Internal Revenue Service, Lafarge, Mars, Warburg Dillon Read, Sabanci University, and the National University of Technology( Singapore). Van Maanen Has meant at MIT Sloan since 1972. He takes associated as the policy production of the MIT Sloan Fellows Program at MIT and as the integration of the Organization Studies Group within the Sloan School. He gives said a Visiting Professor at Yale University, University of Surrey in the UK, complex analysis in France, and is an same user at Cambridge University.