Dr. Claus Hartmann

Sustainability expert, keynote speaker

Dr. Claus Hartmann
50 Reviews i
published (41%)
out of 123 reviews
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With his humorous and at the same time scientifically sound manner, Claus Hartmann inspires his audience on the subject of sustainability in all areas of life.
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Contact information

Dr. Claus Hartmann
Am Kanal 41
24768 Rendsburg
Germany
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Opening hours

Thursday 07:30 am-06:00 pm

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Review from 10/13/2021  
5.00 out of 5
Excellent
Recommendation
Quality
Value
Services
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Top competencies

Professionalism

5.00 out of 5
3 Reviews

Problem solving expertise

5.00 out of 5
3 Reviews

Customer focus

5.00 out of 5
3 Reviews

50 Reviews on ProvenExpert.com

5.00 out of 5
Excellent
Recommendation
I had booked Dr. Claus Hartmann as a moderator and for a keynote speech on the topic of sustainability as part of an action day on the topic of sustainability in cooperation with the Saarland Ministry for the Environment and Consumer Protection. Both the joint preparation and the event itself went very well. Claus Hartmann took a lot of time for the preparation in order to respond to the needs of the participants, the other actors within the framework of the action day and also to me as the organizer. The communication and planning went smoothly and very pleasantly. During the actual event, Claus Hartmann shone with professional competence, a high degree of eloquence and a pleasant dose of humor. You can tell that the topic of sustainability is close to his heart and that he is fully committed to this topic.
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Customer review & rating for:
Dr. Claus Hartmann
10/13/2021Dominik S.
5.00 out of 5
Excellent
Recommendation
At an action day on the topic of sustainability, Dr. Claus Hartmann gave a very informative presentation
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Customer review & rating for:
Dr. Claus Hartmann
10/12/2021Felix G.
5.00 out of 5
Excellent
Recommendation
A gripping, emotionally touching and very impressive workshop. Thank you very much!
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Customer review & rating for:
Dr. Claus Hartmann
10/12/2021Melanie M.
5.00 out of 5
Excellent
Recommendation
Dr. Claus Hartmann had to cope with a special house challenge with the NEW 4.0 Science Congress, which was held as a hybrid format due to the pandemic situation. With over 20 live broadcasts, key notes, breakout sessions and panel discussions, it was going to be exciting: Does the connection hold, is the sound right, are the lecture and speaker easy to see? Claus Hartmann led through the event in a sovereign and at the same time humorous manner, and spontaneous changes of plan were skilfully bridged. At the same time, as an expert in sustainability, Claus Hartmann was able to take questions from the audience very well and integrate and develop them in the further course of the discussion. This gave an event that was largely conducted digitally an interactive character in which the audience was involved and carried along. The cooperation during the preparation was also uncomplicated, reliable and very trusting. We are already looking forward to organizing the next event with Dr. Claus Hartmann.
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Customer review & rating for:
Dr. Claus Hartmann
03/10/2021Jenny Capel | CC4E der HAW H.
4.60 out of 5
Excellent
Recommendation
- top professional; no waffling or beating around the bush when there is no answer at hand
- refreshingly honest and open
- appreciative in communication
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Customer review & rating for:
Dr. Claus Hartmann
01/29/2021Anonymously
5.00 out of 5
Excellent
Recommendation
Comprehensive 360° view of the topic of sustainability. Clear and enthusiastically presented, practical and with many personal experiences.
Super suitable as a keynote speaker!
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Customer review & rating for:
Dr. Claus Hartmann
09/25/2020Christoph T.
5.00 out of 5
Excellent
Recommendation
Very good presentation on the sustainability of linux
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Customer review & rating for:
Dr. Claus Hartmann
09/18/2020Simon M.
Dr. Claus Hartmann Comment from Dr. Claus Hartmann:
Thank you very much for the very good review! I also really enjoyed the talk on sustainability at the 18th Kiel Open Source and Linux Days.
4.80 out of 5
