Steinmühle International High School

Steinmühle Boarding School: Learn languages. Experience diversity. Grow together beyond boundaries.

At our high school’s International Division and at the Steinmühle boarding school, young people from different countries and cultures come together. They learn with and from one another, form international friendships, and experience a community characterized by openness, mutual respect, and solidarity. Here, an open-minded attitude toward the world is not just taught—it’s lived every day. We provide individualized support to young people as they work toward graduation and open up a wide range of opportunities for them—for their future in Germany and around the world.

Dr. Whatson Visits the Steinmühle plus-STEM Boarding School

STEM Enthusiasm Meets Boarding School: Cedric Engels, aka “Dr. Whatson,” visits Steinmühle and enthusiastically presents our plus-STEM boarding school program for talented STEM students.

Watch the video

Together with Strong Partners

You won’t be on your own: Together with Philipps University of Marburg, the Central Hesse Student Research Center (SFM), and our plus-MINT partner schools, we create a wide range of opportunities to help you develop your talents in a targeted way.

Bilingual starting in 5th grade

Our bilingual educational program begins in the International Elementary School and continues in a separate international high school track starting in 5th grade. Through 10th grade, our students learn in dedicated international classes taught in German and English.

Ideas become reality:
Develop your own projects, experiment, and find creative solutions to exciting challenges.
Research instead of theory:
Explore real research questions and discover how science works.
Show what you can do:
Enter competitions and test your skills against other STEM talents.
Early enrollment included:
Particularly bright students can begin a science degree program while still in high school.

Enthusiasm matters—not your wallet

We want young STEM talents to be able to develop their skills. That’s why BAföG funding of up to 100% of boarding fees is available for our plus-MINT boarding school spots.

Steinmühle is one of the select plus-MINT boarding schools in Germany. Here you’ll find an environment where your curiosity is nurtured, your strengths can flourish, and you can exchange ideas with other STEM enthusiasts—in class, during projects, and as part of boarding school life.

“It really pushed me beyond my limits.”

“For me, Plus-MINT meant personalized support in carrying out my own projects, interacting with like-minded peers, and gaining many new experiences. In the process, I really pushed myself—both academically, through independent project work, and personally, through the challenges of living closely together at the boarding school.  When I think back on my time at Steinmühle, I picture us swimming in the Lahn River in the summer, playing badminton, and talking shop in the common room in the evenings over pancakes and card games.”

Clara Steiner

(2025 high school graduate in the plus-MINT program, participant in the national finals of “Jugend forscht,” and a mathematics student at Philipps University of Marburg while attending high school)