This paper examines the private sector’s progress in adapting to climate change by considering information from sixteen case studies, drawn from a range of industries across the private sector. This is complemented by a high-level analysis of broader private sector adaptation based on responses to the 2009 Carbon Disclosure Project questionnaire. The case studies provide insight into companies’ awareness of potential climate risks and vulnerabilities, their progress in assessing specific impacts on their businesses and possible ways to respond to them, and their implementation of adaptation measures and strategies to manage these risks. The analysis also examines how companies are taking advantage of new business opportunities arising from climate change.