ROI Institute, Inc .—a research, benchmarking and consulting organization—provides workshops, publications and consulting services surrounding the ROI Methodology™.
DOOR is a global training and coaching provider founded over 30 years ago, in 1981, in the Netherlands. Today, the company provides training, coaching, consulting, e-learning and assessments in over 90 countries around the world.
Tirian produces original high quality and engaging workshop and seminar programs, keynote presentations and individual resources to provide tools and strategies for individual and organizational change.