Sustain Value has worked closely with several multinational companies to develop a relatively simple, yet comprehensive and robust methodology for businesses to assess the value and costs of water. The tool enables a business to estimate the value (benefit) of water to themselves and to the different catchment stakeholders, as well as estimate the cost to the business of using the water, and the costs to society from the company’s impact on water availability and quality. The tool applies an integrated catchment approach and is based on the Natural Capital Protocol. It has been successfully applied for business operations in water catchments within Canada, Brazil and the USA.