Environmental, social, and governance (ESG) issues have traditionally been of secondary concern to investors. But in recent years, institutional investors and pension funds have grown too large to diversify away from systemic risks, forcing them to consider the environmental and social impact of their portfolios. Analysis of interviews with 70 executives in 43 global institutional investing firms suggests that ESG is now top of mind for these leaders and that corporations will soon be held accountable by shareholders for their ESG performance. To respond to this shift in focus, companies must publish a statement of purpose, provide investors with integrated financial and ESG reports, increase the involvement of middle managers in ESG issues, invest in robust IT systems, and improve internal systems for measuring and reporting ESG and impact performance information.