Excellent
Recommendation
Great talk at the Kieler Linuxtage. Top!
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Customer review & rating for:
Dr. Claus Hartmann
09/18/2020Anonymously
5.00 out of 5
Excellent
Recommendation
Very interesting lecture with audience involvement. Top!
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Customer review & rating for:
Dr. Claus Hartmann
09/18/2020Robert J.
5.00 out of 5
Excellent
Recommendation
On the one hand, Claus Hartmann manages to convey themes in an unagitated way through the calmness he radiates. At the same time, he sets targeted punchlines that round off the story. He understands how to make topics understandable in an approachable way.
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Customer review & rating for:
Dr. Claus Hartmann
06/25/2020Anonymously
5.00 out of 5
Excellent
Recommendation
We invited Mr. Hartmann to speak at two events as an expert on power-to-gas as part of the NEW 4.0 innovation project. Mr. Hartmann is not only very competent in his field, but also knows how to present complex content in a very understandable way.
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Customer review & rating for:
Dr. Claus Hartmann
06/22/2020Hanna N.
Dr. Claus Hartmann Comment from Dr. Claus Hartmann:
It was a great honor and pleasure for me to contribute to the success of the energy transition with my presentation.
5.00 out of 5
Excellent
Recommendation
Great lecture!
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Customer review & rating for:
Dr. Claus Hartmann
06/22/2020Anonymously
5.00 out of 5
Excellent
Recommendation
Any time again!
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Customer review & rating for:
Dr. Claus Hartmann
06/22/2020Anonymously
5.00 out of 5
Excellent
Recommendation
An intelligent and well-read man.
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Customer review & rating for:
Dr. Claus Hartmann
06/22/2020Anonymously
5.00 out of 5
Excellent
Recommendation
Professional and social competence at a very high level!
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Customer review & rating for:
Dr. Claus Hartmann
06/22/2020Anonymously
5.00 out of 5
Excellent
Recommendation
His participation in the AGFW working group was very valuable.
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Customer review & rating for:
Dr. Claus Hartmann
06/20/2020Anonymously
5.00 out of 5
Excellent
Recommendation
That was an inspiring impulse that Dr. Claus Hartmann gave here. Thank you for all the good ideas and insights. Top!
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Customer review & rating for:
Dr. Claus Hartmann
05/19/2020H. K.
5.00 out of 5
Excellent
Recommendation
If you are looking for a successful mix of professional competence and charm as well as touching storytelling on the topic of sustainability, you will definitely find it here!
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Customer review & rating for:
Dr. Claus Hartmann
05/19/2020Raphaela L.
5.00 out of 5
Excellent
Recommendation
Dr. Claus Hartmann is an outstanding expert when it comes to excellent sustainability. He is not only on fire for his topic, but also lives sustainability in his practice and makes it his mission. His speeches inspire audiences. His projects create sustainable results and improvements. His concepts for sustainable finance and sustainable education have especially inspired me as well as brought me to a new level. Thank you and 100% recommendation!
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Customer review & rating for:
Dr. Claus Hartmann
05/19/2020Michelle Xue W. - Consulting & Coaching
5.00 out of 5
Excellent
Recommendation
Dr. Claus Hartmann is an excellent and very practice-oriented expert and professional who convinces all along the line. He lives and loves his topic "sustainability" like no other, and he succeeds in a particularly effective way to accompany his customers and partners to a new level in his speeches, projects and cooperations. He brings in his profound experience as an executive and engineer, which also guarantees the sustainability and impact of his projects in the best possible way. 100% recommendation!
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Customer review & rating for:
Dr. Claus Hartmann
05/19/2020Florian H.
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* All reviews and experiences about Dr. Claus Hartmann are the subjective opinions of those who compose and submit them  |  The profile owner is responsible for the contents of this page  |   Profile active since 10/14/2019  |  Last update: 11/10/2021   |  Report profile

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