benefits of technical thermochemistry right away!