Reinertsen taught executive courses at Caltech's Center for Technology and Management Education (CTME) for approximately 15 years. These courses on product development management were a key channel for disseminating his ideas to senior product development leaders in industry. The Caltech connection reinforced Reinertsen's positioning as a rigorous, technically grounded thinker — teaching at one of the world's premier science and engineering institutions lent credibility to his quantitative approach to product development. His courses covered the material that became managing-the-design-factory and principles-of-product-development-flow.