The Corporate Ecosystem Services Review (ESR) IS a structured methodology that helps managers proactively develop strategies to manage business risks and opportunities arising from their company's dependence and impact on ecosystems. It is a tool for strategy development, not just for environmental assessment. Businesses can either conduct an Ecosystem Services Review as a stand-alone process or integrate it into their existing environmental management systems. In both cases, the methodology can complement and augment the environmental due diligence tools companies already use. 

The ESR analytical framework consists of 5 steps, and offers case examples and helpful suggestions for each step. It concludes by highlighting a number of resources managers can use when conducting an ESR, including a "dependence and impact assessment" spreadsheet, scientific reports, economic valuation approaches, and other issue-specific tools.