References
Leaders from 330+ companies trust LEAD21.
Participants from some of the largest and best-known companies in the world – and from ambitious start-ups and scale-ups.
St. Gallen Business School · 11 seminars 2022–2026
93% “excellent” or “very good”.
Customer satisfaction evaluations (KUZU) by St. Gallen Business School, 88 evaluations, scale 1 = excellent to 5 = insufficient.
Voices from the seminar · St. Gallen Business School
“Gerald is an unsung hero. He is an excellent trainer and makes his tools very apt and relatable for the situation and work. His style of teaching brings a very strong impact with ease.”
“Very emotional about his topics and one can feel that. Trainingslager very practical.”
“Very good practices which have strong relevance to daily life.”
“Gerald Huesch sets new standards by brilliantly linking and bundling professional, operational and emotional leadership topics. It leaves the level of ‘training’ and ranks right at the top of personal mentoring and coaching – even though it is a group seminar.”
“One of the best seminars and workshops I have ever attended. I wish I had had this ten years ago.”
“I have rarely experienced someone teaching me something so competently while being so humanistic. I am deeply impressed by this seminar and will draw on it for a long time.”
“An incredibly positive and motivated lecturer. Practical, user-friendly content – and it makes the difference! The best lecturer I have had the pleasure of meeting so far.”
“I have become a fan. The ‘mercilessly’ honest feedback won me over and motivated me from the very first minute.”
“Extremely valuable and gives me a great deal for my operational business & my role as a leader.”
“Mr. Huesch brings a wealth of practical examples and solid, proven methods. Overall very helpful for putting things into practice day to day.”
“Very, very enriching. The practical relevance and the humanity in particular deserve praise.”
“Excellent! Outstanding practical relevance, built on a self-contained modular system of leadership. The lecturer also excels at connecting questions of body language with the impact of the content.”
“In my view very good & recommended for every (aspiring) leader.”
“Special in every respect – the method holds its own against the reality of everyday leadership!”
“Great, practical and easy to apply. Great atmosphere and good content.”
“Very memorable, engaging, demanding, informative and of great value to me. The exercises on my own real-life case are also very valuable for daily work and for implementing selected tools.”
“Helpful, exciting, unique.”
Source: customer satisfaction evaluations (KUZU) by St. Gallen Business School, 11 seminars 2022–2026 (Advanced Leadership, Leadership Excellence, Leadership Training), scale 1 = excellent to 5 = insufficient. Testimonials published with the participants’ consent – by name or initials; German-language seminars translated from German, Leadership Excellence (Zurich 2026) in the original English.
Companies & organizations · alphabetical
Participating leaders came from these organizations.
208 organizations from industry, finance, energy, pharma, aviation, retail, the public sector and academia.









































































































































































































NASA and all other companies named do not endorse any event. The logos show organizations that participants came from.
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