International audience While the literature argues that there are several benefits for construction purchasers who join forces to co-develop the project with contractors and to increase cooperation between the various project stakeholders (construction partnering), little research has been done on the reasons for the lack of extensive diffusion of such methods in the construction industry. This paper aims at understanding the rationale behind the reluctance of construction purchasers for this coordination mechanism in France. In particular the paper investigates the impact of the characteristics of the project but also of the characteristics of the purchasing companies in their project procurement behaviour. The findings reveal that the characteristics of the purchasing companies in terms of purchasing strategy, structure and culture seem more explanatory of their procurement behaviour than of the project characteristics. The paper suggests that the lack of diffusion and understanding of construction partnering may be due to the resistance of purchasers who feel threatened by the structural changes it involves in their purchasing habits.