As a BAFA and KfW accredited expert, Gregor advises, trains and accompanies organizations in material and energy efficiency as well as climate protection strategies. His other passion lies in the development of organizations, sustainability strategies and sustainable corporate culture.  Among other things, he trains certified sustainability managers for the TÜV academies, is head of the research center for future viability and sustainable energy concepts at DIPLOMA University, editor of the management and research series Future Viability at Springer Gabler Verlag, as well as moderator, speaker and author. As a senator at the Senate of the Economy, he is involved on an honorary basis, among other things, as chairman of the Sustainable Economy Commission. Gregor is owner of his own consulting company ecoistics.institute and external Network Parner of Colourful Excellence.

Thomas mainly advises associations and leisure companies with a focus on finance, controlling and organization. His practical experience is based on leading board & managing director functions at leading fooball clubs, Sport Arena and M&A, among others. Thomas also teaches at the Fresenius University of Applied Sciences. Thomas also initiated the certification process "Ökoprofit" for the BRITA-Arena and accompanied it to the final implementation.  Thomas is external Network Partner of Colourful Excellence