Tot de modellen voor het involveren van de marktsector waarbij nog net geen sprake is van volledige privatisering, behoren 'Build, Operate and Transfer'-, 'Build, Own and Operate'-, en 'Build, Own, Operate and Transfer'- projecten.
Private sector involvement models which stop short of full privatisation include 'Build, Operate and Transfer', 'Build, Own and Operate', and 'Build, Own, Operate and Transfer' projects.