Expert practitioners and
active pioneers

At Dialogos, our continued success and effectiveness ultimately comes down to an extraordinary group of practitioners who bring a broad range of life experience and expertise to every engagement.

William Isaacs

Bill is Founder and President of Dialogos and the author of Dialogue and the Art of Thinking Together (Doubleday). He is a leading authority on collective leadership, the design and development of organizational learning, and the practice and theory of dialogue. For more than 30 years he has consulted to senior leaders of prominent organizations around the world. Read more

Skip Griffin

As a Senior Director at Dialogos, Skip consults with corporations and teams to assist them with effective strategies and the capacity to think together. Skip has a significant background in civil rights, community organizing, and community education initiatives. Read more

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Aaron Frederick

Aaron serves as a Director at Dialogos | Generative Capital, drawing from 20 years of experience as a consultant, founder, facilitator, and educator. He is an active collaborator and coach to social entrepreneurs, high-performing teams, family offices, and organizational founders, offering strategic advising and business development support with a focus on regenerative principles. Read more

Rick Maguire

Rick is a Director of dialogos | Generative Capital and has thirty-five years’ experience leading and developing high-performance teams as a nuclear submarine officer, corporate executive, and strategic business advisor and coach. His coaching clients include leadership in companies that have successfully grown from early-stage venture investment to strategic acquisition and public offering.

Ann Ralston

Ann is a Director of dialogos | Generative Capital and has been coaching leaders and teams for over 20 years, helping build thriving, purpose-driven organizations that surpass their perceived limitations. Her secret? Guiding executives and teams to craft winning cultures founded on core values, accountability, and innovation. She provides the catalyst for her clients to develop effective and adaptive business strategies that deliver results beyond expectations

Alper Tengüz

Alper is an executive coach and organizational consultant focused on helping individuals and teams develop the leadership capabilities to solve their greatest challenges. He resides in Istanbul, Turkey and has coached and consulted executives from the US, Western and Eastern Europe, the Middle East, and South and East Asia. Read more

Cliff Penwell

Cliff has over 25 years of experience as a master facilitator, consultant, mediator and teacher. For the past 15 years he has specialized in facilitating change processes and offering leadership training in diverse environments. Read more

Cees Kramer

Cees is the Director of Dialogos Europe and brings a wealth of experience gained during his 30-plus-year international career with a global energy company and Dialogos. His primary interests are leadership development and team dynamics with a specific focus on integrating dispersed systems and aligning teams across boundaries. Read more

Ayalew Zegeye Asfaw

Ayalew is a Dialogos associate. He is based in Addis Ababa, Ethiopia and is the coordinator for initiatives and activities of Dialogos in Africa. He is founder, general manager and principal consultant of AMDAMU Management Consultancy, founded in 1998. Ayalew focuses on strategy and leadership development as well as facilitation of different processes. Read more