This paper, trough a sociological perspective, builds a map of teachers profiles of schools perceived as excellence institutions in the city of Rio de Janeiro. Our hypothesis is that, in the institutions investigated, beyond socialeconomic situation of customers and institutional conditions, teachers qualities are one of the main contributors to the quality of school education and the construction of the prestigious image detained by then. This research is a cutting from a broader research called: Procedures for Producing Quality in Education: School, family and culture developed by SOCED / PUC-Rio - Group Research in Sociology of Education - some years ago. It uses material derived from an empirical survey, composed of three questionnaires (teachers, students, parents) and applied annually in nine schools identified by the press as the best educational institutions in the city of Rio de Janeiro. To articulate macro and micro dimensions and also to expand the corpus of research, this investigation uses, in a second time, qualitative data acquired in fieldwork activities centralized in three of the nine schools of the sample. From the analysis of data such as socialeconomic level, working conditions, school and professional trajectories and teaching practices were possible to trace some characteristics of the teachers that serves the customers of these schools and raise some assumptions about the teachers effect in the production of well succeed school trajectories.