Corporate water policies are evolving and practices developing, raising issues of what are appropriate private-sector roles in water management. Leaders of multinational companies have pledged to increase water use efficiencies in company plants/premises and down supply chains, while promoting partnerships in water management with a range of actors, public and private, including local communities. A set of questions is, here, posed for consideration by governments and communities, on the extent, limits and implications of private-sector involvement, particularly in contexts of water scarcity.