VANTISGO GmbH

From the very beginning, my experience with Dr. Sebastian Striewski has been a journey of inspiration and profound insights. As a coach and business consultant, he has a rare talent that tackles complex business challenges with impressive clarity and precision.

Dr. Striewski combines professional expertise with a human warmth that instantly inspires confidence. In every conversation, every consulting session, you not only feel understood, but also valued and motivated. He has a gift for breaking down complex issues into simple, comprehensible concepts that facilitate action and enrich daily practice.

His approach is characterized by a structured, goal-oriented methodology, which he always spices up with a pinch of humour. This combination makes the collaboration not only instructive, but also extremely enjoyable. Dr. Striewski is a master at getting the best out of everyone by responding individually and empathetically to their needs, whether in one-to-one sessions or in team settings.

His ability to act as an enabler for transformative change is particularly impressive. Under his guidance, I have learned not only to overcome challenges, but also to see and use them as opportunities. His advice has not only changed my view of my company, but also promoted my personal growth.

Dr. Striewski is more than a consultant; he is a true master of his craft, a beacon of wisdom in the often stormy seas of business life. Anyone who has the privilege of working with him is not only professionally enriched, but also humanly inspired.

For anyone looking for a coach or business consultant who brings not only expertise but also integrity, humanity and an inspiring manner, I can wholeheartedly recommend Dr. Sebastian Striewski. He will not only meet your expectations, he will far exceed them.

The fact that we as a group of companies have been working together intensively and successfully for several years speaks for itself. Always highly professional and with a clear focus on results, without losing sight of the interpersonal component. Anyone who wants to make a positive and lasting change - whether on a personal or corporate level - is in good hands here.

Sebastian is an excellent coach and strategist who also recognizes the small things that need to be done and addresses them openly. Every project with him works and he knows how to pick people up and inspire them. After 12 months of working with him - thank you!

Works in the interests of his customers, drives his customers forward and allows them to think outside the box. A vision cannot be big enough to achieve its goals

He has been supporting me and our company as a consultant and coach for more than 4 years. Here I was able to get to know his excellent knowledge. In numerous sessions, alone and with my team, I have learned what it means to be a leader. For example, I was taught how to understand a team and the dynamics behind various statements. This was the only way I was able to resolve difficult moments in the team and thus create a positive atmosphere. I was able to experience his in-depth knowledge of psychology time and again using numerous examples. I was particularly impressed by his ability to convey complex concepts in a way that everyone involved, from the managing director to the journeyman, understood. Through his manner, he was always able to create an environment in which I and my employees could develop further. I can recommend him unreservedly as an expert and am very grateful for the valuable experience I have been able to gain over the years.

Sebastian Striewski has played a key role in our success. Without his expert advice and foresight, we would not be where we are today. His strategic insights, tireless commitment and dedication have helped our company to flourish and grow.

Thanks to his professional support, we have been able to overcome obstacles, seize opportunities and achieve our business goals at the highest level. His expertise, commitment to service excellence and dedication to our growth have made us a strong and successful organization.

We greatly appreciate working with him and recommend him without reservation. His contribution to our success is immeasurable and we look forward to a continued fruitful partnership to drive our business forward.
Heiner Hanebutt

If anyone can take you from 0 to 10 out of 10, it's Sebastian. Whether it's dealing with stressors or achieving your goals. He doesn't dictate a path, but instead adapts to my individual needs and gets me where I want to be in a very short space of time. Anyone who is lucky enough to work with him has hit the jackpot.

Frederik is not only a master of his craft as a coach, but also an expert in brain & neuro science. His unique ability to combine these different areas always promises exceptional benefits for his clients.

Frederik and his team created two very informative and productive seminar days that were very entertaining and interesting. The "Principles of Effectiveness" seminar was designed to help us understand "How to get into the flow and become 5x more productive" - and it works.
I can recommend Frederik and the whole Vantisgo team with full conviction.

Hammer.
A super team, with humanity, humor and professionalism to the point and with joy.
Always happy to come back.

Targeted advice allows you to define your own real goals, tailored to your personality. A real game changer for me. I am very grateful for this journey. An absolute recommendation.

120 out of 100 points.

Profound knowledge paired with humor and ease. Working on your own topic with successful results. These are the seminars with Dr. Frederik Hümmeke.

The treasure chest was opened and generously distributed.

Many thanks for all the aha moments during the event.

Great 👏🏻

Vantisgo is not just a hammer, but an entire toolbox. And so that you don't stand helplessly in front of this case, the instructions are included and you can practise using them. Appreciation, mindfulness, respect, clarity and applicability are values that are simply alive and well at all times. I am thrilled, impressed and grateful. What's more, Frederik and Sebastian and their team only seem to attract people who also live these values and are an additional inspiration. I can only warmly recommend Vantisgo! Dear Sebastian, dear Frederik, thank you from the bottom of my heart and see you at the next seminar!

Frederik Hümmeke is the most competent coach on leadership communication in theory and practice that I have had the pleasure of getting to know in over 30 years of professional experience. His ability to present complex topics in an appropriately in-depth and at the same time understandable way is unique.

An absolute recommendation for every manager and those who want to become one. The frameworks and methods are essential for successful business growth.

Thank you for many suggestions and tools for everyday life!

The LEADING PERFORMANCE training with Frederik Hümmeke is highly recommended. It has changed my management style for the better in the long term.

Dr. Frederik Hümmeke & his team from Vantisgo | Handling SHIT💩 do not merely pass on theoretical knowledge to the participants in a seminar. They live & embody their contents authentically. I was able to gain this ''feeling of knowing'' through several contacts/conversations with various team members, as well as Frederik himself, and my impression was always positively confirmed💯.
These experts educate practicably, bring complex contexts easily understandable, with humor across and convey concrete Werkzeuge🛠️zur simple, successful application of those. A flagship for personal development - which exceeds any expectations! 6/5🌟🌟🌟🌟🌟🌟
A role model for entrepreneurs and (m)an absolute recommendation for everyone who wants to hear more than melodious esoteric calendar slogans, but really move something in his, as well as the lives of others will🙏🏽