Family Businesses: Building Legacies That Last: An exchange from families to families

IESE Barcelona · November 11-13, 2026



Alexis is the CEO of The Family Business Network (FBN), the world’s leading network bringing together over 4,200 business owning families, 20,000 individual members in 32 chapters covering 65 countries. Prior to FBN, Alexis held senior positions, at Lhoist, Verlinvest, Armonea and IFC (World Bank Group). For 6 years, he was Chairman of ToolBox, supporting NGOs by offering professional consultancy.

A Belgian-Swiss citizen, Alexis holds a Master in Management Science (Solvay Business School), is an INSEAD IEP and IMD HPL Graduate.

Professor Liechtenstein holds a Ph.D. in Managerial Science and Applied Economics from The Economics School of Vienna, Austria, a Master’s degree in Business Administration from IESE Business School, and a BSc in Business Economics from the University of Graz.

Professor Liechtenstein specializes in entrepreneurial finance, management of wealth and governance of entrepreneurial families. He is co-author on several publications on private equity. His ongoing research in this field focuses on operational value creation in private equity, impact investing and governance of entrepreneurial families.

Professor Liechtenstein lectures in the MBA and Executive Programs.

As a consultant he collaborated with leading families and financial institutions and serves on the board of family controlled foundations.

Prior to his academic career, Professor Liechtenstein was engaged in the family owned Liechtenstein Global Trust (LGT) dealing with ultra high net worth individuals. He also advised families within the Boston Consulting Group and established and sold two successful businesses.

Marc Sosna

Marc Sosna

Executive Director of Learning Innovation Unit, IESE Business School

Marc is the Executive Director of the Learning Innovation Unit at IESE Business School, I and our team & faculty continuously strive to push the boundaries of how top-executives learn best. Exploring, conceptualizing, designing, and executing learning experiences that have the highest possible impact for leaders in a globalized world. Special focus on Action Learning, Experiential Learning, Blended Learning, Online Learning, among others.

Experienced project manager and consultant for several international corporations and institutions, including projects for/in partnership with the World Bank, the EBRD, the Batten Institute at Darden/University of Virginia, the CEO-Collaborative Forum, or EFER, the European Forum for Entrepreneurship Research.

Involved in research, consulting, and various international executive education and in-company programs across five continents.

Co-author of the book “Entrepreneurial Icebreakers” (2015), published by Palgrave Macmillan, as well as academic and practitioner articles in leading strategy journals, teaching cases, book chapters, and course materials.

Strong focus on entrepreneurship and strategy – specifically business models, growth and turnaround strategies. PhD research focus: Unleashing growth through business model innovation (Department of Strategic Leadership & Global Management, Technical University Berlin).

Studied/worked/lived on four different continents (Europe, US, Africa, Asia).



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