🎈🎈🎈 Celebrating Global OD Certification Week! May 19th - 25th 🌎

Special Speakers, Give Aways, Scholarships and more. Click to see the events line up



The Institute of Organization Development is proud to offer the Global Institute of Organization Development Network (GIODN) to provide opportunities to network, learn and share for all those who are passionate about Organization Development. The Global IOD Network (GIODN) is Global OD Membership Network as it brings together people from across the globe to network, learn and share about Organization Development.


The Vision of the Global IOD Network (GIODN) is to nurture a global network of OD Professionals to share OD Practices and Tools to support Organization and Leadership Effectiveness. 


The Mission of the IOD Global Network is to promote the field of OD through networking, education and collaboration.


$90 per year
  • Continuous Learning through Webinars, Workshops and Certification Programs
  • Listing in the OD Professionals Directory
  • Networking with other OD Professionals
  • Participation in OD Book Club
  • GIODN monthly newsletter
  • Access to OD Toolkit



Nancy Zentis PhD, ODCC

Dr. Nancy Zentis is the President of  the Global Institute of Organization Development Newtwork (GIODN) and the founder and CEO of Institute of Organizational Development (IOD), offering OD Certification Programs in Organization Development, Leadership Development, Talent Management, and Executive Coaching. As a Global leader in the field of OD, Nancy is well-recognized for her accomplishments in the field of OD for over 30 years. Nancy holds a Ph.D. in Organization Development from Capella University, a Masters in Human Resource Development and Business Management from Central Michigan. She is a Member of International Coaching Federation, and certified as an Action Learning Coach, Denison 360, 20/20 Insight 360, DISC, Myers Briggs, and Emotional Intelligence.


Patricia Dammann, MS, MBA, ODCC

Patricia (Patti) Dammann,MBA, MSHR, RN, is the VP of GIODN and the President of the Institute of Organization Development (IOD). She has over 20 years of experience in OD and HR, working with individuals, management and teams to facilitate change and individual and organizational growth. She has worked with a variety of industries including healthcare, pharmaceuticals, transportation, manufacturing, government, engineering, information technology. Patricia holds a Masters of Science in Human Resources and a Masters of Business Administration from the Florida Institute of Technology; Bachelor of Science in Industrial and Labor Relations from Cornell University. She is a Certified Professional Facilitator and Assessor (International Association of Facilitators).

Instructional Designer

Sarah Dunay-Sooker

Sarah Dunay-Sooker is the VP of programs at the Institute of Organization Development. She is an educator with over five years of experience as a team leader and mentor to both students and future educators. Sarah has conducted professional development workshops, created curriculum, and implemented best practice delivery strategies for a team of educators. As a mentor, she has helped educators and students reach their full potential by creating a data-driven approach for mentees and students to accomplish their goals. Currently, she is an instructional designer for the Institute of Organization Development where she creates online certification courses, videos, and on-demand workshops to meet the needs of corporate, not-for-profit, and educational clients. Sarah holds a Bachelor’s and Master’s degree in Education from the University of Florida.

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