This paper reports on an investigation (currently in progress) of theories held by workplace trainers about training practices in contested terrains of the corporate culture. These trainers, enrolled in postgraduate studies at UNENR, undertook reflective examination of their own practices. Drawing on the work of theorists such as Schon (1983, 1987 and 1991), Weil & McGill (1989), Mezirow (1991), Marsick & Watkins (1990), trainers developed processes to assist them become more critically reflective trainer practitioners. Specifically this study reports the first stage of data analysis. A second stage focusing on the theories held about the corporate culture will be presented at a forthcoming International Conference (Jennings, 1992).