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Learn German.
Own the Room. 

German Coach for Authentic Business Communication

Boost your German skills quickly, flexibly and precisely — whether you’re flying solo, in a small team, or across your entire company. With proven HR and storytelling methods, I’ll take you and your group to the next level in no time.

Your Options

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Ready for ...?

Independence Booster
Your intensive 1:1 training tailored to your needs.

Next Goal Sprint
Your turbo preparation for upcoming tests or job interviews.

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Rather easy going ...?

Team Comfort
Grab 2–5 friends, speak with ease, stay motivated, and save money.


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Got it all worked out...?

Teamplayers Corporate
6-10 people on site strengthen the team spirit and promote an open communication culture.

Teamlead Abroad
Your premium program for business communication. 

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About me

Hi, I’m Karin Ostertag,
German Communication Coach in Berlin.

I help international professionals speak German with clarity, confidence, and authenticity.

With roots in the U.S. and Berlin as my home, I know what it takes to build language skills that truly work.

My approach is dynamic, practical, and focused on real success — in interviews, meetings, and everyday life. And most of all, I love good stories.

Ready to level up your German together? Then please, tell me your story!

What's in the Package?

You’re seeking intensive, flexible German training with a clear goal?
Independence Booster makes you more self-reliant than before!

Independence Booster
Your Intensive Program
Five 90-minute sessions (10 teaching units) over 2.5–5 weeks. Deep, one on one training for exams, client conversations or everyday fluency—plus a free unit when you book another 10 unit package.

You want to be fully prepared for your exam, interview or meeting in no time? Next Goal Sprint is your turbo start!

Next Goal Sprint
Your Turbo Start in 1–2 Weeks
Two intensive 90-minute sessions (4 teaching units), fully tailored to your next goal. Achieve rapid progress in a focused 1:1 setting—perfect for a fast, goal driven kick off.

Tired of flying solo? You and your peers can practice together while cutting costs!
Team Comfort is your relaxed hybrid model.

Team Comfort
Flexible Group Training (2–5 Participants)
Hybrid or online format: five 90-minute sessions (equivalent to 10 teaching units). Set personal goals, benefit from peer motivation, and reduce costs by inviting others to join your learning group.

You want to boost the company on site in communication and corporate culture? Teamplayers Corporate sets your team on the path to success!

Teamplayers Corporate
On Site Corporate Course (from 6-10 Participants)
Five 90-minute sessions (10 teaching units) designed to boost team cohesion and communication through team-building, client meetings, and company culture exercises. Extendable in additional 10-unit blocks.

You’re a teamlead and want to master business terminology and storytelling?
Teamlead Abroad is your 1:1 premium program!


Teamlead Abroad
Your Premium Program for Business Communication & Storytelling
Ten 90-minute sessions (20 teaching units) over 5–8 weeks
Become a master in client pitches, event communication and own the room!
Fully customized to your leadership role, with a flexible schedule. 

Ready to unbox your personal package?
Let's find the perfect solution tailored just for you.
Book your free consultation today – together, we’ll shape the offer for you!

Want even more value?
Bring friends, colleagues, or teammates – the more, the merrier, and the better the deal!

Let me know, anytime. Just send me a message. I get back to you.

Send me a message

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Testimonials

A little preview: for the full reviews, simply hit the button below.
Her teaching style is engaging, adaptable, and highly effective, making the learning process both enjoyable and productive. I highly recommend Karin to anyone looking for a structured yet flexible approach to learning German at an advanced level!

Mayookh Sikka
Product Owner

Karin is a great teacher. Always enthusiastic and motivating, she always tailored the classes to my own needs and learning style. I was able to hold thought provoking discussions in German about very controversial topics at this level, something I had never thought before that I would be able to achieve.

Guillermo Olivera
Semiotician, PhD in Critical Theory & Cultural Studies

She is a fantastic teacher and a wonderful person. What impressed me the most is that she is both english and german native so she has an understanding of the cultural differences and shocks that we experience as immigrants in every aspect of life.

Gerard Rubio
Full Stack Engineer

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