Professor Allen has conducted training using some of the content found in the hyperlink book Supervision for the following organizations. Alpine Engineered Products, AT&T, Comdata, DFW Airport Board, Gifford-Hill-American, Grand Prairie ISD, GTE, Interturbine, National Data Corporation, Oak Farms Dairy, Omni Hearing Systems, Pillowtex, Siemens, Turbomeca, University of Texas Southwestern Medical School, Vecta, and Vought.