Urban waste management can be considered actually a foundational economy field. Indeed it consists in a "taken for granted" services system related with probably the most "material" dimension of urban welfare. Both public and private actors rely on a social licensed mandate in the name of "common values" and social returns (public health, environmental protection). Since the Nineties a relevant part of the waste management chain was involved in a corporatization and liberalization process. This paper focuses on the role of in-house municipal companies and on their relationships with the other companies of the field. In the conclusions strategies of the public companies trying to maintain control of their influence sphere in a neo-liberal context are pointed out.
Keywords: In-house procurement, urban waste, public, private, corporatization, competition