What our clients appreciate about us is that we provide their managers with tailor-made support. Together we develop and establish business processes, products or services. Just as you need it. We focus on the areas of energy, digital and entrepreneurship, and involve partners in other topics.

Hantsch Sustainability Consulting Focus Areas: Energy, Digital, Entrepreneurship


7 Schritte für mehr Nachhaltigkeit in Ihrem Unternehmen

In our free initial meeting, we clarify your goals and our joint approach to achieving them.
Subsequently, we record the current status by reviewing documents provided by you and, if necessary, the situation on your premises. Based on this, we analyse the collected data and carry out model calculations.
The results of these serve as the basis for various scenarios, which we elaborate into alternative courses of action for you. In the process, we clearly highlight how each of these contributes to achieving your goals. In the report, the results are clearly presented through graphs and decision matrices.
In the subsequent workshop, we clarify all your questions and work out the concrete next steps for implementation in your company. During the implementation and the subsequent continuous improvement processes, we are at your disposal with advice and support, just as you wish.

We are not satisfied until you are.

Make an appointment today by phone or email for a free initial consultation.

Make an appointment today for a free initial consultation, call us or send an email.

About us
With more than ten years of experience as a consultant for energy efficiency and sustainability, Dr Andreas Hantsch founded Hantsch Sustainablility Consulting in 2023.
He has supported companies from various sectors such as heating/ventilation/refrigeration and air conditioning technology, household appliance technology and data centre technology.
In addition, there are engagements with research institutions, developers of neighbourhoods and smart cities, and in international standardisation. Dedicated to promoting young talent, Dr Hantsch has held lectures at various colleges and universities and supervised over 30 student projects. Together with colleagues, he now pools this knowledge and supports you in your projects.


„I have known Dr. Hantsch since 2013 and have worked with him on a number of successful projects. I greatly appreciate his open manner and expertise.“

Prof. Dr. Uwe Franzke
Managing Director Institut für Luft- und Kältetechnik gGmbH
„What an inspiring and rousing workshop! Simply fantastic! “

Michael Kaiser
Managing Director Smart Systems Hub GmbH
„Merging different worlds in an innovative way is his passion. Always with sustainability in mind and ready to turn the industry upside down.“

Prof. Dr. Manuela Weller, MBA
Chair of SME & Entrepreneurship, Technische Hochschule Mittelhessen
„What impact does digitalisation have on our environment? Andreas raised awareness of this topic in an entertaining and lively way at an event at one of our customers. With his inspiring impulse, he demonstrated ideas on how data centres can be operated more efficiently and used to generate heat. I would be happy to invite him as a speaker again in the future!“

Laura Höper
Pilot at Digital Mindset GmbH
„Through Mr. Hantsch’s advice, we were able to improve our strategy and energy efficiency in our data centres! “

Stephan Sluzewski
Director Infrastructure, TelemaxX Telekommunikation GmbH


  1. How can I imagine the cooperation?
    • We offer holistic consulting with partnership-based cooperation. To this end, we transfer the latest findings from the ivory tower of science to the reality of your company. We always keep the three pillars of sustainability - economy, ecology and social issues - in mind when we work on your tasks. In addition, we are available to you as a sparring partner for your strategic considerations.
  2. How long does a consultancy project take?
    • That depends entirely on your assignment. We have had projects lasting from a few days to projects that we have accompanied over several months.
  3. Do I fall under the reporting requirements for sustainability? I don’t really know how to proceed. Am I in the right place?
    • Yes, speak to us. We will clarify in an initial consultation whether your are obliged to report or not. And how to proceed if required.