Dr. Nancy Zentis, Ph.D, ODCC

Nancy Zentis, PhD, ODCC

Nancy Zentis, Ph.D., is the Founder and CEO of the Institute of Organization Development (IOD) providing online and classroom certification programs in Organization Development, Human Resource Business Partners, Talent Management, Executive Coaching, and Leadership Development, providing certification programs for more than 18 years to over 2500 participants in more than 30 countries.

Patricia Dammann, ODCC

Patricia Dammann, MS, ODCC

Patricia Dammann is the VP Programs and Operations at the Institute of Organization Development and facilitates the Organization Development, Talent Management, and Leadership Development Certification Programs.

Susan Gervasi, ODCC

Susan Gervasi, MS, ODCC

Susan M. Gervasi has an extensive career working in the field of Training and Organizational Development.

Jim Milner, MBA, BCLC, MCC
Executive Coach and Leadership Development

Jim is a Board Certified Master Leadership Coach and business-intelligence, community- development consultant with academic and industry training in Conflict Resolution and Negotiation.


Antoinette (Toni) Ford

Toni Ford


Dr. Cindy Banyai

Dr. Cindy Banyai is the Vice President of Strategy and Operations at the Institute of Organization Development. She has worked in the field of organization development since 2006 as head of her own consulting firm specializing in evaluation


Diana Perez, CPCC, ACC and SHRM-SCP

Diana Perez, CPCC, ACC and SHRM-SCP joined Institute of Organization Development early this year.   Diana brings a wealth of experience as an internal coach and external coach and combines that knowledge with her strong global HR management experience.

For Gene Wheeler Bio

Gene Wheeler

Gene Wheeler has been an adult educator and Human Resource Consultant for over 30 years; helping individuals, teams and organizations grow and strengthen human capital through; recruiting, 360 and psychometric assessments, competency-based leadership development training programs, talent management and executive coaching.

Michael.Sabbag Formal Pic

Michael Sabbag, M.A., ECCP

Michael is a leading author, advisor, executive, and coach with over 30 years of experience working with companies of a large variety of sizes and industries. He helps executives and leaders with people, culture, and strategy focusing on systems across the business and entire employment lifecycle. While his main passion is helping leaders continually coach and develop people, he also has deep expertise in training, HR, organizational change, and strategy.