Dr. Michael Ottenjann CEO Biederlack GmbH & Board Biederlack of America

“As CEO of an international organisation, the challenges I face are at times quite considerable. Dr. Lassert is an ideal and highly effective sparring partner. His psychological expertise has helped me increase my efficiency in the areas Leadership and Sales.”

Frederic Fack Head of Pharma Vietnam, Merck KGaA

“I have benefited significantly from working with Klaus. He showed me my development areas and helped me make sustainable progress.”

Gunnar Loehr General Manager Arabian Peninsula & Iran, Lufthansa Cargo

“I have repeatedly booked Klaus Lassert as a trainer for my district and station managers. The results have always been excellent.”

Andrea Schäfer Corporate Human Resources, Merck KGaA, Darmstadt Melanie Pöschel, Leadership Development, Arvato Services, Gütersloh

“I am more than willing to provide information on Mr Lassert´s effective work as a trainer and coach for executives at Merck.“

Muthu Balasubramanian Manager Handling Services Bahrain, Lufthansa

“Dr. Klaus Lassert’s knowledge and professionalism are excellent. My seminars with him have been highly effective and help me in my job of being a manager and a leader.”