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- Don Beck (US) The Spiral Dynamics Group, Inc.
- Ron Cacioppe (Australia) Integral Development
- Susann Cook-Greuter (Switzerland/US) Integral Institute
- Richard Couto (US) Antioch University
- David V. Day (Australia) University of Western Australia
- Bill Drath (US) Center for Creative Leadership
- Mark Edwards (Australia) University of Western Australia
- Wessel Ganzevoort (The Netherlands) University of Amsterdam
- Alain Gautier (France/US) Core Leadership Development
- Charles Hampden-Turner (UK) Cambridge University