Digital Engineering for thermal, process and energy systems

Step into the future of engineering with our tools and services for system simulation, thermodynamics, control engineering and optimization.

Learn more

We enable companies to understand and improve complex technical systems

Engineering for everyone

Support your engineering, marketing or sales teams with state-of-the-art simulation and cloud technology packaged as modern web application.

Get your app
A sales man in business outfit showing a laptop with an engineering simulation app for technical sales purposes.

What's new at TLK Energy?

September 10, 2021

Bring simulation into web: sim.tlk

From expert software to simulation in the browser – Bring Simulation into Web!

With sim.TLK we have developed a user-friendly environment, which allows you to simulate your models online. Models based on the FMI standard can be quickly made available to all users in appealing web tools. An exchange is now very easy. Just log in and simulate! Whether tablet or laptop is not important. No installation of software and no problems with updates! You can learn more about this in this blog article, or simply contact us.

September 2, 2021

Job Offer: Digital engineer at TLK

Are you looking for a job as a digital engineer? Do you want to use state-of-the-art simulation and modeling tools to solve interesting tasks?
We simulate thermal, process and energy systems and help our customers to develop and improve their products and processes. We are looking forward to your application.

See all news

Our clients

"In our research projects, we perform dynamic simulations and optimizations. We work with different operating systems (e.g. Windows, Linux) and often have very specific requirements for the software interfaces. Here, the communication with TLK Energy was always very good: software interfaces were adapted for us in a short time and questions were answered competently."

Mirko Engelpracht

RWTH Aachen University

"From formulating the task in the proposal phase to the completion of the project, we felt very well looked after. Technical depth was achieved very early on in the close-knit status meetings, which brought interesting discussions and knowledge gains for us. It's wonderful that projects like these exist."

Dr.-Ing. Rüdiger Noack


"The collaboration with TLK Energy was very straightforward and always solution-oriented. Together we have created a web-based ventilation simulator that helps us to communicate the benefits of our Airflow products better.“

Simon Morherr

AIRFLOW Lufttechnik GmbH

“TLK Energy has been instrumental in developing modeling tools that allow TNO to advance innovative heating and drying solutions for the industry. We appreciate the open communication and the fact the TLK Energy team consistently exceeds our expectations.”

Andrew Marina


Web resources for engineers

Ready to start a new project?

Call us at +49 241 412 50 645, e-mail us to or find us on LinkedIn.